September weather forecastOtera, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Otera, Japan, with temperature in the range of an average low of 21.6°C (70.9°F) and an average high of 25.7°C (78.3°F).Temperature
Transition into September subtly marks a drop in the average high-temperature, moderately moving from a moderately hot 29.2°C (84.6°F) in August to a still warm 25.7°C (78.3°F). Night temperatures during September stabilize at an average of 21.6°C (70.9°F), closely mirroring the daytime temperatures.Humidity
The average relative humidity in September is 78%.Rainfall
In Otera, Japan, in September, it is raining for 17.1 days, with typically 101mm (3.98") of accumulated precipitation. Throughout the year, there are 166.3 rainfall days, and 700mm (27.56") of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 05:35 and sunset at 18:28. On the last day of the month, sunrise is at 05:56 and sunset at 17:48 JST.
Sunshine
In Otera, the average sunshine in September is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 5 in September transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Otera, Japan
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in September: 21.6°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (4.8°C).
Average pressure in September
Otera, Japan
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is January (1020.1mbar).
The month with the lowest atmospheric pressure is June (1008.6mbar).
Average wind speed in September
Otera, Japan
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is January (20.5km/h).
The calmest month (with the lowest average wind speed) is June (10.1km/h).
Average humidity in September
Otera, Japan
- Average humidity in September: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is January (69%).
Average rainfall in September
Otera, Japan
- Average rainfall in September: 101mm
The wettest month (with the highest rainfall) is July (112mm).
The driest months (with the least rainfall) are January and February (24mm).
Average rainfall days in September
Otera, Japan
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is July (20.7 days).
The months with the least rainy days are January and February (10 days).
Average snowfall in September
Otera, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Otera, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.9 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
Otera, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in September
Otera, Japan
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is May (17.5 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in September
Otera, Japan
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Otera, Japan
- Average cloud cover in September: 37
The month with the most cloud cover is June (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Otera, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
