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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
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 35.2°F and 47.1°F. January is the coldest month, exhibiting average temperatures of 47.1°F at the peak and 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 36.5°F and 48.7°F. Koshigaya commences February with an average high-temperature of a still frosty 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 41.7°F and 55.8°F. With the beginning of March, Koshigaya's average high-temperature sees a minor increase, transitioning from a chilly 48.7°F in February to a refreshing 55.8°F. Weather in March »
Weather in April
April is a comfortable spring month in Koshigaya, Japan, with an average temperature fluctuating between 64.4°F and 49.8°F. The start of April brings a subtle rise in the average high-temperature, moving from a refreshing 55.8°F in March to a comfortable 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 74.5°F and min 60.1°F. Koshigaya in May experiences an increase in the average high-temperature, moving from April's comfortable 64.4°F to a moderately hot 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 78.8°F and 66.4°F. June begins with an average high-temperature of a still warm 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 86.2°F and 73.6°F. As June transitions into July, a subtle temperature shift is observed, with average highs adjusting from a moderately hot 78.8°F to a tropical 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 76.3°F and an average high of 89.4°F. Koshigaya's warmest temperatures are experienced in August, with average high temperatures of 89.4°F and lows of 76.3°F. August's heat index is computed to be an extremely hot 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 69.1°F and 81°F. The move into September indicates a slight reduction in the average high-temperature, down from August's hot 89.4°F to a moderately hot 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 60.1°F and max 70.7°F. The arrival of October corresponds with a reduction in the average high-temperature, down from September's warm 81°F to a pleasant 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 60.8°F and 50.2°F. The shift to November brings a decrease in the average high-temperature, falling from a pleasant 70.7°F in October to a comfortable 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 50.9°F and min 40.1°F. The arrival of December corresponds with a shift in temperature, down from a refreshing 60.8°F in November to a cool 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
What is the coldest time of year in Koshigaya?
With average high temperatures of 47.1°F and lows of 35.2°F, January is the coldest month in Koshigaya, Japan.
What is the least humid month in Koshigaya?
January is the least humid month in Koshigaya, Japan, with an average relative humidity of 59%.
How many days does it rain in Koshigaya?
Throughout the year, in Koshigaya, there are 167.3 rainfall days, and 34.25" of precipitation is accumulated.
When does it snow in Koshigaya?
January through March are months with snowfall in Koshigaya.
How much does it snow in Koshigaya?
In Koshigaya, Japan, during the entire year, snow falls for 3.8 days and aggregates up to 1.77" of snow.
When is the lowest UV index in Koshigaya?
With an average maximum UV index of 2, January is the month with the lowest UV index.
When does it snow the most in Koshigaya?
The month with the most snowfall is February, when snow falls for 2.4 days and typically aggregates up to 1.18" of snow.
What is the month with the least sunshine in Koshigaya?
With an average of 5.8h of sunshine, February has the least sunshine of the year.
When it does not snow in Koshigaya?
In Koshigaya, Japan, snow does not fall in April through December.
When are the longest days in Koshigaya?
With an average of 14h and 36min of daylight, June has the longest days of the year.
What is the most humid month in Koshigaya?
July is the most humid month in Koshigaya, Japan, with an average relative humidity of 76%.
When is the highest UV index in Koshigaya?
The month with the highest UV index in Koshigaya, Japan, is July, with an average maximum UV index of 7.
What is the hottest time of year in Koshigaya?
Koshigaya's warmest weather arrives in August, when temperatures average a high of 89.4°F and a low of 76.3°F.
What month has the most sunshine in Koshigaya?
The month with the most sunshine is August, with an average of 10h of sunshine.
What is the rainiest month in Koshigaya?
October is the month with the most rainfall. Rain falls for 15.9 days and accumulates 4.76" of precipitation.
What is the driest month in Koshigaya?
The month with the least rainfall is December, when the rain falls for 9 days and typically collects 1.3" of precipitation.
What is the month with the shortest days in Koshigaya?
With an average of 9h and 48min of daylight, December has the shortest days of the year.
Is there Daylight Saving Time (DST) in Koshigaya?
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 (89.4°F).
The month with the lowest average high temperature is January (47.1°F).
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure
Koshigaya, Japan
- Average pressure in January:
30.01"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
29.99"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.88"Hg - Average pressure in June:
29.8"Hg
- Average pressure in July:
29.82"Hg - Average pressure in August:
29.83"Hg - Average pressure in September:
29.93"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.01"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed
Koshigaya, Japan
- Average wind speed in January:
7.3mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.6mph - Average wind speed in April:
7.8mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.3mph - Average wind speed in September:
6.3mph - Average wind speed in October:
6.8mph - Average wind speed in November:
5.9mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is November (5.9mph).
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
- Average rainfall in January:
1.34" - Average rainfall in February:
1.46" - Average rainfall in March:
2.56" - Average rainfall in April:
3.03" - Average rainfall in May:
2.87" - Average rainfall in June:
3.82"
- Average rainfall in July:
3.86" - Average rainfall in August:
3.03" - Average rainfall in September:
4.21" - Average rainfall in October:
4.76" - Average rainfall in November:
2.01" - Average rainfall in December:
1.3"
The wettest month (with the highest rainfall) is October (4.76").
The driest month (with the least rainfall) is December (1.3").
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 (1.18").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
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 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
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 4min - Average sunshine in February:
5h and 5min - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 2min - Average sunshine in June:
8h and 3min
- Average sunshine in July:
9h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
7h and 4min - Average sunshine in October:
6h and 3min - Average sunshine in November:
6h and 0min - Average sunshine in December:
6h and 2min
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, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
