Weather in Galveston: May
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Average day temperature: | 82.4°F |
| Average night temperature: | 73.9°F | |
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Sea water temperature: | 78.8°F |
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Number of sunny days: | 8 days |
| Day length: | 13.3 - 13.9 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 1.7 in. | |
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forecast
| Galveston |
temperature
| Galveston |
Air temperature in May, °F
The highest day temperature during May of 2025 was 93°F. At the same time the lowest night temperature was 62°F. Daily and nightly averages during May were 84.9°F and 73.5°F.
Sea water temperature in Galveston in May, °F
The average sea water temperature in May of 2025 was 79.6°F. The highest and lowest sea temperatures during the month were 82.9°F and 76.5°F.
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Galveston in May is 1.7 in. Other months of the year show relatively similar values.
The average wind speed value in May is 11.0 mph It makes May one of the most windy months 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 May is: 7.1.
Best time for vacation in Galveston
Galveston on a weather map
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