Nagasaki weather in July
July in Nagasaki: warm, soaked, with clean air — a gamble, with 20 rainy days.
#12 of 12 months in Nagasaki · #835 of 897 destinations to visit in July · comfort 51/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Nagasaki in July
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Nagasaki climate normals — July
| Daytime high | 28°C / 82°F | 🌤 warm |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Rainfall | 405 mm / 15.9 in | ⛈ soaked |
| Rainy days | 20 days | |
| Humidity | 89% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 8.4 h/day | |
| Daylight | 14.1 h | |
| Wind | 20 km/h / 12 mph | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Nagasaki in July — FAQ
- Is July a good time to visit Nagasaki?
- July in Nagasaki: warm, soaked, with clean air — a gamble, with 20 rainy days. It ranks #12 of 12 months for Nagasaki on SeasonMap's comfort score (51/100).
- What is the weather like in Nagasaki in July?
- In July, Nagasaki averages a daily high of 27.7°C and a low of 24.8°C, with about 404.8 mm of rain over roughly 20.2 rainy days.
- What is the air quality in Nagasaki in July?
- Nagasaki has a mean US Air Quality Index of about 34 in July.