September weather forecastSayo, Japan
September weather for Sayo, Japan: The first month of the autumn, September, is also a moderately hot month in Sayo, Japan, with an average temperature varying between 25.6°C (78.1°F) and 20°C (68°F). In September, in Sayo, Japan, the rain falls for 14.3 days.
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Sayo, Japan, with an average temperature varying between 25.6°C (78.1°F) and 20°C (68°F).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a warm 29.2°C (84.6°F) to a still moderately hot 25.6°C (78.1°F). Throughout September, a steady low-temperature average of 20°C (68°F) is noted.Humidity
In Sayo, the average relative humidity in September is 79%.Rainfall
In September, in Sayo, Japan, the rain falls for 14.3 days. Throughout September, 59mm (2.32") of precipitation is accumulated. In Sayo, during the entire year, the rain falls for 138.1 days and collects up to 420mm (16.54") of precipitation.Snowfall
March through November are months without snowfall in Sayo.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 05:35 and sunset at 18:29. On the last day of the month, sunrise is at 05:56 and sunset at 17:48 JST.
Sunshine
The average sunshine in September in Sayo is 9.2h.UV index
In September, the average daily maximum UV index in Sayo is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 5 in September transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sayo, Japan
- Average high temperature in September: 25.6°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 20°C
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure in September
Sayo, Japan
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is February (1020.3mbar).
The month with the lowest atmospheric pressure is June (1008.6mbar).
Average wind speed in September
Sayo, Japan
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is January (15.3km/h).
The calmest month (with the lowest average wind speed) is June (8.7km/h).
Average humidity in September
Sayo, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are March and April (73%).
Average rainfall in September
Sayo, Japan
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is November (11mm).
Average rainfall days in September
Sayo, Japan
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in September
Sayo, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Sayo, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.8 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
Sayo, 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 54min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Sayo, Japan
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is March (20.1 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in September
Sayo, Japan
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Sayo, Japan
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Sayo, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).
