September weather forecastKotobukicho, Japan
September
Weather in September
September, the first month of the autumn in Kotobukicho, is still a warm month, with an average temperature fluctuating between 26.7°C (80.1°F) and 20.7°C (69.3°F).Temperature
As August makes way for September, Kotobukicho's average high-temperature eases from a tropical 30.7°C (87.3°F) to a moderately hot 26.7°C (80.1°F). Throughout the month of September, Kotobukicho witnesses an average low-temperature of 20.7°C (69.3°F).Humidity
The average relative humidity in September in Kotobukicho is 74%.Rainfall
In Kotobukicho, in September, it is raining for 12.1 days, with typically 53mm (2.09") of accumulated precipitation. In Kotobukicho, during the entire year, the rain falls for 133 days and collects up to 442mm (17.4") of precipitation.Snowfall
In Kotobukicho, snow does not fall in March through November.Daylight
In Kotobukicho, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 05:38 and sunset at 18:31. On the last day of the month, sunrise is at 05:58 and sunset at 17:50 JST.
Sunshine
In September, the average sunshine in Kotobukicho is 9.3h.UV index
In Kotobukicho, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kotobukicho, Japan
- Average high temperature in September: 26.7°C
The warmest month (with the highest average high temperature) is August (30.7°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in September: 20.7°C
The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in September
Kotobukicho, Japan
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is January (1020.5mbar).
The month with the lowest atmospheric pressure is June (1008.5mbar).
Average wind speed in September
Kotobukicho, Japan
- Average wind speed in September: 9.5km/h
The windiest months (with the highest average wind speed) are January and December (14.6km/h).
The calmest month (with the lowest average wind speed) is June (8.5km/h).
Average humidity in September
Kotobukicho, Japan
- Average humidity in September: 74%
The month with the highest relative humidity is July (79%).
The months with the lowest relative humidity are March, April and May (68%).
Average rainfall in September
Kotobukicho, Japan
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is July (75mm).
The driest month (with the least rainfall) is November (13mm).
Average rainfall days in September
Kotobukicho, Japan
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in September
Kotobukicho, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Kotobukicho, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Kotobukicho, 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 18min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Kotobukicho, Japan
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is May (20.2 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Kotobukicho, Japan
- Average UV index in September: 6
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
Kotobukicho, Japan
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Kotobukicho, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).





