Best Months to Visit Kusatsu: Weather Guide & Season Tips

Best Months to Visit Kusatsu: Weather Guide & Season Tips

Best Months to Visit Kusatsu: Weather Guide & Season Tips

Kusatsu is a beautiful town located in the Gunma Prefecture of Japan. Nestled in the mountains, it is a popular destination for visitors seeking relaxation in its famous hot springs. When planning a trip to Kusatsu, it is important to consider the weather conditions as they can greatly impact your experience. This weather guide will help you choose the best months to visit Kusatsu based on different seasons and weather factors.

Seasons in Kusatsu

Kusatsu experiences four distinct seasons: spring, summer, autumn, and winter. Each season brings its own unique climate and charm. Here is a breakdown of what to expect in each season:

  • Spring (March to May): Spring in Kusatsu is a beautiful time, with cherry blossoms blooming across the town. The weather is mild and pleasant, with temperatures ranging from 10°C (50°F) to 20°C (68°F). It is a great time for outdoor activities and sightseeing.
  • Summer (June to August): Summers in Kusatsu can be hot and humid, with temperatures ranging from 20°C (68°F) to 30°C (86°F). It is also the rainy season, so be prepared for occasional showers. Despite the heat, summer is a popular time to visit Kusatsu due to the vibrant greenery and festivities.
  • Autumn (September to November): Autumn in Kusatsu is breathtakingly beautiful, with the surrounding mountains covered in vibrant fall foliage. The weather is cool and crisp, with temperatures ranging from 10°C (50°F) to 20°C (68°F). It is an ideal time for nature walks and enjoying the hot springs.
  • Winter (December to February): Winter in Kusatsu is cold, with temperatures dipping below freezing. The town is covered in a blanket of snow, creating a magical winter wonderland. The hot springs are particularly inviting during this time, providing warmth and relaxation. Pack warm clothing and be prepared for icy conditions.

Weather Factors to Consider

When deciding the best time to visit Kusatsu, it's essential to take into account various weather factors. Here are some key factors to consider:


Humidity levels in Kusatsu can vary depending on the season. Summers tend to be more humid with levels often above 70%. Autumn and winter have lower humidity levels, ranging from 40% to 60%. Spring experiences moderate humidity, making it a comfortable season to explore the town.


The temperature in Kusatsu fluctuates throughout the year. Spring and autumn offer mild temperatures, ranging from 10°C (50°F) to 20°C (68°F). Summers can be hot, with temperatures climbing up to 30°C (86°F). Winters are cold, with temperatures dropping below freezing. It is crucial to pack appropriate clothing for the season you plan to visit.


Kusatsu enjoys a good amount of sunshine during the year. Spring and autumn typically have the most favorable weather, with clear skies and ample sunshine. Summers can be cloudy due to the rainy season. Winters experience shorter daylight hours, but when the sun shines, the snow-covered landscape sparkles beautifully.


Rainfall is distributed throughout the year in Kusatsu, but the summer months receive the most rainfall. Be prepared with a waterproof jacket and an umbrella if you plan to visit during this season. Spring and autumn have moderate rainfall, while winter is drier with occasional snowfall.

Best Months to Visit

Based on the weather factors mentioned above, the best months to visit Kusatsu are generally April to June and September to November. These months offer mild temperatures, moderate humidity levels, and clear skies, making them ideal for exploring the town and enjoying the hot springs. However, each season has its unique charm, and your personal preferences should also be considered when planning a visit to Kusatsu.

Month Season Humidity Temperature Sunshine Rain
March Spring Moderate 10°C-15°C (50°F-59°F) Moderate Low
April Spring Moderate 10°C-20°C (50°F-68°F) High Moderate
May Spring Moderate 15°C-25°C (59°F-77°F) High Moderate
June Summer High 20°C-30°C (68°F-86°F) Moderate High
July Summer High 25°C-35°C (77°F-95°F) Moderate High
August Summer High 25°C-35°C (77°F-95°F) Moderate High
September Autumn Moderate 15°C-25°C (59°F-77°F) High Moderate
October Autumn Moderate 10°C-20°C (50°F-68°F) High Moderate
November Autumn Moderate 5°C-15°C (41°F-59°F) Moderate Moderate
December Winter Dry -5°C-5°C (23°F-41°F) Low Low
January Winter Dry -10°C-0°C (14°F-32°F) Low Low
February Winter Dry -5°C-5°C (23°F-41°F) Low Low

Keep in mind that weather patterns may vary from year to year, and it's always a good idea to check the forecast closer to your travel dates for the most up-to-date information.

Now that you have a comprehensive weather guide for Kusatsu, you can plan your trip accordingly and make the most of your visit to this charming mountain town.