The minibus went directly from Atami to Mt. Omuro, which was great because there were no transfers. I was really lucky to see the snow-capped Mount Fuji for the first time from Mt. Omuro. The tour guide was very nice and spoke excellent Chinese, Korean, English, and Japanese, but he seemed more like a driver than a guide. I highly recommend this trip!
KKDay's shuttle service was excellent. Because of rain that evening, our itinerary changed, and we were worried about missing the bus. We inquired about changing the time, and they responded promptly, which was great. They even allowed us to change the time, which we greatly appreciated. However, other aspects of KKDay's service were terrible. For example, we never received our JR train tickets, and customer service didn't respond. My family called KKDay's customer service from Taiwan at 7 AM the next morning, and they only said the voucher had been sent, but we hadn't received it in the app or via email (including spam). This severely disrupted our plans for the day. Because of this experience, we will never use KKDay again. However, this shuttle service experience was excellent, and I highly recommend it!
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
5/14
Thursday
Sunny
25.1°C/12.5°C
5/15
Friday
Sunny
26.2°C/12.2°C
5/16
Saturday
Sunny
26.8°C/13.3°C
5/17
Sunday
Sunny
27.2°C/13.3°C
5/18
Monday
Sunny
28.9°C/12.3°C
5/19
Tuesday
Sunny
30.5°C/14.4°C
5/20
Wednesday
Partly Cloudy
27.3°C/18.4°C
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