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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 Nishiarai, Japan, is a frosty winter month, with temperature in the range of an average high of 8.7°C (47.7°F) and an average low of 2.4°C (36.3°F). In Nishiarai, January is the coldest month, with temperatures averaging a high of 8.7°C (47.7°F) and a low of 2.4°C (36.3°F). Weather in January »
Weather in February
The last month of the winter, February, is another chilly month in Nishiarai, Japan, with an average temperature varying between 3.2°C (37.8°F) and 9.8°C (49.6°F). In February, Nishiarai experiences a minor shift in meteorological conditions with average high-temperatures marked at a still frosty 9.8°C (49.6°F), closely mirroring the climate in January. Weather in February »
Weather in March
March, the first month of the spring in Nishiarai, is a moderate month, with an average temperature varying between 13°C (55.4°F) and 5.9°C (42.6°F). The arrival of March introduces a minor uplift in high-temperatures, adjusting from a frosty 9.8°C (49.6°F) in February to a mild 13°C (55.4°F). Weather in March »
Weather in April
April in Nishiarai, Japan, is a refreshing spring month, with an average temperature ranging between min 10.3°C (50.5°F) and max 17.7°C (63.9°F). The coming of April brings a minor shift in Nishiarai's weather, with average high-temperatures adjusting from March's 13°C (55.4°F) to a still refreshing 17.7°C (63.9°F). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Nishiarai, Japan, with temperature in the range of an average high of 23.1°C (73.6°F) and an average low of 15.8°C (60.4°F). With the transition into May, Nishiarai experiences an increase in average high-temperatures, moving up from a refreshing 17.7°C (63.9°F) in April to a warm 23.1°C (73.6°F). Weather in May »
Weather in June
June, the first month of the summer in Nishiarai, is still a warm month, with an average temperature ranging between min 19.2°C (66.6°F) and max 25.3°C (77.5°F). An average high-temperature of a still moderately hot 25.3°C (77.5°F) marks June, exhibiting a close resemblance to the conditions in May. Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Nishiarai, Japan, with an average temperature fluctuating between 29.5°C (85.1°F) and 23.3°C (73.9°F). In July, the average high-temperature marginally rises from a warm 25.3°C (77.5°F) in June to a still moderately hot 29.5°C (85.1°F). Weather in July »
Weather in August
August, the last month of the summer in Nishiarai, is a tropical month, with an average temperature ranging between min 24.8°C (76.6°F) and max 31.3°C (88.3°F). Nishiarai notes the warmest temperatures in August, with a high average of 31.3°C (88.3°F) and a low of 24.8°C (76.6°F). The heat index value for August is evaluated at a scorching 40°C (104°F). Weather in August »
Weather in September
September, the first month of the autumn in Nishiarai, is also a moderately hot month, with an average temperature varying between 21.1°C (70°F) and 27°C (80.6°F). September heralds a minor drop in average high-temperature, sliding from August's hot 31.3°C (88.3°F) to a warm 27°C (80.6°F). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Nishiarai, Japan, with an average temperature fluctuating between 16.1°C (61°F) and 21.5°C (70.7°F). In Nishiarai, the average high-temperature in October drops from a moderately hot 27°C (80.6°F) in September to a pleasant 21.5°C (70.7°F). Weather in October »
Weather in November
The last month of the autumn, November, is another comfortable month in Nishiarai, Japan, with an average temperature ranging between max 16.2°C (61.2°F) and min 10.5°C (50.9°F). The beginning of November marks a decrease in the average high-temperature, transitioning from a pleasant 21.5°C (70.7°F) in October to a refreshing 16.2°C (61.2°F). Weather in November »
Weather in December
December, the first month of the winter in Nishiarai, is also a fresh month, with an average temperature varying between 5.2°C (41.4°F) and 10.8°C (51.4°F). December weather is marked by a drop in the average high-temperature, falling from a refreshing 16.2°C (61.2°F) in November to a cool 10.8°C (51.4°F). Weather in December »
Updated: Aug 20, 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 month?
January stands out as Nishiarai's coldest month, with temperatures ranging between an average high of 8.7°C (47.7°F) and a low of 2.4°C (36.3°F).
What is the least humid month?
The least humid month is January, with an average relative humidity of 60%.
What is the driest month?
January and December are months with the least rain when the rain falls for 8.3 days and typically aggregates up to 40mm (1.57") of rain.
How many days does it rain?
Throughout the year, there are 182.2 rainfall days, and 953mm (37.52") of precipitation is accumulated.
When does it snow in Nishiarai?
January through March are months with snowfall.
How many days does it snow?
In Nishiarai, during the entire year, snow falls for 5.1 days and aggregates up to 60mm (2.36") of snow.
When is the lowest UV index?
January is the month with the lowest UV index, with an average maximum UV index of 2.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 3 days and accumulates 43mm (1.69") of snow.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 5.8h of sunshine.
When it does not snow?
April through December are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 14h and 30min of daylight.
What is the most humid month?
July is the most humid month, with an average relative humidity of 77%.
When is the highest UV index?
July is the month with the highest UV index, with an average maximum UV index of 7.
What is the hottest time of year?
In Nishiarai, August records the average highest temperatures, peaking at 31.3°C (88.3°F) and reaching a low of 24.8°C (76.6°F).
What month has the most sunshine in Nishiarai?
August has the most sunshine of the year, with an average of 10.1h of sunshine.
What is the wettest month?
The month with the most rainfall is October, when the rain falls for 18.5 days and typically aggregates up to 129mm (5.08") of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 48min of daylight.
Is there Daylight Saving Time (DST)?
Nishiarai does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Nishiarai, Japan
The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (8.7°C).
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (2.4°C).
Average pressure
Nishiarai, Japan
- Average pressure in January:
1016.2mbar - Average pressure in February:
1017.2mbar - Average pressure in March:
1015.5mbar - Average pressure in April:
1014.2mbar - Average pressure in May:
1012mbar - Average pressure in June:
1009.2mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010.2mbar - Average pressure in September:
1013.5mbar - Average pressure in October:
1016.6mbar - Average pressure in November:
1018.1mbar - Average pressure in December:
1016.3mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed
Nishiarai, Japan
- Average wind speed in January:
13km/h - Average wind speed in February:
13.5km/h - Average wind speed in March:
13.8km/h - Average wind speed in April:
14.2km/h - Average wind speed in May:
12.8km/h - Average wind speed in June:
11.4km/h
- Average wind speed in July:
12km/h - Average wind speed in August:
11.6km/h - Average wind speed in September:
11.3km/h - Average wind speed in October:
12.5km/h - Average wind speed in November:
11km/h - Average wind speed in December:
12.2km/h
The windiest month (with the highest average wind speed) is April (14.2km/h).
The calmest month (with the lowest average wind speed) is November (11km/h).
Average humidity
Nishiarai, Japan
The month with the highest relative humidity is July (77%).
The month with the lowest relative humidity is January (60%).
Average rainfall
Nishiarai, Japan
The wettest month (with the highest rainfall) is October (129mm).
The driest months (with the least rainfall) are January and December (40mm).
Average rainfall days
Nishiarai, Japan
- Average rainfall days in January:
8.3 days - Average rainfall days in February:
11.3 days - Average rainfall days in March:
16.2 days - Average rainfall days in April:
15.6 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
19.8 days
- Average rainfall days in July:
19.6 days - Average rainfall days in August:
17.8 days - Average rainfall days in September:
18 days - Average rainfall days in October:
18.5 days - Average rainfall days in November:
12.5 days - Average rainfall days in December:
9.9 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall
Nishiarai, Japan
The month with the highest snowfall is February (43mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Nishiarai, Japan
- Average snowfall days in January:
1.6 days - Average snowfall days in February:
3 days - Average snowfall days in March:
0.3 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 (3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Nishiarai, 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 3min
- 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 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January:
6h and 3min - 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 4min
- Average sunshine in July:
9h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
7h and 5min - Average sunshine in October:
6h and 4min - Average sunshine in November:
6h and 0min - Average sunshine in December:
6h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days
Nishiarai, Japan
- Average sunshine days in January:
20.6 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
12.6 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
13.6 days - Average sunshine days in June:
7.7 days
- Average sunshine days in July:
8.3 days - Average sunshine days in August:
9.8 days - Average sunshine days in September:
8 days - Average sunshine days in October:
9.9 days - Average sunshine days in November:
14.8 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is June (7.7 days).
Average UV index
Nishiarai, 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
Nishiarai, 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 27).
Average visibility
Nishiarai, Japan
The months with the highest visibility are January, February, March, May, August, November and December (10km).
The months with the lowest visibility are April, June, July, September and October (9km).
