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Gunma
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![<July to September> [Minakami, Gunma] Half-day canyoning course! Enjoy nature's theme park! [Youth discount] available (^o^)丿](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_556246/20251208121452_w0OvM/png)
![<Beginner Hike> Easy day trip! Hike around Oze with a guide, approximately 5 hours stay [Departing from Tokyo]](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_570929/20260126061047_xj73T/png)
![[Gunma, Minakami] Half-day intermediate canyoning course ♪ Experience the longest water slide in the water area, 40 meters! [Drinks included]](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_554791/20251208075533_i5Wjn/png)
![[Gunma, Minakami] Half-day snowshoeing course! Safe even for beginners ♪ Ages 4 and up! ★ Popular with families, couples, and women ★ Have fun in the snow!](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_556216/20251208120943_stAvG/png)
![[Gunma, Minakami] One-day snowshoeing plan ◆ Participants must be junior high school students or older! ★ Popular with families, couples, and women ★ Enjoy the snow all day long ♪ Lunch included](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_556215/20251208120943_1vbMN/png)
![[Gunma / Minakami] One day lunch included ♪ Great value happy pack for rafting and hydrospeed!](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_555990/20251208113154_nKnVh/png)
![[Gunma / Minakami] One day lunch included ♪ A great value happy pack of the popular hydrospeed and canyoning!](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_555989/20251208113153_Y9Jzk/png)
![<July to October> [Minakami, Gunma] Half-day rafting course! Playing in the Tone River! [Youth discount] available (^o^)丿](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_555505/20251208100410_DYwjH/png)
![[Gunma, Minakami, Snowshoeing] Easy and enjoyable snow hiking! (Half day)](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_569177/20251223104307_GCISf/png)
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Gunma Weather, Climate and Best Time to Visit
Data source：Meteostat
Update date：2025-09
Gunma year round climate
- Spring (March–May): Average 44–60°F, the climate gradually changes from cold to warm, with increasing rainfall. March and April may still experience cold snaps. Common activities: cherry blossom viewing, hiking, hot spring trips. Recommended clothing: light jacket, long-sleeved shirt, add warm clothing in the mornings and evenings.
- Summer (June–August): Average 68–79°F, warm and humid climate, abundant rainfall, and frequent afternoon thunderstorms. Common activities: mountain hiking, water activities, sightseeing in summer resorts. Recommended clothing: light and breathable clothing, short sleeves, shorts, bring rain gear.
- Autumn (September–November): Average 49–74°F, pleasant and comfortable climate, changing from warm to cool, with decreasing rainfall. Common activities: maple leaf viewing, hiking, hot spring trips. Recommended clothing: long-sleeved shirt, light jacket, add warm clothing in the mornings and evenings.
- Winter (December–February): Average 33–40°F, cold and dry climate, low rainfall. Common activities: skiing, hot spring experiences. Recommended clothing: warm coat, sweater, scarf, gloves, hat.
Gunma climatological average
Annual average temperature: approx. 56.5°F / Annual rainfall: approx. 1323 mm / Summer humidity: 70%–80% / Rainiest month: August
Gunma monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
33.6°F
23.6
February
35.8°F
45.3
March
44.1°F
93.5
April
54.5°F
112.1
May
60.6°F
163.8
June
68.7°F
182.5
July
77.4°F
174.2
August
79.5°F
188.3
September
74.5°F
183.4
October
59°F
78
November
49.3°F
57.6
December
40.1°F
21
Gunma weather for the next seven days
3/19
Thursday
Patchy rain nearby
54.2°F/39.8°F
3/20
Friday
Partly Cloudy
50.8°F/32.6°F
3/21
Saturday
Sunny
53.6°F/30.4°F
3/22
Sunday
Sunny
58.5°F/32°F
3/23
Monday
Sunny
63.7°F/36.2°F
3/24
Tuesday
Sunny
52.2°F/34.6°F
3/25
Wednesday
Sunny
56°F/29.8°F
