Weather in Jeju: April
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Average day temperature: | 60.6°F |
| Average night temperature: | 54.3°F | |
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Sea water temperature: | 58.8°F |
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Number of sunny days: | 14 days |
| Day length: | 12.5 - 13.5 hours | |
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Number of rainy days: | 5 days |
| Precipitation totals: | 3.7 in. | |
| more information | ||
14 days
forecast
forecast
| Jeju |
sea water
temperature
temperature
| Jeju |
Air temperature in April, °F
Show year:
2026
2025
2024
The highest day temperature during April of 2026 was 65°F. At the same time the lowest night temperature was 43°F. Daily and nightly averages during April were 59.8°F and 54.7°F.
Sea water temperature in Jeju in April, °F
Show year:
2026
2025
2024
The average sea water temperature in April of 2026 was 60.5°F. The highest and lowest sea temperatures during the month were 61.9°F and 58.5°F.
Sunny, partly cloudy and cloudy days
Mostly all days in April are sunny but cloudy days are also possible.
Precipitation total in April, in.
Precipitation total value in Jeju in April is 3.3 in. Other months of the year show relatively similar values.
Wind speed in April, mph
The average wind speed value in April is 9.9 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in April is: 7.8.
Best time for vacation in Jeju
Jeju on a weather map
Places in South Korea:
Name
°F
24 Hours Forecast
Jeju
Local time: 03:15
May 18, monday
0600
63°F
NW
4 mph
4 mph
0900
72°F
SE
4 mph
4 mph
1200
75°F
S
5 mph
5 mph
1500
77°F
S
5 mph
5 mph
1800
73°F
S
4 mph
4 mph
2100
68°F
N
4 mph
4 mph
May 19, tuesday
0000
66°F
NW
2 mph
2 mph
0300
64°F
N
4 mph
4 mph
