Spring (March–May): Average 10.5–19.3°C, mild climate but with relatively high rainfall, especially in April and May. Common activities: Flower viewing, walking in the countryside. Recommended clothing: Light jacket, long-sleeved shirt, rain gear.
Summer (June–August): Average 23.7–29.5°C, hot and humid with relatively high rainfall. Common activities: Swimming, sightseeing in summer resorts. Recommended clothing: Light and breathable clothing, sun hat, rain gear.
Autumn (September–November): Average 19.1–27.1°C, comfortable and pleasant climate with decreasing rainfall. Common activities: Hiking, maple leaf viewing. Recommended clothing: Comfortable long-sleeved shirts, light jacket.
Winter (December–February): Average 5.1–7.2°C, low temperatures, dry and with little rainfall. Common activities: Hot spring experience. Recommended clothing: Warm clothing, thick jacket, scarf and gloves.
Kusatsu climatological average
Annual average temperature: approx. 17°C / Annual rainfall: approx. 1603 mm / Summer humidity: 70%–80% / Rainiest month: August
Kusatsu monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
5.1°C
47.4
February
6.1°C
54
March
10.5°C
117.5
April
16.4°C
161.4
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
Kusatsu weather for the next seven days
12/22
Monday
Patchy rain nearby
8.1°C/4.4°C
12/23
Tuesday
Patchy rain nearby
10.7°C/3.1°C
12/24
Wednesday
Moderate rain
10°C/8.8°C
12/25
Thursday
Patchy rain nearby
12.9°C/6.8°C
12/26
Friday
Patchy rain nearby
4.3°C/0.9°C
12/27
Saturday
Patchy rain nearby
4.5°C/1°C
12/28
Sunday
Partly Cloudy
7.8°C/1.3°C
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