Weather in San Diego in August

General weather information about San Diego

Average annual temperature is 25.8 °C

Absolute maximum temperature: 37.8 °C

Absolute minimum temperature: 14.3 °C

Number of sunny days: 135 days

Number of rainy days: 230 days

Look at detailed online map of San Diego

* Weather data for San Diego Mexico is based on climate observations for 2026 year

San Diego air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)31.736.137.836.236.437.334.535.233.535.032.831.7
Average daytime temperature (°C)27.327.330.731.132.433.431.631.832.030.427.525.7
Average temperature (°C)23.022.725.526.727.928.927.127.127.526.424.022.2
Average night temperature (°C)19.819.421.923.424.325.523.623.523.523.221.219.5
Absolute minimum temperature (°C)14.315.718.119.919.422.822.121.622.420.517.914.5

San Diego monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)11.011.012.012.013.013.013.012.012.011.011.011.0
Daylight mean duration (h)11.111.512.012.613.013.213.112.812.211.711.311.0
Daylight minimum duration (h)11.011.011.012.012.013.012.012.011.011.011.010.0
Sunshine mean duration (h)9.29.510.211.011.411.510.410.810.99.68.27.7
Precipitation (mm)203317453813033139313317037106
Sunny days16172118191103161211
Rainy days151110121219312829251820
Snow days000000000000

Best time to visit San Diego:

The largest precipitation sum in San Diego is at

  • July — 331(mm)
  • August — 393(mm)
  • October — 170(mm)
  • Frequently asked questions

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