September weather forecastSetana, Japan
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Setana, Japan, with an average temperature varying between 20.6°C (69.1°F) and 15.4°C (59.7°F).Temperature
Setana notes an average high-temperature of a pleasant 20.6°C (69.1°F) in September, displaying minor variation from August. September brings an average low-temperature of 15.4°C (59.7°F) to Setana.Humidity
In September, the average relative humidity in Setana, Japan, is 79%.Rainfall
In Setana, in September, it is raining for 16.1 days, with typically 75mm (2.95") of accumulated precipitation. Throughout the year, there are 149.3 rainfall days, and 817mm (32.17") of precipitation is accumulated.Snowfall
May through September are months without snowfall in Setana, Japan.Daylight
In September, the average length of the day in Setana is 12h and 30min.On the first day of September, sunrise is at 05:05 and sunset at 18:15. On the last day of the month, sunrise is at 05:36 and sunset at 17:24 JST.
Sunshine
The average sunshine in September in Setana is 8.4h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 5 turns into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Setana, Japan
- Average high temperature in September: 20.6°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (-1.7°C).
- Average low temperature in September: 15.4°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 (-5.5°C).
Average pressure in September
Setana, Japan
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is November (1016.5mbar).
The month with the lowest atmospheric pressure is July (1008.3mbar).
Average wind speed in September
Setana, Japan
- Average wind speed in September: 13.7km/h
The windiest month (with the highest average wind speed) is December (21.6km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in September
Setana, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Setana, Japan
- Average rainfall in September: 75mm
The wettest month (with the highest rainfall) is December (101mm).
The driest month (with the least rainfall) is April (46mm).
Average rainfall days in September
Setana, Japan
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in September
Setana, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is December (301mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Setana, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (24 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
Setana, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Setana, Japan
- Average sunshine days in September: 10.2 days
The month with the most sunshine days is May (15.2 days).
The month with the least sunshine days is December (2.5 days).
Average UV index in September
Setana, Japan
- Average UV index in September: 5
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Setana, Japan
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 84).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in September
Setana, Japan
- Average visibility in September: 10km
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are January and December (7km).





