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:
26°C
78.8°F
°C °F

Condition: Clear Sky

Pressure: 968 hPa

Feel like: 30 °C

Temperature: 26°C

Cloud: 2%

Humidity: 56%

Wind: ESE - 6 km/h

Visibility: 19.36 km

Weather forecast

Wed
05 Aug
22°C / 30°C
Drizzle
Thu
06 Aug
23°C / 30°C
Slight Thunderstorm
Fri
07 Aug
20°C / 30°C
Thunderstorm With Slight
Sat
08 Aug
19°C / 27°C
Slight Thunderstorm
Sun
09 Aug
18°C / 29°C
Overcast
Hourly forecast today:
04:00 AM
16° / 26°
16° / 26°
Clear Sky
56% 15 km/h
05:00 AM
16° / 26°
16° / 26°
Clear Sky
53% 17 km/h
06:00 AM
16° / 27°
16° / 27°
Clear Sky
53% 16 km/h
07:00 AM
16° / 26°
16° / 26°
Clear Sky
54% 15 km/h
08:00 AM
17° / 25°
17° / 25°
Clear Sky
58% 15 km/h
09:00 AM
17° / 24°
17° / 24°
Clear Sky
66% 15 km/h
10:00 AM
18° / 22°
18° / 22°
Clear Sky
75% 11 km/h
11:00 AM
16° / 21°
16° / 21°
Clear Sky
72% 11 km/h
12:00 PM
16° / 21°
16° / 21°
Clear Sky
76% 7 km/h
13:00 PM
16° / 20°
16° / 20°
Clear Sky
78% 7 km/h
14:00 PM
16° / 19°
16° / 19°
Clear Sky
84% 7 km/h

30 Day Averages and Extremes

  • Average high 28.6°C
  • Average low 20.6°C
  • Hottest day 34°C (20 July 2026)
  • Coldest day 17°C (10 August 2026)
  • Average humidity 82.93%
  • Days with precipitation 30 days
  • Highest precipitation 72 mm (23 July 2026)

Yesterday's Data

  • Max: 27°C
  • Min: 18°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 very hot weather in Gumma, with the high temperatures above 27ºC (80.6ºF), consider wearing:
- Wide-brimmed sun hat
- Lightweight t-shirt or tank top
- Open-toed sandals or light sneakers
- Sunscreen for skin protection

Temperature

Early
17°C / 25°C
Morning
17°C / 24°C
Afternoon
16°C / 18°C
Evening
16°C / 18°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 429
  • CO 117
  • NH3 0
  • NO2 1
  • O3 87
  • PM10 13
  • PM25 9
  • SO2 5
  • CH4 1,384

Sunrise / Sunset

19:53
09:47