Climate and monthly weather forecastKatsushima, Japan
Climate and monthly weather forecast
Weather in January
January, the same as December, in Katsushima, Japan, is another chilly winter month, with an average temperature fluctuating between 3.4°C (38.1°F) and 8.9°C (48°F). The coldest month is January, with an average high-temperature of 8.9°C (48°F) and an average low-temperature of 3.4°C (38.1°F). Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Katsushima, Japan, with an average temperature fluctuating between 9.8°C (49.6°F) and 4.1°C (39.4°F). As Katsushima transitions from January to February, the average high-temperatures adjust to a still frosty 9.8°C (49.6°F), nearly the same as the previous 8.9°C (48°F). Weather in February »Weather in March
March, the first month of the spring in Katsushima, is a cool month, with an average temperature fluctuating between 12.8°C (55°F) and 6.7°C (44.1°F). With the onset of March, the average high-temperature subtly transitions from a frosty 9.8°C (49.6°F) in February to a cool 12.8°C (55°F). Weather in March »Weather in April
April is a refreshing spring month in Katsushima, Japan, with temperature in the range of an average high of 17.2°C (63°F) and an average low of 10.8°C (51.4°F). April's onset witnesses a minor shift in the average high-temperature, moving from a fresh 12.8°C (55°F) in March to a comfortable 17.2°C (63°F). Weather in April »Weather in May
May, the last month of the spring in Katsushima, is an agreeable month, with an average temperature fluctuating between 16.2°C (61.2°F) and 21.9°C (71.4°F). As May sets, the average high-temperature shows a slight increase, moving up from an enjoyable 17.2°C (63°F) in April to an agreeable 21.9°C (71.4°F). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Katsushima, Japan, with an average temperature ranging between min 19.2°C (66.6°F) and max 24.3°C (75.7°F). The average high-temperature is a warm 24.3°C (75.7°F) in June, hardly different from the 21.9°C (71.4°F) recorded in May. Weather in June »Weather in July
July, like June, in Katsushima, Japan, is a moderately hot summer month, with an average temperature ranging between max 28.3°C (82.9°F) and min 23.3°C (73.9°F). Katsushima perceives a slight temperature ascent during July, with average high-temperatures adjusting from a moderately hot 24.3°C (75.7°F) in June to a still warm 28.3°C (82.9°F). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Katsushima, Japan, with an average temperature fluctuating between 29.8°C (85.6°F) and 24.9°C (76.8°F). August stands out as Katsushima's warmest month, with temperatures ranging between an average high of 29.8°C (85.6°F) and a low of 24.9°C (76.8°F). August's mean heat index is estimated at a sweltering 36°C (96.8°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Katsushima, Japan, with an average temperature ranging between min 21.6°C (70.9°F) and max 26.5°C (79.7°F). The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 29.8°C (85.6°F) to a still moderately hot 26.5°C (79.7°F). Weather in September »Weather in October
October, like September, is an agreeable autumn month in Katsushima, Japan, with an average temperature varying between 21.5°C (70.7°F) and 16.8°C (62.2°F). A shift in Katsushima's weather is observed as September turns into October, with the average high temperature reducing from a moderately hot 26.5°C (79.7°F) to a pleasant 21.5°C (70.7°F). Weather in October »Weather in November
November, the last month of the autumn in Katsushima, is another comfortable month, with temperature in the range of an average low of 11.5°C (52.7°F) and an average high of 16.5°C (61.7°F). With the onset of November, Katsushima's average high-temperature adjusts, receding from October's pleasant 21.5°C (70.7°F) to a refreshing 16.5°C (61.7°F). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Katsushima, Japan, with temperature in the range of an average high of 11.5°C (52.7°F) and an average low of 6.4°C (43.5°F). In Katsushima, the beginning of December is marked by a lowered average high-temperature, shifting from November's refreshing 16.5°C (61.7°F) to a cool 11.5°C (52.7°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Katsushima, Japan
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (8.9°C).
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (3.4°C).
Average pressure
Katsushima, Japan
- Average pressure in January:
1016.1mbar - Average pressure in February:
1017mbar - Average pressure in March:
1015.4mbar - Average pressure in April:
1014.2mbar - Average pressure in May:
1011.9mbar - Average pressure in June:
1009.2mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.2mbar - Average pressure in September:
1013.4mbar - Average pressure in October:
1016.5mbar - Average pressure in November:
1018mbar - Average pressure in December:
1016.2mbar
The month with the highest atmospheric pressure is November (1018mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed
Katsushima, Japan
- Average wind speed in January:
15.8km/h - Average wind speed in February:
16.8km/h - Average wind speed in March:
17.1km/h - Average wind speed in April:
17.3km/h - Average wind speed in May:
15.6km/h - Average wind speed in June:
13.6km/h
- Average wind speed in July:
15km/h - Average wind speed in August:
14.2km/h - Average wind speed in September:
13.9km/h - Average wind speed in October:
15.4km/h - Average wind speed in November:
14km/h - Average wind speed in December:
15km/h
The windiest month (with the highest average wind speed) is April (17.3km/h).
The calmest month (with the lowest average wind speed) is June (13.6km/h).
Average humidity
Katsushima, Japan
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is January (61%).
Average rainfall
Katsushima, Japan
The wettest month (with the highest rainfall) is October (100mm).
The driest month (with the least rainfall) is December (36mm).
Average rainfall days
Katsushima, Japan
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
10.4 days - Average rainfall days in March:
15.2 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
16 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
14 days - Average rainfall days in October:
15.3 days - Average rainfall days in November:
11.9 days - Average rainfall days in December:
9.1 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is January (7.5 days).
Average snowfall
Katsushima, Japan
The month with the highest snowfall is February (37mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Katsushima, Japan
- Average snowfall days in January:
1.1 days - Average snowfall days in February:
2 days - Average snowfall days in March:
0.2 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.2 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Katsushima, Japan
- Average daylight in January:
10h and 6min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
14h and 0min - Average daylight in June:
14h and 30min
- Average daylight in July:
14h and 18min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 18min - Average daylight in December:
9h and 48min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
6h and 12min - Average sunshine in February:
5h and 30min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 36min - Average sunshine in May:
9h and 12min - Average sunshine in June:
8h and 36min
- Average sunshine in July:
9h and 30min - Average sunshine in August:
10h and 18min - Average sunshine in September:
7h and 54min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 54min - Average sunshine in December:
6h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days
Katsushima, Japan
- Average sunshine days in January:
20.9 days - Average sunshine days in February:
14.9 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
16.3 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
14.1 days - Average sunshine days in August:
15.9 days - Average sunshine days in September:
13.6 days - Average sunshine days in October:
13 days - Average sunshine days in November:
16.4 days - Average sunshine days in December:
20.2 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (12.3 days).
Average UV index
Katsushima, Japan
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover
Katsushima, Japan
The months with the most cloud cover are June and October (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility
Katsushima, Japan
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





