Mill Valley, CA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Mill Valley now
Loading the National Weather Service forecast…
Mill Valley weather by the hour
Mill Valley weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Mill Valley.
This week in Mill Valley
Sunrise, sunset and moon in Mill Valley
What is the weather usually like in Mill Valley?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 83°F average high
- Decembercoldest month · 42°F average low
- 44.4 inprecipitation per year · 1,128 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Mill Valley: June–July and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station KENTFIELD, CA US (USC00044500), adjusted for the elevation of Mill Valley.
Mill Valley weather month by month
Sunrise and sunset in Mill Valley through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:23 AM | 5:16 PM | 9 h 53 min |
| February | 6:58 AM | 5:50 PM | 10 h 52 min |
| March | 7:19 AM | 7:18 PM | 11 h 59 min |
| April | 6:32 AM | 7:47 PM | 13 h 14 min |
| May | 5:58 AM | 8:14 PM | 14 h 16 min |
| June | 5:45 AM | 8:35 PM | 14 h 49 min |
| July | 5:58 AM | 8:33 PM | 14 h 34 min |
| August | 6:24 AM | 8:04 PM | 13 h 40 min |
| September | 6:51 AM | 7:19 PM | 12 h 28 min |
| October | 7:17 AM | 6:34 PM | 11 h 16 min |
| November | 6:49 AM | 4:59 PM | 10 h 10 min |
| December | 7:17 AM | 4:53 PM | 9 h 36 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Mill Valley?
Mill Valley has a warm-summer mediterranean climate. The warmest month is August, with an average high of 83°F (29°C), and the coldest is December, with average lows of 42°F (6°C).
It gets about 44.4 inches (1,128 mm) of precipitation a year. The wettest month is December and the driest is July.
The best time to visit Mill Valley is June–July and September–October. At 79 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Mill Valley
Weather in towns near Mill Valley
Questions about the weather in Mill Valley
What is the hottest month in Mill Valley?
August, with an average high of 83°F (29°C).
What is the coldest month in Mill Valley?
December, with an average low of 42°F (6°C).
How much does it rain in Mill Valley?
About 44.4 inches (1,128 mm) a year; the wettest month is December.
Does it snow in Mill Valley?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Mill Valley?
June–July and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does Mill Valley have?
Warm-summer mediterranean (Köppen Csb).
What is the weather like in Mill Valley in November?
Highs average 64°F and lows 46°F, with about 4.6 inches of precipitation.
What time is sunrise in Mill Valley?
Around 6:49 AM in mid-November, and sunset around 4:59 PM. Today’s exact times are shown above.
Where does this Mill Valley weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Mill Valley.
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