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:
28°C
82.4°F
°C °F

Condition: Partly Cloudy

Pressure: 999 hPa

Feel like: 31 °C

Temperature: 28°C

Cloud: 73%

Humidity: 67%

Wind: ENE - 12 km/h

Visibility: 31.96 km

Weather forecast

Sun
09 Aug
28°C / 31°C
Overcast
Mon
10 Aug
25°C / 31°C
Moderate Drizzle
Tue
11 Aug
22°C / 32°C
Mainly Clear
Wed
12 Aug
23°C / 30°C
Drizzle
Thu
13 Aug
24°C / 28°C
Slight Rain Showers
Hourly forecast today:
15:00 PM
21° / 28°
21° / 28°
Partly Cloudy
67% 37 km/h
16:00 PM
21° / 28°
21° / 28°
Partly Cloudy
67% 32 km/h
17:00 PM
21° / 28°
21° / 28°
Partly Cloudy
68% 29 km/h
18:00 PM
21° / 27°
21° / 27°
Partly Cloudy
70% 30 km/h
19:00 PM
22° / 27°
22° / 27°
Partly Cloudy
71% 32 km/h
20:00 PM
22° / 27°
22° / 27°
Partly Cloudy
72% 32 km/h
21:00 PM
22° / 27°
22° / 27°
Partly Cloudy
72% 34 km/h
22:00 PM
22° / 27°
22° / 27°
Overcast
74% 35 km/h
23:00 PM
23° / 28°
23° / 28°
Partly Cloudy
74% 36 km/h
00:00 AM
23° / 28°
23° / 28°
Partly Cloudy
73% 34 km/h
01:00 AM
23° / 29°
23° / 29°
Partly Cloudy
71% 33 km/h

30 Day Averages and Extremes

  • Average high 30.23°C
  • Average low 24.43°C
  • Hottest day 36°C (05 August 2026)
  • Coldest day 0°C (22 August 2026)
  • Average humidity 74.57%
  • Days with precipitation 22 days
  • Highest precipitation 52 mm (04 August 2026)

Yesterday's Data

  • Max: 34°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 31ºC (87.8ºF), consider wearing:
- Light, natural fabrics (like cotton or linen)
- High SPF sunscreen for outdoor activities
- Broad-brimmed sun hat
- UV-blocking sunglasses

Temperature

Early
24°C / 34°C
Morning
23°C / 31°C
Afternoon
21°C / 28°C
Evening
22°C / 27°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 447
  • CO 88
  • NH3 0
  • NO2 2
  • O3 36
  • PM10 9
  • PM25 6
  • SO2 1
  • CH4 1,345

Sunrise / Sunset

20:39
10:12