Weather in Hainan: April
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Average day temperature: | 87.2°F |
| Average night temperature: | 69.8°F | |
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Sea water temperature: | 79.1°F |
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Number of sunny days: | 12 days |
| Day length: | 12.3 - 12.8 hours | |
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Number of rainy days: | 9 days |
| Precipitation totals: | 4.1 in. | |
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forecast
| Hainan |
temperature
| Hainan |
Air temperature in April, °F
The highest day temperature during April of 2026 was 104°F. At the same time the lowest night temperature was 68°F. Daily and nightly averages during April were 96.2°F and 70.6°F.
Sea water temperature in Hainan in April, °F
The average sea water temperature in April of 2026 was 82.7°F. The highest and lowest sea temperatures during the month were 84.6°F and 80.8°F.
Number of sunny, partly cloudy and cloudy days in April is almost equal.
Precipitation total in April, in.
Precipitation total value in Hainan in April is 3.6 in. Other months of the year show relatively similar values.
The average wind speed value in April is 4.6 mph It makes April most windy month of the year.
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: 7.6.
Best time for vacation in Hainan
Hainan on a weather map
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