Cheju Weather Averages
Climate averages for Cheju based on 10 years of historical data.
Annual avg temp
16.1°C
Annual avg high
18.3°C
Annual avg low
14.0°C
Record high
34°C
Record low
-5°C
Annual rainfall
2064 mm
Rainy days
144
Sunshine
3.3h/day
Niiskus
74%
Average Cheju temperatures by month
Avg high
Avg low
Average rainfall in Cheju by month
Rainfall (mm)
Sunshine hours in Cheju by month
Sunshine (h/day)
Humidity in Cheju by month
Average humidity
Sea temperature in Cheju by month
Sea temp
Month-by-month averages
| Month | Avg High | Avg Low | Rainfall | Sunshine | Sea Temp |
|---|---|---|---|---|---|
| Jaanuari ilm | 8°C | 4°C | 103 mm | 2.6h | 16.4°C |
| Veebruari ilm | 9°C | 4°C | 91 mm | 2.7h | 15.2°C |
| Märtsi ilm | 13°C | 8°C | 120 mm | 4.0h | 14.8°C |
| Aprilli ilm | 17°C | 12°C | 136 mm | 4.7h | 16.1°C |
| Mai ilm | 21°C | 15°C | 153 mm | 4.9h | 17.9°C |
| Juuni ilm | 24°C | 20°C | 244 mm | 3.9h | 21.9°C |
| Juuli ilm | 28°C | 24°C | 261 mm | 2.6h | 26.1°C |
| Augusti ilm | 29°C | 25°C | 231 mm | 2.6h | 30.1°C |
| Septembri ilm | 25°C | 22°C | 337 mm | 2.4h | 28.6°C |
| Oktoobri ilm | 20°C | 17°C | 160 mm | 3.6h | 24.4°C |
| Novembri ilm | 16°C | 12°C | 130 mm | 3.2h | 20.5°C |
| Detsembri ilm | 10°C | 6°C | 97 mm | 2.3h | 18.2°C |