Best year time to visit Iliamna

General weather information about Iliamna

Average annual temperature is 1.9 °C

Absolute maximum temperature: 24.4 °C

Absolute minimum temperature: -28.2 °C

Number of sunny days: 118 days

Number of rainy days: 182 days

Number of snow days: 65 days

Look at detailed online map of Iliamna

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

Iliamna air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)3.52.13.58.215.221.622.824.415.211.28.42.5
Average daytime temperature (°C)0.1-3.0-1.51.09.013.617.117.111.16.30.3-5.3
Average temperature (°C)-3.1-7.0-5.4-3.35.610.313.313.77.82.7-2.4-9.9
Average night temperature (°C)-5.3-10.7-8.6-6.32.97.810.410.95.20.2-4.8-13.3
Absolute minimum temperature (°C)-17.9-23.2-18.9-19.5-3.94.16.67.7-1.7-6.6-15.0-28.2

Iliamna monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)7.010.013.015.018.018.018.016.014.011.08.06.0
Daylight mean duration (h)6.99.211.814.617.118.617.915.512.910.27.66.1
Daylight minimum duration (h)6.08.010.013.015.018.016.014.011.08.06.05.0
Sunshine mean duration (h)1.33.87.010.25.75.78.76.76.76.62.41.5
Precipitation (mm)747153377886162177119249979
Sunny days67161632989211011
Rainy days15427282822232110157
Snow days1017137000000513

Iliamna - weather forecast by months

Iliamna weather in januaryIliamna weather in februaryIliamna weather in marchIliamna weather in aprilIliamna weather in mayIliamna weather in juneIliamna weather in julyIliamna weather in augustIliamna weather in septemberIliamna weather in octoberIliamna weather in novemberIliamna weather in december

Best time to visit Iliamna:

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

  • March — 7.0(h)
  • April — 10.2(h)
  • July — 8.7(h)

Months with the longest average daylight duration in Iliamna:

  • May — 17.1(h)
  • June — 18.6(h)
  • July — 17.9(h)

The largest precipitation sum in Iliamna is at

  • July — 162(mm)
  • August — 177(mm)
  • September — 119(mm)

    • Weather forecast in the closest to Iliamna admin centers

    Weather forecast in the closest towns to Iliamna

    Explore Iliamna

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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