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September Weather in Keles, Turkey

Last updated: August 27, 2025

In Keles, Turkey, the average temperature in September hovers around 18°C (64°F), with a minimum of 3°C (37°F) and a peak of 34°C (93°F). Be prepared for some rain as the area sees approximately 41 mm (1.6 in) of precipitation over 8 days. The air is fairly comfortable with an average humidity of 45%, making it a pleasant time to visit!

September Temperature in Keles

In September in Keles, the average temperature is a comfortable 18°C (64°F). Maximum temperatures can reach as high as 34°C (93°F), while the minimum can drop to 3°C (37°F). Be prepared for a range of temperatures while enjoying your travel experience!

September Weather in Keles: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Keles, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Keles, September typically has an average temperature of 18°C (64°F), with highs reaching up to 34°C (93°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec333841505964697064554639
Data source: Temperature data for Keles generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Keles

In Keles in September, the total precipitation amount is 41 mm (1.6 in) occurring over the course of 8 days.

September Precipitation Trends in Keles

The chart displays monthly precipitation patterns in Keles, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Keles, September typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec10888125981321514824416868115
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Keles

In Keles in September, humidity is 45%. With an average temperature of 18°C (64°F), this humidity feels like a refreshing embrace, making it comfortable for traveling and exploring without the burden of excessive heat.

September Average Humidity in Keles

This chart illustrates the average monthly humidity levels in Keles, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Keles is approximately 45%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%86%75%72%63%47%35%45%69%85%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Keles

In Keles in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Keles.

Maximum UV Index Levels in Keles for September

The chart shows the monthly maximum UV Index (UVI) for Keles in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Keles typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357891010108642
Data source: Keles September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Keles Compares to Other Months

Weather in Keles varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Keles, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Keles, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)108 mm (4.3 inches)88%moderate
February Weather3°C (38°F)88 mm (3.4 inches)88%moderate
March Weather5°C (42°F)125 mm (4.9 inches)86%high
April Weather10°C (50°F)98 mm (3.8 inches)75%very high
May Weather15°C (59°F)132 mm (5.2 inches)72%very high
June Weather18°C (64°F)151 mm (5.9 inches)63%very high
July Weather21°C (69°F)48 mm (1.9 inches)47%very high
August Weather21°C (71°F)24 mm (0.9 inches)35%very high
September Weather18°C (64°F)41 mm (1.6 inches)45%very high
October Weather13°C (55°F)68 mm (2.7 inches)69%high
November Weather8°C (47°F)68 mm (2.7 inches)85%moderate
December Weather4°C (40°F)115 mm (4.5 inches)89%low

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