September weather forecastOshu, Japan
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Oshu, Japan, with temperature in the range of an average low of 14.3°C (57.7°F) and an average high of 22.5°C (72.5°F).Temperature
With the onset of September, Oshu's climate undergoes a slight change as the average high-temperature moves from a moderately hot 26.8°C (80.2°F) in August to a pleasant 22.5°C (72.5°F). Oshu records an average low-temperature of 14.3°C (57.7°F) throughout the month of September.Humidity
In Oshu, the average relative humidity in September is 86%.Rainfall
In Oshu, in September, during 12.9 rainfall days, 61mm (2.4") of precipitation is typically accumulated. Throughout the year, in Oshu, there are 167.6 rainfall days, and 793mm (31.22") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day in Oshu is 12h and 28min.On the first day of September, sunrise is at 05:04 and sunset at 18:06. On the last day of the month, sunrise is at 05:30 and sunset at 17:20 JST.
Sunshine
In September, the average sunshine is 7.1h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Oshu, Japan
- Average high temperature in September: 22.5°C
The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is January (0.4°C).
- Average low temperature in September: 14.3°C
The month with the highest average low temperature is August (18.4°C).
The coldest month (with the lowest average low temperature) is February (-5.9°C).
Average pressure in September
Oshu, Japan
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is November (1018.3mbar).
The month with the lowest atmospheric pressure is July (1009.2mbar).
Average wind speed in September
Oshu, Japan
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is January (12.2km/h).
The calmest month (with the lowest average wind speed) is August (6.8km/h).
Average humidity in September
Oshu, Japan
- Average humidity in September: 86%
The months with the highest relative humidity are January and July (87%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in September
Oshu, Japan
- Average rainfall in September: 61mm
The wettest month (with the highest rainfall) is October (108mm).
The driest month (with the least rainfall) is November (41mm).
Average rainfall days in September
Oshu, Japan
- Average rainfall days in September: 12.9 days
The months with the highest number of rainy days are July and December (16.4 days).
The month with the least rainy days is May (11.4 days).
Average snowfall in September
Oshu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (221mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Oshu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Oshu, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 7h and 6min
The month with the most sunshine is May (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Oshu, Japan
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is May (17.5 days).
The month with the least sunshine days is January (3.9 days).
Average UV index in September
Oshu, Japan
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Oshu, Japan
- Average cloud cover in September: 48
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is October (Cloud cover 42).
Average visibility in September
Oshu, Japan
- Average visibility in September: 7km
The months with the highest visibility are March, April and November (9km).
The months with the lowest visibility are January, July, August and September (7km).
