Jeju Weather: May
 |
Average Day Temperature: | 69.8°F |
|
Average Night Temperature: | 62.3°F |
|
Sea Water Temperature: | 63.2°F |
|
Number of Sunny Days: | 15 days |
| Sunshine Hours: | 13.5 - 14.2 hours | |
|
Number of Rainy Days: | 5 days |
| Precipitation Totals: | 4.6 in | |
| detailed information | ||
Sea Water
Temperature
Temperature
| Jeju |
Air Temperature in May, °F
The highest day temperature in May 2025 was 78°F. The lowest night temperature was 51°F. The average values for day and night temperatures during May were 67.8°F и 60.7°F respectivly.
Jeju Water Sea Temperature in May, °F
The average sea surface temperature in May 2025 for Jeju was 62.1°F. The maximum and minimum values were 60.2°F and 64.4°F respectively.
Sunny, Cloudy and Gloomy days
Most of the days in May are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in May, in
Precipitation total in May for Jeju is 4.6 in.
Wind Speed in May, mph
The average wind speed in May is 10.0 mph. It makes May one of the most windless months of the year for Jeju.
Average Sunny Hours Per Day
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 May is 9.0 hours.
Jeju on the Weather Map
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Jeju
Local time: 17:05
05 dec, friday
| 1800 |  |
42°F | S 9 mph |
| 2100 | |
40°F | S 4 mph |
06 dec, saturday
| 0000 | |
42°F | SE 2 mph |
| 0300 | |
42°F | E 4 mph |
| 0600 | |
42°F | E 6 mph |
| 0900 |  |
46°F | E 7 mph |
| 1200 | |
54°F | E 11 mph |
| 1500 |  |
54°F | E 13 mph |