September weather forecastOwariasahi, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Owariasahi, Japan, with an average temperature varying between 27.9°C (82.2°F) and 19.8°C (67.6°F).Temperature
September's arrival signals a moderate reduction in the average high-temperature, easing from a tropical 32.5°C (90.5°F) in August to a warm 27.9°C (82.2°F). Throughout the nights in September, Owariasahi experiences an average low-temperature of 19.8°C (67.6°F).Heat index
September's heat index is appraised at a hot 31°C (87.8°F). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
The average relative humidity in September is 74%.Rainfall
In Owariasahi, in September, during 14.1 rainfall days, 119mm (4.69") of precipitation is typically accumulated. In Owariasahi, Japan, during the entire year, the rain falls for 157.7 days and collects up to 1112mm (43.78") of precipitation.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of September in Owariasahi, sunrise is at 05:24 and sunset at 18:19. On the last day of the month, sunrise is at 05:45 and sunset at 17:37 JST.
Sunshine
In September, the average sunshine is 8.8h.UV index
The average daily maximum UV index in September in Owariasahi is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 suggests this advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Owariasahi, Japan
- Average high temperature in September: 27.9°C
The warmest month (with the highest average high temperature) is August (32.5°C).
The month with the lowest average high temperature is January (7.5°C).
- Average low temperature in September: 19.8°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 (0.8°C).
Average pressure in September
Owariasahi, Japan
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Owariasahi, Japan
- Average wind speed in September: 8km/h
The windiest month (with the highest average wind speed) is March (10.2km/h).
The calmest months (with the lowest average wind speed) are June and July (7.7km/h).
Average humidity in September
Owariasahi, Japan
- Average humidity in September: 74%
The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is May (68%).
Average rainfall in September
Owariasahi, Japan
- Average rainfall in September: 119mm
The wettest month (with the highest rainfall) is July (195mm).
The driest month (with the least rainfall) is January (34mm).
Average rainfall days in September
Owariasahi, Japan
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in September
Owariasahi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (26mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Owariasahi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Owariasahi, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in September
Owariasahi, Japan
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Owariasahi, 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
Owariasahi, Japan
- Average cloud cover in September: 36
The month with the most cloud cover is July (Cloud cover 44).
The month with the least cloud cover is November (Cloud cover 31).
Average visibility in September
Owariasahi, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
