Weather in Ha Long: May
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Average day temperature: | 85.2°F |
| Average night temperature: | 79.2°F | |
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Sea water temperature: | 82.2°F |
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Number of sunny days: | 9 days |
| Day length: | 12.9 - 13.3 hours | |
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Number of rainy days: | 7 days |
| Precipitation totals: | 3.6 in. | |
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forecast
| Ha Long |
temperature
| Ha Long |
Air temperature in May, °F
The highest day temperature during May of 2026 was 90°F. At the same time the lowest night temperature was 67°F. Daily and nightly averages during May were 84.5°F and 77.8°F.
Sea water temperature in Ha Long in May, °F
The average sea water temperature in May of 2026 was 83.9°F. The highest and lowest sea temperatures during the month were 90.1°F and 80.4°F.
Mostly all days in May are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in May, in.
Precipitation total value in Ha Long in May is 3.6 in. Other months of the year show relatively similar values.
The average wind speed value in May is 7.7 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 May is: 5.5.
Best time for vacation in Ha Long
Ha Long on a weather map
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