September weather forecastRusutsu, Japan
September
Weather in September
September, the first month of the autumn in Rusutsu, is also an enjoyable month, with an average temperature ranging between min 12.3°C (54.1°F) and max 19.7°C (67.5°F).Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a moderately hot 23.3°C (73.9°F) in August to an enjoyable 19.7°C (67.5°F). Rusutsu records a steady low-temperature average of 12.3°C (54.1°F) during September.Humidity
In September, the average relative humidity in Rusutsu is 84%.Rainfall
In September, in Rusutsu, the rain falls for 18.4 days. Throughout September, 87mm (3.43") of precipitation is accumulated. In Rusutsu, during the entire year, the rain falls for 157.6 days and collects up to 900mm (35.43") of precipitation.Snowfall
In Rusutsu, snow does not fall in June through September.Daylight
In September, the average length of the day in Rusutsu is 12h and 31min.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 Rusutsu is 7.5h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rusutsu, Japan
- Average high temperature in September: 19.7°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (-8.9°C).
Average pressure in September
Rusutsu, Japan
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is November (1016.4mbar).
The month with the lowest atmospheric pressure is July (1008.4mbar).
Average wind speed in September
Rusutsu, Japan
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in September
Rusutsu, Japan
- Average humidity in September: 84%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (79%).
Average rainfall in September
Rusutsu, Japan
- Average rainfall in September: 87mm
The wettest month (with the highest rainfall) is August (105mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in September
Rusutsu, Japan
- Average rainfall days in September: 18.4 days
The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in September
Rusutsu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is December (598mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Rusutsu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (28.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rusutsu, 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 months with the most sunshine are May and August (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in September
Rusutsu, Japan
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is May (13.3 days).
The month with the least sunshine days is January (2.7 days).
Average UV index in September
Rusutsu, 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, March, November and December (UV index 1).
Average cloud cover in September
Rusutsu, Japan
- Average cloud cover in September: 45
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is September (Cloud cover 45).
Average visibility in September
Rusutsu, Japan
- Average visibility in September: 8km
The months with the highest visibility are April, May and October (9km).
The months with the lowest visibility are January, February, July, August and December (7km).
