Nagasaki is a port city on Japan's Kyushu island with a uniquely layered history — centuries of trade with China, Portugal, and the Netherlands left behind temples, cathedrals, and Western-style mansions, while August 9, 1945 marked it as the second city struck by an atomic bomb. Today Nagasaki blends solemn peace memorials with lively Chinatown streets, hillside tram rides, and some of Japan's most distinctive cuisine.
Nagasaki has a humid subtropical climate (Köppen Cfa) with hot, humid summers and mild winters. The rainy season (tsuyu) runs from mid-June through mid-July, bringing persistent rain. Typhoon season peaks August-October and can disrupt outdoor activities and ferry services. Spring (March-May) and autumn (October-November) are the most comfortable seasons for sightseeing, with clear skies and mild temperatures.
Best time to visit
Best: Year-round
Avoid: None
Month-by-month weather
Typical conditions throughout the year.
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The seasons
What to expect in each part of the year.
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Crowds & peak times
When to expect tourists and when to avoid them.
- Items
- Period
- Kunchi Festival (Oct 7-9)
- Crowd level
- Extremely High
- Tip
- Book accommodation 3-6 months in advance; festival tickets for main suwa shrine events are distributed by lottery
- Period
- Golden Week (late April-early May)
- Crowd level
- High
- Tip
- Book accommodation early; trams and popular restaurants are congested
- Period
- August 9 Peace Ceremony
- Crowd level
- High
- Tip
- Accommodation books out; arrive at Peace Park early on the day
- Period
- Chinese New Year / Lantern Festival
- Crowd level
- High (evenings)
- Tip
- Arrive after dinner (7PM+) for the most atmospheric lantern illuminations; daytime is manageable
- Period
- Jan-Feb, Jun-Jul (off-peak)
- Crowd level
- Low
- Tip
- Cheapest hotel rates; all major sights easily accessible without queuing
Major events & festivals
Time your visit around what matters.
Over 15,000 lanterns and ornaments illuminate Chinatown, Hamano-machi, Suwa Shrine, and the waterfront. Dragon dances, traditional performances, and Chinese New Year celebrations.
Citywide memorial marking the atomic bomb detonation. Bells toll, world leaders attend, doves are released. Open to the public at Peace Park (Heiwa Koen).
Designated an Important Intangible Folk Cultural Property of Japan. Chinese dragon dances, Dutch-style floats, and traditional Japanese arts performed at Suwa Shrine — considered Japan's most magnificent festival.
Harbor fireworks and boat parades celebrating Nagasaki's maritime heritage. Best viewed from Dejima Wharf or the Inasayama observation deck.