Weather in Nagasaki: July
| Average day temperature: | 84.4°F | |
| Average night temperature: | 77.1°F | |
| Sea water temperature: | 79.0°F | |
| Number of sunny days: | 12 days | |
| Day length: | 13.8 - 14.3 hours | |
| Number of rainy days: | 12 days | |
| Precipitation totals: | 11.9 in. | |
| more information | ||
forecast
| Nagasaki |
temperature
| Nagasaki |
Air temperature in July, °F
The highest day temperature during July of 2025 was 89°F. At the same time the lowest night temperature was 76°F. Daily and nightly averages during July were 85.4°F and 77.7°F.
Sea water temperature in Nagasaki in July, °F
The average sea water temperature in July of 2025 was 83.4°F. The highest and lowest sea temperatures during the month were 85.1°F and 80.8°F.
Number of sunny, partly cloudy and cloudy days in July is almost equal.
Precipitation total in July, in.
Precipitation total value in Nagasaki in July is 13.3 in. It makes july the most rainy month of the year.
The average wind speed value in July is 7.4 mph It makes July 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 July is: 7.5.
Best time for vacation in Nagasaki
Nagasaki on a weather map

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