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Gunma
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![<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 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] Beginners from the first grade of elementary school can drive! Buggy experience in the great outdoors (1-day course) Free ride for infants with parents!](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_556044/20251208114021_7gonA/png)
![[Gunma / Minakami] September and October only Half-day canyoning adventure full of nature!](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_554982/20251208082909_zuhz1/png)
![[Gunma, Minakami] Half-day canyoning for groups of 10 or more! Nature-filled adventure! Free tour photos](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_554958/20251208082527_5pzxw/png)
![[Gunma Minakami] Fox Course Canyoning! Junior high school students and above only](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_554680/20251208073439_oYYqz/png)
![[Gunma, Mount Akagi] Nature crafts made with glue guns and natural materials! Parents and children, beginners welcome! Come empty-handed!](https://image.kkday.com/image/get/c_fill%2Ch_153%2Cq_55%2Ct_webp%2Cw_272/s1.kkday.com/product_554553/20251208071115_7A4UF/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 6.7–15.9°C, 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 20.4–26.4°C, 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 9.6–23.6°C, 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 0.9–4.5°C, 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. 13.6°C / Annual rainfall: approx. 1323 mm / Summer humidity: 70%–80% / Rainiest month: August
Gunma monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
0.9°C
23.6
February
2.1°C
45.3
March
6.7°C
93.5
April
12.5°C
112.1
May
15.9°C
163.8
June
20.4°C
182.5
July
25.2°C
174.2
August
26.4°C
188.3
September
23.6°C
183.4
October
15°C
78
November
9.6°C
57.6
December
4.5°C
21
Gunma weather for the next seven days
3/19
Thursday
Patchy rain nearby
12.3°C/4.9°C
3/20
Friday
Partly Cloudy
8.7°C/1.6°C
3/21
Saturday
Sunny
11.9°C/-0.2°C
3/22
Sunday
Partly Cloudy
13.7°C/0.1°C
3/23
Monday
Partly Cloudy
16.9°C/4.8°C
3/24
Tuesday
Sunny
12°C/2.3°C
3/25
Wednesday
Partly Cloudy
13.2°C/-0.1°C
