Tennessee Valley Beach Weather

BeachSan Francisco Bay Area

Secluded Marin beach via hike

64°
🙂
Comfort Score
83(B)
Great
Weather updated September 12, 2026 at 4:36 PM PDT

Tennessee Valley Beach weather at a glance

Tennessee Valley Beach is a beach at 10 feet in San Francisco Bay Area. Secluded Marin beach via hike. Notable features include foggy, cool, hiking, and quiet.

Current conditions are 64°F, feeling like 57°F, with 79% humidity, winds near 23 mph, 12% cloud cover, and a 0% chance of precipitation. Mild and windy with some clouds.

The location-specific climate baseline shows an average daily high of 64°F and an average low of 50°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.

Plan your week

10-Day Forecast

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  1. Today
    Sep 12
    66°56°
    Comfort
    92
    0%
    Precip 0 in
  2. Sun
    Sep 13
    71°57°
    Comfort
    96
    0%
    Precip 0 in
  3. Best day
    Mon
    Sep 14
    76°57°
    Comfort
    97
    0%
    Precip 0 in
  4. Tue
    Sep 15
    70°55°
    Comfort
    96
    0%
    Precip 0 in
  5. Wed
    Sep 16
    70°56°
    Comfort
    96
    2%
    Precip 0 in
  6. Thu
    Sep 17
    73°57°
    Comfort
    97
    1%
    Precip 0 in
  7. Fri
    Sep 18
    77°56°
    Comfort
    96
    0%
    Precip 0 in
  8. Sat
    Sep 19
    81°55°
    Comfort
    90
    1%
    Precip 0 in
  9. Sun
    Sep 20
    76°56°
    Comfort
    89
    2%
    Precip 0 in
  10. Mon
    Sep 21
    69°56°
    Comfort
    88
    3%
    Precip 0 in

Hour by hour

Hourly Forecast

Drag or swipe to browse
  1. Today
    Now
    64°
    Comfort
    85
    0%
    0 in
  2. Today
    5 PM
    63°
    Comfort
    82
    0%
    0 in
  3. Today
    6 PM
    63°
    Comfort
    82
    0%
    0 in
  4. Today
    7 PM
    62°
    Comfort
    81
    0%
    0 in
  5. Sunset7:22 PM
  6. Today
    8 PM
    61°
    Comfort
    81
    0%
    0 in
  7. Today
    9 PM
    60°
    Comfort
    82
    0%
    0 in
  8. Today
    10 PM
    60°
    Comfort
    84
    0%
    0 in
  9. Today
    11 PM
    59°
    Comfort
    86
    0%
    0 in
  10. Sun
    12 AM
    59°
    Comfort
    86
    0%
    0 in
  11. Sun
    1 AM
    58°
    Comfort
    84
    0%
    0 in
  12. Sun
    2 AM
    58°
    Comfort
    82
    0%
    0 in
  13. Sun
    3 AM
    57°
    Comfort
    81
    0%
    0 in
  14. Sun
    4 AM
    57°
    Comfort
    81
    0%
    0 in
  15. Sun
    5 AM
    57°
    Comfort
    81
    0%
    0 in
  16. Sun
    6 AM
    57°
    Comfort
    81
    0%
    0 in
  17. Sunrise6:50 AM
  18. Sun
    7 AM
    57°
    Comfort
    81
    0%
    0 in
  19. Sun
    8 AM
    60°
    Comfort
    84
    0%
    0 in
  20. Sun
    9 AM
    64°
    Comfort
    90
    0%
    0 in
  21. Sun
    10 AM
    67°
    Comfort
    93
    0%
    0 in
  22. Sun
    11 AM
    69°
    Comfort
    95
    0%
    0 in
  23. Sun
    12 PM
    71°
    Comfort
    96
    0%
    0 in
  24. Sun
    1 PM
    71°
    Comfort
    94
    0%
    0 in
  25. Sun
    2 PM
    71°
    Comfort
    94
    0%
    0 in
  26. Sun
    3 PM
    70°
    Comfort
    94
    0%
    0 in
  27. Sun
    4 PM
    70°
    Comfort
    92
    0%
    0 in
  28. Sun
    5 PM
    69°
    Comfort
    88
    0%
    0 in
  29. Sun
    6 PM
    68°
    Comfort
    87
    0%
    0 in
  30. Sun
    7 PM
    65°
    Comfort
    86
    0%
    0 in
  31. Sunset7:20 PM
  32. Sun
    8 PM
    64°
    Comfort
    89
    0%
    0 in
  33. Sun
    9 PM
    61°
    Comfort
    91
    0%
    0 in
  34. Sun
    10 PM
    61°
    Comfort
    90
    0%
    0 in
  35. Sun
    11 PM
    60°
    Comfort
    89
    0%
    0 in
  36. Mon
    12 AM
    60°
    Comfort
    89
    0%
    0 in
  37. Mon
    1 AM
    59°
    Comfort
    88
    0%
    0 in
  38. Mon
    2 AM
    57°
    Comfort
    86
    0%
    0 in
  39. Mon
    3 AM
    58°
    Comfort
    86
    0%
    0 in
  40. Mon
    4 AM
    58°
    Comfort
    86
    0%
    0 in
  41. Mon
    5 AM
    58°
    Comfort
    87
    0%
    0 in
  42. Mon
    6 AM
    58°
    Comfort
    85
    0%
    0 in
  43. Sunrise6:51 AM
  44. Mon
    7 AM
    57°
    Comfort
    84
    0%
    0 in
  45. Mon
    8 AM
    60°
    Comfort
    89
    0%
    0 in
  46. Mon
    9 AM
    67°
    Comfort
    96
    0%
    0 in
  47. Mon
    10 AM
    70°
    Comfort
    98
    0%
    0 in
  48. Mon
    11 AM
    73°
    Comfort
    100
    0%
    0 in
  49. Mon
    12 PM
    76°
    Comfort
    100
    0%
    0 in
  50. Mon
    1 PM
    72°
    Comfort
    100
    0%
    0 in
  51. Mon
    2 PM
    73°
    Comfort
    100
    0%
    0 in
  52. Mon
    3 PM
    74°
    Comfort
    100
    0%
    0 in

Current Conditions

Temperature
64°F
Feels like 57°F
Humidity
79%
Dew point 57°F
Wind
23 mph
NW • Gusts 30 mph
Cloud Cover
12%
bright
Precip Chance
0%

Comfort Breakdown

Less comfortableMore comfortable
Thermal77
Wind53
Sky Comfort100
Moisture100
Precipitation100

Weather Maps

About the weather maps for Tennessee Valley Beach

Each preview is centered on Tennessee Valley Beach, 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 Tennessee Valley Beach. Open a preview for the interactive map and its latest timestamp before making a weather-sensitive decision.

Nearby Temperature Comparison

Conditions at nearby San Francisco Bay Area destinations

Tip: Bay Area temps can vary 20-30°F within a short distance due to microclimates.

Climate Dashboard

Current conditions vs. NOAA normals and recent destination baseline

Today's High vs Normal
66°Fforecast
6° below normal
Normal: 72°F
Rainfall Year-to-Date
13.2"
32% below average
30-yr avg: 19.4"
Sunny Days
26last 28 days
1 fewer than baseline
Recent baseline: 27
Foggy Days
5last 28 days
vs 8 recent baseline
Clearer than usual
Avg Wind Speed
7.3 mphlast 28 days
1.6 mph calmer than baseline
Recent baseline: 8.9 mph
Comfort Score
8428-day avg
On par with typical
Recent baseline: 84
What the Tennessee Valley Beach climate comparisons mean

These cards compare recent conditions at Tennessee Valley Beach 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 Tennessee Valley Beach 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

81
Avg Comfort
64.3°
Avg High
49.6°
Avg Low
67%
Perfect Days
☀️ Avg Sunshine (recent)9.3h/day
🌫️ Avg Fog (recent)2.1h/day
💧 Avg Annual Rain27.1"
🌧️ Rainy Days/yr91 (25%)
🌫️ Foggy Days/yr (recent)104
✨ Perfect Days (80+)433

🌟 Best Months to Visit

1. May79
65° / 50.2° · ☀️ 12.6h
3 foggy days · 6 rainy days
2. August75
71° / 54.8° · ☀️ 11.7h
5 foggy days · 5 rainy days
3. June74
68.7° / 52.2° · ☀️ 12.9h
7 foggy days · 5 rainy days

⚠️ Challenging Months

1. December30
56.4° / 44.6° · ☀️ 6h
💧 6.2" · 12 rainy days · 16 foggy days
2. January33
56.2° / 44.2° · ☀️ 7.4h
💧 6.2" · 12 rainy days · 10 foggy days
3. February35
58.9° / 45.7° · ☀️ 6.5h
💧 5.6" · 11 rainy days · 11 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
August 20249076.1° / 54.6°11.6h2d0.06"26
September 20248974.5° / 53.7°10.6h9d0.06"27
October 20248976.5° / 54.5°9.4h3d0.25"29
November 20247759.7° / 46.4°7h7d5.01"18
December 20246856.1° / 45.6°6h12d7.85"12
January 20258056.5° / 42.6°7.7h10d0.91"21
February 20257157.4° / 43.9°6.2h10d6.51"14
March 20257758.3° / 45.3°9.1h6d3.04"17
April 20258562.7° / 47.2°11.1h8d0.5"20
May 20259170.8° / 50.4°12.8h1d0.1"29
June 20258969° / 51.2°12.9h7d0"25
July 20258466.6° / 53.2°11.5h18d0"20
August 20259175.3° / 55.4°11.7h7d0"30
September 20258773.4° / 57.5°10h9d0.42"19
October 20258568.1° / 53.3°8.3h8d1.95"22
November 20257460.6° / 49.9°7.2h15d3.28"12
December 20256353.4° / 44.5°6.1h20d6.4"7
January 20267356.3° / 44.9°7.2h10d3.5"14
February 20267259.4° / 46.3°6.8h11d4.67"15
March 20269372.9° / 50.5°10.8h2d0.61"28
April 20268263.8° / 49.4°10.5h5d3.88"21
May 20268564.7° / 51°11.7h3d0.56"7
Last updated: 5/10/2026

Climate Trends

Average Temperature by Month

71°F64°F57°F50°F42°FOct '24Nov '24Dec '24Jan '25Feb '25Mar '25Apr '25May '25Jun '25Jul '25Aug '25Sep '25Oct '25Nov '25Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jun '26Jul '26Aug '26
Average High
Average Low
About the Tennessee Valley Beach climate charts

The temperature chart compares average monthly highs and lows at Tennessee Valley Beach, 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 Tennessee Valley Beach. 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 Tennessee Valley Beach

This heatmap shows how average temperature at Tennessee Valley Beach 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 Tennessee Valley Beach

This heatmap shows when fog or low cloud is most likely at Tennessee Valley Beach. 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 Tennessee Valley Beach

This heatmap shows the typical hourly wind pattern at Tennessee Valley Beach 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 Tennessee Valley Beach

This heatmap shows average cloud cover at Tennessee Valley Beach 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 Tennessee Valley Beach

This heatmap shows the average solar radiation reaching Tennessee Valley Beach 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
37.8611, -122.5397
⛰️
Elevation
10 ft
🏷️
Type
Beach
🏷️
Tags
#foggy#cool#hiking#quiet
Map
Loading map...
Get Directions →

Frequently Asked Questions

Everything you need to know about weather and visiting Tennessee Valley Beach

What is the weather at Tennessee Valley Beach right now?

Current conditions at Tennessee Valley Beach are 64°F, feeling like 57°F, with 79% humidity, winds near 23 mph, 12% cloud cover, and a 0% chance of precipitation. Mild and windy with some clouds

What temperatures are typical at Tennessee Valley Beach?

The location-specific record for 1991-01-01 through 2020-12-31 shows an average daily high of 64°F and an average low of 50°F at Tennessee Valley Beach. These are averages across the year; the monthly climate table on this page shows the warmer and cooler seasons separately.

How much rain does Tennessee Valley Beach get?

The location-specific climate baseline estimates about 27.1 inches of precipitation and 91 days with measurable rain in a typical year at Tennessee Valley Beach. The monthly breakdown shows when that rain is most likely.

How often is Tennessee Valley Beach foggy?

Tennessee Valley Beach 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 Tennessee Valley Beach for comfortable weather?

Based on the destination's recorded comfort, temperature, sunshine, rain, and fog data, the strongest months are March 2026 (73°F/51°F average high/low and a 93 comfort score), May 2025 (71°F/50°F average high/low and a 91 comfort score), and August 2025 (75°F/55°F average high/low and a 91 comfort score). “Best” depends on the activity, so use the monthly table for the exact tradeoffs.

What kind of destination is Tennessee Valley Beach?

Tennessee Valley Beach is a beach at 10 feet. Secluded Marin beach via hike. Notable features include foggy, cool, hiking, and quiet.

💡 Local Tip: San Francisco Bay Area weather can change dramatically within short distances and throughout the day. Always check current conditions before visiting Tennessee Valley Beach.