Weather in Haikou: April
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Average day temperature: | 84.9°F |
| Average night temperature: | 74.7°F | |
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Sea water temperature: | 75.6°F |
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Number of sunny days: | 13 days |
| Day length: | 12.3 - 12.9 hours | |
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Number of rainy days: | 4 days |
| Precipitation totals: | 2.2 in. | |
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forecast
| Haikou |
temperature
| Haikou |
Air temperature in April, °F
The highest day temperature during April of 2026 was 96°F. At the same time the lowest night temperature was 72°F. Daily and nightly averages during April were 89.5°F and 76.6°F.
Sea water temperature in Haikou in April, °F
The average sea water temperature in April of 2026 was 79.9°F. The highest and lowest sea temperatures during the month were 82.8°F and 78.1°F.
Number of sunny, partly cloudy and cloudy days in April is almost equal.
Precipitation total in April, in.
Precipitation total value in Haikou in April is 2.0 in. Other months of the year show relatively similar values.
The average wind speed value in April is 10.4 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: 7.8.
Best time for vacation in Haikou
Haikou on a weather map
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