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:
15°C
59.0°F
°C °F

Condition: Clear Sky

Pressure: 970 hPa

Feel like: 15 °C

Temperature: 15°C

Cloud: 15%

Humidity: 87%

Wind: WSW - 4 km/h

Visibility: 13.64 km

Weather forecast

Sun
14 Jun
15°C / 22°C
Overcast
Mon
15 Jun
13°C / 23°C
Drizzle
Tue
16 Jun
12°C / 24°C
Drizzle
Wed
17 Jun
16°C / 23°C
Drizzle
Thu
18 Jun
16°C / 25°C
Drizzle Dense Intensity
Hourly forecast today:
18:00 PM
13° / 15°
13° / 15°
Clear Sky
87% 8 km/h
19:00 PM
13° / 15°
13° / 15°
Clear Sky
87% 8 km/h
20:00 PM
13° / 15°
13° / 15°
Clear Sky
87% 6 km/h
21:00 PM
14° / 16°
14° / 16°
Clear Sky
86% 10 km/h
22:00 PM
15° / 18°
15° / 18°
Clear Sky
82% 11 km/h
23:00 PM
15° / 20°
15° / 20°
Mainly Clear
75% 12 km/h
00:00 AM
16° / 22°
16° / 22°
Overcast
69% 12 km/h
01:00 AM
16° / 22°
16° / 22°
Partly Cloudy
66% 14 km/h
02:00 AM
16° / 23°
16° / 23°
Partly Cloudy
66% 19 km/h
03:00 AM
16° / 23°
16° / 23°
Overcast
66% 22 km/h
04:00 AM
17° / 23°
17° / 23°
Overcast
67% 26 km/h

30 Day Averages and Extremes

  • Average high 22.2°C
  • Average low 14.67°C
  • Hottest day 29°C (29 May 2026)
  • Coldest day 0°C (27 June 2026)
  • Average humidity 77.07%
  • Days with precipitation 26 days
  • Highest precipitation 77 mm (14 June 2026)

Yesterday's Data

  • Max: 25°C
  • Min: 14°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 warm weather in Gumma, with temperatures between 20ºC to 23ºC (68.0ºF to 73.4ºF), you might consider wearing:
- Sunglasses
- Cotton or linen fabrics
- Shorts or lightweight trousers
- Comfortable sandals or sneakers

Temperature

Early
13°C / 24°C
Morning
16°C / 21°C
Afternoon
14°C / 16°C
Evening
14°C / 16°C

Air quality

Moderate

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

  • CO2 553
  • CO 144
  • NH3 0
  • NO2 7
  • O3 46
  • PM10 14
  • PM25 13
  • SO2 0
  • CH4 1,516

Sunrise / Sunset

19:25
10:03