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Kusatsu City

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Kusatsu City Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Kusatsu City year round climate

  • Spring (March–May): Average 10.5–19.3°C, the climate shifts from cool to warm, with increasing rainfall. Common activities: Hiking, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
  • Summer (June–August): Average 23.7–29.5°C, hot and humid, with higher rainfall. Common activities: Swimming, water activities, resort travel. Recommended clothing: Light and breathable clothing, short sleeves, sun protection clothing.
  • Autumn (September–November): Average 19.1–27.1°C, pleasant and comfortable climate, with decreased rainfall. Common activities: Maple viewing, outdoor excursions. Recommended clothing: Light jacket, long-sleeved shirt.
  • Winter (December–February): Average 5.1–7.2°C, cold and dry, with low rainfall. Common activities: Hot spring experiences, indoor activities. Recommended clothing: Warm clothing, thick jacket, scarf, gloves.

Kusatsu City climatological average

Annual average temperature: approx. 17.2°C / Annual rainfall: approx. 1603 mm / Summer humidity: 70%–80% / Rainiest month: August

Kusatsu City 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 City weather for the next seven days

1/8
Thursday
Patchy rain nearby
5.3°C/1°C
1/9
Friday
Patchy rain nearby
6.8°C/0.8°C
1/10
Saturday
Patchy rain nearby
10.4°C/0.8°C
1/11
Sunday
Patchy rain nearby
3.2°C/-1.5°C
1/12
Monday
Patchy rain nearby
4.6°C/-1.3°C
1/13
Tuesday
Partly Cloudy
11.3°C/2.4°C
1/14
Wednesday
Patchy rain nearby
13.4°C/6°C

Kusatsu City Frequently Asked Questions and Useful Information for Travel

What is Kusatsu City famous for?

Kusatsu is renowned as one of Japan's premier onsen towns. This charming area features many ryokan inns, preserving an authentic Japanese ambiance. At its heart lies the Yubatake, the town's spring source, which continuously releases large volumes of steaming, mineral-rich hot spring water.

Is Kusatsu City a city?

Yes, Kusatsu is a city. While there is a Kusatsu City in Shiga Prefecture, the famous onsen destination is often referred to simply as Kusatsu and is located in Gunma Prefecture.

Is Kusatsu City worth visiting?

Kusatsu City is definitely worth visiting, even for those who are not avid hot spring enthusiasts. It offers significant historical and traditional value, making it a wonderful place to relax and unwind. It's also an excellent destination to visit after a day of skiing at nearby slopes, providing a perfect way to rejuvenate.

What can I do in Kusatsu City?

In Kusatsu City, you can experience the therapeutic benefits of its famous hot springs, explore the central Yubatake to see the spring water flow, and enjoy the traditional atmosphere of the onsen town. The area also offers opportunities for outdoor activities like skiing in the winter.

What is the population of Kusatsu City?

The population of Kusatsu City in Gunma Prefecture is approximately 30,000 people. This count reflects the residents of the well-known onsen resort area, distinct from the city of Kusatsu in Shiga Prefecture.