Tennessee Valley Beach Weather

Beach • San Francisco Bay Area

Secluded Marin beach via hike

54°
🙂
Comfort Score
76(B)
Great
Weather updated October 1, 2026 at 3:16 AM 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 54°F, feeling like 54°F, with 100% humidity, winds near 5 mph, 100% cloud cover, and a 0% chance of precipitation. Cool and humid and overcast.

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
    Oct 1
    63°53°
    Comfort
    84
    1%
    Precip 0 in
  2. Fri
    Oct 2
    65°52°
    Comfort
    84
    1%
    Precip 0 in
  3. Sat
    Oct 3
    93°64°
    Comfort
    65
    1%
    Precip 0 in
  4. Sun
    Oct 4
    89°68°
    Comfort
    76
    0%
    Precip 0 in
  5. Mon
    Oct 5
    91°67°
    Comfort
    69
    0%
    Precip 0 in
  6. Tue
    Oct 6
    93°66°
    Comfort
    65
    0%
    Precip 0 in
  7. Wed
    Oct 7
    95°69°
    Comfort
    62
    0%
    Precip 0 in
  8. Best day
    Thu
    Oct 8
    79°58°
    Comfort
    95
    1%
    Precip 0 in
  9. Fri
    Oct 9
    75°56°
    Comfort
    88
    0%
    Precip 0 in
  10. Sat
    Oct 10
    84°55°
    Comfort
    86
    1%
    Precip 0 in

Hour by hour

Hourly Forecast

Drag or swipe to browse
  1. Today
    Now
    54°
    Comfort
    86
    1%
    0 in
  2. Today
    4 AM
    54°
    Comfort
    84
    0%
    0 in
  3. Today
    5 AM
    53°
    Comfort
    83
    0%
    0 in
  4. Today
    6 AM
    53°
    Comfort
    84
    1%
    0 in
  5. Today
    7 AM
    53°
    Comfort
    80
    1%
    0 in
  6. Sunrise7:05 AM
  7. Today
    8 AM
    54°
    Comfort
    84
    0%
    0 in
  8. Today
    9 AM
    55°
    Comfort
    82
    0%
    0 in
  9. Today
    10 AM
    58°
    Comfort
    78
    0%
    0 in
  10. Today
    11 AM
    61°
    Comfort
    81
    0%
    0 in
  11. Today
    12 PM
    62°
    Comfort
    84
    0%
    0 in
  12. Today
    1 PM
    63°
    Comfort
    84
    0%
    0 in
  13. Today
    2 PM
    62°
    Comfort
    83
    0%
    0 in
  14. Today
    3 PM
    60°
    Comfort
    80
    0%
    0 in
  15. Today
    4 PM
    60°
    Comfort
    88
    0%
    0 in
  16. Today
    5 PM
    57°
    Comfort
    85
    1%
    0 in
  17. Today
    6 PM
    56°
    Comfort
    82
    1%
    0 in
  18. Sunset6:52 PM
  19. Today
    7 PM
    55°
    Comfort
    83
    1%
    0 in
  20. Today
    8 PM
    54°
    Comfort
    83
    1%
    0 in
  21. Today
    9 PM
    54°
    Comfort
    83
    1%
    0 in
  22. Today
    10 PM
    54°
    Comfort
    83
    0%
    0 in
  23. Today
    11 PM
    54°
    Comfort
    83
    0%
    0 in
  24. Fri
    12 AM
    54°
    Comfort
    85
    0%
    0 in
  25. Fri
    1 AM
    54°
    Comfort
    84
    1%
    0 in
  26. Fri
    2 AM
    53°
    Comfort
    84
    1%
    0 in
  27. Fri
    3 AM
    53°
    Comfort
    78
    1%
    0 in
  28. Fri
    4 AM
    53°
    Comfort
    82
    0%
    0 in
  29. Fri
    5 AM
    53°
    Comfort
    79
    0%
    0 in
  30. Fri
    6 AM
    52°
    Comfort
    79
    0%
    0 in
  31. Fri
    7 AM
    52°
    Comfort
    76
    0%
    0 in
  32. Sunrise7:06 AM
  33. Fri
    8 AM
    53°
    Comfort
    78
    0%
    0 in
  34. Fri
    9 AM
    58°
    Comfort
    84
    0%
    0 in
  35. Fri
    10 AM
    61°
    Comfort
    90
    0%
    0 in
  36. Fri
    11 AM
    63°
    Comfort
    91
    0%
    0 in
  37. Fri
    12 PM
    65°
    Comfort
    95
    0%
    0 in
  38. Fri
    1 PM
    61°
    Comfort
    86
    0%
    0 in
  39. Fri
    2 PM
    63°
    Comfort
    90
    0%
    0 in
  40. Fri
    3 PM
    64°
    Comfort
    92
    0%
    0 in
  41. Fri
    4 PM
    61°
    Comfort
    88
    0%
    0 in
  42. Fri
    5 PM
    60°
    Comfort
    85
    0%
    0 in
  43. Fri
    6 PM
    57°
    Comfort
    81
    0%
    0 in
  44. Sunset6:51 PM
  45. Fri
    7 PM
    57°
    Comfort
    83
    0%
    0 in
  46. Fri
    8 PM
    57°
    Comfort
    83
    0%
    0 in
  47. Fri
    9 PM
    59°
    Comfort
    85
    0%
    0 in
  48. Fri
    10 PM
    61°
    Comfort
    91
    0%
    0 in
  49. Fri
    11 PM
    64°
    Comfort
    94
    0%
    0 in
  50. Sat
    12 AM
    66°
    Comfort
    93
    1%
    0 in
  51. Sat
    1 AM
    64°
    Comfort
    94
    1%
    0 in
  52. Sat
    2 AM
    64°
    Comfort
    94
    1%
    0 in

Current Conditions

Temperature
54°F
Feels like 54°F
Humidity
100%
Dew point 54°F
Wind
5 mph
NW • Gusts 7 mph
Cloud Cover
100%
Low clouds
Precip Chance
0%

Comfort Breakdown

Less comfortableMore comfortable
Thermal71
Wind100
Night Sky20
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.

Climate Dashboard

Current conditions vs. NOAA normals and recent destination baseline

Today's High vs Normal
63°Fforecast
6° below normal
Normal: 69°F
Rainfall Year-to-Date
17.2"
12% below average
30-yr avg: 19.5"
Sunny Days
13last 28 days
9 fewer than baseline
Recent baseline: 22
Foggy Days
24last 28 days
vs 18 recent baseline
Foggier than usual
Avg Wind Speed
11.6 mphlast 28 days
Typical conditions
Recent baseline: 11.3 mph
Comfort Score
7128-day avg
8 pts below typical
Recent baseline: 79
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

75
Avg Comfort
64.3°
Avg High
49.6°
Avg Low
44%
Perfect Days
☀️ Avg Sunshine (recent)7.7h/day
🌫️ Avg Fog (recent)2.8h/day
💧 Avg Annual Rain27.1"
🌧️ Rainy Days/yr91 (25%)
🌫️ Foggy Days/yr (recent)152
✨ Perfect Days (80+)298

🌟 Best Months to Visit

1. October62
69° / 52.3° · ☀️ 7.4h
6 foggy days · 6 rainy days
2. May61
65° / 50.2° · ☀️ 10.5h
13 foggy days · 6 rainy days
3. June58
68.7° / 52.2° · ☀️ 8.6h
21 foggy days · 5 rainy days

⚠️ Challenging Months

1. December27
56.4° / 44.6° · ☀️ 4.7h
💧 6.2" · 12 rainy days · 12 foggy days
2. February40
58.9° / 45.7° · ☀️ 6.3h
💧 5.6" · 11 rainy days · 7 foggy days
3. January41
56.2° / 44.2° · ☀️ 6.8h
💧 6.2" · 12 rainy days · 5 foggy days

Monthly Breakdown

MonthComfortHigh/Low☀️ Sun🌫️ Fog💧 RainPerfect
October 20248156.9° / 47.6°9h0d0.23"1
November 20247458.2° / 48.3°6.2h6d6.39"15
December 20246656.3° / 47.7°4.6h12d8.81"12
January 20258056° / 45°7h5d0.26"18
February 20256956.6° / 45.4°6.4h9d9.43"13
March 20257355.6° / 44.8°7.5h7d2.66"12
April 20257556.5° / 46.2°8.4h14d0.36"10
May 20258262.8° / 48.4°11h11d0.16"18
June 20257359.3° / 48.6°8.6h23d0"9
July 20256958.1° / 51.1°7h28d0"3
August 20257865.4° / 53.7°8.8h20d0"16
September 20257965.9° / 55.9°7.7h16d0.1"14
October 20258164.2° / 53°7.3h6d0.88"20
November 20257158.5° / 50.2°6.1h14d3.9"8
December 20256052.3° / 45.1°4.9h12d5.92"4
January 20267557.8° / 48.2°6.5h5d5.65"18
February 20267258.7° / 48.5°6.1h4d6.67"13
March 20269068.4° / 51.6°9.5h4d0.05"26
April 20267860° / 48.9°8.9h8d4.07"16
May 20267961° / 49.8°10.1h15d0.72"15
June 20267762.7° / 51.5°8.5h18d0.01"13
July 20267964.2° / 52.6°9.8h16d0"16
August 20267261.9° / 53°7.2h27d0"8
Last updated: 9/2/2026

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 54°F, feeling like 54°F, with 100% humidity, winds near 5 mph, 100% cloud cover, and a 0% chance of precipitation. Cool and humid and overcast

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 (68°F/52°F average high/low and a 90 comfort score), May 2025 (63°F/48°F average high/low and a 82 comfort score), and October 2024 (57°F/48°F average high/low and a 81 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.