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Anonymous User
Solo traveler
Nagasaki Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Nagasaki year round climate
Spring (March–May): 12.8–19.9°C on average, mild and rainy, with more rain in March but also sunny days. Common activities: Cherry blossom viewing (some varieties), visiting historical sites, enjoying the seaside. Recommended clothing: Light jacket, long-sleeved shirts, comfortable shoes.
Summer (June–August): 23.6–29.2°C on average, hot and humid, with abundant rainfall, especially in June. Common activities: Swimming at the beach, hiking, enjoying local cuisine. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): 16.0–27.1°C on average, comfortable and pleasant, with gradually decreasing rainfall. Common activities: Viewing autumn leaves (in some areas), outdoor activities, enjoying the crisp autumn air. Recommended clothing: Comfortable long-sleeved shirts, light jacket.
Winter (December–February): 7.6–9.0°C on average, mild and humid, with little rain. Common activities: Onsen (hot spring) bathing, indoor sightseeing, enjoying local hot pot. Recommended clothing: Warm clothing, jacket, scarf.
Nagasaki climatological average
Annual average temperature: approx. 18.3°C / Annual rainfall: approx. 2007 mm / Summer humidity: 70%–80% / Rainiest month: June
Nagasaki monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
7.6°C
93
February
8.8°C
86.3
March
12.8°C
212
April
17°C
194.7
May
19.9°C
207
June
23.6°C
324.7
July
28.1°C
282.3
August
29.2°C
243.7
September
27.1°C
165.3
October
20.8°C
69
November
16°C
85.7
December
9°C
43.3
Nagasaki weather for the next seven days
12/18
Thursday
Sunny
14.1°C/9.8°C
12/19
Friday
Sunny
16.2°C/10.5°C
12/20
Saturday
Moderate rain
18.5°C/14.7°C
12/21
Sunday
Heavy rain
17.2°C/12.8°C
12/22
Monday
Patchy rain nearby
12.9°C/11.4°C
12/23
Tuesday
Sunny
13.8°C/10.8°C
12/24
Wednesday
Sunny
14.1°C/8.7°C
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