ClimateForecastDecemberJanuary >>

Cheonan Climate by Month

The temperature in Cheonan can vary greatly throughout the year. The temperatures shift from very warm to cold. It also has a relatively rain/snowy climate with high levels of precipitation. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

Depending on the time of the year, temperatures range from very warm to chilly in Cheonan. On average, daytime temperatures range from a very warm 31°C in August to a chilly 4°C in January. Nighttime temperatures can drop, with averages reaching -5°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Cheonan has a relatively rain/snowy climate with high precipitation levels, averaging 1195 mm of rain/snowfall annually. The seasons in Cheonan, bring significant changes in precipitation. The wettest month, July, receives heavy rainfall, with an average of 265 mm of precipitation. This rainfall is distributed across 15 rainy days.

In contrast, the driest month, January, experiences much less snow/rainfall, totaling 25 mm over 9 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

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

Sunshine over the year

Cheonan enjoys sunny spells year-round. May sees up to 8.3 hours of daily sunshine, perfect for a sunny trip. December, the least sunny month, still offers a generous 5.3 hours of sun despite this cloudier time of the year.

Monthly hours of sunshine

Daily hours of sunshine

The best time of year to visit Cheonan 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 Cheonan?
    Most rainfall (rainy season) is seen in July and August.
  • Which is the warmest month in Cheonan?
    August has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Cheonan?
    The coldest month is January with an average maximum temperature of 4°C.
  • Which is the wettest month in Cheonan?
    July tops the wettest month list with 265 mm of rainfall.
  • Which is the driest month in Cheonan?
    January is the driest month with 25 mm of precipitation.
  • Which is the sunniest month in Cheonan?
    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.

    Forecast for Cheonan

    Fri   Dec 13
    3°C | -4°C
    NW 7 km/h
    2.2 mm
    broken clouds and snow

    broken clouds and snow

    Sat   Dec 14
    4°C | -5°C
    NW 11 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Sun   Dec 15
    7°C | -4°C
    NW 11 km/h
    partly cloudy and no rain

    partly cloudy and no rain