Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the commencement of September, Iizuka records a moderate temperature decline, with the average high easing from August's hot 30.2°C (86.4°F) to a moderately hot 26.2°C (79.2°F). Iizuka records a mean low-temperature of 20.4°C (68.7°F) in September.Humidity
In Iizuka, the average relative humidity in September is 79%.Rainfall
In Iizuka, in September, during 15.2 rainfall days, 51mm (2.01") of precipitation is typically accumulated. Throughout the year, there are 165.6 rainfall days, and 600mm (23.62") of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in September in Iizuka is 12h and 23min.On the first day of the month, sunrise is at 05:51 and sunset at 18:43. On the last day of September, sunrise is at 06:10 and sunset at 18:03 JST.
Sunshine
The average sunshine in September in Iizuka is 8.4h.UV index
The average daily maximum UV index in September in Iizuka is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
What is the average September temperature in Iizuka?
What is the average humidity in September in Iizuka?
How many days does it rain in September in Iizuka?
When it does not snow in Iizuka?
How many hours of daylight does Iizuka have in September?
When are sunrise and sunset in September in Iizuka?
How long on average sun shines in September in Iizuka?
What is the UV index intensity in September in Iizuka?
Average temperature in September
Iizuka, Japan
- Average high temperature in September: 26.2°C
The warmest month (with the highest average high temperature) is August (30.2°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in September: 20.4°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 (3.7°C).
Average pressure in September
Iizuka, Japan
- Average pressure in September: 1012.3mbar
The month with the highest atmospheric pressure is January (1021.9mbar).
The month with the lowest atmospheric pressure is June (1008.2mbar).
Average wind speed in September
Iizuka, Japan
- Average wind speed in September: 10.5km/h
The windiest months (with the highest average wind speed) are January and December (13.6km/h).
The calmest month (with the lowest average wind speed) is June (8.9km/h).
Average humidity in September
Iizuka, Japan
- Average humidity in September: 79%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Iizuka, Japan
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is July (119mm).
The driest month (with the least rainfall) is January (27mm).
Average rainfall days in September
Iizuka, Japan
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is May (9.4 days).
Average snowfall in September
Iizuka, Japan
- Average snowfall in September: 0mm
The month with the highest snowfall is January (20mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Iizuka, Japan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5 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
Iizuka, Japan
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Iizuka, Japan
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is May (20 days).
The month with the least sunshine days is July (8.3 days).
Average UV index in September
Iizuka, 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
Iizuka, Japan
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Iizuka, Japan
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, September, October, November and December (10km).
The months with the lowest visibility are April, May, June, July and August (9km).
Iizuka, Japan
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