September weather forecastKitakyushu, Japan
September
Weather in September
The beginning of autumn in September transforms the weather of Kitakyushu greatly, with a plunge in average temperatures to 26°C (78.8°F) from August's peak of 29.9°C (85.8°F). Although the rainy season is past, the city still receives decent amounts of rain, contributing to a comfortable level of humidity. Even as the daylight hours start to contract, the conditions remain quite friendly for outdoor activities. Majority of the month is sunny, making the climate ideal for traditional autumn celebrations.Temperature
As August transitions into September, Kitakyushu sees a gentle drop in the average high-temperature, transitioning from 29.9°C (85.8°F) to a still warm 26°C (78.8°F). Throughout September, Kitakyushu experiences a low-temperature average of 20.5°C (68.9°F).Humidity
The average relative humidity in September in Kitakyushu is 79%.Rainfall
In Kitakyushu, in September, during 15.3 rainfall days, 75mm (2.95") of precipitation is typically accumulated. In Kitakyushu, during the entire year, the rain falls for 174.9 days and collects up to 943mm (37.13") of precipitation.Snowfall
April through November are months without snowfall.Sea temperature
In Kitakyushu, Japan, the average seawater temperature in September is 25.9°C (78.6°F).Note: For swimming, diving, or other water activities, the temperature range of 25°C (77°F) to 29°C (84.2°F) is perceived as exceptionally enjoyable and comfortable even for prolonged periods.
Daylight
In Kitakyushu, the average length of the day in September is 12h and 23min.On the first day of September in Kitakyushu, sunrise is at 05:50 and sunset at 18:42. On the last day of the month, sunrise is at 06:10 and sunset at 18:02 JST.
Sunshine
In Kitakyushu, Japan, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Kitakyushu is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during September translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Alert! The Sun's UV rays are heightened by the reflection of sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kitakyushu, Japan
- Average high temperature in September: 26°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (8.2°C).
- Average low temperature in September: 20.5°C
The month with the highest average low temperature is August (24.1°C).
The coldest month (with the lowest average low temperature) is January (4.1°C).
Average pressure in September
Kitakyushu, Japan
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is January (1021.9mbar).
The month with the lowest atmospheric pressure is June (1008.3mbar).
Average wind speed in September
Kitakyushu, Japan
- Average wind speed in September: 10.6km/h
The windiest months (with the highest average wind speed) are January and December (14.7km/h).
The calmest month (with the lowest average wind speed) is June (9.1km/h).
Average humidity in September
Kitakyushu, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (84%).
The months with the lowest relative humidity are January, February and March (71%).
Average rainfall in September
Kitakyushu, Japan
- Average rainfall in September: 75mm
The wettest month (with the highest rainfall) is July (183mm).
The driest month (with the least rainfall) is January (44mm).
Average rainfall days in September
Kitakyushu, Japan
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is May (10.3 days).
Average snowfall in September
Kitakyushu, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Kitakyushu, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Kitakyushu, Japan
- Average sea temperature in September: 25.9°C
The best month for swimming (with the highest average sea temperature) is August (27.4°C).
The coldest month (with the lowest average sea temperature) is March (13.8°C).
Average daylight in September /
Average sunshine in September
Kitakyushu, 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: 8h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Kitakyushu, Japan
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is May (19.5 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Kitakyushu, 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 and December (UV index 2).
Average cloud cover in September
Kitakyushu, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Kitakyushu, Japan
- Average visibility in September: 10km
The months with the highest visibility are February, March, September, October, November and December (10km).
The months with the lowest visibility are January, April, May, June, July and August (9km).
