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Nagasaki

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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): 55–67°F 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): 74–84°F 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): 60–80°F 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): 45–48°F 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. 64.9°F / Annual rainfall: approx. 2007 mm / Summer humidity: 70%–80% / Rainiest month: June

Nagasaki monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
45.7°F
93
February
47.8°F
86.3
March
55°F
212
April
62.6°F
194.7
May
67.8°F
207
June
74.5°F
324.7
July
82.6°F
282.3
August
84.6°F
243.7
September
80.8°F
165.3
October
69.4°F
69
November
60.8°F
85.7
December
48.2°F
43.3

Nagasaki weather for the next seven days

12/16
Tuesday
Partly Cloudy
55.7°F/46°F
12/17
Wednesday
Patchy rain nearby
61.2°F/53.5°F
12/18
Thursday
Sunny
58.9°F/51.3°F
12/19
Friday
Sunny
63.1°F/51°F
12/20
Saturday
Patchy rain nearby
65.6°F/57.9°F
12/21
Sunday
Moderate rain
61.3°F/57°F
12/22
Monday
Sunny
56.8°F/50°F