September weather forecastTobetsu, Japan
September
Weather in September
September, the first month of the autumn in Tobetsu, is still a pleasant month, with an average temperature fluctuating between 13.5°C (56.3°F) and 20.3°C (68.5°F).Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 23.7°C (74.7°F) in August to a pleasant 20.3°C (68.5°F). An average nighttime temperature of 13.5°C (56.3°F) is recorded during September.Humidity
In September, the average relative humidity is 82%.Rainfall
In September, in Tobetsu, the rain falls for 18 days. Throughout September, 90mm (3.54") of precipitation is accumulated. Throughout the year, in Tobetsu, there are 170.5 rainfall days, and 861mm (33.9") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Tobetsu.Daylight
In September, the average length of the day in Tobetsu is 12h and 31min.On the first day of the month, sunrise is at 04:58 and sunset at 18:09. On the last day of September, in Tobetsu, sunrise is at 05:30 and sunset at 17:17 JST.
Sunshine
The average sunshine in September in Tobetsu is 8h.UV index
In Tobetsu, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tobetsu, Japan
- Average high temperature in September: 20.3°C
The warmest month (with the highest average high temperature) is August (23.7°C).
The month with the lowest average high temperature is January (-2.8°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is August (17°C).
The coldest month (with the lowest average low temperature) is February (-8.5°C).
Average pressure in September
Tobetsu, Japan
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is November (1016mbar).
The month with the lowest atmospheric pressure is July (1008.5mbar).
Average wind speed in September
Tobetsu, Japan
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is December (16.9km/h).
The calmest months (with the lowest average wind speed) are July and August (10.1km/h).
Average humidity in September
Tobetsu, Japan
- Average humidity in September: 82%
The months with the highest relative humidity are January and July (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in September
Tobetsu, Japan
- Average rainfall in September: 90mm
The wettest month (with the highest rainfall) is August (123mm).
The driest month (with the least rainfall) is April (45mm).
Average rainfall days in September
Tobetsu, Japan
- Average rainfall days in September: 18 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in September
Tobetsu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (377mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Tobetsu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (27.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tobetsu, 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 0min).
- Average sunshine in September: 8h
The months with the most sunshine are May and August (Average sunshine: 9h).
The month with the least sunshine is January (Average sunshine: 2h).
Average sunshine days in September
Tobetsu, Japan
- Average sunshine days in September: 8.3 days
The month with the most sunshine days is May (12.1 days).
The month with the least sunshine days is December (2.2 days).
Average UV index in September
Tobetsu, 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
Tobetsu, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 81).
The month with the least cloud cover is September (Cloud cover 39).
Average visibility in September
Tobetsu, Japan
- Average visibility in September: 9km
The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February and December (7km).
