Olompali State Historic Park Weather

ParkSan Francisco Bay Area

Historic Miwok and ranch site

65°
🙂
Comfort Score
75(B)
Great
Weather updated August 16, 2026 at 9:31 PM PDT

Olompali State Historic Park weather at a glance

Olompali State Historic Park is a park at 400 feet in San Francisco Bay Area. Historic Miwok and ranch site. Notable features include sunny, warm, historic, and hiking.

Current conditions are 65°F, feeling like 65°F, with 62% humidity, winds near 9 mph, 100% cloud cover, and a 0% chance of precipitation. Mild and overcast.

The location-specific climate baseline shows an average daily high of 68°F and an average low of 46°F, with about 0.0 hours of sunshine per day and 0.0 hours of morning fog per day. Expected annual precipitation is approximately 27.1 inches.

Current Conditions

Temperature
65°F
Feels like 65°F
Humidity
62%
Wind
9 mph
NW • Gusts 15 mph
Cloud Cover
100%
Precip Chance
0%

Comfort Breakdown

Less comfortableMore comfortable
Temperature86
Wind75
Night Sky5
Humidity70
Precipitation100

Hourly Forecast

Today

TimeTempComfortAQIWindPrecipConditions
Now67°75 (B)10 mph0%☁️ Cloudy
10pm64°74 (B-)8 mph0%☁️ Cloudy
11pm63°75 (B)3 mph0%☁️ Cloudy

Tomorrow

TimeTempComfortAQIWindPrecipConditions
12am60°72 (B-)2 mph0%☁️ Cloudy
1am58°69 (C)1 mph0%☁️ Cloudy
2am57°63 (C)3 mph0%☁️ Cloudy
3am57°61 (C)4 mph0%☁️ Cloudy
4am56°60 (C)5 mph0%☁️ Cloudy
5am56°62 (C)4 mph0%☁️ Cloudy
6am56°62 (C)3 mph0%☁️ Cloudy
7am55°60 (C)4 mph0%☁️ Cloudy
8am60°72 (B-)3 mph0%☁️ Cloudy
How to read the Olompali State Historic Park hourly chart

The hourly chart follows the next 48 forecast hours at Olompali State Historic Park. Use the temperature view to see warming and cooling through the day, and the comfort view to see when the combined temperature, wind, clouds, precipitation, and air quality should feel most favorable.

The wind view compares sustained wind with stronger gusts at Olompali State Historic Park. The AQI view uses the current observation for “Now” and modeled AQI-equivalent guidance for later hours when forecast smoke data is available.

Weather Maps

About the weather maps for Olompali State Historic Park

Each preview is centered on Olompali State Historic Park, with the red pin marking its approximate location. Satellite imagery provides cloud context, radar shows nearby precipitation, and the fog view shows the marine-layer or low-cloud field when that regional layer is available.

These images cover a wider area than the point forecast, so a nearby cloud or rain band may not be directly over Olompali State Historic Park. Open a preview for the interactive map and its latest timestamp before making a weather-sensitive decision.

7-Day Forecast

DayHigh/LowComfortPrecipConditions
Today🏆 Best85° / 58°80 (B)0%☀️ Sunny
Mon83° / 55°76 (B)0%☀️ Sunny
Tue91° / 54°71 (B-)0%☀️ Sunny
Wed100° / 55°71 (B-)0%☀️ Sunny
Thu93° / 58°73 (B-)0%☀️ Sunny
Fri90° / 58°73 (B-)1%☀️ Sunny
Sat92° / 57°72 (B-)0%☀️ Sunny

Best day this week: Today (Comfort score: 80)

Climate Dashboard

Current conditions vs. NOAA normals and recent destination baseline

Today's High vs Normal
85°Fforecast
7° above normal
Normal: 78°F
Rainfall Year-to-Date
12.0"
34% below average
30-yr avg: 18.2"
Sunny Days
24last 28 days
2 fewer than baseline
Recent baseline: 26
Foggy Days
5last 28 days
vs 10 recent baseline
Clearer than usual
Avg Wind Speed
5.8 mphlast 28 days
2.2 mph calmer than baseline
Recent baseline: 8.0 mph
Comfort Score
8828-day avg
On par with typical
Recent baseline: 88
What the Olompali State Historic Park climate comparisons mean

These cards compare recent conditions at Olompali State Historic Park 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 Olompali State Historic Park 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.

Historical Climate Data

Long-term weather patterns and climate data

Data sources: NOAA URMA for recent temperature history, NOAA Stage IV for recent precipitation, NOAA HRRR for fog, cloud, wind, humidity, and sunshine signals, and NOAA 1991-2020 climate normals for long-term baselines.

Climate Overview

Based on NOAA 30-year temperature/rain normals (1991-2020) with recent fog/sun baseline

83
Avg Comfort
68.5°
Avg High
46.3°
Avg Low
73%
Perfect Days
☀️ Avg Sunshine (recent)9.2h/day
🌫️ Avg Fog (recent)1.7h/day
💧 Avg Annual Rain27.1"
🌧️ Rainy Days/yr89 (24%)
🌫️ Foggy Days/yr (recent)95
✨ Perfect Days (80+)471

🌟 Best Months to Visit

1. June86
75.6° / 50.5° · ☀️ 13.2h
1 foggy days · 5 rainy days
2. August82
78° / 52.4° · ☀️ 12.1h
2 foggy days · 5 rainy days
3. May79
70.1° / 47.6° · ☀️ 12.4h
3 foggy days · 6 rainy days

⚠️ Challenging Months

1. December29
56.9° / 40° · ☀️ 5.3h
💧 6.2" · 12 rainy days · 18 foggy days
2. January33
57° / 40° · ☀️ 7.1h
💧 6.2" · 11 rainy days · 12 foggy days
3. February37
60.7° / 41.9° · ☀️ 6.1h
💧 5.6" · 11 rainy days · 10 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
August 20249182.2° / 57.1°12h1d0.07"26
September 20249282.4° / 55.9°11.1h3d0.08"29
October 20249179.3° / 55.8°9.6h3d0.35"29
November 20247961.8° / 47°6.9h9d5.67"21
December 20246856.7° / 45.1°5.6h14d6.31"12
January 20258057° / 41.5°7.5h9d0.71"20
February 20257258.7° / 43.6°6.1h9d6.31"16
March 20257859.9° / 45.4°8.8h7d3.07"16
April 20258866.2° / 47.5°11h10d0.27"26
May 20259272.4° / 51.2°12.9h1d0.11"31
June 20259375.9° / 53.2°13.2h1d0"30
July 20259276.1° / 55.5°12.5h7d0"31
August 20259283.2° / 57.1°12.2h3d0.08"31
September 20259080.7° / 59.2°10.3h4d0.5"28
October 20258871.3° / 53.5°8.3h11d1.08"24
November 20257562.8° / 50.2°6.2h18d3.23"13
December 20256354.2° / 44.9°4.9h21d5.62"6
January 20267256.6° / 44.1°6.6h15d3.52"12
February 20267260.6° / 45.9°6.2h10d4.32"11
March 20269472.6° / 50°10.7h4d0.49"29
April 20268566.5° / 49.3°10.4h4d3.41"22
May 20268968.6° / 52°11h3d0.3"8
Last updated: 5/10/2026

Climate Trends

Average Temperature by Month

89°F76°F63°F49°F36°FOct '24Nov '24Dec '24Jan '25Feb '25Mar '25Apr '25May '25Jun '25Jul '25Aug '25Sep '25Oct '25Nov '25Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26
Average High
Average Low
About the Olompali State Historic Park climate charts

The temperature chart compares average monthly highs and lows at Olompali State Historic Park, 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 Olompali State Historic Park. 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

How to read the temperature heatmap for Olompali State Historic Park

This heatmap shows how average temperature at Olompali State Historic Park changes by hour and month. Read left to right for the seasons and top to bottom for the time of day; warmer colors identify the usual afternoon peaks and cooler colors show overnight and winter lows.

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 to read the fog heatmap for Olompali State Historic Park

This heatmap shows when fog or low cloud is most likely at Olompali State Historic Park. Darker cells mark month-and-hour combinations with a stronger historical fog signal, which helps separate overnight or morning fog from cloud that tends to linger into the afternoon.

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 to read the wind heatmap for Olompali State Historic Park

This heatmap shows the typical hourly wind pattern at Olompali State Historic Park through the year. It makes recurring afternoon wind, calmer overnight periods, and seasonal changes easier to compare than a single daily wind value.

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 to read the cloud cover heatmap for Olompali State Historic Park

This heatmap shows average cloud cover at Olompali State Historic Park 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.

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 to read the solar radiation heatmap for Olompali State Historic Park

This heatmap shows the average solar radiation reaching Olompali State Historic Park 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.

Loading interactive climate heatmaps…

Location Details

📍
Coordinates
38.1311, -122.5644
⛰️
Elevation
400 ft
🏷️
Type
Park
🏷️
Tags
#sunny#warm#historic#hiking
Map
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Get Directions →

Frequently Asked Questions

Everything you need to know about weather and visiting Olompali State Historic Park

What is the weather at Olompali State Historic Park right now?

Current conditions at Olompali State Historic Park are 65°F, feeling like 65°F, with 62% humidity, winds near 9 mph, 100% cloud cover, and a 0% chance of precipitation. Mild and overcast

What temperatures are typical at Olompali State Historic Park?

The location-specific record for 1991-01-01 through 2020-12-31 shows an average daily high of 68°F and an average low of 46°F at Olompali State Historic Park. These are averages across the year; the monthly climate table on this page shows the warmer and cooler seasons separately.

How much rain does Olompali State Historic Park get?

The location-specific climate baseline estimates about 27.1 inches of precipitation and 89 days with measurable rain in a typical year at Olompali State Historic Park. The monthly breakdown shows when that rain is most likely.

How often is Olompali State Historic Park foggy?

Olompali State Historic Park averages about 0.0 hours of morning fog per day across the location-specific climate baseline, with approximately 0 foggy days in a typical year. Fog varies considerably by season, so check the monthly breakdown and current forecast for visit planning.

What are the best months to visit Olompali State Historic Park for comfortable weather?

Based on the destination's recorded comfort, temperature, sunshine, rain, and fog data, the strongest months are March 2026 (73°F/50°F average high/low and a 94 comfort score), June 2025 (76°F/53°F average high/low and a 93 comfort score), and September 2024 (82°F/56°F average high/low and a 92 comfort score). “Best” depends on the activity, so use the monthly table for the exact tradeoffs.

What kind of destination is Olompali State Historic Park?

Olompali State Historic Park is a park at 400 feet. Historic Miwok and ranch site. Notable features include sunny, warm, historic, and hiking.

💡 Local Tip: San Francisco Bay Area weather can change dramatically within short distances and throughout the day. Always check current conditions before visiting Olompali State Historic Park.
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