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Kumi Weather by Month
Average temperatures, rainfall and humidity for Kumi, Korea, South, month by month, built from OpenWeather's historical records. Use it to see what a typical Kumi month looks like before you travel — then check the live Kumi forecast for the days ahead.
Warmest month
August
31°C average high
Coolest month
January
-5°C average low
Wettest month
August
82 mm of rain
Driest month
January
9 mm of rain
Average temperature and rainfall in Kumi by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 5°C | -5°C | -17°C / 15°C | 9 mm | 57% | 9 km/h |
| February | 7°C | -3°C | -17°C / 24°C | 16 mm | 55% | 9 km/h |
| March | 14°C | 3°C | -8°C / 28°C | 32 mm | 55% | 8 km/h |
| April | 20°C | 8°C | -1°C / 31°C | 54 mm | 55% | 7 km/h |
| May | 25°C | 13°C | 4°C / 36°C | 43 mm | 59% | 7 km/h |
| June | 28°C | 19°C | 8°C / 36°C | 53 mm | 66% | 6 km/h |
| July | 31°C | 23°C | 11°C / 38°C | 81 mm | 76% | 7 km/h |
| August | 31°C | 23°C | 14°C / 38°C | 82 mm | 76% | 6 km/h |
| September | 26°C | 18°C | 8°C / 35°C | 58 mm | 77% | 5 km/h |
| October | 21°C | 10°C | -1°C / 29°C | 41 mm | 71% | 6 km/h |
| November | 14°C | 3°C | -9°C / 28°C | 22 mm | 64% | 7 km/h |
| December | 6°C | -4°C | -15°C / 18°C | 10 mm | 60% | 8 km/h |
Best time to visit Kumi
The most comfortable time to visit Kumi is generally May and September to October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around August, totalling about 502 mm a year.
Travellers who prefer heat should aim for August, when highs average 31°C. August is the month to avoid if rain would spoil your plans — it averages 82 mm, roughly 10× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Kumi forecast for what is happening now.