Weather in Helena in August

General weather information about Helena

Average annual temperature is 10.0 °C

Absolute maximum temperature: 32.4 °C

Absolute minimum temperature: -9.9 °C

Number of sunny days: 128 days

Number of rainy days: 215 days

Number of snow days: 22 days

Look at detailed online map of Helena

* Weather data for Helena Germany is based on climate observations for 2026 year

Helena air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)14.212.916.319.523.631.532.430.727.724.913.89.0
Average daytime temperature (°C)4.35.09.310.517.423.324.022.822.015.97.04.6
Average temperature (°C)2.11.55.26.612.918.319.218.417.011.54.22.3
Average night temperature (°C)-0.2-1.41.32.88.313.014.314.312.27.71.40.1
Absolute minimum temperature (°C)-6.9-7.3-4.6-3.64.69.49.58.86.3-0.2-7.7-9.9

Helena monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.710.111.913.715.316.215.814.412.610.89.28.3
Daylight minimum duration (h)8.09.010.012.014.015.015.013.011.09.08.08.0
Sunshine mean duration (h)2.25.36.07.010.713.312.09.110.06.63.92.6
Precipitation (mm)409480675832741823878140121
Sunny days9111081418117191614
Rainy days151417211712202411152623
Snow days734100000034

Helena - weather forecast by months

Helena weather in januaryHelena weather in februaryHelena weather in marchHelena weather in aprilHelena weather in mayHelena weather in juneHelena weather in julyHelena weather in augustHelena weather in septemberHelena weather in octoberHelena weather in novemberHelena weather in december

Best time to visit Helena:

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

  • May — 10.7(h)
  • June — 13.3(h)
  • July — 12.0(h)
  • September — 10.0(h)

Months with the longest average daylight duration in Helena:

  • June — 16.2(h)
  • July — 15.8(h)

The largest precipitation sum in Helena is at

  • August — 182(mm)
  • November — 140(mm)
  • December — 121(mm)

    • Weather forecast in the closest to Helena admin centers

    Weather forecast in the closest towns to Helena

    Explore Helena

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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