Best year time to visit Alameda County

General weather information about Alameda County

Average annual temperature is 13.5 °C

Absolute maximum temperature: 35.1 °C

Absolute minimum temperature: -0.3 °C

Number of sunny days: 234 days

Number of rainy days: 131 days

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

Alameda County air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.518.520.829.727.529.834.533.829.135.126.220.0
Average daytime temperature (°C)13.913.913.817.719.021.826.327.624.025.119.516.2
Average temperature (°C)9.27.89.011.613.415.418.119.517.417.012.410.5
Average night temperature (°C)5.83.65.57.210.111.612.414.213.011.37.16.6
Absolute minimum temperature (°C)-0.30.50.01.46.79.710.411.89.84.41.21.1

Alameda County monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.910.812.013.214.214.714.513.612.411.210.29.6
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)5.87.57.710.69.912.012.211.610.09.58.16.2
Precipitation (mm)27211026464601361053117
Sunny days11148201728272424242116
Rainy days201423101424767915
Snow days000000000000

Alameda County - weather forecast by months

Alameda County weather in januaryAlameda County weather in februaryAlameda County weather in marchAlameda County weather in aprilAlameda County weather in mayAlameda County weather in juneAlameda County weather in julyAlameda County weather in augustAlameda County weather in septemberAlameda County weather in octoberAlameda County weather in novemberAlameda County weather in december

Best time to visit Alameda County:

The best time to visit Alameda County during the most sunny months:

  • June — 12.0(h)
  • July — 12.2(h)

The largest precipitation sum in Alameda County is at

  • January — 272(mm)
  • February — 110(mm)
  • March — 264(mm)
  • December — 117(mm)

    • Weather forecast in the closest to Alameda County admin centers

    Weather forecast in the closest towns to Alameda County

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    Frequently asked questions

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