A very fulfilling day trip! We met early in Shinjuku, making the trip convenient and easy. We then took a bus to Lake Yamanaka, Mt. Fuji, to ride a swan boat. The scenery of Lake Yamanaka was absolutely beautiful. The itinerary was well-planned, with just the right amount of time spent at each stop. I was very lucky to see Mt. Fuji with its "hat" (referring to its distinctive shape), as this was the first time I'd seen the complete Mt. Fuji from so many visits. We went up to the 5th station. Remember to bring a windproof jacket! The view of Mt. Fuji from the Oishi Park direction was stunning. We also had a delicious lavender ice cream. I highly recommend this trip. Our guide, Ms. Feng, provided detailed and clear explanations. I recommend this trip for families or independent travelers to include a day trip in your itinerary.
You can go bobsleighing. It's a bit pricey, though. It's quite long with sharp curves, and you can adjust the speed, so even children can enjoy it. The Edelweiss restaurant also has a dining area for people with dogs, so it was reassuring for those bringing their dogs.
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
8/18
Tuesday
Overcast
31.9°C/23.4°C
8/19
Wednesday
Overcast
34°C/23.3°C
8/20
Thursday
Patchy rain nearby
34.1°C/24.5°C
8/21
Friday
Overcast
35.9°C/24.8°C
8/22
Saturday
Sunny
34.7°C/24.8°C
8/23
Sunday
Sunny
34.9°C/25°C
8/24
Monday
Light rain shower
32.6°C/25.3°C
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