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September Weather in Turtle Lake, United States

Last updated: June 24, 2025

In September, the average temperature in Turtle Lake, United States is a comfortable 17°C (62°F), with fluctuations ranging from a chilly 1°C (35°F) to a warm 32°C (90°F). Expect 100 mm (3.9 in) of precipitation spread over approximately 11 days, contributing to an average humidity level of 80%. Perfect for those who enjoy a mild and slightly damp climate!

September Temperature in Turtle Lake

In September in Turtle Lake, the average temperature is 17°C (62°F), with maximums reaching 32°C (90°F) and minimums dropping to as low as 1°C (35°F). It’s advisable to pack layers to comfortably adapt to the varying temperatures throughout the day while exploring this destination.

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

The chart illustrates September temperature patterns in Turtle Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Turtle Lake, September typically has an average temperature of 17°C (62°F), with highs reaching up to 32°C (90°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec151631425769726962473222
Data source: Temperature data for Turtle 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 Turtle Lake

In Turtle Lake in September, the precipitation amount is 100 mm (3.9 in) over the course of 11 days.

September Precipitation Trends in Turtle Lake

The chart displays monthly precipitation patterns in Turtle 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 Turtle Lake, September typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec263753931261031011241001004259
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Turtle Lake

In Turtle Lake in September, humidity is 80%. With an average temperature of 17°C (62°F), this humidity feels like a heavy blanket wrapping around you, making travel sticky and uncomfortable, and often leaving you longing for a refreshing breeze.

September Average Humidity in Turtle Lake

This chart illustrates the average monthly humidity levels in Turtle 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 Turtle Lake is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%86%85%79%80%80%78%80%84%89%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Turtle Lake

In Turtle 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 Turtle Lake.

Maximum UV Index Levels in Turtle Lake for September

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

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

This table compares monthly weather conditions in Turtle Lake, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (15°F)26 mm (1.0 inches)88%low
February Weather-9°C (16°F)37 mm (1.5 inches)89%moderate
March Weather0°C (32°F)53 mm (2.1 inches)86%moderate
April Weather5°C (42°F)93 mm (3.6 inches)85%high
May Weather14°C (58°F)126 mm (4.9 inches)79%very high
June Weather20°C (69°F)103 mm (4.1 inches)80%very high
July Weather22°C (73°F)101 mm (4.0 inches)80%very high
August Weather20°C (69°F)124 mm (4.9 inches)78%very high
September Weather17°C (62°F)100 mm (3.9 inches)80%high
October Weather8°C (47°F)100 mm (3.9 inches)84%moderate
November Weather0°C (32°F)42 mm (1.6 inches)89%moderate
December Weather-6°C (22°F)59 mm (2.3 inches)85%low

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