South KoreaCountries South Korea Gyeonggi-do Osan
South KoreaSouth Korea Gyeonggi-do Osan
Osan
Weather averages
ClimateForecastAprilMay >>

Climate in Osan (Gyeonggi-do), South Korea

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly hours of sunshine

The average monthly total hours of sunshine over the year
* Data from: Cheonan, South Korea (38 KM, 23 Miles).

Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year
* Data from: Cheonan, South Korea (38 KM, 23 Miles).

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average humidity

The mean monthly relative humidity over the year
* Data from: Cheonan, South Korea (38 KM, 23 Miles).

Weather Forecasts for Osan

Sat   Apr 27
25°C | 10°C
W 14 km/h
almost clear and no rain

almost clear and no rain

hourly forecast
Sun   Apr 28
29°C | 10°C
W 11 km/h
broken clouds and no rain

broken clouds and no rain

hourly forecast
Mon   Apr 29
24°C | 15°C
E 14 km/h
0.2 mm
broken clouds and chance of slight rain

broken clouds and chance of slight rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Osan in South Korea

During the months of May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • Which months have the greatest rainfall in Osan?
    Most rainfall (rainy season) is seen in July and August.
  • Which is the warmest month in Osan?
    August has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Osan?
    The coldest month is January with an average maximum temperature of 4°C.
  • Which is the wettest month in Osan?
    July tops the wettest month list with 281 mm of rainfall.
  • Which is the driest month in Osan?
    January is the driest month with 24 mm of precipitation.
  • Which is the sunniest month in Osan?
    May is the sunniest month with an average of 248 hours of sunshine.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     

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