September weather forecastSugadaira, Japan
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Sugadaira, Japan, with an average temperature varying between 12.7°C (54.9°F) and 22.7°C (72.9°F).Temperature
September brings a decrease in the average high-temperature, falling from August's moderately hot 27.8°C (82°F) to an agreeable 22.7°C (72.9°F). An average low-temperature of 12.7°C (54.9°F) is recorded during the nights in September.Humidity
In September, the average relative humidity in Sugadaira is 82%.Rainfall
In September, in Sugadaira, the rain falls for 19.3 days. Throughout September, 93mm (3.66") of precipitation is accumulated. Throughout the year, there are 224.3 rainfall days, and 1124mm (44.25") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Sugadaira, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:18 and sunset at 18:15. On the last day of the month, sunrise is at 05:41 and sunset at 17:32 JST.
Sunshine
The average sunshine in September is 8.2h.UV index
In Sugadaira, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sugadaira, Japan
- Average high temperature in September: 22.7°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (0.1°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is January (-7.8°C).
Average pressure in September
Sugadaira, Japan
- Average pressure in September: 1013.8mbar
The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Sugadaira, Japan
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is March (8.5km/h).
The calmest month (with the lowest average wind speed) is August (5.5km/h).
Average humidity in September
Sugadaira, Japan
- Average humidity in September: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Sugadaira, Japan
- Average rainfall in September: 93mm
The wettest month (with the highest rainfall) is July (180mm).
The driest month (with the least rainfall) is November (58mm).
Average rainfall days in September
Sugadaira, Japan
- Average rainfall days in September: 19.3 days
The month with the highest number of rainy days is July (25.8 days).
The month with the least rainy days is February (13.6 days).
Average snowfall in September
Sugadaira, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (354mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Sugadaira, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (20.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sugadaira, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 12min
The months with the most sunshine are May and August (Average sunshine: 10h and 18min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Sugadaira, Japan
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is October (11.5 days).
The month with the least sunshine days is July (3.4 days).
Average UV index in September
Sugadaira, Japan
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Sugadaira, Japan
- Average cloud cover in September: 48
The months with the most cloud cover are July and September (Cloud cover 48).
The month with the least cloud cover is May (Cloud cover 34).
Average visibility in September
Sugadaira, Japan
- Average visibility in September: 7km
The months with the highest visibility are April and May (9km).
The months with the lowest visibility are January, July, August and September (7km).
