Best year time to visit Sunnyvale

General weather information about Sunnyvale

Average annual temperature is 12.3 °C

Absolute maximum temperature: 32.6 °C

Absolute minimum temperature: -7.8 °C

Number of sunny days: 176 days

Number of rainy days: 188 days

Number of snow days: 1 day

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* Weather data for Sunnyvale United States is based on climate observations for 2026 year

Sunnyvale air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)17.322.725.024.525.729.531.032.630.325.023.516.4
Average daytime temperature (°C)9.512.713.717.819.723.528.026.723.318.812.69.3
Average temperature (°C)4.27.27.611.614.417.721.821.117.812.87.14.1
Average night temperature (°C)0.62.62.55.99.812.516.316.413.38.02.60.1
Absolute minimum temperature (°C)-6.2-7.5-7.3-0.41.38.013.212.79.41.1-6.8-7.8

Sunnyvale monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.09.0
Daylight mean duration (h)10.010.912.013.114.114.514.313.512.411.310.39.8
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.09.09.0
Sunshine mean duration (h)5.96.68.29.210.610.912.310.711.09.57.86.5
Precipitation (mm)135909014981129120107821346207
Sunny days1514181412116814232318
Rainy days1514131619192523168713
Snow days100000000000

Sunnyvale - weather forecast by months

Sunnyvale weather in januarySunnyvale weather in februarySunnyvale weather in marchSunnyvale weather in aprilSunnyvale weather in maySunnyvale weather in juneSunnyvale weather in julySunnyvale weather in augustSunnyvale weather in septemberSunnyvale weather in octoberSunnyvale weather in novemberSunnyvale weather in december

Best time to visit Sunnyvale:

The best time to visit Sunnyvale during the most sunny months:

  • July — 12.3(h)

The largest precipitation sum in Sunnyvale is at

  • January — 135(mm)
  • April — 149(mm)
  • December — 207(mm)

    • Weather forecast in the closest to Sunnyvale admin centers

    Weather forecast in the closest towns to Sunnyvale

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    Frequently asked questions

    When is the best time to visit Sunnyvale?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Sunnyvale.
    What is the weather like in Sunnyvale?
    See average temperature, rainfall and daylight hours for Sunnyvale by month in the table above.
    How many sunny days does Sunnyvale have?
    The monthly weather statistics above show sunshine and rainfall patterns for Sunnyvale throughout the year.