Climate and monthly weather forecastShirowa, Japan
Climate and monthly weather forecast
Weather in January
January, the same as December, is a cool winter month in Shirowa, Japan, with an average temperature varying between 10.3°C (50.5°F) and 6.6°C (43.9°F). With average high temperatures of 10.3°C (50.5°F) and lows of 6.6°C (43.9°F), January is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a fresh month in Shirowa, Japan, with an average temperature ranging between max 11.1°C (52°F) and min 7.2°C (45°F). The onset of February brings an average high-temperature of a still cool 11.1°C (52°F), nearly matching the January temperature. Weather in February »Weather in March
March, the first month of the spring in Shirowa, is a mild month, with temperature in the range of an average low of 9.3°C (48.7°F) and an average high of 13.5°C (56.3°F). March's onset records an average high-temperature of a moderate 13.5°C (56.3°F), a near match to February's 11.1°C (52°F). Weather in March »Weather in April
April in Shirowa, Japan, is an enjoyable spring month, with temperature in the range of an average low of 13.3°C (55.9°F) and an average high of 16.8°C (62.2°F). In Shirowa, the average high-temperature in April slightly rises, from a moderate 13.5°C (56.3°F) in March, to a still refreshing 16.8°C (62.2°F). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Shirowa, Japan, with an average temperature ranging between max 20.4°C (68.7°F) and min 17.5°C (63.5°F). The shift from April to May sees a slight increase in the average high-temperature, transitioning from an enjoyable 16.8°C (62.2°F) to a pleasant 20.4°C (68.7°F). Weather in May »Weather in June
June, the first month of the summer in Shirowa, is a warm month, with an average temperature varying between 23.1°C (73.6°F) and 20.4°C (68.7°F). The arrival of June marks a slight shift to an average high-temperature of a moderately hot 23.1°C (73.6°F) from May's 20.4°C (68.7°F). Weather in June »Weather in July
July, like June, in Shirowa, Japan, is a moderately hot summer month, with an average temperature fluctuating between 24.2°C (75.6°F) and 26.6°C (79.9°F). As July sets, the average high-temperature shows a slight increase, moving up from a moderately hot 23.1°C (73.6°F) in June to a still warm 26.6°C (79.9°F). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Shirowa, Japan, with an average temperature varying between 25.8°C (78.4°F) and 28.3°C (82.9°F). August, known for its average high temperature of 28.3°C (82.9°F) and an average low temperature of 25.8°C (78.4°F), is the warmest month. The heat index value during August is computed to be a hot 33°C (91.4°F). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Shirowa, Japan, with an average temperature varying between 23.1°C (73.6°F) and 25.8°C (78.4°F). Upon the beginning of September, Shirowa's high-temperatures register at a still warm 25.8°C (78.4°F), closely mirroring the preceding month. Weather in September »Weather in October
October, like September, is another pleasant autumn month in Shirowa, Japan, with an average temperature varying between 22.1°C (71.8°F) and 19°C (66.2°F). With the arrival of October, Shirowa notices a mild change in the average high-temperature, sliding from September's moderately hot 25.8°C (78.4°F) to an agreeable 22.1°C (71.8°F). Weather in October »Weather in November
November, the last month of the autumn in Shirowa, is another refreshing month, with temperature in the range of an average high of 17.6°C (63.7°F) and an average low of 14.5°C (58.1°F). The start of November involves a subtle temperature drop, shifting from an agreeable 22.1°C (71.8°F) in October to a refreshing 17.6°C (63.7°F). Weather in November »Weather in December
December, the first month of the winter in Shirowa, is still a cool month, with an average temperature varying between 12.7°C (54.9°F) and 9.1°C (48.4°F). December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's enjoyable 17.6°C (63.7°F) to a fresh 12.7°C (54.9°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Shirowa, Japan
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (10.3°C).
The month with the highest average low temperature is August (25.8°C).
The coldest month (with the lowest average low temperature) is January (6.6°C).
Average pressure
Shirowa, Japan
- Average pressure in January:
1017.2mbar - Average pressure in February:
1017.7mbar - Average pressure in March:
1015.9mbar - Average pressure in April:
1014.4mbar - Average pressure in May:
1012mbar - Average pressure in June:
1009mbar
- Average pressure in July:
1009.8mbar - Average pressure in August:
1010mbar - Average pressure in September:
1012.9mbar - Average pressure in October:
1016.1mbar - Average pressure in November:
1018.2mbar - Average pressure in December:
1017.2mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed
Shirowa, Japan
- Average wind speed in January:
30.6km/h - Average wind speed in February:
26.4km/h - Average wind speed in March:
25.1km/h - Average wind speed in April:
22.8km/h - Average wind speed in May:
18.7km/h - Average wind speed in June:
17.4km/h
- Average wind speed in July:
17.2km/h - Average wind speed in August:
16.6km/h - Average wind speed in September:
18.4km/h - Average wind speed in October:
21.2km/h - Average wind speed in November:
21.4km/h - Average wind speed in December:
28.8km/h
The windiest month (with the highest average wind speed) is January (30.6km/h).
The calmest month (with the lowest average wind speed) is August (16.6km/h).
Average humidity
Shirowa, Japan
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is January (63%).
Average rainfall
Shirowa, Japan
- Average rainfall in January:
39mm - Average rainfall in February:
67mm - Average rainfall in March:
95mm - Average rainfall in April:
105mm - Average rainfall in May:
101mm - Average rainfall in June:
162mm
The wettest month (with the highest rainfall) is July (207mm).
The driest month (with the least rainfall) is January (39mm).
Average rainfall days
Shirowa, Japan
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
11.6 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
12.3 days - Average rainfall days in June:
17.7 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
16.9 days - Average rainfall days in September:
16.6 days - Average rainfall days in October:
14.5 days - Average rainfall days in November:
12.9 days - Average rainfall days in December:
11 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall days
Shirowa, Japan
- Average snowfall days in January:
0.1 days - Average snowfall days in February:
0.1 days - Average snowfall days in March:
0 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 months with the highest number of snowfall days are January, February and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Shirowa, Japan
- Average daylight in January:
10h and 6min - 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 0min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 12min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in January:
6h and 30min - Average sunshine in February:
5h and 54min - Average sunshine in March:
7h and 12min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 36min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
9h and 30min - Average sunshine in August:
11h and 6min - Average sunshine in September:
8h and 48min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 0min - Average sunshine in December:
6h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days
Shirowa, Japan
- Average sunshine days in January:
21.7 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
16.8 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
9.9 days - Average sunshine days in August:
11.3 days - Average sunshine days in September:
11 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
15.9 days - Average sunshine days in December:
18 days
The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is June (9.6 days).
Average UV index
Shirowa, Japan
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover
Shirowa, Japan
The month with the most cloud cover is June (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 24).
Average visibility
Shirowa, Japan
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).








