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Nagasaki City

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Travel Info
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Travel Info

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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

4/28
Tuesday
Partly Cloudy
19.9°C/15.6°C
4/29
Wednesday
Moderate rain
17.4°C/12.2°C
4/30
Thursday
Moderate rain
14.6°C/11.7°C
5/1
Friday
Moderate rain
17.7°C/13.8°C
5/2
Saturday
Partly Cloudy
20.6°C/14.5°C
5/3
Sunday
Heavy rain
18.1°C/15.7°C
5/4
Monday
Patchy rain nearby
19.1°C/15°C

Nagasaki City Frequently Asked Questions and Useful Information for Travel

What is Nagasaki City known for?

Nagasaki is celebrated as a historic international port city and a UNESCO World Heritage Site for its Hidden Christian Sites. It is also known as the site of the second atomic bombing in World War II, and for its distinctive blend of Dutch, Portuguese, Chinese, and Japanese cultures. Visitors are drawn to its Peace Park and museum, which advocate for global peace, as well as its unique cuisine, including Castella cake and Sasebo burgers.

Can people live in Nagasaki City now?

Yes, Nagasaki City was rebuilt after the atomic bombing and its radiation levels are now equivalent to natural background radiation, posing no danger to residents. The radioactivity from the atomic bomb dissipated quickly due to the high altitude of the air burst, which caused minimal ground contamination, allowing for the rapid recovery and revitalization of the city into the thriving metropolis it is today.

Is Nagasaki City good for tourists?

Nagasaki City is widely considered worth visiting for its unique history, European-influenced culture, stunning night views from Mount Inasa, delicious food, and fascinating sites like Dejima and the Peace Park. It offers a different experience compared to other Japanese cities due to its historical role as Japan's sole port for trade with the West and its tragic past as the second city targeted by an atomic bomb.

What is the historical significance of Nagasaki City?

For centuries, Nagasaki served as Japan's sole gateway for foreign trade, especially during the nation's period of isolation, fostering significant cultural exchange. It was the second and last city to be hit by an atomic bomb, an event commemorated in the Nagasaki Peace Park and Atomic Bomb Museum. The city also hosts UNESCO World Heritage Sites that highlight the history of Christianity in Japan.

What is Nagasaki City's unique cultural identity?

Nagasaki City boasts a distinct culture shaped by centuries of foreign influence, particularly from China and the Netherlands, evident in its architecture, cuisine, and history. This international flair is a direct result of its historical role as a key trading port, offering a unique cultural tapestry unlike anywhere else in Japan.