September weather forecastAkaigawa, Japan
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Akaigawa, Japan, with temperature in the range of an average low of 12.3°C (54.1°F) and an average high of 19.7°C (67.5°F).Temperature
Akaigawa's progression into September involves a minor drop in the average high-temperature, slightly receding from a moderately hot 23.3°C (73.9°F) in August to an enjoyable 19.7°C (67.5°F). During September, the temperature tends to dip to an average of 12.3°C (54.1°F) at night.Humidity
In September, the average relative humidity in Akaigawa, Japan, is 84%.Rainfall
In Akaigawa, Japan, during September, the rain falls for 18.4 days and regularly aggregates up to 87mm (3.43") of precipitation. Throughout the year, there are 157.6 rainfall days, and 900mm (35.43") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Akaigawa.Daylight
The average length of the day in September in Akaigawa is 12h and 31min.On the first day of the month, sunrise is at 05:01 and sunset at 18:12. On the last day of September, sunrise is at 05:33 and sunset at 17:20 JST.
Sunshine
In Akaigawa, the average sunshine in September is 7.5h.UV index
In September, the average daily maximum UV index in Akaigawa is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Akaigawa, Japan
- Average high temperature in September: 19.7°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (-3.8°C).
- Average low temperature in September: 12.3°C
The month with the highest average low temperature is August (16.1°C).
The coldest month (with the lowest average low temperature) is February (-8.9°C).
Average pressure in September
Akaigawa, Japan
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is November (1016.4mbar).
The month with the lowest atmospheric pressure is July (1008.4mbar).
Average wind speed in September
Akaigawa, Japan
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is December (14.5km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in September
Akaigawa, Japan
- Average humidity in September: 84%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (79%).
Average rainfall in September
Akaigawa, Japan
- Average rainfall in September: 87mm
The wettest month (with the highest rainfall) is August (105mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in September
Akaigawa, Japan
- Average rainfall days in September: 18.4 days
The month with the highest number of rainy days is August (19.1 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in September
Akaigawa, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is December (598mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Akaigawa, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (28.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Akaigawa, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 7h and 30min
The months with the most sunshine are May and August (Average sunshine: 8h and 24min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in September
Akaigawa, Japan
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is May (13.3 days).
The month with the least sunshine days is January (2.7 days).
Average UV index in September
Akaigawa, Japan
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Akaigawa, Japan
- Average cloud cover in September: 45
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is September (Cloud cover 45).
Average visibility in September
Akaigawa, Japan
- Average visibility in September: 8km
The months with the highest visibility are April, May and October (9km).
The months with the lowest visibility are January, February, July, August and December (7km).
