Nagasaki, Japan Weather
- Nagasaki, Japan Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- Temperature and possibility of rain in Nagasaki over the next 12 hours
- Temperature and possibility of rain in Nagasaki in the coming days
- Rainfall in Nagasaki in the coming days
- Nagasaki Weather Summary
- Weather averages by month
- Nagasaki's weather
- Frequently asked questions
- Comments
Current conditions
Condition: Clear Sky
Pressure: 1,028 hPa
Feel like: 10 °C
Temperature: 12°C
Cloud: 0%
Humidity: 55%
Wind: NNE - 8 km/h
Visibility: 43.34 km
30 Day Averages and Extremes
- Average high 19.8°C
- Average low 13.77°C
- Hottest day 26°C (23 October 2026)
- Coldest day 10°C (06 November 2026)
- Average humidity 75.13%
- Days with precipitation 21 days
- Highest precipitation 78 mm (24 October 2026)
Yesterday's Data
- Max: 15°C
- Min: 10°C
- Total Precipitation: 0 mm
Temperature and possibility of rain in Nagasaki over the next 12 hours
Temperature and possibility of rain in Nagasaki in the coming days
Rainfall in Nagasaki in the coming days
Nagasaki Climate Summary
Nagasaki features a Humid subtropical, no dry season (Köppen classification: Cfa), with an average annual temperature of 17.96ºC (64.33ºF), which is about 2.77% higher than the national average for Japan. Annually, the city experiences approximately 127.61 millimeters (5.02 inches) of rainfall, spread across 140.16 rainy days, accounting for 38.4% of the year.
| Longitude | 32.7503334 |
| Latitude | 129.8778888 |
| Yearly high temperature | 19.42ºC (66.96ºF) |
| Yearly low temperature | 15.6ºC (60.08ºF) |
| Hottest month | August 29.52ºC (85.14ºF) |
| Coldest month | December 8.47ºC (47.25ºF) |
| Yearly precip | 127.61mm (5.02in) |
| Days with rainfall | 140.16 days (38.4%) |
| Driest month | January (70.01%) |
| Wettest month | July (86.33%) |
Weather averages by month
| Month | High / Low (°C) | Rain |
|---|---|---|
| January | 9.87° / 6.63° | 9.09 days |
| February | 10.87° / 7.11° | 9.27 days |
| March | 13.79° / 9.46° | 9.27 days |
| April | 17.6° / 13.08° | 10.36 days |
| May | 21.57° / 17.12° | 9.18 days |
| June | 24.03° / 20.5° | 17.09 days |
| July | 27.35° / 23.97° | 19.18 days |
| August | 29.52° / 25.73° | 16.91 days |
| September | 26.7° / 22.86° | 14.36 days |
| October | 22.47° / 18.42° | 6.91 days |
| November | 17.44° / 13.82° | 8.36 days |
| December | 11.87° / 8.47° | 10.18 days |
Nagasaki's weather
- Tokyo
- Osaka
- Kanagawa
- Hokkaido
- Aichi
- Tottori
- Shiga
- Saga
- Ehime
- Iwate
- Kagawa
- Aomori
- Ibaraki
- Tochigi
- Shimane
- Fukushima
- Ishikawa
- Mie
- Fukuoka
- Yamagata
- Miyazaki
- Shizuoka
- Okayama
- Nara
- Wakayama
- Miyagi
- Chiba
- Toyama
- Hiroshima
- Okinawa
- Fukui
- Kochi
- Yamanashi
- Saitama
- Kagoshima
- Akita
- Yamaguchi
- Tokushima
- Niigata
- Kumamoto
- Kyoto
- Hyogo
- Gumma
- Gifu
- Oita
- Nagano
Frequently asked questions
1. What is the hottest month in Nagasaki?
August has the highest average monthly temperature (daily mean of 29.52ºC) and December are the coolest (daily mean of 8.47ºC).
2. What should I wear in Nagasaki today?
For today's mild weather in Nagasaki, with temperatures between 14ºC to 17ºC (57.2ºF to 62.6ºF), consider wearing:
- Lightweight sweater or cardigan
- Light jacket (for cooler periods)
- Sun hat (if spending time outdoors)
- Comfortable jeans or slacks
Temperature
Air quality
Satisfactory air quality, minimal pollution, low risk
- CO2 446
- CO 151
- NH3 0
- NO2 9
- O3 71
- PM10 6
- PM25 5
- SO2 3
- CH4 1,404