Average annual temperature is 15.9 °C
Absolute maximum temperature: 33.8 °C
Absolute minimum temperature: -3.5 °C
Number of sunny days: 89 days
Number of rainy days: 273 days
Number of snow days: 3 days
Look at detailed online map of Cheju
* Weather data for Cheju China is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 21.2 | 23.3 | 27.0 | 32.9 | 33.8 | 29.6 | 31.1 | 28.0 | 27.7 | 27.0 | 23.6 | 24.5 |
| Average daytime temperature (°C) | 9.7 | 13.7 | 17.8 | 24.5 | 26.1 | 26.0 | 26.8 | 25.9 | 25.4 | 20.7 | 18.3 | 13.3 |
| Average temperature (°C) | 5.2 | 9.1 | 12.9 | 17.8 | 20.5 | 21.2 | 22.3 | 21.6 | 20.8 | 16.7 | 13.5 | 8.5 |
| Average night temperature (°C) | 0.8 | 5.2 | 8.5 | 12.8 | 16.2 | 17.7 | 18.7 | 18.1 | 17.0 | 13.1 | 9.2 | 4.5 |
| Absolute minimum temperature (°C) | -3.5 | -0.2 | 1.6 | 7.0 | 13.3 | 14.2 | 15.2 | 12.3 | 12.7 | 7.4 | 1.5 | -2.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 |
| Daylight mean duration (h) | 10.7 | 11.3 | 12.0 | 12.8 | 13.4 | 13.8 | 13.6 | 13.0 | 12.3 | 11.5 | 10.9 | 10.5 |
| Daylight minimum duration (h) | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 |
| Sunshine mean duration (h) | 4.2 | 3.5 | 5.3 | 8.7 | 7.5 | 7.4 | 8.8 | 9.6 | 10.2 | 6.2 | 6.3 | 5.3 |
| Precipitation (mm) | 14 | 49 | 79 | 36 | 110 | 382 | 234 | 367 | 150 | 139 | 38 | 11 |
| Sunny days | 17 | 8 | 8 | 6 | 7 | 5 | 3 | 2 | 2 | 8 | 9 | 14 |
| Rainy days | 11 | 20 | 23 | 24 | 24 | 25 | 28 | 29 | 28 | 23 | 21 | 17 |
| Snow days | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Cheju during the most sunny months:
The largest precipitation sum in Cheju is at