Best year time to visit Sumi

General weather information about Sumi

Average annual temperature is 12.5 °C

Absolute maximum temperature: 33.8 °C

Absolute minimum temperature: -23.6 °C

Number of sunny days: 179 days

Number of rainy days: 169 days

Number of snow days: 17 days

Look at detailed online map of Sumi

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

Sumi air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.810.923.025.830.733.833.833.630.822.123.215.8
Average daytime temperature (°C)1.26.615.018.123.826.929.329.826.218.69.53.9
Average temperature (°C)-3.60.78.212.218.022.025.425.821.913.64.7-0.2
Average night temperature (°C)-8.5-3.42.37.012.817.722.322.318.49.20.4-3.6
Absolute minimum temperature (°C)-23.6-7.1-4.5-0.34.113.218.917.112.23.7-8.2-14.9

Sumi monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.012.011.010.09.0
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)7.18.39.27.48.99.47.48.27.37.97.05.8
Precipitation (mm)571191071652484383611893812887
Sunny days18232315219468191518
Rainy days52815102127252212139
Snow days830000000024

Sumi - weather forecast by months

Sumi weather in januarySumi weather in februarySumi weather in marchSumi weather in aprilSumi weather in maySumi weather in juneSumi weather in julySumi weather in augustSumi weather in septemberSumi weather in octoberSumi weather in novemberSumi weather in december

Best time to visit Sumi:

The largest precipitation sum in Sumi is at

  • June — 248(mm)
  • July — 438(mm)
  • August — 361(mm)

    • Weather forecast in the closest to Sumi admin centers

    Weather forecast in the closest towns to Sumi

    Explore Sumi

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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