Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The advent of September brings a slight shift in average high-temperature, moving from a tropical 32.3°C (90.1°F) in August to a warm 27.5°C (81.5°F). Throughout the month of September, Kiyosu witnesses an average temperature of 19.4°C (66.9°F).Heat index
The heat index for September is estimated at a hot 30°C (86°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Be advised, the heat index considers values for conditions in shade and with a light breeze. 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', arises from combining readings of air temperature and relative moisture content. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
In Kiyosu, the average relative humidity in September is 75%.Rainfall
In Kiyosu, in September, it is raining for 12.8 days, with typically 80mm (3.15") of accumulated precipitation. In Kiyosu, during the entire year, the rain falls for 128.6 days and collects up to 730mm (28.74") of precipitation.Snowfall
March through November are months without snowfall in Kiyosu.Daylight
In Kiyosu, the average length of the day in September is 12h and 25min.On the first day of September in Kiyosu, sunrise is at 05:25 and sunset at 18:19. On the last day of the month, sunrise is at 05:46 and sunset at 17:38 JST.
Sunshine
In September, the average sunshine in Kiyosu is 8.8h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What is the average September temperature in Kiyosu?
What is the average humidity in September in Kiyosu?
How much does it rain in Kiyosu in September?
When it does not snow in Kiyosu?
How many hours of daylight does Kiyosu have in September?
When is the sunrise / sunset in September in Kiyosu?
How many hours of sunshine does Kiyosu have in September?
What is the UV index intensity in September in Kiyosu?
Average temperature in September
Kiyosu, Japan
- Average high temperature in September: 27.5°C
The warmest month (with the highest average high temperature) is August (32.3°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in September: 19.4°C
The month with the highest average low temperature is August (23.6°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Kiyosu, Japan
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is November (1019.2mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in September
Kiyosu, Japan
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is March (9.2km/h).
The calmest month (with the lowest average wind speed) is July (7km/h).
Average humidity in September
Kiyosu, Japan
- Average humidity in September: 75%
The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is May (69%).
Average rainfall in September
Kiyosu, Japan
- Average rainfall in September: 80mm
The wettest month (with the highest rainfall) is July (133mm).
The driest month (with the least rainfall) is January (17mm).
Average rainfall days in September
Kiyosu, Japan
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Kiyosu, Japan
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Kiyosu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.8 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Kiyosu, Japan
- Average daylight in September: 12h and 2min
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 5min
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
Kiyosu, Japan
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Kiyosu, 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
Kiyosu, Japan
- Average cloud cover in September: 36
The month with the most cloud cover is July (Cloud cover 45).
The month with the least cloud cover is November (Cloud cover 31).
Average visibility in September
Kiyosu, 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).
Kiyosu, Japan
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