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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, like December, is a frosty winter month in Shiroi, Japan, with an average temperature fluctuating between 2.5°C (36.5°F) and 8.7°C (47.7°F). January is the coldest month, with an average high-temperature of 8.7°C (47.7°F) and an average low-temperature of 2.5°C (36.5°F). Weather in January »
Weather in February
The last month of the winter, February, is also a frosty month in Shiroi, Japan, with an average temperature varying between 9.7°C (49.5°F) and 3.1°C (37.6°F). The ushering in of February brings an average high-temperature of a still chilly 9.7°C (49.5°F), closely mirroring the 8.7°C (47.7°F) of January. Weather in February »
Weather in March
March, the first month of the spring in Shiroi, is a fresh month, with an average temperature fluctuating between 6°C (42.8°F) and 12.9°C (55.2°F). March's onset brings a subtle temperature rise, moving from a frosty 9.7°C (49.5°F) in February to a cool 12.9°C (55.2°F). Weather in March »
Weather in April
April in Shiroi, Japan, is a comfortable spring month, with an average temperature fluctuating between 17.7°C (63.9°F) and 10.3°C (50.5°F). April's arrival sees a mild rise in the average high-temperature, transitioning from March's cool 12.9°C (55.2°F) to a comfortable 17.7°C (63.9°F). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Shiroi, Japan, with an average temperature varying between 22.9°C (73.2°F) and 15.8°C (60.4°F). The start of May is characterized by an increase in the average high-temperature, transitioning from an enjoyable 17.7°C (63.9°F) in April to an agreeable 22.9°C (73.2°F). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Shiroi, Japan, with an average temperature fluctuating between 25.1°C (77.2°F) and 19.1°C (66.4°F). In June, Shiroi's weather conditions record an average high-temperature of a moderately hot 25.1°C (77.2°F), demonstrating little divergence from the preceding month. Weather in June »
Weather in July
July, the same as June, is another warm summer month in Shiroi, Japan, with an average temperature ranging between max 29.1°C (84.4°F) and min 22.8°C (73°F). July's arrival coincides with a marginal rise in the average high-temperature, moving from June's moderately hot 25.1°C (77.2°F) to a still warm 29.1°C (84.4°F). Weather in July »
Weather in August
The last month of the summer, August, is a hot month in Shiroi, Japan, with an average temperature varying between 31°C (87.8°F) and 24.6°C (76.3°F). August is the month when Shiroi's temperatures reach their peak, with averages of 31°C (87.8°F) and lows of 24.6°C (76.3°F). August's heat index is appraised at a blisteringly hot 40°C (104°F). Weather in August »
Weather in September
September, the first month of the autumn in Shiroi, is still a warm month, with an average temperature varying between 21°C (69.8°F) and 26.8°C (80.2°F). September marks a gentle change in average high-temperature, declining from August's hot 31°C (87.8°F) to a moderately hot 26.8°C (80.2°F). Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Shiroi, Japan, with an average temperature ranging between min 16.2°C (61.2°F) and max 21.5°C (70.7°F). The transition into October involves a decrease in the average high-temperature, falling from a moderately hot 26.8°C (80.2°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 Shiroi, Japan, with an average temperature varying between 10.5°C (50.9°F) and 16.2°C (61.2°F). The shift from October to November involves a decrease in the average high-temperature, from an agreeable 21.5°C (70.7°F) to a refreshing 16.2°C (61.2°F). Weather in November »
Weather in December
December, the first month of the winter in Shiroi, is also a fresh month, with temperature in the range of an average low of 5.3°C (41.5°F) and an average high of 10.8°C (51.4°F). Shiroi's transition into December involves a shift in temperature, receding from an enjoyable 16.2°C (61.2°F) in November to a cool 10.8°C (51.4°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 are the coldest months in Shiroi?
January, known for its average high temperature of 8.7°C (47.7°F) and an average low temperature of 2.5°C (36.5°F), is the coldest month in Shiroi, Japan.
What is the least humid month in Shiroi?
The least humid month in Shiroi is January, with an average relative humidity of 61%.
What is the driest month in Shiroi?
The month with the least rainfall in Shiroi is January, when the rain falls for 7.3 days and typically collects 18mm (0.71") of precipitation.
How much does it rain in Shiroi?
In Shiroi, Japan, during the entire year, the rain falls for 144.3 days and collects up to 423mm (16.65") of precipitation.
When does it snow in Shiroi?
Months with snowfall in Shiroi are January through March.
How much does it snow in Shiroi?
In Shiroi, Japan, during the entire year, snow falls for 5 days and aggregates up to 35mm (1.38") of snow.
When is the lowest UV index in Shiroi?
With an average maximum UV index of 2, January is the month with the lowest UV index in Shiroi, Japan.
When does it snow the most in Shiroi?
The month with the most snowfall is February, when snow falls for 2.8 days and typically aggregates up to 28mm (1.1") of snow.
What is the month with the least sunshine in Shiroi?
With an average of 5.5h of sunshine, February has the least sunshine of the year in Shiroi, Japan.
When it does not snow in Shiroi?
In Shiroi, snow does not fall in April through December.
When are the longest days in Shiroi?
June has the longest days of the year in Shiroi, Japan, with an average of 14h and 30min of daylight.
What is the most humid month in Shiroi?
July is the most humid month, with an average relative humidity of 79%.
When is the highest UV index in Shiroi?
July is the month with the highest UV index in Shiroi, with an average maximum UV index of 7.
What month is the hottest in Shiroi?
The warmest temperatures in Shiroi, Japan, occur during August, when averages reach a peak of 31°C (87.8°F) and a low of 24.6°C (76.3°F).
What month has the most sunshine in Shiroi?
August has the most sunshine of the year in Shiroi, with an average of 9.9h of sunshine.
What is the rainiest month in Shiroi?
October is the month with the most rainfall. Rain falls for 15.5 days and accumulates 58mm (2.28") of precipitation.
What is the month with the shortest days in Shiroi?
The month with the shortest days is December, with an average of 9h and 48min of daylight.
Is there Daylight Saving Time (DST) in Shiroi?
Shiroi does not observe Daylight Saving Time (DST). JST timezone is used throughout the entire year.
Average temperature
Shiroi, Japan
The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (8.7°C).
The month with the highest average low temperature is August (24.6°C).
The coldest month (with the lowest average low temperature) is January (2.5°C).
Average pressure
Shiroi, Japan
- Average pressure in January:
1016mbar - Average pressure in February:
1017.1mbar - Average pressure in March:
1015.5mbar - 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:
1013.5mbar - Average pressure in October:
1016.6mbar - Average pressure in November:
1018.1mbar - Average pressure in December:
1016.1mbar
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
Shiroi, Japan
- Average wind speed in January:
13.4km/h - Average wind speed in February:
13.9km/h - Average wind speed in March:
14.2km/h - Average wind speed in April:
14.6km/h - Average wind speed in May:
13.1km/h - Average wind speed in June:
11.6km/h
- Average wind speed in July:
12.6km/h - Average wind speed in August:
12km/h - Average wind speed in September:
11.8km/h - Average wind speed in October:
12.7km/h - Average wind speed in November:
11.3km/h - Average wind speed in December:
12.6km/h
The windiest month (with the highest average wind speed) is April (14.6km/h).
The calmest month (with the lowest average wind speed) is November (11.3km/h).
Average humidity
Shiroi, Japan
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (61%).
Average rainfall
Shiroi, Japan
The wettest month (with the highest rainfall) is October (58mm).
The driest month (with the least rainfall) is January (18mm).
Average rainfall days
Shiroi, Japan
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
13.7 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
11.3 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
13 days - Average rainfall days in August:
12.7 days - Average rainfall days in September:
13.6 days - Average rainfall days in October:
15.5 days - Average rainfall days in November:
11.2 days - Average rainfall days in December:
9.4 days
The month with the highest number of rainy days is October (15.5 days).
The month with the least rainy days is January (7.3 days).
Average snowfall
Shiroi, Japan
The month with the highest snowfall is February (28mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days
Shiroi, Japan
- Average snowfall days in January:
1.8 days - Average snowfall days in February:
2.8 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:
0.1 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Shiroi, 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 2min - Average sunshine in February:
5h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 0min - Average sunshine in June:
8h and 1min
- Average sunshine in July:
8h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
7h and 3min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
6h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days
Shiroi, Japan
- Average sunshine days in January:
22 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
17.9 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
15.6 days - Average sunshine days in August:
16.1 days - Average sunshine days in September:
12.7 days - Average sunshine days in October:
13.2 days - Average sunshine days in November:
16 days - Average sunshine days in December:
19.4 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is September (12.7 days).
Average UV index
Shiroi, 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
Shiroi, Japan
The month with the most cloud cover is June (Cloud cover 48).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility
Shiroi, Japan
The months with the highest visibility are January, February, March, April, May, September, October, November and December (10km).
The months with the lowest visibility are June, July and August (9km).
