Weather in Guam: May
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Average day temperature: | 86.8°F |
| Average night temperature: | 82.2°F | |
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Sea water temperature: | 84.2°F |
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Number of sunny days: | 4 days |
| Day length: | 12.6 - 12.9 hours | |
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Number of rainy days: | 6 days |
| Precipitation totals: | 3.6 in. | |
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forecast
| Guam |
temperature
| Guam |
Air temperature in May, °F
The highest day temperature during May of 2025 was 86°F. At the same time the lowest night temperature was 79°F. Daily and nightly averages during May were 85.0°F and 80.7°F.
Sea water temperature in Guam in May, °F
The average sea water temperature in May of 2025 was 84.3°F. The highest and lowest sea temperatures during the month were 85.3°F and 83.8°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 Guam in May is 3.8 in. Other months of the year show relatively similar values.
The average wind speed value in May is 12.8 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: 5.2.
Best time for vacation in Guam
Guam on a weather map
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