September weather forecastUshiku, Japan
September
Weather in September
September, the first month of the autumn in Ushiku, is still a warm month, with an average temperature fluctuating between 26.8°C (80.2°F) and 21°C (69.8°F).Temperature
In Ushiku, entering September brings a subtle temperature decrement, reducing from August's tropical 31.1°C (88°F) to a moderately hot 26.8°C (80.2°F). Ushiku experiences a mean low-temperature of 21°C (69.8°F) during September.Humidity
The average relative humidity in September is 76%.Rainfall
In Ushiku, in September, during 12.3 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Ushiku, during the entire year, the rain falls for 122.6 days and collects up to 240mm (9.45") of precipitation.Snowfall
In Ushiku, snow does not fall in March through December.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 05:11 and sunset at 18:07. On the last day of September, sunrise is at 05:33 and sunset at 17:24 JST.
Sunshine
In September, the average sunshine in Ushiku is 7.5h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 6 turns into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ushiku, Japan
- Average high temperature in September: 26.8°C
The warmest month (with the highest average high temperature) is August (31.1°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in September: 21°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (2.4°C).
Average pressure in September
Ushiku, Japan
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Ushiku, Japan
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is April (14km/h).
The calmest month (with the lowest average wind speed) is November (10.8km/h).
Average humidity in September
Ushiku, Japan
- Average humidity in September: 76%
The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (61%).
Average rainfall in September
Ushiku, Japan
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is October (34mm).
The driest months (with the least rainfall) are January, February and December (10mm).
Average rainfall days in September
Ushiku, Japan
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is June (13.5 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Ushiku, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Ushiku, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Ushiku, 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 48min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Ushiku, Japan
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in September
Ushiku, Japan
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Ushiku, Japan
- Average cloud cover in September: 43
The month with the most cloud cover is June (Cloud cover 48).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in September
Ushiku, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, October, November and December (10km).
The months with the lowest visibility are June, July, August and September (9km).





