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September Weather in Carlisle, United States

Last updated: June 24, 2025

In Carlisle, United States, the average temperature in September hovers around 25°C (77°F). During this month, you might experience a minimum temperature of 9°C (49°F) and a maximum soaring up to 38°C (100°F). Precipitation levels are approximately 77 mm (3.0 in) over about 5 days, with an average humidity of 64%. Prepare for a month where the weather can be as dynamic as the scenery!

September Temperature in Carlisle

In September in Carlisle, the average temperature is 25°C (77°F). The maximum can reach 38°C (100°F) and the minimum can be as low as 9°C (49°F). Overall, this climate makes Carlisle an ideal destination for travelers seeking a warm getaway with pleasant fluctuations in temperature.

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

The chart illustrates September temperature patterns in Carlisle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carlisle, September typically has an average temperature of 25°C (77°F), with highs reaching up to 38°C (100°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec404354607079828076635146
Data source: Temperature data for Carlisle 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 Carlisle

In Carlisle in September, the precipitation amount is 77 mm (3.0 in) over the course of 5 days.

September Precipitation Trends in Carlisle

The chart displays monthly precipitation patterns in Carlisle, 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 Carlisle, September typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec901021261422067895122771516985
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Carlisle

In Carlisle in September, humidity is 64%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, making outdoor excursions feel a bit heavier, yet still inviting for travelers seeking a vibrant atmosphere.

September Average Humidity in Carlisle

This chart illustrates the average monthly humidity levels in Carlisle, 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 Carlisle is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%75%75%83%82%78%68%64%71%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Carlisle

In Carlisle in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Carlisle.

Maximum UV Index Levels in Carlisle for September

The chart shows the monthly maximum UV Index (UVI) for Carlisle 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 Carlisle typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109753
Data source: Carlisle 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 Carlisle Compares to Other Months

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

This table compares monthly weather conditions in Carlisle, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)90 mm (3.5 inches)79%moderate
February Weather6°C (43°F)102 mm (4.0 inches)78%high
March Weather12°C (55°F)126 mm (4.9 inches)75%high
April Weather16°C (60°F)142 mm (5.6 inches)75%very high
May Weather21°C (70°F)206 mm (8.1 inches)83%very high
June Weather26°C (79°F)78 mm (3.1 inches)81%extreme
July Weather28°C (83°F)95 mm (3.7 inches)78%extreme
August Weather27°C (81°F)122 mm (4.8 inches)68%very high
September Weather25°C (77°F)77 mm (3.0 inches)64%very high
October Weather17°C (63°F)151 mm (5.9 inches)71%high
November Weather11°C (51°F)68 mm (2.7 inches)82%moderate
December Weather8°C (46°F)85 mm (3.4 inches)87%moderate

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