Weather in Nagasaki: June
| Average day temperature: | 76.8°F | |
| Average night temperature: | 70.3°F | |
| Sea water temperature: | 72.6°F | |
| Number of sunny days: | 10 days | |
| Day length: | 14.2 - 14.3 hours | |
| Number of rainy days: | 11 days | |
| Precipitation totals: | 12.8 in. | |
| more information | ||
forecast
| Nagasaki |
temperature
| Nagasaki |
Air temperature in June, °F
The highest day temperature during June of 2026 was 77°F. At the same time the lowest night temperature was 64°F. Daily and nightly averages during June were 73.4°F and 69.6°F.
Sea water temperature in Nagasaki in June, °F
The average sea water temperature in June of 2026 was 74.5°F. The highest and lowest sea temperatures during the month were 76.5°F and 71.2°F.
Mostly all days in June are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in June, in.
Precipitation total value in Nagasaki in June is 11.0 in. It makes june one of the most rainy months of the year.
The average wind speed value in June is 6.7 mph It makes June lest windy month 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 June is: 6.6.
Best time for vacation in Nagasaki
Nagasaki on a weather map

9 mph

7 mph

6 mph

1 mph

5 mph

5 mph

5 mph

3 mph


























