Weather in Jeju: September
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Average day temperature: | 77.0°F |
| Average night temperature: | 72.4°F | |
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Sea water temperature: | 76.7°F |
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Number of sunny days: | 9 days |
| Day length: | 11.9 - 12.9 hours | |
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Number of rainy days: | 7 days |
| Precipitation totals: | 9.5 in. | |
| more information | ||
forecast
| Jeju |
temperature
| Jeju |
Air temperature in September, °F
The highest day temperature during September of 2023 was 85°F. At the same time the lowest night temperature was 68°F. Day and night temperature averages during September were 79.1°F and 73.3°F.
Sea water temperature in Jeju in September, °F
The average sea water temperature in September of 2023 was 80.3°F. The highest and lowest sea temperatures during the month were 82.9°F and 76.8°F.
Mostly all days in September are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Jeju in September is 11.8 in. Other months of the year show relatively similar values.
The average wind speed value in September is 11.7 mph
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 September is: 5.5.
Best time for vacation in Jeju
Jeju on a weather map
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