September weather forecastItayanagi, Japan
September
Weather in September
September, the first month of the autumn in Itayanagi, is still a pleasant month, with an average temperature fluctuating between 22.4°C (72.3°F) and 14.4°C (57.9°F).Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a warm 26.4°C (79.5°F) in August to a pleasant 22.4°C (72.3°F). The nights of September in Itayanagi anticipate an average low-temperature of 14.4°C (57.9°F).Humidity
The average relative humidity in September is 82%.Rainfall
In Itayanagi, in September, during 17.1 rainfall days, 94mm (3.7") of precipitation is typically accumulated. In Itayanagi, during the entire year, the rain falls for 175.2 days and collects up to 961mm (37.83") of precipitation.Snowfall
In Itayanagi, snow does not fall in May through October.Daylight
In Itayanagi, Japan, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 05:05 and sunset at 18:10. On the last day of September, sunrise is at 05:33 and sunset at 17:22 JST.
Sunshine
In September, the average sunshine in Itayanagi is 7.8h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. When the Sun is at its strongest around midday, find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Itayanagi, Japan
- Average high temperature in September: 22.4°C
The warmest month (with the highest average high temperature) is August (26.4°C).
The month with the lowest average high temperature is January (-0.9°C).
- Average low temperature in September: 14.4°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is February (-6.2°C).
Average pressure in September
Itayanagi, Japan
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is November (1017.6mbar).
The month with the lowest atmospheric pressure is July (1008.8mbar).
Average wind speed in September
Itayanagi, Japan
- Average wind speed in September: 9km/h
The windiest month (with the highest average wind speed) is December (15.4km/h).
The calmest month (with the lowest average wind speed) is July (8.6km/h).
Average humidity in September
Itayanagi, Japan
- Average humidity in September: 82%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Itayanagi, Japan
- Average rainfall in September: 94mm
The wettest month (with the highest rainfall) is July (119mm).
The driest month (with the least rainfall) is May (49mm).
Average rainfall days in September
Itayanagi, Japan
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in September
Itayanagi, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is December (486mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Itayanagi, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (26.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Itayanagi, Japan
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is August (Average sunshine: 8h and 54min).
The month with the least sunshine is January (Average sunshine: 1h and 24min).
Average sunshine days in September
Itayanagi, Japan
- Average sunshine days in September: 10.1 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is January (2.2 days).
Average UV index in September
Itayanagi, Japan
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Itayanagi, Japan
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in September
Itayanagi, Japan
- Average visibility in September: 8km
The months with the highest visibility are April, May, October and November (9km).
The months with the lowest visibility are January, February and July (7km).
