Nagasaki, JapanQuick decision
When to visit Nagasaki?
🌞 Best time overall
October
🌡️ Optimal temperature
64°F–73°F in October
🌧 Least rain
27% rainy days in October
🌧 Wettest month
February (35%)
📅 Best score
7.7/10
By trip type
Best time by type of trip
Peace MemorialYear-round — Peace Park, museum, August 9 ceremony.
Glover GardenMar–May — hillside gardens, Western architecture, bay views.
Kunchi FestivalOctober — 400-year-old Chinese dragon festival, Dejima quarter.
Champon & castellaYear-round — champon noodles, Portuguese castella cake, shippoku.
Monthly climate data
Nagasaki weather month by month
| Month | Min °F | Max °F | Rainy days (%) | Precip. in/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌫️ January | 41°F | 52°F | 29% | 0.1in | 7.6h | 5.0/10 |
| 🌦️ February | 41°F | 52°F | 35% | 0.1in | 8.9h | 4.9/10 |
| ⛅ March | 46°F | 59°F | 38% | 0.2in | 10.0h | 6.3/10 |
| 🌤️ April | 54°F | 66°F | 35% | 0.2in | 10.7h | 7.2/10 |
| 🌤️ May | 61°F | 73°F | 35% | 0.3in | 10.2h | 7.5/10 |
| 🌤️ June | 68°F | 79°F | 53% | 0.5in | 8.8h | 7.3/10 |
| 🌤️ July | 77°F | 84°F | 58% | 0.4in | 11.6h | 7.4/10 |
| 🌤️ August | 79°F | 88°F | 49% | 0.3in | 12.6h | 7.4/10 |
| 🌤️ September | 73°F | 82°F | 51% | 0.3in | 10.4h | 7.6/10 |
| 🌤️ October | 64°F | 73°F | 27% | 0.1in | 10.0h | 7.7/10 |
| 🌤️ November | 54°F | 64°F | 29% | 0.1in | 9.4h | 7.1/10 |
| ⛅ December | 43°F | 54°F | 28% | 0.1in | 7.7h | 5.3/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 19°F, 36% rainy days, 10.3h sunshine/day. Score: 7.0/10.
☀️ Summer (Jun–Aug) — Good time
Average 29°F, 53% rainy days, 11.0h sunshine/day. Score: 7.4/10.
🍂 Autumn (Sep–Nov) — Good time
Average 23°F, 36% rainy days, 9.9h sunshine/day. Score: 7.5/10.
❄️ Winter (Dec–Feb) — Challenging climate
Average 11°F, 31% rainy days, 8.1h sunshine/day. Score: 5.1/10.
Accommodation
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Check availability during the recommended period
Tip : off-peak months (February, March) are cheapest but weather is significantly worse.
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Activities and tours in Nagasaki
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
October is ideal with 27% rainy days and 23°F.
February is the wettest month with 35% rainy days.
Yes, October is the best month with an average of 23°F.
In winter, the average score is 5.1/10. Difficult period — prefer the peak season.
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