ClimateForecastMayJune >>

Average temperature in Osan

The mean minimum and maximum temperatures over the year in Osan (Gyeonggi-do), South Korea.

  • The months of May, June, July, September and October have nice average temperatures.
  • On average, the warmest month(s) are June, July and August.
  • On average, the warmest month is August with 31°C.
  • On average, the coolest month is January with 4°C.
  • The average annual maximum temperature is 19°C.
  • The average annual minimum temperature is 8°C.

Forecast for Osan

Tue   May 07
15°C | 11°C
NE 14 km/h
7.7 mm
overcast and heavy rain

overcast and heavy rain

Wed   May 08
20°C | 8°C
N 14 km/h
almost clear and no rain

almost clear and no rain

Thu   May 09
22°C | 7°C
W 14 km/h
almost clear and no rain

almost clear and no rain

Interested in more climate information?

This site provides you with all the information you need about the climate in Osan.

Our site offers climate and forecast data for every country in the world. Are you going to South Korea? On this website you can find historical weather averages for many cities in South Korea. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.

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