Nagasaki in September
Great time to visit
September marks the welcome transition from summer's oppressive heat to comfortable autumn weather. The month improves dramatically as it progresses, ending on a high note.
Weather
September starts hot but gradually becomes more bearable as autumn approaches. Humidity begins dropping in the latter half of the month, making outdoor exploration pleasant again. Typhoon risk continues but decreases toward month's end.
28°C high22°C low11 rain days
Crowds & Cost
moderate crowds
~$110/day average
Events & Festivals
- •Nagasaki Kunchi Festival preparation
- •Early autumn festivals
- •Moon viewing celebrations
September Tips
- •Late September offers the best weather compromise between summer heat and autumn comfort
- •Typhoon season means keeping flexible travel plans
- •This is when locals start venturing outdoors again after summer's heat
All Months
Spring and fall own Nagasaki's calendar. Cherry blossoms bloom in early April around Peace Park and Glover Garden, while autumn colors peak in November around Mount Inasa.
May through June brings perfect weather before the rainy season hits. Temperatures hover around 20-25°C and the crowds thin out after Golden Week.
Summer means humidity that'll melt your camera lens and temperatures pushing 35°C. But the Obon festival in August brings lantern displays that transform the city into something magical.
Winter stays mild compared to the rest of Japan – rarely below 5°C – but the Lantern Festival in February makes the cold worthwhile. Chinatown explodes with 15,000 lanterns for two weeks.
Skip July through early September unless you love sweating through your clothes. The rainy season dumps serious water, and typhoons occasionally crash the party.
Book accommodation early for Lantern Festival (February) and cherry blossom season (early April). Hotels fill up and prices double.
Nagasaki Scores
Solo
8/10
Couples
6/10
Families
7/10
Adventure
5/10
Budget
6/10
Luxury
6/10
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