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September Weather in Garrett, United States

Last updated: June 24, 2025

In September, the average temperature in Garrett, United States hovers around 27°C (80°F). Expect a comfortable range with minimums dipping to 11°C (51°F) and soaring to a maximum of 38°C (101°F). However, be prepared for some rain, as the region experiences 94 mm (3.7 in) of precipitation over about 9 days. Overall, the average humidity stands at around 65%, contributing to a lush, tropical feel.

September Temperature in Garrett

In September in Garrett, the average temperature is 27°C (80°F). Maximums can reach 38°C (101°F), while minimums can dip as low as 11°C (51°F). It's an ideal time for travelers to enjoy warm days and cool nights, making outdoor activities and sightseeing a perfect choice.

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

The chart illustrates September temperature patterns in Garrett, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Garrett, September typically has an average temperature of 27°C (80°F), with highs reaching up to 38°C (101°F) and lows dropping to around 11°C (51°F).
JanFebMarAprMayJunJulAugSepOctNovDec485061667582858580695853
Data source: Temperature data for Garrett 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 Garrett

In Garrett in September, the precipitation amount reaches 94 mm (3.7 in) over the course of 9 days.

September Precipitation Trends in Garrett

The chart displays monthly precipitation patterns in Garrett, 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 Garrett, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec6710391128179876793941405370
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Garrett

In Garrett in September humidity is 65%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket wrapped around you, making outdoor exploration a bit sticky but still enjoyable. The air feels thick and slightly heavy, which can lead to quicker fatigue during sightseeing, so it’s wise to stay hydrated and take breaks in the shade.

September Average Humidity in Garrett

This chart illustrates the average monthly humidity levels in Garrett, 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 Garrett is approximately 65%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Garrett

In Garrett in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Garrett.

Maximum UV Index Levels in Garrett for September

The chart shows the monthly maximum UV Index (UVI) for Garrett 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 Garrett typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Garrett 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 Garrett Compares to Other Months

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

This table compares monthly weather conditions in Garrett, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)67 mm (2.6 inches)80%moderate
February Weather10°C (50°F)103 mm (4.0 inches)79%high
March Weather16°C (62°F)91 mm (3.6 inches)78%very high
April Weather19°C (66°F)127 mm (5.0 inches)78%very high
May Weather24°C (75°F)179 mm (7.1 inches)81%extreme
June Weather28°C (82°F)87 mm (3.4 inches)78%extreme
July Weather30°C (86°F)67 mm (2.6 inches)73%extreme
August Weather30°C (86°F)93 mm (3.6 inches)66%extreme
September Weather27°C (80°F)94 mm (3.7 inches)65%very high
October Weather20°C (69°F)140 mm (5.5 inches)72%very high
November Weather14°C (58°F)53 mm (2.1 inches)82%high
December Weather11°C (53°F)70 mm (2.7 inches)87%moderate

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