September weather forecastFutatsugi, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Futatsugi, Japan, with an average temperature fluctuating between 20.7°C (69.3°F) and 27.2°C (81°F).Temperature
Futatsugi's weather subtly changes with the onset of September, barely falling from a tropical 31.5°C (88.7°F) in August to a warm 27.2°C (81°F). In the month of September, the temperature generally rests at an average low of 20.7°C (69.3°F).Heat index
September's average heat index is computed to be a tropical 30°C (86°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Futatsugi, in September, during 13 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Futatsugi, during the entire year, the rain falls for 136.1 days and collects up to 307mm (12.09") of precipitation.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 05:12 and sunset at 18:08. On the last day of the month, sunrise is at 05:34 and sunset at 17:25 JST.
Sunshine
The average sunshine in September is 7.5h.UV index
In Futatsugi, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Futatsugi, Japan
- Average high temperature in September: 27.2°C
The warmest month (with the highest average high temperature) is August (31.5°C).
The month with the lowest average high temperature is January (8.6°C).
- Average low temperature in September: 20.7°C
The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure in September
Futatsugi, Japan
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is November (1018.2mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Futatsugi, Japan
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is April (13.3km/h).
The calmest month (with the lowest average wind speed) is November (10.1km/h).
Average humidity in September
Futatsugi, Japan
- Average humidity in September: 75%
The month with the highest relative humidity is July (78%).
The month with the lowest relative humidity is January (60%).
Average rainfall in September
Futatsugi, Japan
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is October (40mm).
The driest month (with the least rainfall) is January (12mm).
Average rainfall days in September
Futatsugi, Japan
- Average rainfall days in September: 13 days
The months with the highest number of rainy days are June and October (14.2 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in September
Futatsugi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (14mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Futatsugi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Futatsugi, 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: 7h and 30min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in September
Futatsugi, Japan
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in September
Futatsugi, 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
Futatsugi, Japan
- Average cloud cover in September: 42
The month with the most cloud cover is June (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 28).
Average visibility in September
Futatsugi, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are June, July, August, September and October (9km).
