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September Weather in Cecil, United States

Last updated: June 24, 2025

In September, the average temperature in Cecil, United States hovers around 17°C (62°F). Expect a minimum chill of 0°C (33°F) and a balmy maximum of 33°C (91°F). Be prepared for the occasional rain, with 73 mm (2.9 in) of precipitation spread over 11 days. The air feels quite humid too, with an average humidity of 78%.

September Temperature in Cecil

In September in Cecil, the average temperature is 17°C (62°F). Maximums can reach 33°C (91°F), while minimums can be as low as 0°C (33°F). With this range of temperatures, travelers should be prepared for both warm days and chilly nights.

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

The chart illustrates September temperature patterns in Cecil, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cecil, September typically has an average temperature of 17°C (62°F), with highs reaching up to 33°C (91°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec191932425768726962493425
Data source: Temperature data for Cecil 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 Cecil

In Cecil in September, the precipitation amount is 73 mm (2.9 in), spread over 11 days.

September Precipitation Trends in Cecil

The chart displays monthly precipitation patterns in Cecil, 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 Cecil, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec37496010110510411010973965156
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cecil

In Cecil in September, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.

September Average Humidity in Cecil

This chart illustrates the average monthly humidity levels in Cecil, 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 Cecil is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%90%87%84%77%75%75%73%78%84%89%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cecil

In Cecil in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Cecil.

Maximum UV Index Levels in Cecil for September

The chart shows the monthly maximum UV Index (UVI) for Cecil 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 Cecil typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Cecil 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 Cecil Compares to Other Months

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

This table compares monthly weather conditions in Cecil, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)37 mm (1.5 inches)89%low
February Weather-7°C (19°F)49 mm (1.9 inches)90%moderate
March Weather0°C (33°F)60 mm (2.3 inches)87%moderate
April Weather6°C (42°F)101 mm (4.0 inches)84%high
May Weather14°C (57°F)105 mm (4.1 inches)77%very high
June Weather20°C (68°F)104 mm (4.1 inches)75%very high
July Weather22°C (72°F)110 mm (4.3 inches)74%very high
August Weather20°C (69°F)108 mm (4.3 inches)73%very high
September Weather17°C (62°F)73 mm (2.9 inches)78%high
October Weather9°C (49°F)96 mm (3.8 inches)84%moderate
November Weather1°C (34°F)51 mm (2.0 inches)89%moderate
December Weather-4°C (25°F)56 mm (2.2 inches)87%low

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