Weather in Haikou: March
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Average day temperature: | 79.0°F |
Average night temperature: | 70.5°F | |
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Sea water temperature: | 70.5°F |
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Number of sunny days: | 10 days |
Day length: | 11.7 - 12.3 hours | |
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Number of rainy days: | 2 days |
Precipitation totals: | 1.2 in. | |
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Haikou |
temperature
Haikou |
Air temperature in March, °F
Day temperature | Night temperature |
The highest day temperature during March of 2025 was 88°F. At the same time the lowest night temperature was 60°F. Day and night temperature averages during March were 74.9°F and 68.3°F.
Sea water temperature in Haikou in March, °F
The average sea water temperature in March of 2025 was 69.7°F. The highest and lowest sea temperatures during the month were 73.6°F and 66.6°F.
Sunny days | |
Partly cloudy days | |
Cloudy days |
Number of sunny, partly cloudy and cloudy days in March is almost equal.
Precipitation total in March, in.
Precipitation total value in Haikou in March is 1.2 in. Other months of the year show relatively similar values.
The average wind speed value in March is 11.3 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 March is: 6.7.
Best time for vacation in Haikou
Haikou on a weather map

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