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:
26°C
78.8°F
°C °F

Condition: Overcast

Pressure: 1,010 hPa

Feel like: 31 °C

Temperature: 26°C

Cloud: 100%

Humidity: 88%

Wind: SSE - 7 km/h

Visibility: 2.56 km

Weather forecast

Mon
26 Oct
16°C / 22°C
Mainly Clear
Tue
27 Oct
13°C / 20°C
Clear Sky
Wed
28 Oct
12°C / 21°C
Moderate Drizzle
Thu
29 Oct
17°C / 22°C
Moderate Drizzle
Fri
30 Oct
14°C / 22°C
Overcast
Hourly forecast today:
07:00 AM
24° / 26°
24° / 26°
Overcast
88% 22 km/h
08:00 AM
24° / 26°
24° / 26°
Overcast
88% 16 km/h
09:00 AM
23° / 26°
23° / 26°
Overcast
88% 20 km/h
10:00 AM
24° / 25°
24° / 25°
Slight Rain
93% 25 km/h
11:00 AM
23° / 25°
23° / 25°
Moderate Rain
93% 19 km/h
12:00 PM
23° / 24°
23° / 24°
Moderate Rain
94% 18 km/h
13:00 PM
23° / 24°
23° / 24°
Moderate Rain
94% 18 km/h
14:00 PM
23° / 24°
23° / 24°
Moderate Rain
93% 20 km/h
15:00 PM
23° / 24°
23° / 24°
Heavy Rain
93% 18 km/h
16:00 PM
23° / 24°
23° / 24°
Heavy Rain
94% 27 km/h
17:00 PM
23° / 24°
23° / 24°
Heavy Rain
94% 34 km/h

30 Day Averages and Extremes

  • Average high 22.2°C
  • Average low 16.2°C
  • Hottest day 27°C (16 October 2026)
  • Coldest day 0°C (07 November 2026)
  • Average humidity 72.57%
  • Days with precipitation 24 days
  • Highest precipitation 68 mm (23 October 2026)

Yesterday's Data

  • Max: 27°C
  • Min: 24°C
  • Total Precipitation: 23 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 25ºC (77.0ºF), consider wearing:
- Open-toed sandals or light sneakers
- Wide-brimmed sun hat
- Breathable shorts or skirts
- Loose and airy fabrics like linen or cotton

Temperature

Early
24°C / 26°C
Morning
23°C / 26°C
Afternoon
23°C / 24°C
Evening
24°C / 25°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 447
  • CO 144
  • NH3 0
  • NO2 2
  • O3 46
  • PM10 5
  • PM25 3
  • SO2 1
  • CH4 1,392

Sunrise / Sunset

21:32
08:35