Weather in Nagasaki: May
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Average day temperature: | 72.1°F |
| Average night temperature: | 63.8°F | |
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Sea water temperature: | 66.8°F |
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Number of sunny days: | 14 days |
| Day length: | 13.5 - 14.2 hours | |
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Number of rainy days: | 7 days |
| Precipitation totals: | 6.7 in. | |
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forecast
| Nagasaki |
temperature
| Nagasaki |
Air temperature in May, °F
The highest day temperature during May of 2025 was 74°F. At the same time the lowest night temperature was 54°F. Daily and nightly averages during May were 68.3°F and 61.4°F.
Sea water temperature in Nagasaki in May, °F
The average sea water temperature in May of 2025 was 66.0°F. The highest and lowest sea temperatures during the month were 68.9°F and 63.3°F.
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Nagasaki in May is 7.8 in. It makes may one of the most rainy months of the year.
The average wind speed value in May is 7.2 mph It makes May one of the least 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: 7.3.
Best time for vacation in Nagasaki
Nagasaki on a weather map
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