Nagasaki, Japan Weather

  1. Nagasaki, Japan Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Nagasaki over the next 12 hours
  7. Temperature and possibility of rain in Nagasaki in the coming days
  8. Rainfall in Nagasaki in the coming days
  9. Nagasaki Weather Summary
  10. Weather averages by month
  11. Nagasaki's weather
  12. Frequently asked questions
  13. Comments
Nagasaki, Weather
(Photo by Sora Sagano on Unsplash)

Current conditions

Updated:
31°C
87.8°F
°C °F

Condition: Mainly Clear

Pressure: 1,004 hPa

Feel like: 36 °C

Temperature: 31°C

Cloud: 23%

Humidity: 66%

Wind: ENE - 7 km/h

Visibility: 35.1 km

Weather forecast

Thu
06 Aug
29°C / 34°C
Overcast
Fri
07 Aug
28°C / 33°C
Drizzle
Sat
08 Aug
26°C / 33°C
Overcast
Sun
09 Aug
26°C / 35°C
Overcast
Mon
10 Aug
25°C / 28°C
Slight Rain Showers
Hourly forecast today:
01:00 AM
24° / 31°
24° / 31°
Mainly Clear
66% 30 km/h
02:00 AM
24° / 33°
24° / 33°
Clear Sky
59% 32 km/h
03:00 AM
23° / 34°
23° / 34°
Clear Sky
52% 31 km/h
04:00 AM
23° / 35°
23° / 35°
Clear Sky
49% 32 km/h
05:00 AM
23° / 36°
23° / 36°
Clear Sky
46% 27 km/h
06:00 AM
24° / 36°
24° / 36°
Clear Sky
49% 23 km/h
07:00 AM
24° / 36°
24° / 36°
Clear Sky
51% 16 km/h
08:00 AM
23° / 35°
23° / 35°
Clear Sky
50% 15 km/h
09:00 AM
23° / 35°
23° / 35°
Clear Sky
51% 16 km/h
10:00 AM
23° / 34°
23° / 34°
Clear Sky
54% 15 km/h
11:00 AM
23° / 32°
23° / 32°
Clear Sky
60% 21 km/h

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: 36°C
  • Min: 27°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

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:
- Lightweight, loose-fitting shorts
- Light, natural fabrics (like cotton or linen)
- Ultra-thin, breathable socks
- High SPF sunscreen for outdoor activities

Temperature

Early
23°C / 34°C
Morning
23°C / 35°C
Afternoon
22°C / 29°C
Evening
23°C / 28°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 444
  • CO 157
  • NH3 0
  • NO2 2
  • O3 121
  • PM10 10
  • PM25 8
  • SO2 7
  • CH4 1,464

Sunrise / Sunset

20:37
10:15