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:
12°C
53.6°F
°C °F

Condition: Partly Cloudy

Pressure: 1,017 hPa

Feel like: 11 °C

Temperature: 12°C

Cloud: 67%

Humidity: 77%

Wind: N - 2 km/h

Visibility: 24.14 km

Weather forecast

Mon
19 Jan
6°C / 11°C
Overcast
Tue
20 Jan
4°C / 8°C
Overcast
Wed
21 Jan
2°C / 4°C
Overcast
Thu
22 Jan
3°C / 7°C
Overcast
Fri
23 Jan
4°C / 8°C
Overcast
Hourly forecast today:
15:00 PM
8° / 12°
8° / 12°
Partly Cloudy
77% 4 km/h
16:00 PM
8° / 12°
8° / 12°
Overcast
77% 5 km/h
17:00 PM
8° / 11°
8° / 11°
Overcast
78% 7 km/h
18:00 PM
8° / 11°
8° / 11°
Overcast
78% 7 km/h
19:00 PM
8° / 11°
8° / 11°
Overcast
79% 7 km/h
20:00 PM
8° / 11°
8° / 11°
Overcast
80% 5 km/h
21:00 PM
8° / 11°
8° / 11°
Overcast
81% 5 km/h
22:00 PM
8° / 11°
8° / 11°
Overcast
80% 5 km/h
23:00 PM
8° / 11°
8° / 11°
Overcast
79% 5 km/h
00:00 AM
8° / 11°
8° / 11°
Overcast
78% 6 km/h
01:00 AM
8° / 11°
8° / 11°
Slight Rain
78% 6 km/h

30 Day Averages and Extremes

  • Average high 9.3°C
  • Average low 2.2°C
  • Hottest day 16°C (15 January 2026)
  • Coldest day -2°C (11 January 2026)
  • Average humidity 64.3%
  • Days with precipitation 19 days
  • Highest precipitation 38 mm (23 January 2026)

Yesterday's Data

  • Max: 15°C
  • Min: 5°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 cool weather in Kumamoto, with temperatures between 9ºC to 12ºC (48.2ºF to 53.6ºF), you should consider wearing:
- Comfortable pants or jeans
- Long-sleeve top or shirt
- Knit hat (optional for cooler mornings)
- Cotton socks

Temperature

Early
1°C / 14°C
Morning
7°C / 13°C
Afternoon
8°C / 12°C
Evening
8°C / 11°C

Air quality

Moderate

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

  • CO2 511
  • CO 541
  • NH3 0
  • NO2 50
  • O3 5
  • PM10 28
  • PM25 27
  • SO2 11
  • CH4 1,619

Sunrise / Sunset

22:18
08:36