Foster City, CA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Foster City now
Loading the National Weather Service forecast…
Foster City weather by the hour
Foster City weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Foster City.
This week in Foster City
Sunrise, sunset and moon in Foster City
What is the weather usually like in Foster City?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 81°F average high
- Decembercoldest month · 40°F average low
- 19.0 inprecipitation per year · 483 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Foster City: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station REDWOOD CITY, CA US (USC00047339), adjusted for the elevation of Foster City.
Foster City weather month by month
Sunrise and sunset in Foster City through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:20 AM | 5:16 PM | 9 h 55 min |
| February | 6:56 AM | 5:49 PM | 10 h 53 min |
| March | 7:18 AM | 7:17 PM | 11 h 59 min |
| April | 6:32 AM | 7:45 PM | 13 h 13 min |
| May | 5:57 AM | 8:12 PM | 14 h 15 min |
| June | 5:45 AM | 8:33 PM | 14 h 47 min |
| July | 5:58 AM | 8:31 PM | 14 h 32 min |
| August | 6:23 AM | 8:02 PM | 13 h 39 min |
| September | 6:49 AM | 7:18 PM | 12 h 28 min |
| October | 7:16 AM | 6:33 PM | 11 h 16 min |
| November | 6:47 AM | 4:59 PM | 10 h 11 min |
| December | 7:15 AM | 4:53 PM | 9 h 38 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Foster City?
Foster City has a warm-summer mediterranean climate. The warmest month is July, with an average high of 81°F (27°C), and the coldest is December, with average lows of 40°F (5°C).
It gets about 19.0 inches (483 mm) of precipitation a year. The wettest month is December and the driest is July.
The best time to visit Foster City is June to September. At 7 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 Foster City
Weather in towns near Foster City
Questions about the weather in Foster City
What is the hottest month in Foster City?
July, with an average high of 81°F (27°C).
What is the coldest month in Foster City?
December, with an average low of 40°F (5°C).
How much does it rain in Foster City?
About 19.0 inches (483 mm) a year; the wettest month is December.
Does it snow in Foster City?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Foster City?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Foster City have?
Warm-summer mediterranean (Köppen Csb).
What is the weather like in Foster City in November?
Highs average 65°F and lows 44°F, with about 1.9 inches of precipitation.
What time is sunrise in Foster City?
Around 6:47 AM in mid-November, and sunset around 4:59 PM. Today’s exact times are shown above.
Where does this Foster City weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Foster City.
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