Best year time to visit Osan-ni

General weather information about Osan-ni

Average annual temperature is 12.9 °C

Absolute maximum temperature: 35.4 °C

Absolute minimum temperature: -14.3 °C

Number of sunny days: 176 days

Number of rainy days: 172 days

Number of snow days: 17 days

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* Weather data for Osan-ni South Korea is based on climate observations for 2026 year

Osan-ni air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.610.623.927.329.135.433.935.030.322.722.617.1
Average daytime temperature (°C)2.95.714.118.323.727.229.230.026.219.510.95.3
Average temperature (°C)-1.50.87.712.417.921.925.325.822.114.46.71.2
Average night temperature (°C)-5.6-2.82.97.713.117.922.522.418.79.72.5-2.6
Absolute minimum temperature (°C)-14.3-5.8-4.01.55.714.220.018.712.73.9-5.1-13.7

Osan-ni 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)10.010.812.013.114.114.614.413.512.411.210.29.7
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)7.38.49.47.98.69.87.78.87.48.46.74.6
Precipitation (mm)3311974113179402222192266479
Sunny days192623171810658181313
Rainy days62813132025262213168
Snow days6000000000110

Osan-ni - weather forecast by months

Osan-ni weather in januaryOsan-ni weather in februaryOsan-ni weather in marchOsan-ni weather in aprilOsan-ni weather in mayOsan-ni weather in juneOsan-ni weather in julyOsan-ni weather in augustOsan-ni weather in septemberOsan-ni weather in octoberOsan-ni weather in novemberOsan-ni weather in december

Best time to visit Osan-ni:

The largest precipitation sum in Osan-ni is at

  • June — 179(mm)
  • July — 402(mm)
  • August — 222(mm)
  • September — 192(mm)

    • Weather forecast in the closest to Osan-ni admin centers

    Weather forecast in the closest towns to Osan-ni

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    Frequently asked questions

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