Sunnyvale, CA weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Sunnyvale now
Loading the National Weather Service forecast…
Sunnyvale weather by the hour
Sunnyvale weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Sunnyvale.
This week in Sunnyvale
Sunrise, sunset and moon in Sunnyvale
What is the weather usually like in Sunnyvale?
Köppen climate classification, calculated from the 1991–2020 normals
- Septemberwarmest month · 77°F average high
- Decembercoldest month · 42°F average low
- 13.4 inprecipitation per year · 342 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Sunnyvale: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station MOFFETT FEDERAL AIRFIELD, CA US (USW00023244), adjusted for the elevation of Sunnyvale.
Sunnyvale weather month by month
Sunrise and sunset in Sunnyvale through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:19 AM | 5:15 PM | 9 h 55 min |
| February | 6:55 AM | 5:49 PM | 10 h 53 min |
| March | 7:17 AM | 7:16 PM | 11 h 59 min |
| April | 6:31 AM | 7:44 PM | 13 h 13 min |
| May | 5:57 AM | 8:11 PM | 14 h 14 min |
| June | 5:45 AM | 8:32 PM | 14 h 46 min |
| July | 5:58 AM | 8:30 PM | 14 h 32 min |
| August | 6:23 AM | 8:01 PM | 13 h 38 min |
| September | 6:49 AM | 7:17 PM | 12 h 28 min |
| October | 7:15 AM | 6:32 PM | 11 h 17 min |
| November | 6:46 AM | 4:59 PM | 10 h 12 min |
| December | 7:13 AM | 4:52 PM | 9 h 39 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Sunnyvale?
Sunnyvale has a warm-summer mediterranean climate. The warmest month is September, with an average high of 77°F (25°C), and the coldest is December, with average lows of 42°F (5°C).
It gets about 13.4 inches (342 mm) of precipitation a year. The wettest month is February and the driest is July.
The best time to visit Sunnyvale is June to September. At 125 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 Sunnyvale
Weather in towns near Sunnyvale
Questions about the weather in Sunnyvale
What is the hottest month in Sunnyvale?
September, with an average high of 77°F (25°C).
What is the coldest month in Sunnyvale?
December, with an average low of 42°F (5°C).
How much does it rain in Sunnyvale?
About 13.4 inches (342 mm) a year; the wettest month is February.
Does it snow in Sunnyvale?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Sunnyvale?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Sunnyvale have?
Warm-summer mediterranean (Köppen Csb).
What is the weather like in Sunnyvale in November?
Highs average 65°F and lows 46°F, with about 1.4 inches of precipitation.
What time is sunrise in Sunnyvale?
Around 6:46 AM in mid-November, and sunset around 4:59 PM. Today’s exact times are shown above.
Where does this Sunnyvale weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Sunnyvale.
Last updated: