Climate and monthly weather forecastKoshimizu, Japan
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Koshimizu, Japan, with an average temperature ranging between min -9.3°C (15.3°F) and max -3.9°C (25°F). Koshimizu's January weather, marked by an average high temperature of -3.9°C (25°F) and an average low temperature of -9.3°C (15.3°F), is the coldest in the year. Weather in January »Weather in February
February, the last month of the winter in Koshimizu, is another freezing cold month, with an average temperature fluctuating between -3.5°C (25.7°F) and -10.4°C (13.3°F). The commencement of February notes an average high-temperature of a still freezing cold -3.5°C (25.7°F), exhibiting little difference from the previous month. Weather in February »Weather in March
The first month of the spring, March, is an icy month in Koshimizu, Japan, with an average temperature varying between 0.5°C (32.9°F) and -6.1°C (21°F). March's arrival is noted with a slight increase in the average high-temperature, moving from a freezing cold -3.5°C (25.7°F) in February to a wintry 0.5°C (32.9°F). Weather in March »Weather in April
April is a frosty spring month in Koshimizu, Japan, with an average temperature varying between 7.6°C (45.7°F) and -0.1°C (31.8°F). April sees a temperature increase, moving from an icy 0.5°C (32.9°F) in March to a chilly 7.6°C (45.7°F). Weather in April »Weather in May
The last month of the spring, May, is a moderate month in Koshimizu, Japan, with an average temperature varying between 5.4°C (41.7°F) and 14.1°C (57.4°F). May's arrival sees a rise in the average high-temperature, jumping from April's chilly 7.6°C (45.7°F) to a moderate 14.1°C (57.4°F). Weather in May »Weather in June
June, the first month of the summer in Koshimizu, is a comfortable month, with an average temperature varying between 17.9°C (64.2°F) and 9.5°C (49.1°F). Koshimizu's weather shows a minor temperature rise with the arrival of June, moving from a mild 14.1°C (57.4°F) in May to a still refreshing 17.9°C (64.2°F). Weather in June »Weather in July
July in Koshimizu, Japan, is an agreeable summer month, with temperature in the range of an average high of 22.1°C (71.8°F) and an average low of 13.8°C (56.8°F). July brings a slight elevation in the average high-temperature, transitioning from June's refreshing 17.9°C (64.2°F) to a pleasant 22.1°C (71.8°F). Weather in July »Weather in August
August, the last month of the summer in Koshimizu, is a moderately hot month, with an average temperature ranging between max 23.1°C (73.6°F) and min 15.4°C (59.7°F). Koshimizu's temperatures peak on average in August, reaching 23.1°C (73.6°F) at their highest and 15.4°C (59.7°F) at their lowest. Weather in August »Weather in September
September, the first month of the autumn in Koshimizu, is also an agreeable month, with an average temperature fluctuating between 20.1°C (68.2°F) and 12.4°C (54.3°F). The arrival of September corresponds with a light shift in temperature, down from a moderately hot 23.1°C (73.6°F) in August to an agreeable 20.1°C (68.2°F). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Koshimizu, Japan, with an average temperature fluctuating between 6.1°C (43°F) and 13.3°C (55.9°F). In October, the average high-temperature goes from a pleasant 20.1°C (68.2°F) in September to a refreshing 13.3°C (55.9°F). Weather in October »Weather in November
November, the last month of the autumn in Koshimizu, is another cold month, with temperature in the range of an average high of 5.9°C (42.6°F) and an average low of 0.2°C (32.4°F). A moderate decline in the average high-temperature is seen during November, decreasing from a mild 13.3°C (55.9°F) in October to a wintry 5.9°C (42.6°F). Weather in November »Weather in December
December, the first month of the winter in Koshimizu, is still a freezing cold month, with an average temperature fluctuating between -0.6°C (30.9°F) and -5.5°C (22.1°F). December brings a decrease in the average high-temperature, shifting from a cold 5.9°C (42.6°F) in November to a freezing cold -0.6°C (30.9°F). Weather in December »Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Temperature records in Koshimizu, Japan, mark January as the coldest month, with highs averaging -3.9°C (25°F) and lows at -9.3°C (15.3°F).
Throughout the year, in Koshimizu, there are 111 rainfall days, and 503mm (19.8") of precipitation is accumulated.
Months with snowfall in Koshimizu are January through May, October through December.
Throughout the year, there are 66.5 snowfall days, and 701mm (27.6") of snow is accumulated.
The months with the lowest UV index in Koshimizu are January through March and December, with an average maximum UV index of 1.
February is the most humid month, with an average relative humidity of 89%.
The month with the least rainfall is February, when the rain falls for 2.8 days and typically collects 24mm (0.94") of precipitation.
The month with the most snowfall is February, when snow falls for 13.9 days and typically aggregates up to 159mm (6.26") of snow.
February has the least sunshine of the year in Koshimizu, Japan, with an average of 3.1h of sunshine.
With an average relative humidity of 77%, May is the least humid month in Koshimizu, Japan.
In Koshimizu, snow does not fall in June through September.
The month with the longest days in Koshimizu, Japan, is June, with an average of 15h and 24min of daylight.
July is the month with the highest UV index in Koshimizu, Japan, with an average maximum UV index of 6.
Koshimizu, Japan, witnesses the warmest weather in August, with temperatures averaging a high of 23.1°C (73.6°F) and a low of 15.4°C (59.7°F).
The month with the most rainfall in Koshimizu, Japan, is August, when the rain falls for 14.3 days and typically aggregates up to 80mm (3.15") of precipitation.
With an average of 8.6h of sunshine, August has the most sunshine of the year in Koshimizu.
The month with the shortest days in Koshimizu is December, with an average of 9h and 0min of daylight.
Koshimizu, Japan, does not utilize Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Koshimizu, Japan
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (-3.9°C).
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is February (-10.4°C).
Average pressure
Koshimizu, Japan
- Average pressure in January:
1011.5mbar - Average pressure in February:
1013.6mbar - Average pressure in March:
1012.4mbar - Average pressure in April:
1011.9mbar - Average pressure in May:
1010.5mbar - Average pressure in June:
1009.6mbar
- Average pressure in July:
1009.2mbar - Average pressure in August:
1010.4mbar - Average pressure in September:
1013.9mbar - Average pressure in October:
1015.3mbar - Average pressure in November:
1015mbar - Average pressure in December:
1011.3mbar
The month with the highest atmospheric pressure is October (1015.3mbar).
The month with the lowest atmospheric pressure is July (1009.2mbar).
Average wind speed
Koshimizu, Japan
- Average wind speed in January:
13km/h - Average wind speed in February:
11.5km/h - Average wind speed in March:
11.5km/h - Average wind speed in April:
11.7km/h - Average wind speed in May:
10.9km/h - Average wind speed in June:
9.3km/h
- Average wind speed in July:
8.7km/h - Average wind speed in August:
8.6km/h - Average wind speed in September:
10km/h - Average wind speed in October:
12.1km/h - Average wind speed in November:
12.4km/h - Average wind speed in December:
13.6km/h
The windiest month (with the highest average wind speed) is December (13.6km/h).
The calmest month (with the lowest average wind speed) is August (8.6km/h).
Average humidity
Koshimizu, Japan
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (77%).
Average rainfall
Koshimizu, Japan
The wettest month (with the highest rainfall) is August (80mm).
The driest month (with the least rainfall) is February (24mm).
Average rainfall days
Koshimizu, Japan
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
2.8 days - Average rainfall days in March:
5.5 days - Average rainfall days in April:
8.8 days - Average rainfall days in May:
10.7 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
15 days - Average rainfall days in August:
14.3 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
8 days - Average rainfall days in December:
5.4 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is February (2.8 days).
Average snowfall
Koshimizu, Japan
The month with the highest snowfall is February (159mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Koshimizu, Japan
- Average snowfall days in January:
16.3 days - Average snowfall days in February:
13.9 days - Average snowfall days in March:
12.7 days - Average snowfall days in April:
5.6 days - Average snowfall days in May:
0.5 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:
0.4 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
12.6 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Koshimizu, Japan
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
3h and 12min - Average sunshine in February:
3h and 6min - Average sunshine in March:
5h and 6min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 30min - Average sunshine in June:
8h and 0min
- Average sunshine in July:
8h and 30min - Average sunshine in August:
8h and 36min - Average sunshine in September:
7h and 24min - Average sunshine in October:
7h and 24min - Average sunshine in November:
4h and 36min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).
Average sunshine days
Koshimizu, Japan
- Average sunshine days in January:
14.3 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
15.6 days - Average sunshine days in May:
17.9 days - Average sunshine days in June:
13.8 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
14.6 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (13.3 days).
Average UV index
Koshimizu, Japan
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 1).
Average cloud cover
Koshimizu, Japan
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is October (Cloud cover 39).
Average visibility
Koshimizu, Japan
The months with the highest visibility are January, April, May, September, October, November and December (9km).
The months with the lowest visibility are February, March, June, July and August (8km).
