Climate and monthly weather forecastKoshigaya, Japan
Climate and monthly weather forecast
Weather in January
January, the same as December, in Koshigaya, Japan, is a frosty winter month, with an average temperature fluctuating between 1.8°C (35.2°F) and 8.4°C (47.1°F). January is the coldest month, exhibiting average temperatures of 8.4°C (47.1°F) at the peak and 1.8°C (35.2°F) at the base. Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Koshigaya, Japan, with an average temperature fluctuating between 2.5°C (36.5°F) and 9.3°C (48.7°F). Koshigaya commences February with an average high-temperature of a still frosty 9.3°C (48.7°F), maintaining a close resemblance to the previous month. Weather in February »Weather in March
March, the first month of the spring in Koshigaya, is a mild month, with an average temperature fluctuating between 5.4°C (41.7°F) and 13.2°C (55.8°F). With the beginning of March, Koshigaya's average high-temperature sees a minor increase, transitioning from a chilly 9.3°C (48.7°F) in February to a refreshing 13.2°C (55.8°F). Weather in March »Weather in April
April is a comfortable spring month in Koshigaya, Japan, with an average temperature fluctuating between 18°C (64.4°F) and 9.9°C (49.8°F). The start of April brings a subtle rise in the average high-temperature, moving from a refreshing 13.2°C (55.8°F) in March to a comfortable 18°C (64.4°F). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Koshigaya, Japan, with an average temperature ranging between max 23.6°C (74.5°F) and min 15.6°C (60.1°F). Koshigaya in May experiences an increase in the average high-temperature, moving from April's comfortable 18°C (64.4°F) to a moderately hot 23.6°C (74.5°F). Weather in May »Weather in June
June, the first month of the summer in Koshigaya, is also a moderately hot month, with an average temperature varying between 26°C (78.8°F) and 19.1°C (66.4°F). June begins with an average high-temperature of a still warm 26°C (78.8°F), reflecting close similarity to the preceding month. Weather in June »Weather in July
July is a hot summer month in Koshigaya, Japan, with an average temperature fluctuating between 30.1°C (86.2°F) and 23.1°C (73.6°F). As June transitions into July, a subtle temperature shift is observed, with average highs adjusting from a moderately hot 26°C (78.8°F) to a tropical 30.1°C (86.2°F). Weather in July »Weather in August
August, the last month of the summer in Koshigaya, is another hot month, with temperature in the range of an average low of 24.6°C (76.3°F) and an average high of 31.9°C (89.4°F). Koshigaya's warmest temperatures are experienced in August, with average high temperatures of 31.9°C (89.4°F) and lows of 24.6°C (76.3°F). August's heat index is computed to be an extremely hot 41°C (105.8°F). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Koshigaya, Japan, with an average temperature fluctuating between 20.6°C (69.1°F) and 27.2°C (81°F). The move into September indicates a slight reduction in the average high-temperature, down from August's hot 31.9°C (89.4°F) to a moderately hot 27.2°C (81°F). Weather in September »Weather in October
October, the same as September, in Koshigaya, Japan, is another pleasant autumn month, with an average temperature ranging between min 15.6°C (60.1°F) and max 21.5°C (70.7°F). The arrival of October corresponds with a reduction in the average high-temperature, down from September's warm 27.2°C (81°F) to a pleasant 21.5°C (70.7°F). Weather in October »Weather in November
November, the last month of the autumn in Koshigaya, is another comfortable month, with an average temperature varying between 16°C (60.8°F) and 10.1°C (50.2°F). The shift to November brings a decrease in the average high-temperature, falling from a pleasant 21.5°C (70.7°F) in October to a comfortable 16°C (60.8°F). Weather in November »Weather in December
The first month of the winter, December, is also a fresh month in Koshigaya, Japan, with an average temperature ranging between max 10.5°C (50.9°F) and min 4.5°C (40.1°F). The arrival of December corresponds with a shift in temperature, down from a refreshing 16°C (60.8°F) in November to a cool 10.5°C (50.9°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
With average high temperatures of 8.4°C (47.1°F) and lows of 1.8°C (35.2°F), January is the coldest month in Koshigaya, Japan.
January is the least humid month in Koshigaya, Japan, with an average relative humidity of 59%.
Throughout the year, in Koshigaya, there are 167.3 rainfall days, and 870mm (34.25") of precipitation is accumulated.
January through March are months with snowfall in Koshigaya.
In Koshigaya, Japan, during the entire year, snow falls for 3.8 days and aggregates up to 45mm (1.77") of snow.
With an average maximum UV index of 2, January is the month with the lowest UV index.
The month with the most snowfall is February, when snow falls for 2.4 days and typically aggregates up to 30mm (1.18") of snow.
With an average of 5.8h of sunshine, February has the least sunshine of the year.
In Koshigaya, Japan, snow does not fall in April through December.
With an average of 14h and 36min of daylight, June has the longest days of the year.
July is the most humid month in Koshigaya, Japan, with an average relative humidity of 76%.
The month with the highest UV index in Koshigaya, Japan, is July, with an average maximum UV index of 7.
Koshigaya's warmest weather arrives in August, when temperatures average a high of 31.9°C (89.4°F) and a low of 24.6°C (76.3°F).
The month with the most sunshine is August, with an average of 10h of sunshine.
October is the month with the most rainfall. Rain falls for 15.9 days and accumulates 121mm (4.76") of precipitation.
The month with the least rainfall is December, when the rain falls for 9 days and typically collects 33mm (1.3") of precipitation.
With an average of 9h and 48min of daylight, December has the shortest days of the year.
Koshigaya does not utilize Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Koshigaya, Japan
The warmest month (with the highest average high temperature) is August (31.9°C).
The month with the lowest average high temperature is January (8.4°C).
The month with the highest average low temperature is August (24.6°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure
Koshigaya, Japan
- Average pressure in January:
1016.3mbar - Average pressure in February:
1017.3mbar - Average pressure in March:
1015.6mbar - Average pressure in April:
1014.3mbar - Average pressure in May:
1012mbar - Average pressure in June:
1009.2mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.3mbar - Average pressure in September:
1013.6mbar - Average pressure in October:
1016.8mbar - Average pressure in November:
1018.2mbar - Average pressure in December:
1016.3mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed
Koshigaya, Japan
- Average wind speed in January:
11.8km/h - Average wind speed in February:
12km/h - Average wind speed in March:
12.3km/h - Average wind speed in April:
12.6km/h - Average wind speed in May:
11.4km/h - Average wind speed in June:
10.3km/h
- Average wind speed in July:
10.4km/h - Average wind speed in August:
10.2km/h - Average wind speed in September:
10.1km/h - Average wind speed in October:
10.9km/h - Average wind speed in November:
9.5km/h - Average wind speed in December:
10.9km/h
The windiest month (with the highest average wind speed) is April (12.6km/h).
The calmest month (with the lowest average wind speed) is November (9.5km/h).
Average humidity
Koshigaya, Japan
The month with the highest relative humidity is July (76%).
The month with the lowest relative humidity is January (59%).
Average rainfall
Koshigaya, Japan
The wettest month (with the highest rainfall) is October (121mm).
The driest month (with the least rainfall) is December (33mm).
Average rainfall days
Koshigaya, Japan
- Average rainfall days in January:
7.2 days - Average rainfall days in February:
8.6 days - Average rainfall days in March:
15.1 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
19.6 days - Average rainfall days in August:
17.8 days - Average rainfall days in September:
17.3 days - Average rainfall days in October:
15.9 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
9 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is January (7.2 days).
Average snowfall
Koshigaya, Japan
The month with the highest snowfall is February (30mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Koshigaya, Japan
- Average snowfall days in January:
0.9 days - Average snowfall days in February:
2.4 days - Average snowfall days in March:
0.4 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:
0.1 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Koshigaya, Japan
- Average daylight in January:
10h and 0min - 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 6min - Average daylight in June:
14h and 36min
- 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 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
6h and 36min - Average sunshine in February:
5h and 48min - Average sunshine in March:
6h and 48min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 18min - Average sunshine in June:
8h and 30min
- Average sunshine in July:
9h and 6min - Average sunshine in August:
10h and 0min - Average sunshine in September:
7h and 42min - Average sunshine in October:
6h and 30min - Average sunshine in November:
6h and 0min - Average sunshine in December:
6h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days
Koshigaya, Japan
- Average sunshine days in January:
22.1 days - Average sunshine days in February:
16.4 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
9.2 days
- Average sunshine days in July:
9.2 days - Average sunshine days in August:
10.6 days - Average sunshine days in September:
10.4 days - Average sunshine days in October:
13.6 days - Average sunshine days in November:
17.6 days - Average sunshine days in December:
20.6 days
The month with the most sunshine days is January (22.1 days).
The months with the least sunshine days are June and July (9.2 days).
Average UV index
Koshigaya, Japan
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover
Koshigaya, Japan
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 27).
Average visibility
Koshigaya, Japan
The months with the highest visibility are January, February, March, November and December (10km).
The months with the lowest visibility are April, May, June, July, August, September and October (9km).
