Gumma, Japan Weather

  1. Gumma, Japan Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Gumma over the next 12 hours
  7. Temperature and possibility of rain in Gumma in the coming days
  8. Rainfall in Gumma in the coming days
  9. Gumma Weather Summary
  10. Weather averages by month
  11. Gumma's weather
  12. Frequently asked questions
  13. Comments
Gumma, Weather
(Photo by Sora Sagano on Unsplash)

Current conditions

Updated:
0°C
0°F
°C °F

Condition: Partly Cloudy

Pressure: 973 hPa

Feel like: -2 °C

Temperature: 0°C

Cloud: 77%

Humidity: 74%

Wind: ENE - 3 km/h

Visibility: 24.14 km

Weather forecast

Tue
17 Feb
0°C / 9°C
Partly Cloudy
Wed
18 Feb
-1°C / 5°C
Mainly Clear
Thu
19 Feb
-1°C / 10°C
Partly Cloudy
Fri
20 Feb
-2°C / 5°C
Overcast
Sat
21 Feb
1°C / 9°C
Snow Fall Slight
Hourly forecast today:
20:00 PM
-3° / 0°
-3° / 0°
Partly Cloudy
74% 7 km/h
21:00 PM
-3° / 0°
-3° / 0°
Partly Cloudy
75% 9 km/h
22:00 PM
-4° / 0°
-4° / 0°
Overcast
73% 12 km/h
23:00 PM
-4° / 0°
-4° / 0°
Overcast
70% 16 km/h
00:00 AM
-4° / 0°
-4° / 0°
Overcast
68% 20 km/h
01:00 AM
-4° / 0°
-4° / 0°
Overcast
70% 21 km/h
02:00 AM
-3° / 1°
-3° / 1°
Overcast
74% 22 km/h
03:00 AM
-2° / 1°
-2° / 1°
Overcast
76% 22 km/h
04:00 AM
-2° / 1°
-2° / 1°
Overcast
74% 22 km/h
05:00 AM
-2° / 2°
-2° / 2°
Overcast
70% 21 km/h
06:00 AM
-3° / 2°
-3° / 2°
Overcast
68% 21 km/h

30 Day Averages and Extremes

  • Average high 5.97°C
  • Average low -2.03°C
  • Hottest day 15°C (14 February 2026)
  • Coldest day -7°C (31 January 2026)
  • Average humidity 65.37%
  • Days with precipitation 14 days
  • Highest precipitation 37 mm (10 February 2026)

Yesterday's Data

  • Max: 9°C
  • Min: 2°C
  • Total Precipitation: 0 mm

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

Temperature and possibility of rain in Gumma in the coming days

Rainfall in Gumma in the coming days

Gumma Climate Summary

Gumma features a Humid continental, no dry season, warm summer (Köppen classification: Dfb), with an average annual temperature of 13.22ºC (55.8ºF), which is about -1.97% lower than the national average for Japan. Annually, the city experiences approximately 63.3 millimeters (2.49 inches) of rainfall, spread across 102.74 rainy days, accounting for 28.15% of the year.

Longitude 36.5605388
Latitude 138.8799972
Yearly high temperature 16.56ºC (61.81ºF)
Yearly low temperature 7.59ºC (45.66ºF)
Hottest month August 29.53ºC (85.15ºF)
Coldest month January -3.56ºC (25.59ºF)
Yearly precip 63.3mm (2.49in)
Days with rainfall 102.74 days (28.15%)
Driest month December (65.83%)
Wettest month July (77.86%)

Weather averages by month

Month High / Low (°C) Rain
January 3.85° / -3.56° 5.0 days
February 5.05° / -3.14° 4.64 days
March 9.41° / 0.03° 7.64 days
April 15.03° / 4.51° 8.91 days
May 21.11° / 10.22° 8.36 days
June 23.85° / 14.29° 15.0 days
July 27.82° / 19.0° 16.55 days
August 29.53° / 19.85° 11.64 days
September 24.76° / 15.84° 10.82 days
October 18.58° / 9.96° 6.82 days
November 12.83° / 4.49° 3.91 days
December 6.87° / -0.39° 3.45 days

Gumma's weather

Frequently asked questions

1. What is the hottest month in Gumma?

August has the highest average monthly temperature (daily mean of 29.53ºC) and January are the coolest (daily mean of -3.56ºC).

2. What should I wear in Gumma today?

For today's cold weather in Gumma, with temperatures ranging from -1ºC to 2ºC (30.2ºF to 35.6ºF), you should wear:
- Hat and gloves, particularly for early mornings or evenings
- Wool or thermal socks
- Warm jacket or medium-weight coat
- Closed-toe shoes or boots

Temperature

Early
1°C / 9°C
Morning
0°C / 4°C
Afternoon
-1°C / 2°C
Evening
-3°C / 0°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 0
  • CO 0
  • NH3 0
  • NO2 0
  • O3 0
  • PM10 0
  • PM25 0
  • SO2 0
  • CH4 0

Sunrise / Sunset

21:30
08:26