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Kusatsu weather by month
Check out Kusatsu weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Kusatsu (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 0 |
0 |
4 |
12 |
17 |
19 |
23 |
25 |
20 |
14 |
9 |
3 |
| Min temperature (night-time) | -10 |
-10 |
-7 |
-1 |
5 |
10 |
15 |
16 |
11 |
4 |
-2 |
-7 |
| Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
L |
0 |
0 |
0 |
0 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & UV index in Kusatsu
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily hours of sunshine | ||||||||||||
| Daily hours of daylight | 10 |
11 |
12 |
13 |
14 |
15 |
14 |
14 |
12 |
11 |
10 |
10 |
| UV Index (Maximum) | 2 |
3 |
5 |
7 |
9 |
10 |
10 |
10 |
8 |
5 |
3 |
2 |
Rainfall in Kusatsu
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 21 |
20 |
20 |
17 |
17 |
21 |
23 |
21 |
20 |
16 |
15 |
18 |
| Average monthly rainfall (mm) | 42 |
53 |
68 |
97 |
119 |
196 |
204 |
202 |
205 |
121 |
67 |
39 |
More about Kusatsu
Kusatsu by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Japan
The climate guide for Japan (Kusatsu) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Kusatsu?
Kusatsu has a cold climate with warm summers and some rainfall in all months.
Kusatsu weather in January
Expect daytime maximum temperatures of 0°C in Kusatsu, Japan in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 21 days with some rainfall and typically 42 mm of rainfall in the month, which might fall as snow.
- 0°C max day temperature
0 - 5 hours of sunshine per day
- 21 days with some rainfall
21 - -10°C min night temperature
-10 - 10 hours of daylight per day
10 - No heat & humidity
0 - 42 mm of monthly rainfall
42 - 2 (Low) UV index
2
Kusatsu weather in February
Expect daytime maximum temperatures of 0°C in Kusatsu, Japan in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 20 days with some rainfall and typically 53 mm of rainfall in the month, which might fall as snow.
- 0°C max day temperature
0 - 5 hours of sunshine per day
- 20 days with some rainfall
20 - -10°C min night temperature
-10 - 11 hours of daylight per day
11 - No heat & humidity
0 - 53 mm of monthly rainfall
53 - 3 (Moderate) UV index
3
Kusatsu weather in March
Expect daytime maximum temperatures of 4°C in Kusatsu, Japan in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 20 days with some rainfall and typically 68 mm of rainfall in the month, which might fall as snow.
- 4°C max day temperature
4 - 6 hours of sunshine per day
- 20 days with some rainfall
20 - -7°C min night temperature
-7 - 12 hours of daylight per day
12 - No heat & humidity
0 - 68 mm of monthly rainfall
68 - 5 (Moderate) UV index
5
Kusatsu weather in April
Expect daytime maximum temperatures of 12°C in Kusatsu, Japan in April based on long-term weather averages. There are 6 hours of sunshine per day on average with 17 days with some rainfall and typically 97 mm of rainfall in the month.
- 12°C max day temperature
12 - 6 hours of sunshine per day
- 17 days with some rainfall
17 - -1°C min night temperature
-1 - 13 hours of daylight per day
13 - No heat & humidity
0 - 97 mm of monthly rainfall
97 - 7 (High) UV index
7
Kusatsu weather in May
Expect daytime maximum temperatures of 17°C in Kusatsu, Japan in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 17 days with some rainfall and typically 119 mm of rainfall in the month.
- 17°C max day temperature
17 - 6 hours of sunshine per day
- 17 days with some rainfall
17 - 5°C min night temperature
5 - 14 hours of daylight per day
14 - No heat & humidity
0 - 119 mm of monthly rainfall
119 - 9 (Very High) UV index
9
Kusatsu weather in June
Expect daytime maximum temperatures of 19°C in Kusatsu, Japan in June based on long-term weather averages. There are 5 hours of sunshine per day on average with 21 days with some rainfall and typically 196 mm of rainfall in the month.
- 19°C max day temperature
19 - 5 hours of sunshine per day
- 21 days with some rainfall
21 - 10°C min night temperature
10 - 15 hours of daylight per day
15 - No heat & humidity
0 - 196 mm of monthly rainfall
196 - 10 (Very High) UV index
10
Kusatsu weather in July
Expect daytime maximum temperatures of 23°C in Kusatsu, Japan in July based on long-term weather averages. There are 4 hours of sunshine per day on average with 23 days with some rainfall and typically 204 mm of rainfall in the month.
- 23°C max day temperature
23 - 4 hours of sunshine per day
- 23 days with some rainfall
23 - 15°C min night temperature
15 - 14 hours of daylight per day
14 - No heat & humidity
0 - 204 mm of monthly rainfall
204 - 10 (Very High) UV index
10
Kusatsu weather in August
Expect daytime maximum temperatures of 25°C in Kusatsu, Japan in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 21 days with some rainfall and typically 202 mm of rainfall in the month.
- 25°C max day temperature
25 - 5 hours of sunshine per day
- 21 days with some rainfall
21 - 16°C min night temperature
16 - 14 hours of daylight per day
14 - Low heat & humidity
L - 202 mm of monthly rainfall
202 - 10 (Very High) UV index
10
Kusatsu weather in September
Expect daytime maximum temperatures of 20°C in Kusatsu, Japan in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 20 days with some rainfall and typically 205 mm of rainfall in the month.
- 20°C max day temperature
20 - 4 hours of sunshine per day
- 20 days with some rainfall
20 - 11°C min night temperature
11 - 12 hours of daylight per day
12 - No heat & humidity
0 - 205 mm of monthly rainfall
205 - 8 (Very High) UV index
8
Kusatsu weather in October
Expect daytime maximum temperatures of 14°C in Kusatsu, Japan in October based on long-term weather averages. There are 4 hours of sunshine per day on average with 16 days with some rainfall and typically 121 mm of rainfall in the month.
- 14°C max day temperature
14 - 4 hours of sunshine per day
- 16 days with some rainfall
16 - 4°C min night temperature
4 - 11 hours of daylight per day
11 - No heat & humidity
0 - 121 mm of monthly rainfall
121 - 5 (Moderate) UV index
5
Kusatsu weather in November
Expect daytime maximum temperatures of 9°C in Kusatsu, Japan in November based on long-term weather averages. There are 5 hours of sunshine per day on average with 15 days with some rainfall and typically 67 mm of rainfall in the month.
- 9°C max day temperature
9 - 5 hours of sunshine per day
- 15 days with some rainfall
15 - -2°C min night temperature
-2 - 10 hours of daylight per day
10 - No heat & humidity
0 - 67 mm of monthly rainfall
67 - 3 (Moderate) UV index
3
Kusatsu weather in December
Expect daytime maximum temperatures of 3°C in Kusatsu, Japan in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall, which might fall as snow.
- 3°C max day temperature
3 - 5 hours of sunshine per day
- 18 days with some rainfall
18 - -7°C min night temperature
-7 - 10 hours of daylight per day
10 - No heat & humidity
0 - 39 mm of monthly rainfall
39 - 2 (Low) UV index
2
More about Kusatsu
Kusatsu by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Japan
- Explore latest offers on Fred Olsen Cruises in 2026/2027
- Find last minute deals or early bird discounts
- Filter offers by price, destination, ship & departure point
The climate guide for Japan (Kusatsu) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Compare Kusatsu weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Kusatsu, Japan and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
More about Japan
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