It was a very convenient experience from start to finish—booking was easy, and the group chat before arrival made coordination seamless. Communication with the driver was straightforward, and they ensured a safe and smooth drop-off at our hotel. The service offered great value for the price, especially considering the comfort and reliability. Highly recommended for hassle-free airport transfers.
Anonymous User
Family
Koshinetsu Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Koshinetsu year round climate
Spring (March–May): Average 10.5–19.3°C, mild climate but with relatively high rainfall, especially abundant in April and May. Common activities: Spring outings, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt, rain gear essential.
Summer (June–August): Average 23.7–29.5°C, hot and humid, frequent rainfall. Common activities: Sightseeing in summer resorts, water activities (such as river rafting, please pay attention to safety). Recommended clothing: Light and breathable clothing, sun hat, rain gear.
Autumn (September–November): Average 19.1–27.1°C, comfortable and pleasant climate, rainfall gradually decreasing. Common activities: Maple viewing, mountain hiking. Recommended clothing: Light jacket, long-sleeved shirt.
Winter (December–February): Average 5.1–7.2°C, cold and dry, low rainfall. Common activities: Skiing, onsen experience. Recommended clothing: Warm jacket, beanie, gloves, scarf.
Koshinetsu climatological average
Annual average temperature: approx. 17°C / Annual rainfall: approx. 1656 mm / Summer humidity: 70%–80% / Rainiest month: August
Koshinetsu monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
5.1°C
47.4
February
6.1°C
72.5
March
10.5°C
131.3
April
16.4°C
182.2
May
19.3°C
199.8
June
23.7°C
248.8
July
28.9°C
176
August
29.5°C
254.7
September
27.1°C
127.3
October
19.1°C
105.2
November
13.9°C
91.9
December
7.2°C
19.2
Koshinetsu weather for the next seven days
5/10
Sunday
Sunny
22.3°C/8.5°C
5/11
Monday
Partly Cloudy
24.1°C/11.4°C
5/12
Tuesday
Sunny
24.4°C/12.2°C
5/13
Wednesday
Sunny
24.5°C/12°C
5/14
Thursday
Patchy rain nearby
25.6°C/12.6°C
5/15
Friday
Sunny
26°C/12°C
5/16
Saturday
Sunny
29.3°C/15.6°C
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