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
Keles records a mild change in average high-temperature during September, easing from 28.1°C (82.6°F) in August to a still warm 24.1°C (75.4°F). From significant daily highs, Keles's nights in September cool down to an average low-temperature of 12.1°C (53.8°F).Humidity
The months with the lowest humidity are July through September, with an average relative humidity of 66%.Rainfall
In Keles, in September, it is raining for 10.4 days, with typically 27mm (1.06") of accumulated precipitation. Throughout the year, there are 138.3 rainfall days, and 455mm (17.91") of precipitation is accumulated.Snowfall
May through November are months without snowfall in Keles, Turkey.Daylight
In Keles, the average length of the day in September is 12h and 27min.On the first day of September in Keles, Turkey, sunrise is at 06:31 and sunset at 19:34. On the last day of the month, sunrise is at 06:58 and sunset at 18:47 +03.
Sunshine
The average sunshine in September is 9h.UV index
In Keles, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What are the temperatures in Keles in September?
What are the least humid months in Keles?
What is the average humidity in September in Keles?
How many days does it rain in September in Keles?
When it does not snow in Keles?
How many hours of daylight does Keles have in September?
When are sunrise and sunset in September in Keles?
How long on average sun shines in September in Keles?
How high is the UV index in September in Keles?
Average temperature in September
Keles, Turkey
- Average high temperature in September: 24.1°C
The warmest month (with the highest average high temperature) is August (28.1°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure in September
Keles, Turkey
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is December (1019.9mbar).
The month with the lowest atmospheric pressure is July (1011.3mbar).
Average wind speed in September
Keles, Turkey
- Average wind speed in September: 7.9km/h
The windiest month (with the highest average wind speed) is February (10.4km/h).
The calmest month (with the lowest average wind speed) is October (7.7km/h).
Average humidity in September
Keles, Turkey
- Average humidity in September: 66%
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July, August and September (66%).
Average rainfall in September
Keles, Turkey
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is June (60mm).
The driest month (with the least rainfall) is November (17mm).
Average rainfall days in September
Keles, Turkey
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is August (7.3 days).
Average snowfall in September
Keles, Turkey
- Average snowfall in September: 0mm
The month with the highest snowfall is January (102mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Keles, Turkey
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Keles, Turkey
- Average daylight in September: 12h and 3min
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 24min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Keles, Turkey
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in September
Keles, Turkey
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Keles, Turkey
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Keles, Turkey
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is January (8km).
Keles, Turkey
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