The journey was convenient, the meeting point was easy to find, communication with the tour leader was easy, and they spoke excellent English. All the tourist spots were covered, and the itinerary wasn't too packed.
Elsa, our tour guide, is very attentive and see to the needs of everyone in the group. Highly recommend to take the chairlift ride to top of Mt. Omuro (lift ticket is included in this tour package but offered as an option on others). Wish we had a bit more time at the Kinosaki Coast. The view is magnificent. Marin Town is a nice rest stop with shops for food, sweets, souvenirs, and local products. Great to grab some refreshments before the 2.5 hours ride back to Shinjuku.
Anonymous User
Solo traveler
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
6/28
Sunday
Patchy rain nearby
24.7°C/18.8°C
6/29
Monday
Patchy rain nearby
30°C/17.8°C
6/30
Tuesday
Patchy rain nearby
30.6°C/19.8°C
7/1
Wednesday
Partly Cloudy
27.8°C/21.4°C
7/2
Thursday
Patchy rain nearby
27.9°C/19.9°C
7/3
Friday
Sunny
26°C/17.5°C
7/4
Saturday
Sunny
24.2°C/17.1°C
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