Best year time to visit Kosu

General weather information about Kosu

Average annual temperature is 14.7 °C

Absolute maximum temperature: 33.9 °C

Absolute minimum temperature: -10.3 °C

Number of sunny days: 166 days

Number of rainy days: 186 days

Number of snow days: 13 days

Look at detailed online map of Kosu

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

Kosu air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.213.121.724.526.629.531.233.930.823.324.918.8
Average daytime temperature (°C)6.58.315.518.021.425.728.130.327.321.213.98.5
Average temperature (°C)2.63.59.713.317.521.825.426.623.516.410.05.1
Average night temperature (°C)-1.40.05.69.414.418.923.423.520.512.36.11.5
Absolute minimum temperature (°C)-10.3-3.5-2.83.98.715.420.919.516.28.6-1.3-8.6

Kosu 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)7.07.28.47.57.18.15.810.38.38.56.95.5
Precipitation (mm)434333148253224382189129289459
Sunny days171922141412189191813
Rainy days989161718302321121112
Snow days510000000016

Kosu - weather forecast by months

Kosu weather in januaryKosu weather in februaryKosu weather in marchKosu weather in aprilKosu weather in mayKosu weather in juneKosu weather in julyKosu weather in augustKosu weather in septemberKosu weather in octoberKosu weather in novemberKosu weather in december

Best time to visit Kosu:

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

  • August — 10.3(h)

The largest precipitation sum in Kosu is at

  • May — 253(mm)
  • June — 224(mm)
  • July — 382(mm)
  • August — 189(mm)

    • Weather forecast in the closest to Kosu admin centers

    Weather forecast in the closest towns to Kosu

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    Frequently asked questions

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