September weather forecastSadamitsu, Japan
September
Weather in September
September, the first month of the autumn in Sadamitsu, is also a moderately hot month, with temperature in the range of an average high of 25.6°C (78.1°F) and an average low of 20.5°C (68.9°F).Temperature
The arrival of September signals a subtle shift in temperature, down from a moderately hot 29.8°C (85.6°F) in August to a still warm 25.6°C (78.1°F). In Sadamitsu, in September, the average low-temperature is an agreeable 20.5°C (68.9°F).Humidity
The average relative humidity in September is 78%.Rainfall
In Sadamitsu, in September, it is raining for 18.1 days, with typically 102mm (4.02") of accumulated precipitation. Throughout the year, in Sadamitsu, there are 180.2 rainfall days, and 722mm (28.43") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Sadamitsu.Daylight
In September, the average length of the day in Sadamitsu is 12h and 23min.On the first day of the month, sunrise is at 05:37 and sunset at 18:30. On the last day of September, in Sadamitsu, sunrise is at 05:57 and sunset at 17:49 JST.
Sunshine
In September, the average sunshine in Sadamitsu is 8.9h.UV index
In September, the average daily maximum UV index in Sadamitsu, Japan, is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 6 during September translates into these guidelines:
Fend off overexposure. Sun protection is vital. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sadamitsu, 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: 20.5°C
The month with the highest average low temperature is August (24.4°C).
The coldest month (with the lowest average low temperature) is January (3°C).
Average pressure in September
Sadamitsu, Japan
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is January (1020.3mbar).
The month with the lowest atmospheric pressure is June (1008.5mbar).
Average wind speed in September
Sadamitsu, Japan
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is January (16km/h).
The calmest month (with the lowest average wind speed) is June (8km/h).
Average humidity in September
Sadamitsu, 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
Sadamitsu, Japan
- Average rainfall in September: 102mm
The wettest month (with the highest rainfall) is July (112mm).
The driest month (with the least rainfall) is February (26mm).
Average rainfall days in September
Sadamitsu, Japan
- Average rainfall days in September: 18.1 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is May (11.3 days).
Average snowfall in September
Sadamitsu, Japan
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (17mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Sadamitsu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.6 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
Sadamitsu, 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: 8h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Sadamitsu, Japan
- Average sunshine days in September: 9 days
The month with the most sunshine days is May (17.6 days).
The month with the least sunshine days is July (5.2 days).
Average UV index in September
Sadamitsu, Japan
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Sadamitsu, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is May (Cloud cover 31).
Average visibility in September
Sadamitsu, Japan
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (10km).
The months with the lowest visibility are January and July (9km).
