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The best time to visit Nagasaki
March, April, May, October and November — daytime highs around 20°C. Every number on this page is measured, not guessed.
Nagasaki month by month
| Month | Day | Night | Wet days | |
|---|---|---|---|---|
| January | 10°C | 5°C | 8 | |
| February | 11°C | 5°C | 8 | Shoulder |
| March | 17°C | 9°C | 12 | Best |
| April | 20°C | 13°C | 10 | Best |
| May | 23°C | 16°C | 14 | Best |
| June | 26°C | 21°C | 15 | Shoulder |
| July | 30°C | 25°C | 19 | |
| August | 30°C | 25°C | 20 | |
| September | 29°C | 23°C | 12 | Shoulder |
| October | 23°C | 17°C | 5 | Best |
| November | 18°C | 12°C | 8 | Best |
| December | 12°C | 6°C | 10 | Shoulder |
The short version
Warmest: July, around 30°C by day. Coolest: January, around 10°C by day and 5°C at night. Wettest: August with about 20 wet days. Driest: October with about 5.
If you want fewer people: February, June, September, December sit right beside the best months. The weather is close and the crowds are not.
Book it for those months
Prices climb as the good months fill up.
Common questions
When is the best time to visit Nagasaki?
The best months are March, April, May, October and November, when daytime highs sit around 20°C.
What is the hottest month in Nagasaki?
July, with daytime highs around 30°C.
What is the wettest month in Nagasaki?
August, with about 20 wet days. The driest is October with about 5.
When is the cheapest time to visit Nagasaki?
Prices follow the weather. The months either side of the best ones — February, June, September, December — are usually cheaper with similar conditions.
Temperatures and wet days are measured, not estimated: ERA5 reanalysis for 2021-2023, at Nagasaki. Source: Open-Meteo.