September weather forecastSakaidecho, Japan
September
Weather in September
September, the first month of the autumn in Sakaidecho, is still a warm month, with an average temperature ranging between min 20.1°C (68.2°F) and max 25.6°C (78.1°F).Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's warm 29.8°C (85.6°F) to a still moderately hot 25.6°C (78.1°F). In Sakaidecho, the expected average low-temperature for September is an agreeable 20.1°C (68.2°F).Humidity
The average relative humidity in September is 78%.Rainfall
In Sakaidecho, in September, during 17.5 rainfall days, 117mm (4.61") of precipitation is typically accumulated. In Sakaidecho, Japan, during the entire year, the rain falls for 170.9 days and collects up to 863mm (33.98") of precipitation.Snowfall
March through November are months without snowfall.Daylight
The average length of the day in September in Sakaidecho is 12h and 24min.On the first day of the month, sunrise is at 05:38 and sunset at 18:31. On the last day of September, sunrise is at 05:58 and sunset at 17:50 JST.
Sunshine
The average sunshine in September is 9.2h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sakaidecho, Japan
- Average high temperature in September: 25.6°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (7.6°C).
- Average low temperature in September: 20.1°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (2.5°C).
Average pressure in September
Sakaidecho, Japan
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is January (1020.5mbar).
The month with the lowest atmospheric pressure is June (1008.5mbar).
Average wind speed in September
Sakaidecho, Japan
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is January (14km/h).
The calmest month (with the lowest average wind speed) is June (7.3km/h).
Average humidity in September
Sakaidecho, Japan
- Average humidity in September: 78%
The month with the highest relative humidity is July (81%).
The months with the lowest relative humidity are March and April (70%).
Average rainfall in September
Sakaidecho, Japan
- Average rainfall in September: 117mm
The wettest month (with the highest rainfall) is July (145mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in September
Sakaidecho, Japan
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in September
Sakaidecho, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (21mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Sakaidecho, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Sakaidecho, Japan
- Average daylight in September: 12h and 24min
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 September: 9h and 12min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Sakaidecho, Japan
- Average sunshine days in September: 8.8 days
The month with the most sunshine days is May (18 days).
The month with the least sunshine days is July (4.8 days).
Average UV index in September
Sakaidecho, Japan
- Average UV index in September: 5
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 2).
Average cloud cover in September
Sakaidecho, Japan
- Average cloud cover in September: 37
The months with the most cloud cover are January, February and December (Cloud cover 40).
The months with the least cloud cover are May and August (Cloud cover 30).
Average visibility in September
Sakaidecho, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, May, August, September, October, November and December (10km).
The months with the lowest visibility are April, June and July (9km).





