September weather forecastYafuso, Japan
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Yafuso, Japan, with an average temperature fluctuating between 28.7°C (83.7°F) and 27.3°C (81.1°F).Temperature
The arrival of September records an average high-temperature of a still moderately hot 28.7°C (83.7°F), closely related to the 29.4°C (84.9°F) observed in August. A mean low-temperature of 27.3°C (81.1°F) is anticipated during the month of September, a slight step down from the daytime high.Heat index
September's heat index is computed to be a tropical 34°C (93.2°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Observations indicate that the heat index values are for shady locations with light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In September, the average relative humidity is 79%.Rainfall
In September, in Yafuso, the rain falls for 20 days. Throughout September, 141mm (5.55") of precipitation is accumulated. In Yafuso, Japan, during the entire year, the rain falls for 228 days and collects up to 1405mm (55.31") of precipitation.Daylight
In September, the average length of the day is 12h and 19min.On the first day of the month, sunrise is at 06:09 and sunset at 18:49. On the last day of September, in Yafuso, sunrise is at 06:21 and sunset at 18:17 JST.
Sunshine
In Yafuso, the average sunshine in September is 8.3h.UV index
June through September, with an average maximum UV index of 7, are months with the highest UV index in Yafuso. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 7 during September translates into the following directions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Yafuso, Japan
- Average high temperature in September: 28.7°C
The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (19°C).
- Average low temperature in September: 27.3°C
The month with the highest average low temperature is August (28.3°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in September
Yafuso, Japan
- Average pressure in September: 1009mbar
The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).
Average wind speed in September
Yafuso, Japan
- Average wind speed in September: 22.3km/h
The windiest month (with the highest average wind speed) is December (27.9km/h).
The calmest month (with the lowest average wind speed) is May (19.8km/h).
Average humidity in September
Yafuso, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is January (72%).
Average rainfall in September
Yafuso, Japan
- Average rainfall in September: 141mm
The wettest month (with the highest rainfall) is June (207mm).
The driest month (with the least rainfall) is February (58mm).
Average rainfall days in September
Yafuso, Japan
- Average rainfall days in September: 20 days
The months with the highest number of rainy days are January and June (21.5 days).
The month with the least rainy days is April (16.4 days).
Average daylight in September /
Average sunshine in September
Yafuso, Japan
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Yafuso, Japan
- Average sunshine days in September: 6.9 days
The month with the most sunshine days is April (11.3 days).
The month with the least sunshine days is January (6 days).
Average UV index in September
Yafuso, Japan
- Average UV index in September: 7
The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Yafuso, Japan
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in September
Yafuso, 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).
