Jeju Weather: January
 |
Average Day Temperature: | 44.3°F |
|
Average Night Temperature: | 40.1°F |
|
Sea Water Temperature: | 60.3°F |
|
Number of Sunny Days: | 7 days |
| Sunshine Hours: | 10.0 - 10.5 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 2.5 in | |
| detailed information | ||
Temperature
| Jeju |
Air Temperature in January, °F
| Day Temperature | Night Temperature |
The highest day temperature in January 2025 was 52°F. The lowest night temperature was 31°F. The average values for day and night temperatures during January were 44.1°F и 39.6°F respectivly.
Jeju Water Sea Temperature in January, °F
The average sea surface temperature in January 2025 for Jeju was 60.4°F. The maximum and minimum values were 58.4°F and 62.0°F respectively.
| Sunny days | |
| Cloudy days | |
| Gloomy days |
Most of the days in January are gloomy but you can also expect sunny days.
Precipitation Totals in January, in
Precipitation total in January for Jeju is 2.5 in. It makes january one of the least rainy months of the year.
The average wind speed in January is 14.4 mph. It makes January the most windy month of the year for Jeju.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Jeju in January is 4.4 hours.
Jeju on the Weather Map
| 1800 |  |
60°F | SE 8 mph |
| 2100 |  |
56°F | SE 6 mph |
| 0000 | |
54°F | S 3 mph |
| 0300 |  |
54°F | S 2 mph |
| 0600 |  |
52°F | W 2 mph |
| 0900 |  |
62°F | SW 2 mph |
| 1200 | |
66°F | SW 5 mph |
| 1500 | |
66°F | S 5 mph |