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°C maximum daytime temperature in January in Kusatsu0
0°C maximum daytime temperature in February in Kusatsu0
4°C maximum daytime temperature in March in Kusatsu4
12°C maximum daytime temperature in April in Kusatsu12
17°C maximum daytime temperature in May in Kusatsu17
19°C maximum daytime temperature in June in Kusatsu19
23°C maximum daytime temperature in July in Kusatsu23
25°C maximum daytime temperature in August in Kusatsu25
20°C maximum daytime temperature in September in Kusatsu20
14°C maximum daytime temperature in October in Kusatsu14
9°C maximum daytime temperature in November in Kusatsu9
3°C maximum daytime temperature in December in Kusatsu3
Min temperature (night-time)
-10°C minimum night-time temperature in January in Kusatsu-10
-10°C minimum night-time temperature in February in Kusatsu-10
-7°C minimum night-time temperature in March in Kusatsu-7
-1°C minimum night-time temperature in April in Kusatsu-1
5°C minimum night-time temperature in May in Kusatsu5
10°C minimum night-time temperature in June in Kusatsu10
15°C minimum night-time temperature in July in Kusatsu15
16°C minimum night-time temperature in August in Kusatsu16
11°C minimum night-time temperature in September in Kusatsu11
4°C minimum night-time temperature in October in Kusatsu4
-2°C minimum night-time temperature in November in Kusatsu-2
-7°C minimum night-time temperature in December in Kusatsu-7
Heat & Humidity
No heat & humidity in January in Kusatsu0
No heat & humidity in February in Kusatsu0
No heat & humidity in March in Kusatsu0
No heat & humidity in April in Kusatsu0
No heat & humidity in May in Kusatsu0
No heat & humidity in June in Kusatsu0
No heat & humidity in July in Kusatsu0
Low heat & humidity in August in KusatsuL
No heat & humidity in September in Kusatsu0
No heat & humidity in October in Kusatsu0
No heat & humidity in November in Kusatsu0
No heat & humidity in December in Kusatsu0

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 hours of daylight per day in January in Kusatsu10
11 hours of daylight per day in February in Kusatsu11
12 hours of daylight per day in March in Kusatsu12
13 hours of daylight per day in April in Kusatsu13
14 hours of daylight per day in May in Kusatsu14
15 hours of daylight per day in June in Kusatsu15
14 hours of daylight per day in July in Kusatsu14
14 hours of daylight per day in August in Kusatsu14
12 hours of daylight per day in September in Kusatsu12
11 hours of daylight per day in October in Kusatsu11
10 hours of daylight per day in November in Kusatsu10
10 hours of daylight per day in December in Kusatsu10
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Kusatsu2
UV (maximum) index 3 (Moderate) in February in Kusatsu3
UV (maximum) index 5 (Moderate) in March in Kusatsu5
UV (maximum) index 7 (High) in April in Kusatsu7
UV (maximum) index 9 (Very High) in May in Kusatsu9
UV (maximum) index 10 (Very High) in June in Kusatsu10
UV (maximum) index 10 (Very High) in July in Kusatsu10
UV (maximum) index 10 (Very High) in August in Kusatsu10
UV (maximum) index 8 (Very High) in September in Kusatsu8
UV (maximum) index 5 (Moderate) in October in Kusatsu5
UV (maximum) index 3 (Moderate) in November in Kusatsu3
UV (maximum) index 2 (Low) in December in Kusatsu2

Rainfall in Kusatsu

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
21 days with some rainfall in January in Kusatsu21
20 days with some rainfall in February in Kusatsu20
20 days with some rainfall in March in Kusatsu20
17 days with some rainfall in April in Kusatsu17
17 days with some rainfall in May in Kusatsu17
21 days with some rainfall in June in Kusatsu21
23 days with some rainfall in July in Kusatsu23
21 days with some rainfall in August in Kusatsu21
20 days with some rainfall in September in Kusatsu20
16 days with some rainfall in October in Kusatsu16
15 days with some rainfall in November in Kusatsu15
18 days with some rainfall in December in Kusatsu18
Average monthly rainfall (mm)
42 mm monthly rainfall in January in Kusatsu42
53 mm monthly rainfall in February in Kusatsu53
68 mm monthly rainfall in March in Kusatsu68
97 mm monthly rainfall in April in Kusatsu97
119 mm monthly rainfall in May in Kusatsu119
196 mm monthly rainfall in June in Kusatsu196
204 mm monthly rainfall in July in Kusatsu204
202 mm monthly rainfall in August in Kusatsu202
205 mm monthly rainfall in September in Kusatsu205
121 mm monthly rainfall in October in Kusatsu121
67 mm monthly rainfall in November in Kusatsu67
39 mm monthly rainfall in December in Kusatsu39

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

Fred OlsenCruise deal finder

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 maximum daytime temperature in January in Kusatsu0
    0°C max day temperature
  • 5 hours of sunshine per day
  • 21 days with some rainfall in January in Kusatsu21
    21 days with some rainfall
  • -10°C minimum night-time temperature in January in Kusatsu-10
    -10°C min night temperature
  • 10 hours of daylight per day in January in Kusatsu10
    10 hours of daylight per day
  • No heat & humidity in January in Kusatsu0
    No heat & humidity
  • 42 mm monthly rainfall in January in Kusatsu42
    42 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Kusatsu2
    2 (Low) UV index

Back to months

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 maximum daytime temperature in February in Kusatsu0
    0°C max day temperature
  • 5 hours of sunshine per day
  • 20 days with some rainfall in February in Kusatsu20
    20 days with some rainfall
  • -10°C minimum night-time temperature in February in Kusatsu-10
    -10°C min night temperature
  • 11 hours of daylight per day in February in Kusatsu11
    11 hours of daylight per day
  • No heat & humidity in February in Kusatsu0
    No heat & humidity
  • 53 mm monthly rainfall in February in Kusatsu53
    53 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in February in Kusatsu3
    3 (Moderate) UV index

Back to months

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 maximum daytime temperature in March in Kusatsu4
    4°C max day temperature
  • 6 hours of sunshine per day
  • 20 days with some rainfall in March in Kusatsu20
    20 days with some rainfall
  • -7°C minimum night-time temperature in March in Kusatsu-7
    -7°C min night temperature
  • 12 hours of daylight per day in March in Kusatsu12
    12 hours of daylight per day
  • No heat & humidity in March in Kusatsu0
    No heat & humidity
  • 68 mm monthly rainfall in March in Kusatsu68
    68 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in March in Kusatsu5
    5 (Moderate) UV index

Back to months

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 maximum daytime temperature in April in Kusatsu12
    12°C max day temperature
  • 6 hours of sunshine per day
  • 17 days with some rainfall in April in Kusatsu17
    17 days with some rainfall
  • -1°C minimum night-time temperature in April in Kusatsu-1
    -1°C min night temperature
  • 13 hours of daylight per day in April in Kusatsu13
    13 hours of daylight per day
  • No heat & humidity in April in Kusatsu0
    No heat & humidity
  • 97 mm monthly rainfall in April in Kusatsu97
    97 mm of monthly rainfall
  • UV (maximum) index 7 (High) in April in Kusatsu7
    7 (High) UV index

Back to months

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 maximum daytime temperature in May in Kusatsu17
    17°C max day temperature
  • 6 hours of sunshine per day
  • 17 days with some rainfall in May in Kusatsu17
    17 days with some rainfall
  • 5°C minimum night-time temperature in May in Kusatsu5
    5°C min night temperature
  • 14 hours of daylight per day in May in Kusatsu14
    14 hours of daylight per day
  • No heat & humidity in May in Kusatsu0
    No heat & humidity
  • 119 mm monthly rainfall in May in Kusatsu119
    119 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in May in Kusatsu9
    9 (Very High) UV index

Back to months

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 maximum daytime temperature in June in Kusatsu19
    19°C max day temperature
  • 5 hours of sunshine per day
  • 21 days with some rainfall in June in Kusatsu21
    21 days with some rainfall
  • 10°C minimum night-time temperature in June in Kusatsu10
    10°C min night temperature
  • 15 hours of daylight per day in June in Kusatsu15
    15 hours of daylight per day
  • No heat & humidity in June in Kusatsu0
    No heat & humidity
  • 196 mm monthly rainfall in June in Kusatsu196
    196 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in June in Kusatsu10
    10 (Very High) UV index

Back to months

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 maximum daytime temperature in July in Kusatsu23
    23°C max day temperature
  • 4 hours of sunshine per day
  • 23 days with some rainfall in July in Kusatsu23
    23 days with some rainfall
  • 15°C minimum night-time temperature in July in Kusatsu15
    15°C min night temperature
  • 14 hours of daylight per day in July in Kusatsu14
    14 hours of daylight per day
  • No heat & humidity in July in Kusatsu0
    No heat & humidity
  • 204 mm monthly rainfall in July in Kusatsu204
    204 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in July in Kusatsu10
    10 (Very High) UV index

Back to months

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 maximum daytime temperature in August in Kusatsu25
    25°C max day temperature
  • 5 hours of sunshine per day
  • 21 days with some rainfall in August in Kusatsu21
    21 days with some rainfall
  • 16°C minimum night-time temperature in August in Kusatsu16
    16°C min night temperature
  • 14 hours of daylight per day in August in Kusatsu14
    14 hours of daylight per day
  • Low heat & humidity in August in KusatsuL
    Low heat & humidity
  • 202 mm monthly rainfall in August in Kusatsu202
    202 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Kusatsu10
    10 (Very High) UV index

Back to months

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 maximum daytime temperature in September in Kusatsu20
    20°C max day temperature
  • 4 hours of sunshine per day
  • 20 days with some rainfall in September in Kusatsu20
    20 days with some rainfall
  • 11°C minimum night-time temperature in September in Kusatsu11
    11°C min night temperature
  • 12 hours of daylight per day in September in Kusatsu12
    12 hours of daylight per day
  • No heat & humidity in September in Kusatsu0
    No heat & humidity
  • 205 mm monthly rainfall in September in Kusatsu205
    205 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Kusatsu8
    8 (Very High) UV index

Back to months

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 maximum daytime temperature in October in Kusatsu14
    14°C max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in October in Kusatsu16
    16 days with some rainfall
  • 4°C minimum night-time temperature in October in Kusatsu4
    4°C min night temperature
  • 11 hours of daylight per day in October in Kusatsu11
    11 hours of daylight per day
  • No heat & humidity in October in Kusatsu0
    No heat & humidity
  • 121 mm monthly rainfall in October in Kusatsu121
    121 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in October in Kusatsu5
    5 (Moderate) UV index

Back to months

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 maximum daytime temperature in November in Kusatsu9
    9°C max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in November in Kusatsu15
    15 days with some rainfall
  • -2°C minimum night-time temperature in November in Kusatsu-2
    -2°C min night temperature
  • 10 hours of daylight per day in November in Kusatsu10
    10 hours of daylight per day
  • No heat & humidity in November in Kusatsu0
    No heat & humidity
  • 67 mm monthly rainfall in November in Kusatsu67
    67 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in November in Kusatsu3
    3 (Moderate) UV index

Back to months

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 maximum daytime temperature in December in Kusatsu3
    3°C max day temperature
  • 5 hours of sunshine per day
  • 18 days with some rainfall in December in Kusatsu18
    18 days with some rainfall
  • -7°C minimum night-time temperature in December in Kusatsu-7
    -7°C min night temperature
  • 10 hours of daylight per day in December in Kusatsu10
    10 hours of daylight per day
  • No heat & humidity in December in Kusatsu0
    No heat & humidity
  • 39 mm monthly rainfall in December in Kusatsu39
    39 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Kusatsu2
    2 (Low) UV index

Back to months

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

Fred OlsenCruise deal finder

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)

Kusatsu, Japan
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

Compare more weather >>

Back to top

More about Japan

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^