Best year time to visit Eureka

General weather information about Eureka

Average annual temperature is 15.0 °C

Absolute maximum temperature: 39.1 °C

Absolute minimum temperature: -11.1 °C

Number of sunny days: 216 days

Number of rainy days: 147 days

Number of snow days: 2 days

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

Eureka air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.319.825.730.932.438.436.739.135.232.523.316.5
Average daytime temperature (°C)8.510.813.822.426.531.632.933.130.021.813.710.2
Average temperature (°C)2.43.67.314.220.125.226.927.223.416.27.95.2
Average night temperature (°C)-1.5-1.82.27.614.419.321.821.817.811.43.21.7
Absolute minimum temperature (°C)-11.1-10.3-7.3-0.15.714.217.016.312.7-2.7-7.8-3.1

Eureka 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)6.78.17.910.410.612.511.812.210.37.97.35.4
Precipitation (mm)42683757404611963391004881
Sunny days211616201114152420192218
Rainy days1012151020161671012712
Snow days000000000011

Eureka - weather forecast by months

Eureka weather in januaryEureka weather in februaryEureka weather in marchEureka weather in aprilEureka weather in mayEureka weather in juneEureka weather in julyEureka weather in augustEureka weather in septemberEureka weather in octoberEureka weather in novemberEureka weather in december

Best time to visit Eureka:

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

  • June — 12.5(h)
  • July — 11.8(h)
  • August — 12.2(h)

The largest precipitation sum in Eureka is at

  • July — 119(mm)
  • October — 100(mm)
  • December — 81(mm)

    • Weather forecast in the closest to Eureka admin centers

    Weather forecast in the closest towns to Eureka

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    Frequently asked questions

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