September weather forecastHashihama, Japan
September
Weather in September
September, the first month of the autumn in Hashihama, is also a moderately hot month, with an average temperature varying between 25.7°C (78.3°F) and 19.5°C (67.1°F).Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from 29.8°C (85.6°F) in August to a still moderately hot 25.7°C (78.3°F). Hashihama witnesses an average low-temperature of 19.5°C (67.1°F) throughout the month of September.Humidity
The average relative humidity in September in Hashihama is 79%.Rainfall
In Hashihama, in September, during 12.7 rainfall days, 77mm (3.03") of precipitation is typically accumulated. Throughout the year, in Hashihama, there are 157.6 rainfall days, and 677mm (26.65") of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In Hashihama, Japan, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 05:41 and sunset at 18:34. On the last day of the month, sunrise is at 06:01 and sunset at 17:54 JST.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hashihama, Japan
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in September: 19.5°C
The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure in September
Hashihama, Japan
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is January (1020.9mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).
Average wind speed in September
Hashihama, Japan
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is January (11.2km/h).
The calmest month (with the lowest average wind speed) is June (6.5km/h).
Average humidity in September
Hashihama, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Hashihama, Japan
- Average rainfall in September: 77mm
The wettest month (with the highest rainfall) is June (108mm).
The driest months (with the least rainfall) are January and November (30mm).
Average rainfall days in September
Hashihama, Japan
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is May (10.3 days).
Average snowfall in September
Hashihama, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (18mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Hashihama, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.2 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
Hashihama, Japan
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Hashihama, Japan
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is May (19.3 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in September
Hashihama, Japan
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Hashihama, Japan
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Hashihama, Japan
- Average visibility in September: 9km
The months with the highest visibility are January, November and December (10km).
The months with the lowest visibility are February, March, April, May, June, July, August, September and October (9km).





