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: Mainly Clear
Pressure: 1,005 hPa
Feel like: 37 °C
Temperature: 30°C
Cloud: 27%
Humidity: 82%
Wind: NNE - 4 km/h
Visibility: 28.66 km
30 Day Averages and Extremes
- Average high 32.37°C
- Average low 25.73°C
- Hottest day 36°C (04 August 2026)
- Coldest day 24°C (23 July 2026)
- Average humidity 76.77%
- Days with precipitation 23 days
- Highest precipitation 49 mm (10 August 2026)
Yesterday's Data
- Max: 33°C
- Min: 26°C
- Total Precipitation: 1 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 very hot weather in Nagasaki, with the high temperatures above 36ºC (96.8ºF), consider wearing:
- Sleeveless tops or vests
- Broad-brimmed sun hat
- Ultra-thin, breathable socks
- Light, natural fabrics (like cotton or linen)
Temperature
Air quality
Unhealthy for Sensitive Groups air quality, health effects possible for sensitive people, general public usually unaffected
- CO2 506
- CO 229
- NH3 0
- NO2 6
- O3 143
- PM10 18
- PM25 17
- SO2 5
- CH4 1,630