Best year time to visit Port Costa

General weather information about Port Costa

Average annual temperature is 14.3 °C

Absolute maximum temperature: 37.0 °C

Absolute minimum temperature: 2.0 °C

Number of sunny days: 264 days

Number of rainy days: 101 days

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

Port Costa air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.418.717.429.529.329.535.637.030.834.425.218.2
Average daytime temperature (°C)13.713.413.419.319.922.129.129.725.425.818.815.7
Average temperature (°C)9.68.39.412.814.516.219.320.418.518.113.211.0
Average night temperature (°C)6.84.76.58.411.312.613.315.114.413.09.17.8
Absolute minimum temperature (°C)2.42.02.63.68.810.812.013.212.36.23.92.9

Port Costa 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)9.910.812.013.214.214.814.513.612.411.210.19.6
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)5.77.57.811.311.512.812.912.110.59.38.05.9
Precipitation (mm)284762405231002974120
Sunny days12159272528303023262118
Rainy days1913223621175913
Snow days000000000000

Port Costa - weather forecast by months

Port Costa weather in januaryPort Costa weather in februaryPort Costa weather in marchPort Costa weather in aprilPort Costa weather in mayPort Costa weather in junePort Costa weather in julyPort Costa weather in augustPort Costa weather in septemberPort Costa weather in octoberPort Costa weather in novemberPort Costa weather in december

Best time to visit Port Costa:

The best time to visit Port Costa during the most sunny months:

  • June — 12.8(h)
  • July — 12.9(h)
  • August — 12.1(h)

The largest precipitation sum in Port Costa is at

  • January — 284(mm)
  • March — 240(mm)
  • December — 120(mm)

    • Weather forecast in the closest to Port Costa admin centers

    Weather forecast in the closest towns to Port Costa

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    Frequently asked questions

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