September weather forecastAkai, Japan
September
Weather in September
The first month of the autumn, September, is still a warm month in Akai, Japan, with an average temperature ranging between min 19.3°C (66.7°F) and max 23.5°C (74.3°F).Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to a still moderately hot 23.5°C (74.3°F) from August's warm 26.8°C (80.2°F). September nights witness a slight temperature decrease, averaging at a refreshing 19.3°C (66.7°F).Humidity
The average relative humidity in September is 80%.Rainfall
In Akai, in September, it is raining for 15.8 days, with typically 100mm (3.94") of accumulated precipitation. Throughout the year, there are 152.4 rainfall days, and 861mm (33.9") of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 27min.On the first day of the month, sunrise is at 05:04 and sunset at 18:05. On the last day of September, sunrise is at 05:30 and sunset at 17:19 JST.
Sunshine
In Akai, the average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Akai, Japan
- Average high temperature in September: 23.5°C
The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 19.3°C
The month with the highest average low temperature is August (22°C).
The coldest month (with the lowest average low temperature) is February (0.3°C).
Average pressure in September
Akai, Japan
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is November (1018.5mbar).
The months with the lowest atmospheric pressure are June and July (1009.4mbar).
Average wind speed in September
Akai, Japan
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is January (21.3km/h).
The calmest month (with the lowest average wind speed) is July (11.3km/h).
Average humidity in September
Akai, Japan
- Average humidity in September: 80%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Akai, Japan
- Average rainfall in September: 100mm
The wettest month (with the highest rainfall) is October (122mm).
The driest month (with the least rainfall) is February (29mm).
Average rainfall days in September
Akai, Japan
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is July (18.8 days).
The months with the least rainy days are January and February (6.6 days).
Average snowfall in September
Akai, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (57mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Akai, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Akai, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is May (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Akai, Japan
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is January (19.1 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in September
Akai, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Akai, Japan
- Average cloud cover in September: 42
The month with the most cloud cover is July (Cloud cover 50).
The months with the least cloud cover are May and November (Cloud cover 38).
Average visibility in September
Akai, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, October, November and December (10km).
The months with the lowest visibility are May, June, July, August and September (9km).
