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September Weather in Long Lake, United States

Last updated: June 24, 2025

In September, the average temperature in Long Lake, United States is a comfortable 14°C (58°F). Expect a range in temperatures from a chilly -2°C (28°F) to a warm 30°C (86°F). During this month, you'll encounter around 78 mm (3.1 in) of precipitation over 10 days, contributing to an average humidity level of 72%. Be prepared for a mix of weather while enjoying the beauty of this locale!

September Temperature in Long Lake

In September in Long Lake, the average temperature is 14°C (58°F). The maximum can reach 30°C (86°F), and the minimum can be as low as -2°C (28°F). This climate variability suggests that travelers should be prepared for both warm and cold weather.

September Weather in Long Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Long Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Long Lake, September typically has an average temperature of 14°C (58°F), with highs reaching up to 30°C (86°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec182127405462676558473223
Data source: Temperature data for Long Lake 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 Long Lake

In Long Lake in September, the precipitation amount is 78 mm (3.1 in) over the course of 10 days.

September Precipitation Trends in Long Lake

The chart displays monthly precipitation patterns in Long Lake, 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 Long Lake, September typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec95978912511110814412378154121101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Long Lake

In Long Lake in September, humidity is 72%. With an average temperature of 14°C (58°F), this humidity feels like a damp blanket wrapping around you, making walking and exploring slightly uncomfortable and requiring frequent breaks for hydration.

September Average Humidity in Long Lake

This chart illustrates the average monthly humidity levels in Long Lake, 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 Long Lake is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Long Lake

In Long Lake 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 Long Lake.

Maximum UV Index Levels in Long Lake for September

The chart shows the monthly maximum UV Index (UVI) for Long Lake 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 Long Lake typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997532
Data source: Long Lake 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 Long Lake Compares to Other Months

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

This table compares monthly weather conditions in Long Lake, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)95 mm (3.7 inches)89%moderate
February Weather-6°C (21°F)97 mm (3.8 inches)88%moderate
March Weather-3°C (27°F)89 mm (3.5 inches)86%high
April Weather4°C (40°F)125 mm (4.9 inches)84%very high
May Weather12°C (54°F)111 mm (4.4 inches)76%very high
June Weather17°C (62°F)108 mm (4.2 inches)72%very high
July Weather20°C (68°F)144 mm (5.7 inches)66%very high
August Weather18°C (65°F)123 mm (4.8 inches)64%very high
September Weather14°C (58°F)78 mm (3.1 inches)72%high
October Weather8°C (47°F)154 mm (6.1 inches)81%moderate
November Weather0°C (32°F)121 mm (4.8 inches)87%moderate
December Weather-5°C (23°F)101 mm (4.0 inches)84%low

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