It was great. From Hosooka Station, it was about 7 kilometers by car to Iwahoki Water Gate, which took about 70 minutes. Then I took a taxi back to Hosooka Station, which took about 20 minutes. The whole trip took about an hour and a half. Along the way, I saw deer, eagles, and just before going ashore, I even saw a fox.
Anonymous User
Couple
Kawayu Onsen Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Kawayu Onsen year round climate
Spring (March–May): Average 38–58°F, cool climate with occasional rainfall, increasing rainfall from March to May. Common activities: Flower viewing, hiking (consider weather changes). Recommended clothing: Warm jacket, long-sleeved clothing, waterproof jacket.
Summer (June–August): Average 67–78°F, hot and rainy, with July being the rainiest month. Common activities: Summer resort, playing in the streams (pay attention to safety). Recommended clothing: Light and breathable clothing, rain gear.
Autumn (September–November): Average 46–71°F, comfortable climate, less rainfall. Common activities: Maple viewing, hot springs. Recommended clothing: Light jacket, long-sleeved clothing.
Winter (December–February): Average -32–34°F, cold climate, higher chance of snowfall, higher rainfall. Common activities: Skiing, hot springs. Recommended clothing: Warm clothing, thick jacket, snow boots.
Kawayu Onsen climatological average
Annual average temperature: approx. 53.1°F / Annual rainfall: approx. 2277 mm / Summer humidity: 70%–80% / Rainiest month: July
Kawayu Onsen monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
31.3°F
209.4
February
32.7°F
114.6
March
38.1°F
137.5
April
51.1°F
93.8
May
58.8°F
112.5
June
67.6°F
219.9
July
76.6°F
403.5
August
78.8°F
216.9
September
71.8°F
127.9
October
56.8°F
126.4
November
46.4°F
196.5
December
34.9°F
318.6
Kawayu Onsen weather for the next seven days
5/25
Monday
Partly Cloudy
73.2°F/51.1°F
5/26
Tuesday
Partly Cloudy
73.1°F/56.4°F
5/27
Wednesday
Patchy rain nearby
79.2°F/57.4°F
5/28
Thursday
Moderate rain
68.4°F/61°F
5/29
Friday
Moderate rain
64.6°F/50.9°F
5/30
Saturday
Patchy rain nearby
68.7°F/49.8°F
5/31
Sunday
Sunny
67.8°F/50.2°F
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