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Nagasaki City

Nagasaki City 1
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Nagasaki City Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Nagasaki City year round climate

  • Spring (March–May): Average 12.8–19.9°C, mild climate but with relatively high rainfall, especially in March and April. Common activities: Cherry blossom viewing, coastal walks, visiting historical sites. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 23.6–29.2°C, hot and humid with relatively high rainfall. Common activities: Beach activities, water sports, enjoying local cuisine. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 16.0–27.1°C, comfortable and pleasant climate with less rainfall. Common activities: Hiking, visiting museums, enjoying autumn cuisine. Recommended clothing: Light jacket, long-sleeved or short-sleeved shirt.
  • Winter (December–February): Average 7.6–9.0°C, cold climate with less rainfall. Common activities: Onsen (hot springs), visiting indoor attractions, enjoying hot pot and other winter dishes. Recommended clothing: Warm jacket, sweater, scarf, hat.

Nagasaki City climatological average

Annual average temperature: approx. 18°C / Annual rainfall: approx. 2007 mm / Summer humidity: 70%–80% / Rainiest month: June

Nagasaki City 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 City weather for the next seven days

12/5
Friday
Patchy rain nearby
11.5°C/6.2°C
12/6
Saturday
Partly Cloudy
12.4°C/5.9°C
12/7
Sunday
Partly Cloudy
18.2°C/13.1°C
12/8
Monday
Sunny
15.6°C/10.4°C
12/9
Tuesday
Sunny
14.5°C/8.7°C
12/10
Wednesday
Sunny
13.6°C/8.9°C
12/11
Thursday
Patchy rain nearby
12.6°C/10.8°C