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:
20°C
68.0°F
°C °F

Condition: Overcast

Pressure: 1,010 hPa

Feel like: 22 °C

Temperature: 20°C

Cloud: 98%

Humidity: 84%

Wind: ENE - 2 km/h

Visibility: 20.12 km

Weather forecast

Sun
14 Jun
20°C / 28°C
Partly Cloudy
Mon
15 Jun
19°C / 28°C
Moderate Drizzle
Tue
16 Jun
21°C / 26°C
Overcast
Wed
17 Jun
22°C / 30°C
Drizzle
Thu
18 Jun
22°C / 30°C
Drizzle Dense Intensity
Hourly forecast today:
17:00 PM
17° / 20°
17° / 20°
Overcast
84% 9 km/h
18:00 PM
17° / 19°
17° / 19°
Partly Cloudy
86% 9 km/h
19:00 PM
16° / 19°
16° / 19°
Partly Cloudy
83% 9 km/h
20:00 PM
16° / 19°
16° / 19°
Partly Cloudy
83% 7 km/h
21:00 PM
15° / 19°
15° / 19°
Overcast
80% 8 km/h
22:00 PM
15° / 19°
15° / 19°
Overcast
76% 9 km/h
23:00 PM
14° / 21°
14° / 21°
Partly Cloudy
67% 9 km/h
00:00 AM
15° / 22°
15° / 22°
Overcast
64% 12 km/h
01:00 AM
16° / 23°
16° / 23°
Overcast
64% 18 km/h
02:00 AM
16° / 24°
16° / 24°
Partly Cloudy
61% 23 km/h
03:00 AM
16° / 25°
16° / 25°
Overcast
57% 28 km/h

30 Day Averages and Extremes

  • Average high 26.2°C
  • Average low 18.77°C
  • Hottest day 30°C (17 June 2026)
  • Coldest day 0°C (27 June 2026)
  • Average humidity 73.53%
  • Days with precipitation 25 days
  • Highest precipitation 93 mm (01 June 2026)

Yesterday's Data

  • Max: 27°C
  • Min: 17°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 25ºC (77.0ºF), consider wearing:
- UV-protective sunglasses
- Sunscreen for skin protection
- Lightweight t-shirt or tank top
- Breathable shorts or skirts

Temperature

Early
14°C / 26°C
Morning
15°C / 25°C
Afternoon
18°C / 20°C
Evening
15°C / 19°C

Air quality

Moderate

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

  • CO2 504
  • CO 252
  • NH3 0
  • NO2 29
  • O3 31
  • PM10 29
  • PM25 26
  • SO2 4
  • CH4 1,939

Sunrise / Sunset

20:08
10:26