September weather forecastSobetsu, Japan
September
Weather in September
September, the first month of the autumn in Sobetsu, is still a pleasant month, with an average temperature fluctuating between 20.3°C (68.5°F) and 13.9°C (57°F).Temperature
In September, the average high-temperature marginally drops from a warm 23.5°C (74.3°F) in August to a pleasant 20.3°C (68.5°F). Sobetsu, during the nights of September, experiences an average temperature drop to a mild 13.9°C (57°F).Humidity
The average relative humidity in September is 82%.Rainfall
In Sobetsu, during September, the rain falls for 15.7 days and regularly aggregates up to 74mm (2.91") of precipitation. In Sobetsu, during the entire year, the rain falls for 168.4 days and collects up to 779mm (30.67") of precipitation.Snowfall
May through October are months without snowfall in Sobetsu.Daylight
In Sobetsu, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 05:01 and sunset at 18:11. On the last day of September, sunrise is at 05:32 and sunset at 17:20 JST.
Sunshine
In September, the average sunshine in Sobetsu is 7.5h.UV index
In Sobetsu, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sobetsu, Japan
- Average high temperature in September: 20.3°C
The warmest month (with the highest average high temperature) is August (23.5°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in September: 13.9°C
The month with the highest average low temperature is August (17.4°C).
The coldest month (with the lowest average low temperature) is February (-7.3°C).
Average pressure in September
Sobetsu, Japan
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is November (1016.6mbar).
The month with the lowest atmospheric pressure is July (1008.6mbar).
Average wind speed in September
Sobetsu, Japan
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is December (16.7km/h).
The calmest month (with the lowest average wind speed) is July (9.2km/h).
Average humidity in September
Sobetsu, Japan
- Average humidity in September: 82%
The month with the highest relative humidity is July (88%).
The months with the lowest relative humidity are April and October (78%).
Average rainfall in September
Sobetsu, Japan
- Average rainfall in September: 74mm
The wettest month (with the highest rainfall) is August (102mm).
The driest month (with the least rainfall) is January (44mm).
Average rainfall days in September
Sobetsu, Japan
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (8.7 days).
Average snowfall in September
Sobetsu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (239mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Sobetsu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (24.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sobetsu, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is April (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in September
Sobetsu, Japan
- Average sunshine days in September: 11.2 days
The month with the most sunshine days is October (14.7 days).
The months with the least sunshine days are January and February (4.3 days).
Average UV index in September
Sobetsu, Japan
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in September
Sobetsu, Japan
- Average cloud cover in September: 42
The months with the most cloud cover are January and February (Cloud cover 69).
The month with the least cloud cover is October (Cloud cover 41).
Average visibility in September
Sobetsu, Japan
- Average visibility in September: 9km
The months with the highest visibility are April, May, September, October and November (9km).
The month with the lowest visibility is July (7km).
