Best year time to visit Sumun

General weather information about Sumun

Average annual temperature is 15.2 °C

Absolute maximum temperature: 31.9 °C

Absolute minimum temperature: -10.6 °C

Number of sunny days: 205 days

Number of rainy days: 158 days

Number of snow days: 2 days

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* Weather data for Sumun South Korea is based on climate observations for 2026 year

Sumun air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)17.013.523.925.726.731.531.531.929.624.521.916.6
Average daytime temperature (°C)6.99.817.018.721.926.626.829.226.821.013.88.6
Average temperature (°C)2.24.611.014.018.022.625.027.124.317.410.45.5
Average night temperature (°C)-2.00.46.310.014.819.523.525.222.114.36.92.3
Absolute minimum temperature (°C)-10.6-3.7-2.34.48.716.621.322.116.710.5-0.6-5.1

Sumun monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.110.912.013.114.014.414.213.412.411.310.49.9
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)7.87.28.67.77.98.46.710.28.48.77.96.7
Precipitation (mm)395044140233236348296210166565
Sunny days25192415121351013252420
Rainy days697151917262117669
Snow days000000000002

Sumun - weather forecast by months

Sumun weather in januarySumun weather in februarySumun weather in marchSumun weather in aprilSumun weather in maySumun weather in juneSumun weather in julySumun weather in augustSumun weather in septemberSumun weather in octoberSumun weather in novemberSumun weather in december

Best time to visit Sumun:

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

  • August — 10.2(h)

The largest precipitation sum in Sumun is at

  • May — 233(mm)
  • June — 236(mm)
  • July — 348(mm)
  • August — 296(mm)
  • September — 210(mm)

    • Weather forecast in the closest to Sumun admin centers

    Weather forecast in the closest towns to Sumun

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    Frequently asked questions

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