Kumamoto, Japan Weather

  1. Kumamoto, Japan Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Kumamoto over the next 12 hours
  7. Temperature and possibility of rain in Kumamoto in the coming days
  8. Rainfall in Kumamoto in the coming days
  9. Kumamoto Weather Summary
  10. Weather averages by month
  11. Kumamoto's weather
  12. Frequently asked questions
  13. Comments
Kumamoto, 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: 37 °C

Temperature: 31°C

Cloud: 26%

Humidity: 66%

Wind: ENE - 5 km/h

Visibility: 11.64 km

Weather forecast

Wed
05 Aug
28°C / 34°C
Mainly Clear
Thu
06 Aug
28°C / 33°C
Drizzle
Fri
07 Aug
27°C / 32°C
Overcast
Sat
08 Aug
26°C / 34°C
Overcast
Sun
09 Aug
25°C / 36°C
Overcast
Hourly forecast today:
10:00 AM
24° / 31°
24° / 31°
Mainly Clear
66% 16 km/h
11:00 AM
24° / 30°
24° / 30°
Mainly Clear
69% 17 km/h
12:00 PM
24° / 30°
24° / 30°
Mainly Clear
70% 28 km/h
13:00 PM
24° / 29°
24° / 29°
Mainly Clear
72% 30 km/h
14:00 PM
23° / 29°
23° / 29°
Mainly Clear
73% 30 km/h
15:00 PM
23° / 28°
23° / 28°
Mainly Clear
75% 34 km/h
16:00 PM
23° / 28°
23° / 28°
Mainly Clear
75% 34 km/h
17:00 PM
23° / 28°
23° / 28°
Mainly Clear
74% 29 km/h
18:00 PM
23° / 27°
23° / 27°
Mainly Clear
75% 19 km/h
19:00 PM
23° / 27°
23° / 27°
Mainly Clear
78% 15 km/h
20:00 PM
23° / 27°
23° / 27°
Clear Sky
79% 11 km/h

30 Day Averages and Extremes

  • Average high 33.37°C
  • Average low 25.23°C
  • Hottest day 38°C (02 August 2026)
  • Coldest day 23°C (30 July 2026)
  • Average humidity 72.1%
  • Days with precipitation 29 days
  • Highest precipitation 45 mm (09 August 2026)

Yesterday's Data

  • Max: 34°C
  • Min: 26°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Kumamoto over the next 12 hours

Temperature and possibility of rain in Kumamoto in the coming days

Rainfall in Kumamoto in the coming days

Kumamoto Climate Summary

Kumamoto features a Humid subtropical, no dry season (Köppen classification: Cfa), with an average annual temperature of 16.81ºC (62.26ºF), which is about 1.62% higher than the national average for Japan. Annually, the city experiences approximately 86.17 millimeters (3.39 inches) of rainfall, spread across 126.74 rainy days, accounting for 34.72% of the year.

Longitude 32.8032164
Latitude 130.7079369
Yearly high temperature 19.53ºC (67.15ºF)
Yearly low temperature 12.34ºC (54.21ºF)
Hottest month August 30.55ºC (86.99ºF)
Coldest month January 1.81ºC (35.26ºF)
Yearly precip 86.17mm (3.39in)
Days with rainfall 126.74 days (34.72%)
Driest month January (73.06%)
Wettest month June (81.5%)

Weather averages by month

Month High / Low (°C) Rain
January 8.44° / 1.81° 5.82 days
February 10.1° / 2.92° 9.0 days
March 13.61° / 5.7° 10.18 days
April 18.23° / 9.77° 9.18 days
May 23.11° / 14.46° 8.73 days
June 25.18° / 18.59° 16.55 days
July 28.55° / 22.32° 18.73 days
August 30.55° / 23.33° 16.82 days
September 27.19° / 20.15° 12.09 days
October 22.43° / 15.01° 5.82 days
November 16.7° / 9.78° 7.27 days
December 10.29° / 4.19° 6.55 days

Kumamoto's weather

Frequently asked questions

1. What is the hottest month in Kumamoto?

August has the highest average monthly temperature (daily mean of 30.55ºC) and January are the coolest (daily mean of 1.81ºC).

2. What should I wear in Kumamoto today?

For today's very hot weather in Kumamoto, with the high temperatures above 36ºC (96.8ºF), consider wearing:
- High SPF sunscreen for outdoor activities
- UV-blocking sunglasses
- Light, natural fabrics (like cotton or linen)
- Sleeveless tops or vests

Temperature

Early
24°C / 34°C
Morning
24°C / 33°C
Afternoon
23°C / 28°C
Evening
23°C / 27°C

Air quality

Moderate

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

  • CO2 458
  • CO 207
  • NH3 0
  • NO2 8
  • O3 89
  • PM10 7
  • PM25 6
  • SO2 12
  • CH4 1,571

Sunrise / Sunset

20:33
10:12