September weather forecastSukumo, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Sukumo, Japan, with temperature in the range of an average high of 26.3°C (79.3°F) and an average low of 22.4°C (72.3°F).Temperature
Sukumo in September experiences a gentle temperature dip, with average high-temperatures reducing from 29.3°C (84.7°F) in August to a still moderately hot 26.3°C (79.3°F). A minimal decline in temperature from daytime highs is anticipated in Sukumo throughout the September nights, averaging a pleasant 22.4°C (72.3°F).Humidity
In Sukumo, Japan, the average relative humidity in September is 79%.Rainfall
In Sukumo, Japan, during September, the rain falls for 17.9 days and regularly aggregates up to 124mm (4.88") of precipitation. Throughout the year, there are 173.9 rainfall days, and 1409mm (55.47") of precipitation is accumulated.Snowfall
March through November are months without snowfall.Daylight
The average length of the day in September is 12h and 23min.On the first day of September in Sukumo, sunrise is at 05:43 and sunset at 18:34. On the last day of the month, sunrise is at 06:02 and sunset at 17:55 JST.
Sunshine
In September, the average sunshine is 9.1h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sukumo, Japan
- Average high temperature in September: 26.3°C
The warmest month (with the highest average high temperature) is August (29.3°C).
The month with the lowest average high temperature is January (10.3°C).
- Average low temperature in September: 22.4°C
The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (6.3°C).
Average pressure in September
Sukumo, Japan
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in September
Sukumo, Japan
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is January (18.5km/h).
The calmest month (with the lowest average wind speed) is August (10.6km/h).
Average humidity in September
Sukumo, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January and March (70%).
Average rainfall in September
Sukumo, Japan
- Average rainfall in September: 124mm
The wettest month (with the highest rainfall) is June (225mm).
The driest month (with the least rainfall) is January (44mm).
Average rainfall days in September
Sukumo, Japan
- Average rainfall days in September: 17.9 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is January (11 days).
Average snowfall in September
Sukumo, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Sukumo, Japan
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.4 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
Sukumo, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Sukumo, Japan
- Average sunshine days in September: 10.2 days
The month with the most sunshine days is May (17.2 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in September
Sukumo, 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, February and December (UV index 3).
Average cloud cover in September
Sukumo, Japan
- Average cloud cover in September: 38
The month with the most cloud cover is June (Cloud cover 49).
The month with the least cloud cover is November (Cloud cover 33).
Average visibility in September
Sukumo, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).
