September weather forecastKiyosu, Japan
September weather forecast for Kiyosu, Japan: The first month of the autumn, September, is still a warm month in Kiyosu, Japan, with temperature in the range of an average low of 19.4°C (66.9°F) and an average high of 27.5°C (81.5°F). On the first day of September in Kiyosu, Japan, sunrise is at 05:25 and sunset at 18:19.
September
Weather in September
The first month of the autumn, September, is still a warm month in Kiyosu, Japan, with temperature in the range of an average low of 19.4°C (66.9°F) and an average high of 27.5°C (81.5°F).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a hot 32.3°C (90.1°F) in August to a warm 27.5°C (81.5°F). The nights of September anticipate an average low-temperature of 19.4°C (66.9°F).Heat index
For most parts of September, the heat index is computed to be a hot 30°C (86°F). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In Kiyosu, the average relative humidity in September is 75%.Rainfall
In Kiyosu, during September, the rain falls for 12.8 days and regularly aggregates up to 80mm (3.15") of precipitation. Throughout the year, there are 128.6 rainfall days, and 730mm (28.74") of precipitation is accumulated.Snowfall
March through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Kiyosu, Japan, 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 Kiyosu, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 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
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).
