Jenner Weather
Town • San Francisco Bay Area
Home to about 130 people, Jenner is strung along Highway 1 on the hillside above the Russian River estuary, right where the river meets the Pacific. From its decks and pullouts, visitors look across the water to the harbor seals on the Goat Rock sand spit. The Jenner Headlands rise straight up behind town. Fort Ross State Historic Park is about 11 miles farther up the coast.
Plan your week
10-Day Forecast
Hour by hour
Hourly Forecast
Current Conditions
Comfort Breakdown
Jenner weather today and through the year
It's 58°F at Jenner right now (feels like 54°F), with 11 mph wind and a comfort score of 64. Today's forecast high at Jenner is 59°F, 2°F below the mid November normal of 61°F. No fog in the forecast for today at Jenner. In November, 28% of morning hours here are foggy on average. The best window today is 2 PM to 5 PM, at about 49°F with a 4 mph wind (comfort 69).
September is the warmest month at Jenner, with an average high of 68°F. January is the coldest, with an average low of 44°F. December is the wettest month (10.6 in.), out of about 50.6 in. a year. By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Jenner are September, August, and July. The best hours are usually noon to 3 PM in September, 1 PM to 4 PM in August, and noon to 3 PM in July.
Jenner faces south over the estuary, with the steep slopes of the Jenner Headlands directly behind it. That backdrop takes some of the edge off the northwest wind that scours the open sand at Goat Rock across the river. The sun-facing hillside warms quickly once the fog breaks. On many summer mornings, though, the village sits under the marine layer, the low sheet of fog and cloud that forms over the cold ocean.
Forecast updated November 15, 2026 at 4:00 AM PST. Climate figures come from NOAA 1991-2020 normals. Hourly patterns come from NOAA's HRRR hourly analysis from September 2014 to April 2026.
What to expect at Jenner in the next few days
Active National Weather Service alerts
- High Surf Advisory until Tue 4:00 AM
Fog
No fog in the forecast for today at Jenner. In November, 28% of morning hours here are foggy on average.
Best time to go
The best window today is 2 PM to 5 PM, at about 49°F with a 4 mph wind (comfort 69).
Best day this week
Of the next 7 days, Friday looks best for Jenner, with a 58°F high and midday comfort near 71. Tuesday looks weakest (56).
Rain
Next good chance of rain: today (90%, about 1.01 in.).
Live weather map
Weather around Jenner right now
Light rain and 58° at Jenner right now.
About the live weather map for Jenner
The map centers on Jenner and stacks fog, satellite clouds, and precipitation radar on one view. Clouds come from the GOES-West satellite and rain from NOAA radar, and both show current conditions. Fog comes from our HRRR-based fog model, and the slider steps through its forecast for the next 12 hours.
Dots mark nearby places with their current temperature, colored by comfort score. Use the layer buttons to turn any layer off, or open the full map for every destination in the region.
Nearby Temperature Comparison
Conditions at nearby San Francisco Bay Area destinations
Tip: Bay Area temperatures can change by 20 to 30°F over a short distance because of microclimates.
Jenner vs nearby places
Typical summer conditions compared with Jenner, from the same NOAA HRRR hourly record. The list shows the closest places, then nearby places whose climate differs the most.
| Place | Distance | Summer afternoons | Morning fog | Afternoon wind | Compared with Jenner |
|---|---|---|---|---|---|
| Goat Rock State Beach | 1 mi | same | 34% | 11 mph | same 3 km weather-model cell, so our hourly data cannot tell them apart |
| Jenner Headlands | 1.9 mi | +8°F | 33% | 8 mph | about 8°F warmer on summer afternoons |
| Shell Beach | 2.2 mi | -3°F | 37% | 11 mph | a very similar climate |
| Healdsburg | 17.2 mi | +23°F | 25% | 9 mph | about 23°F warmer on summer afternoons |
| Windsor | 17.3 mi | +21°F | 30% | 9 mph | about 21°F warmer on summer afternoons and about 32% less rain a year |
| Geyserville | 20.8 mi | +25°F | 22% | 9 mph | about 25°F warmer on summer afternoons and less summer morning fog (22% vs 34% of morning hours) |
Places with a climate like Jenner's
- Tomales Bay State Park (25 mi away): nearly the same temperatures every month
- Salt Point State Park (14 mi away): nearly the same temperatures every month
- Point Reyes National Seashore (31 mi away): similar temperatures through the year
Climate Dashboard
Current conditions vs. NOAA normals and recent destination baseline
What the Jenner climate comparisons mean
These cards compare recent conditions at Jenner with the available local baseline. Temperature and year-to-date rainfall use long-term normals when available. Fog, sunshine, wind, and comfort use the matching recent or modeled baseline identified on each card.
Positive and negative differences describe how Jenner departs from its own usual pattern. They should not be read as a direct comparison with another city or as a forecast beyond the period shown.
Jenner weather by month
September is the warmest month at Jenner, with an average high of 68°F. January is the coldest, with an average low of 44°F. December is the wettest month (10.6 in.), out of about 50.6 in. a year. Morning fog peaks in August, when fog or low cloud covers 41% of the hours from 6 to 10 AM. June has the clearest middays, with clouds covering about 22% of the sky from 11 AM to 3 PM.
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Jenner are September, August, and July. The best hours are usually noon to 3 PM in September, 1 PM to 4 PM in August, and noon to 3 PM in July.
| Month | Avg high | Avg low | Rain | Rainy days | Morning fog | Midday cloud | Afternoon wind | Daylight | Comfort |
|---|---|---|---|---|---|---|---|---|---|
| Jan | 57°F | 44°F | 9.8 in | 13 | 37% | 40% | 7 mph | 9.8 h | 29 |
| Feb | 58°F | 44°F | 9.7 in | 13 | 22% | 31% | 9 mph | 10.7 h | 32 |
| Mar | 59°F | 45°F | 6.8 in | 11 | 25% | 34% | 10 mph | 11.9 h | 38 |
| Apr | 60°F | 46°F | 3.7 in | 8 | 23% | 29% | 12 mph | 13.2 h | 59 |
| May | 63°F | 48°F | 1.6 in | 5 | 25% | 29% | 12 mph | 14.3 h | 68 |
| Jun | 66°F | 50°F | 0.5 in | 3 | 24% | 22% | 12 mph | 14.8 h | 77 |
| Jul | 67°F | 51°F | 0.0 in | 1 | 39% | 29% | 11 mph | 14.6 h | 79 |
| Aug | 68°F | 52°F | 0.1 in | 1 | 41% | 30% | 10 mph | 13.6 h | 82 |
| Sep | 68°F | 52°F | 0.2 in | 2 | 34% | 25% | 10 mph | 12.3 h | 83 |
| Oct | 67°F | 50°F | 2.2 in | 6 | 30% | 25% | 9 mph | 11.1 h | 70 |
| Nov | 61°F | 46°F | 5.5 in | 10 | 28% | 28% | 7 mph | 10.0 h | 47 |
| Dec | 57°F | 44°F | 10.6 in | 14 | 37% | 42% | 7 mph | 9.5 h | 28 |
Morning fog is the share of hours from 6 to 10 AM with fog or low cloud. Midday cloud is the average from 11 AM to 3 PM, and afternoon wind is the average from 1 to 5 PM. The highlighted rows are the most comfortable months.
What makes Jenner's weather different
When the fog burns off
2 PMwhen August fog usually thins (48% foggy at 7 AM)
Fog or low cloud covers Jenner in 48% of 7 AM hours in August, the foggiest month. It usually thins to a third of that by 2 PM, but 15% of mid-afternoon hours are still foggy. February mornings are the least foggy (22%).
When the wind picks up
noonwhen afternoon wind builds, February–October
From February through October, wind at Jenner typically builds after noon. In June it peaks around 4 PM, averaging 13 mph with 38% of those hours windy, while mornings average 5 mph.
Microclimate
+8°FJenner Headlands, 1.9 mi away, on summer afternoons
Jenner Headlands, 1.9 miles away, runs about 8°F warmer than Jenner on summer afternoons.
Model resolution
2 placesshare one 3 km NOAA HRRR grid cell
Jenner shares one 3 km grid cell in NOAA's HRRR model with Goat Rock State Beach. The hourly fog, wind, cloud, and temperature patterns on this site are the same for both. Real differences between them come from hills, elevation, and wind exposure that the model cannot resolve.
Daylight
9.5–14.8 hof daylight, Dec to Jun
Days at Jenner range from about 9.5 hours in December to 14.8 hours in June. In mid-June the sun sets around 8:36 PM, and in mid-December around 4:57 PM.
Seasons at Jenner
- Warm seasonJul 31 – Oct 5 · highs 67°F+
The warm season lasts about 2.2 months, from Jul 31 to Oct 5, when the average high is 67°F or warmer. Highs peak around Sep 8 at about 68°F.
- Cool seasonNov 30 – Mar 25 · highs 59°F or lower
The cool season runs from Nov 30 to Mar 25, when the average high is 59°F or lower. The coldest nights come around Jan 8, with an average low near 44°F.
- Rainy seasonOct 26 – Apr 24 · 91% of the year's rain
The rainy season runs from Oct 26 to Apr 24, when a day has at least a 24% chance of measurable rain. That stretch brings 91% of the year's rain.
The dark line marks today. Season dates come from the smoothed daily NOAA 1991-2020 normals. Counting from Oct. 1, a typical year has its first inch of rain by Oct 15 and half of its annual total by Jan 23.
Days per year and extremes (Nov 1, 2024 to Oct 31, 2026)
This record runs from Nov 1, 2024 to Oct 31, 2026. Over this record, Jenner averaged no days at 90°F or hotter and no freezing nights. It averaged 25 days a year with at least half an inch of rain and 5 afternoons with wind of 20 mph or more at 2 PM. About 140 mornings a year had 3 or more hours of fog or low cloud.
In the same record, the hottest day was Sep 9, 2026 (84°F) and the coldest night was Feb 18, 2026 (37°F). The wettest day was Nov 21, 2024 (7.61 in.), and the strongest 2 PM gust was 44 mph on Feb 13, 2025.
- 0days at 90°F or hotter
- 0nights at or below freezing
- 25days with ½ in. of rain or more
- 5afternoons with 20+ mph wind
- 140mornings with 3+ hours of fog or low cloud
- Hottest day84°FSep 9, 2026
- Coldest night37°FFeb 18, 2026
- Wettest day7.61 inNov 21, 2024
- Strongest 2 PM gust44 mphFeb 13, 2025
What shapes Jenner's weather
Jenner is where the Russian River's gap through the Coast Range meets the sea. On many summer evenings, the village watches the fog bank funnel past it and upriver. The next morning that fog drains back down the canyon and often lingers over the estuary after inland river towns have cleared. It usually thins by early afternoon.
The Russian River estuary in front of Jenner changes with the seasons. Sonoma Water says the sandbar at the mouth sometimes closes, and rising water behind it can threaten low-lying property. The agency breaches the bar when needed, and from May 15 to October 15 it manages an outlet channel instead. In winter, runoff from the whole Russian River watershed pours past town to the sea.
Tips for visiting Jenner
Stop at the Jenner Visitor Center
State Parks docents staff it most days year-round. Call (707) 865-9757 to confirm hours.
Watch seals from across the river
Hundreds of harbor seals haul out on the sand spit from spring through summer, and Goat Rock Beach is the popular viewing spot.
Paddle the estuary on calm mornings
Kayakers can get close to the seals here. Go before the afternoon wind builds, and keep your distance.
Hike straight up from the river
The Jenner Headlands Preserve rises directly from the river mouth, with trails through prairie, oak woodland, and redwoods.
Keep a warm layer in the car
When the fog rolls back in off the estuary, the temperature can drop fast, so bring layers.
Jenner through the seasons
- Spring (March–May)
- Harbor seals start hauling out on the sand spit to raise pups, and the weather turns more reliable by May.
- Summer (June–August)
- Summer mornings are often foggy, and the fog usually thins by early afternoon. Days are long, and afternoons on the estuary turn mild.
- Fall (September–October)
- Fall brings some of the most settled weather of the year, along with clean swells for surfers.
- Winter (November–February)
- Winter is the season for storm watching and whale watching, with high, muddy river flows after heavy rain.
Activities and the weather that matters
- Kayaking the estuary: Calm, fog-free mornings are best. Skip it when the river runs high and fast after winter storms.
- Wildlife watching: Ospreys, bald eagles, and river otters live around the estuary along with the seals. Calm, clear days are best for binoculars.
- Storm watching: Storm watching is a winter pastime in Jenner. Watch from the road and pullouts, not the beach, when the surf is up.
Official sources and current conditions
- Stewards of the Coast and Redwoods: Sonoma Coast State Park
- Sonoma Water: Russian River estuary management
- Caltrans QuickMap: Highway 1 road conditions
- NWS forecast for Jenner
Numbers on this page come from NOAA data. The text draws on the official sources linked above.
Historical Climate Data
Long-term weather patterns and climate data
Data sources: Recent temperatures come from NOAA URMA and recent precipitation from NOAA Stage IV. Fog, cloud, wind, humidity, and sunshine come from NOAA HRRR, and long-term baselines from NOAA 1991-2020 climate normals.
Climate Overview
Based on NOAA 30-year temperature/rain normals (1991-2020) with recent fog/sun baseline
🌟 Best Months to Visit
⚠️ Challenging Months
Monthly Breakdown
| Month | Comfort | High/Low | ☀️ Sun | 🌫️ Fog | 💧 Rain | Perfect |
|---|---|---|---|---|---|---|
| November 2024 | 73 | 58.3° / 48° | 6.1h | 6d | 17.53" | 13 |
| December 2024 | 65 | 57.9° / 48.1° | 4.7h | 14d | 11.58" | 11 |
| January 2025 | 77 | 56.4° / 46.4° | 6.7h | 10d | 0.57" | 17 |
| February 2025 | 68 | 55.4° / 45.1° | 5.8h | 9d | 13.76" | 10 |
| March 2025 | 72 | 55.1° / 44.9° | 7.3h | 10d | 5.18" | 13 |
| April 2025 | 79 | 57° / 46.2° | 9.2h | 11d | 0.71" | 14 |
| May 2025 | 88 | 65° / 50° | 12.2h | 2d | 0.16" | 26 |
| June 2025 | 86 | 63.1° / 49.8° | 11.9h | 7d | 0" | 22 |
| July 2025 | 81 | 61.8° / 51.4° | 9.8h | 11d | 0" | 18 |
| August 2025 | 88 | 68.8° / 54.8° | 10.6h | 8d | 0" | 27 |
| September 2025 | 87 | 68.1° / 56° | 8.8h | 7d | 0.12" | 24 |
| October 2025 | 80 | 63.7° / 52.7° | 6.7h | 13d | 1.39" | 19 |
| November 2025 | 70 | 60.3° / 51.2° | 5.5h | 15d | 5.95" | 9 |
| December 2025 | 63 | 56.5° / 47.5° | 4.5h | 22d | 8.65" | 4 |
| January 2026 | 76 | 59.2° / 48.5° | 6.5h | 8d | 7.56" | 18 |
| February 2026 | 71 | 58.9° / 48.6° | 6.1h | 5d | 6.65" | 12 |
| March 2026 | 92 | 66.7° / 52.2° | 9.8h | 2d | 0.05" | 28 |
| April 2026 | 80 | 58.8° / 48.2° | 9.3h | 7d | 4.72" | 18 |
| May 2026 | 86 | 62.9° / 50.5° | 11.4h | 9d | 0.55" | 23 |
| June 2026 | 86 | 65° / 52.1° | 11.1h | 9d | 0.02" | 22 |
| July 2026 | 88 | 67.6° / 53.2° | 11.5h | 6d | 0" | 27 |
| August 2026 | 85 | 65.5° / 52.9° | 10.2h | 14d | 0" | 26 |
| September 2026 | 87 | 67.9° / 54.5° | 9.8h | 11d | 0.32" | 24 |
| October 2026 | 88 | 67.1° / 52.9° | 8.2h | 2d | 0.13" | 28 |
Climate Trends
Average Temperature by Month
About the Jenner climate charts
The temperature chart compares average monthly highs and lows at Jenner, showing both the seasonal cycle and the typical day-to-night range. The comfort chart summarizes how often the combined weather pattern is favorable rather than judging temperature alone.
Precipitation shows the total recorded or modeled rainfall for each month at Jenner. Sunshine compares average bright-sky hours with the daylight available, while fog shows the average number of morning fog or low-cloud hours per day. Switch between the chart tabs to compare the same months across each measure.
Hourly Temperature, Fog, Wind, Cloud Cover, and Solar Radiation Patterns
Average local hour by month from 2014-09-30 to 2026-04-30
- Temperature: At Jenner, the warmest typical hour is 3 PM in September (67°F). The coldest is 7 AM in February (46°F).
- Fog: Fog or low cloud covers Jenner in 48% of 7 AM hours in August, the foggiest month. It usually thins to a third of that by 2 PM, but 15% of mid-afternoon hours are still foggy. February mornings are the least foggy (22%).
- Wind: From February through October, wind at Jenner typically builds after noon. In June it peaks around 4 PM, averaging 13 mph with 38% of those hours windy, while mornings average 5 mph.
- Cloud Cover: June middays are the clearest at Jenner (22% average cloud cover), and December middays are the cloudiest (42%).
- Solar Radiation: The strongest typical sun at Jenner comes at 1 PM in June, averaging 913 W/m².
How to read the hourly heatmaps for Jenner
This heatmap shows how average temperature at Jenner changes by hour and month. Read left to right for the seasons and top to bottom for the time of day. Warmer colors mark the usual afternoon peaks, and cooler colors show overnight and winter lows.
This heatmap shows when fog or low cloud is most likely at Jenner. Darker cells mark the months and hours when fog has been most common. They help separate overnight or morning fog from cloud that tends to linger into the afternoon.
This heatmap shows the typical hourly wind pattern at Jenner through the year. It makes recurring afternoon wind, calmer overnight periods, and seasonal changes easier to compare than a single daily wind value.
This heatmap shows average cloud cover at Jenner for every month and hour. Use it to see whether cloudiness is mainly an overnight and morning pattern or commonly persists during the part of the day you plan to visit.
This heatmap shows the average solar radiation reaching Jenner by month and hour. Brighter cells indicate the strongest typical sun, while muted cells can reflect nighttime, shorter winter days, cloud cover, smoke, or terrain shading.
Each cell combines one month with one local hour. Hover over or focus on a cell for its value and sample coverage. The red marker shows the current month and hour.
How recent months compared at Jenner
- October 2026 recap: October 2026 at Jenner averaged a high of 67°F, 3°F warmer than October 2025 (64°F).
- Rain year: The 2025-26 rain year (Oct. 1 to Sep. 30) brought 35.9 in. of rain to Jenner, 71% of the 50.6 in. normal.
Location Details
Jenner weather questions
Everything you need to know about weather and visiting Jenner
What is the weather like at Jenner today?
It's 58°F at Jenner right now, with a comfort score of 64 (good). Today's forecast high at Jenner is 59°F, 2°F below the mid November normal of 61°F. The best window today is 2 PM to 5 PM, at about 49°F with a 4 mph wind (comfort 69).
What is the best month to visit Jenner?
By typical temperature, wind, cloud, humidity, and rain odds, the most comfortable months at Jenner are September, August, and July. The best hours are usually noon to 3 PM in September, 1 PM to 4 PM in August, and noon to 3 PM in July. The warm season lasts about 2.2 months, from Jul 31 to Oct 5, when the average high is 67°F or warmer. Highs peak around Sep 8 at about 68°F.
What are the warmest and coldest months at Jenner?
September is the warmest month at Jenner, with an average high of 68°F. January is the coldest, with an average low of 44°F.
When does the fog burn off at Jenner?
Fog or low cloud covers Jenner in 48% of 7 AM hours in August, the foggiest month. It usually thins to a third of that by 2 PM, but 15% of mid-afternoon hours are still foggy. February mornings are the least foggy (22%).
When is it windiest at Jenner?
From February through October, wind at Jenner typically builds after noon. In June it peaks around 4 PM, averaging 13 mph with 38% of those hours windy, while mornings average 5 mph.
How much rain does Jenner get?
December is the wettest month (10.6 in.), out of about 50.6 in. a year. The rainy season runs from Oct 26 to Apr 24, when a day has at least a 24% chance of measurable rain. That stretch brings 91% of the year's rain. The 2025-26 rain year (Oct. 1 to Sep. 30) brought 35.9 in. of rain to Jenner, 71% of the 50.6 in. normal.
How does Jenner weather compare with Jenner Headlands?
Jenner Headlands, 1.9 miles away, runs about 8°F warmer than Jenner on summer afternoons.
What kind of place is Jenner?
Home to about 130 people, Jenner is strung along Highway 1 on the hillside above the Russian River estuary, right where the river meets the Pacific. From its decks and pullouts, visitors look across the water to the harbor seals on the Goat Rock sand spit. The Jenner Headlands rise straight up behind town. Fort Ross State Historic Park is about 11 miles farther up the coast.
What is Jenner weather like in November?
November at Jenner averages a high of 61°F and a low of 46°F, with 5.5 in. of rain over about 10 rainy days. About 28% of morning hours are foggy. Afternoon wind averages 7 mph.
More about Jenner weather
Guides that explain the weather here and nearby
Data sources and methods
- Monthly temperatures and precipitation: NOAA 1991-2020 normals.
- Fog, cloud, wind, sun, and comfort by hour and month: NOAA's HRRR hourly analysis from September 2014 to April 2026.
- Daily records and recent months: NOAA URMA and HRRR analyses, plus NOAA Stage IV precipitation.
- Nearby comparisons and regional rankings use the same hourly HRRR summaries for every destination in the region.
- Alerts: National Weather Service. Tides and ocean temperature: NOAA CO-OPS, where shown.
- All statements on this page are computed from these datasets, apart from the “What shapes the weather” guide, which cites its sources inline.
- Stewards of the Coast and Redwoods, Sonoma Coast facilities and activities (accessed 2026-10-27)
- Sonoma County Tourism, Jenner (accessed 2026-10-27)
- Stewards of the Coast and Redwoods, Sonoma Coast climate (accessed 2026-10-27)
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