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Kusatsu

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Kusatsu Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Kusatsu year round climate

  • Spring (March–May): Average 50–66°F, 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 74–85°F, 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 66–80°F, 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 41–44°F, 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. 62.6°F / Annual rainfall: approx. 1603 mm / Summer humidity: 70%–80% / Rainiest month: August

Kusatsu monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
41.2°F
47.4
February
43°F
54
March
50.9°F
117.5
April
61.5°F
161.4
May
66.7°F
199.8
June
74.7°F
248.8
July
84°F
176
August
85.1°F
254.7
September
80.8°F
127.3
October
66.4°F
105.2
November
57°F
91.9
December
45°F
19.2

Kusatsu weather for the next seven days

3/14
Saturday
Partly Cloudy
51.7°F/37.1°F
3/15
Sunday
Partly Cloudy
52.6°F/38.2°F
3/16
Monday
Sunny
52.9°F/36.5°F
3/17
Tuesday
Partly Cloudy
58.2°F/37.4°F
3/18
Wednesday
Patchy rain nearby
64°F/42.3°F
3/19
Thursday
Patchy rain nearby
51.5°F/44.1°F
3/20
Friday
Patchy rain nearby
53.1°F/45.9°F

Kusatsu Frequently Asked Questions and Useful Information for Travel

Is Kusatsu worth visiting?

Even if you're not an avid hot spring tourist, Kusatsu is worth a visit for its historical and traditional value. It is also a great place to wind down with friends after an exciting skiing trip at one of the nearby slopes in the winter.

What is Kusatsu famous for?

Kusatsu is recognized along with Gero and Arima as one of Japan's three most famous hot spring resorts. The Yubatake (Hot Water field) is a central meeting and sightseeing spot in Kusatsu Onsen. It's quite a unique sight to see the pools and river steaming away, offering a refreshing break from the usual hustle of tourist towns.

How do I go from Tokyo to Kusatsu?

Take the Hokuriku Shinkansen from Tokyo to Karuizawa and then a Kusakaru Kotsu bus from Karuizawa to Kusatsu Onsen.

What is the closest airport to Kusatsu Onsen?

While Matsumoto Airport is the closest, a more convenient option for reaching Kusatsu Onsen from Tokyo is to take the Hokuriku Shinkansen to Karuizawa and then transfer to a bus. For those arriving from further afield, consider flying into Haneda or Narita and then taking a train to Kusatsu Onsen.

What are the main attractions in Kusatsu?

The Yubatake, or 'Hot Water Field,' is the iconic heart of Kusatsu Onsen, where steaming hot spring water flows. Visitors can also explore the various outdoor and indoor hot spring baths, enjoy scenic walks around the town, and experience the traditional atmosphere of this renowned hot spring resort.