The whole day's itinerary was very fulfilling and enriching. Our tour guide, Helen, was very experienced, gentle, and attentive to every member of the group. Her service was excellent, and I was extremely satisfied. 100/100!
Due to the itinerary, we went straight to Karuizawa on the first day and didn't realize that the Tokyo Wide Pass I bought on KKDay could only be redeemed for physical tickets at Narita, Tokyo, and Shinjuku stations. I am grateful to KKDay customer service for their assistance in canceling the ticket (after deducting a 10% handling fee).
Driver has waiting for us at the road side and communicate through social application makes it convenient and smooth service
Anonymous User
Friend
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
8/8
Saturday
Patchy rain nearby
32.6°C/21.8°C
8/9
Sunday
Sunny
32.7°C/20.7°C
8/10
Monday
Patchy rain nearby
29.8°C/18.7°C
8/11
Tuesday
Partly Cloudy
26.4°C/17.1°C
8/12
Wednesday
Light rain shower
23.4°C/18.2°C
8/13
Thursday
Patchy rain nearby
28.5°C/18.5°C
8/14
Friday
Patchy rain nearby
27.5°C/20.3°C
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