September weather forecastOwani, Japan
September
Weather in September
September, the first month of the autumn in Owani, is also an agreeable month, with an average temperature ranging between min 14.4°C (57.9°F) and max 22.4°C (72.3°F).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a pleasant 22.4°C (72.3°F) from a warm 26.4°C (79.5°F). Owani encounters a steady low-temperature average of 14.4°C (57.9°F) throughout the month of September.Humidity
In September, the average relative humidity is 82%.Rainfall
In September, in Owani, the rain falls for 17.1 days. Throughout September, 94mm (3.7") of precipitation is accumulated. Throughout the year, there are 175.2 rainfall days, and 961mm (37.83") of precipitation is accumulated.Snowfall
In Owani, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 05:05 and sunset at 18:10. On the last day of September, in Owani, sunrise is at 05:33 and sunset at 17:22 JST.
Sunshine
In Owani, the average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Owani is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Owani, Japan
- Average high temperature in September: 22.4°C
The warmest month (with the highest average high temperature) is August (26.4°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is February (-6.2°C).
Average pressure in September
Owani, Japan
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is November (1017.6mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).
Average wind speed in September
Owani, Japan
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is December (15.4km/h).
The calmest month (with the lowest average wind speed) is July (8.6km/h).
Average humidity in September
Owani, Japan
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Owani, Japan
- Average rainfall in September: 94mm
The wettest month (with the highest rainfall) is July (119mm).
The driest month (with the least rainfall) is May (49mm).
Average rainfall days in September
Owani, Japan
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in September
Owani, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is December (486mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Owani, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (26.3 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
Owani, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is August (Average sunshine: 8h and 54min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in September
Owani, Japan
- Average sunshine days in September: 10.1 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is January (2.2 days).
Average UV index in September
Owani, 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, February, November and December (UV index 1).
Average cloud cover in September
Owani, Japan
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in September
Owani, Japan
- Average visibility in September: 8km
The months with the highest visibility are April, May, October and November (9km).
The months with the lowest visibility are January, February and July (7km).





