Great experience, hassle free and very convenient to purchase via KKday app, worth to visit Nagasaki Atomic Bomb Museum, could earned unvaluable knowledge and lesson from here.
Because of the large group, hiring a car and planning your own itinerary to visit more distant attractions and hotels is really easy and convenient. They'll notify you before departure to create a LINE group, so you don't have to worry about not being able to contact the driver. Highly recommended.
Anonymous User
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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
5/30
Saturday
Sunny
25.1°C/18.2°C
5/31
Sunday
Sunny
26.3°C/18.9°C
6/1
Monday
Sunny
26.6°C/19.9°C
6/2
Tuesday
Heavy rain
22.5°C/20.8°C
6/3
Wednesday
Patchy rain nearby
24.7°C/21.8°C
6/4
Thursday
Cloudy
25.7°C/20.4°C
6/5
Friday
Sunny
24.5°C/18.5°C
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