Weather in Incheon: April
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Average day temperature: | 57.5°F |
| Average night temperature: | 51.1°F | |
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Sea water temperature: | 48.9°F |
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Number of sunny days: | 17 days |
| Day length: | 12.6 - 13.7 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 2.2 in. | |
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forecast
| Incheon |
temperature
| Incheon |
Air temperature in April, °F
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 56.3°F and 51.8°F.
Sea water temperature in Incheon in April, °F
The average sea water temperature in April of 2026 was 51.0°F. The highest and lowest sea temperatures during the month were 55.8°F and 46.9°F.
Mostly all days in April are sunny but cloudy days are also possible.
Precipitation total in April, in.
Precipitation total value in Incheon in April is 2.1 in. Other months of the year show relatively similar values.
The average wind speed value in April is 9.4 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 April is: 8.9.
Best time for vacation in Incheon
Incheon on a weather map
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