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:
22°C
71.6°F
°C °F

Condition: Mainly Clear

Pressure: 1,006 hPa

Feel like: 25 °C

Temperature: 22°C

Cloud: 36%

Humidity: 83%

Wind: N - 3 km/h

Visibility: 17.36 km

Weather forecast

Mon
22 Jun
19°C / 20°C
Heavy Rain
Tue
23 Jun
21°C / 25°C
Slight Thunderstorm
Wed
24 Jun
20°C / 26°C
Slight Thunderstorm
Thu
25 Jun
21°C / 28°C
Moderate Drizzle
Fri
26 Jun
18°C / 26°C
Drizzle
Hourly forecast today:
16:00 PM
19° / 22°
19° / 22°
Mainly Clear
83% 9 km/h
17:00 PM
17° / 21°
17° / 21°
Partly Cloudy
78% 9 km/h
18:00 PM
16° / 21°
16° / 21°
Partly Cloudy
75% 9 km/h
19:00 PM
16° / 20°
16° / 20°
Partly Cloudy
75% 9 km/h
20:00 PM
16° / 20°
16° / 20°
Partly Cloudy
78% 8 km/h
21:00 PM
16° / 20°
16° / 20°
Overcast
79% 10 km/h
22:00 PM
17° / 21°
17° / 21°
Mainly Clear
78% 10 km/h
23:00 PM
18° / 22°
18° / 22°
Partly Cloudy
75% 14 km/h
00:00 AM
18° / 23°
18° / 23°
Partly Cloudy
72% 15 km/h
01:00 AM
18° / 24°
18° / 24°
Mainly Clear
68% 16 km/h
02:00 AM
18° / 26°
18° / 26°
Partly Cloudy
62% 20 km/h

30 Day Averages and Extremes

  • Average high 25.8°C
  • Average low 20.4°C
  • Hottest day 29°C (29 June 2026)
  • Coldest day 16°C (09 June 2026)
  • Average humidity 83.7%
  • Days with precipitation 26 days
  • Highest precipitation 92 mm (18 June 2026)

Yesterday's Data

  • Max: 27°C
  • Min: 23°C
  • Total Precipitation: 2 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 28ºC (82.4ºF), consider wearing:
- Breathable shorts or skirts
- Open-toed sandals or light sneakers
- Loose and airy fabrics like linen or cotton
- Sunscreen for skin protection

Temperature

Early
20°C / 27°C
Morning
21°C / 25°C
Afternoon
20°C / 22°C
Evening
16°C / 20°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 475
  • CO 178
  • NH3 0
  • NO2 14
  • O3 52
  • PM10 17
  • PM25 16
  • SO2 3
  • CH4 1,727

Sunrise / Sunset

20:09
10:28