September weather forecastHiyoshi, Japan
September
Weather in September
September, the first month of the autumn in Hiyoshi, is also a moderately hot month, with an average temperature fluctuating between 26.8°C (80.2°F) and 21.5°C (70.7°F).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a hot 30.8°C (87.4°F) in August to a warm 26.8°C (80.2°F). During the month of September, the temperature in Hiyoshi generally drops to a low average of 21.5°C (70.7°F).Humidity
In Hiyoshi, Japan, the average relative humidity in September is 74%.Rainfall
The wettest months are September and October, with an average 43mm (1.69") of rainfall.Snowfall
April through December are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 05:13 and sunset at 18:09. On the last day of September, in Hiyoshi, sunrise is at 05:35 and sunset at 17:27 JST.
Sunshine
In September, the average sunshine in Hiyoshi is 8h.UV index
The average daily maximum UV index in September in Hiyoshi is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hiyoshi, Japan
- Average high temperature in September: 26.8°C
The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (8.9°C).
- Average low temperature in September: 21.5°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in September
Hiyoshi, Japan
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).
Average wind speed in September
Hiyoshi, Japan
- Average wind speed in September: 13.5km/h
The windiest month (with the highest average wind speed) is April (16.6km/h).
The calmest month (with the lowest average wind speed) is June (13.2km/h).
Average humidity in September
Hiyoshi, Japan
- Average humidity in September: 74%
The months with the highest relative humidity are June and July (77%).
The month with the lowest relative humidity is January (60%).
Average rainfall in September
Hiyoshi, Japan
- Average rainfall in September: 43mm
The wettest months (with the highest rainfall) are September and October (43mm).
The driest month (with the least rainfall) is February (9mm).
Average rainfall days in September
Hiyoshi, Japan
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Hiyoshi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Hiyoshi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 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
Hiyoshi, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).
Average sunshine days in September
Hiyoshi, Japan
- Average sunshine days in September: 17 days
The month with the most sunshine days is January (24.6 days).
The month with the least sunshine days is June (14.9 days).
Average UV index in September
Hiyoshi, 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, February, March, November and December (UV index 3).
Average cloud cover in September
Hiyoshi, Japan
- Average cloud cover in September: 40
The month with the most cloud cover is October (Cloud cover 45).
The month with the least cloud cover is January (Cloud cover 30).
Average visibility in September
Hiyoshi, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
