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).
Although this wasn't our first time booking airport transfers, we still found it very convenient. We didn't have to worry about how to get to our accommodation after landing, and the driver didn't chatter around, which allowed us to rest a bit, which was great.
Anonymous User
Family
Yamanashi Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Yamanashi year round climate
Spring (March–May): Average 11.3–19.1°C, mild climate but with relatively heavy rainfall, especially frequent in April and May. Common activities: Flower viewing, hiking (be aware of changing weather conditions). Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
Summer (June–August): Average 22.8–28.2°C, hot and humid, occasional thunderstorms. Common activities: Hot spring bathing, outdoor swimming, appreciating Mount Fuji views. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
Autumn (September–November): Average 19.3–14.9°C, cool and comfortable, more rainfall in September, drier weather after October. Common activities: Viewing autumn leaves, fruit picking. Recommended clothing: Light jacket, long-sleeved shirt.
Winter (December–February): Average 9.0–7.3°C, cold and dry, occasional snowfall. Common activities: Skiing, hot spring therapy. Recommended clothing: Warm jacket, hat, gloves, scarf.
Yamanashi climatological average
Annual average temperature: approx. 17°C / Annual rainfall: approx. 1490 mm / Summer humidity: 70%–80% / Rainiest month: September
Yamanashi monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
6.4°C
27.7
February
7.3°C
60.7
March
11.3°C
126.3
April
16.1°C
148.9
May
19.1°C
194.4
June
22.8°C
232.7
July
28.2°C
116.7
August
28.2°C
132.8
September
26.1°C
245.9
October
19.3°C
107
November
14.9°C
69
December
9°C
27.8
Yamanashi weather for the next seven days
8/8
Saturday
Sunny
34.3°C/24°C
8/9
Sunday
Sunny
33.2°C/23.5°C
8/10
Monday
Partly Cloudy
30.4°C/23.4°C
8/11
Tuesday
Partly Cloudy
25.4°C/21.2°C
8/12
Wednesday
Patchy rain nearby
28.4°C/21.1°C
8/13
Thursday
Patchy rain nearby
30.2°C/22.7°C
8/14
Friday
Mist
28.1°C/23°C
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