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September Weather in Three Lakes, United States

Last updated: June 24, 2025

In Three Lakes, United States, the average temperature in September hovers around 15°C (59°F). Temperatures can fluctuate, with a minimum of 5°C (40°F) and a maximum soaring to 31°C (88°F). During this month, expect approximately 131 mm (5.2 in) of precipitation spread over 12 days, and enjoy an average humidity level of 62%.

September Temperature in Three Lakes

In September in Three Lakes, the average temperature is 15°C (59°F). Maximums can reach 31°C (88°F), while minimums can drop as low as 5°C (40°F). Be prepared for a range of temperatures, making layering your clothing essential while exploring the area.

September Weather in Three Lakes: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Three Lakes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Three Lakes, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dropping to around 5°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec403843485559646459494439
Data source: Temperature data for Three Lakes 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 Three Lakes

In Three Lakes in September, the precipitation amount is 131 mm (5.2 in) spread over 12 days.

September Precipitation Trends in Three Lakes

The chart displays monthly precipitation patterns in Three Lakes, 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 Three Lakes, September typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec25527220317299903232131246302296
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Three Lakes

In Three Lakes in September humidity is 62%. With an average temperature of 15°C (59°F), this humidity feels like a refreshing embrace, making it ideal for leisurely strolls and explorations without feeling overly hot or sticky.

September Average Humidity in Three Lakes

This chart illustrates the average monthly humidity levels in Three Lakes, 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 Three Lakes is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%87%84%81%82%79%63%62%83%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Three Lakes

In Three Lakes 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 Three Lakes.

Maximum UV Index Levels in Three Lakes for September

The chart shows the monthly maximum UV Index (UVI) for Three Lakes 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 Three Lakes typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987522
Data source: Three Lakes 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 Three Lakes Compares to Other Months

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

This table compares monthly weather conditions in Three Lakes, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)255 mm (10.0 inches)86%low
February Weather3°C (38°F)272 mm (10.7 inches)86%moderate
March Weather6°C (44°F)203 mm (8.0 inches)87%moderate
April Weather9°C (49°F)172 mm (6.8 inches)84%high
May Weather13°C (55°F)99 mm (3.9 inches)81%very high
June Weather15°C (60°F)89 mm (3.5 inches)82%very high
July Weather18°C (64°F)32 mm (1.3 inches)79%very high
August Weather18°C (64°F)32 mm (1.3 inches)63%very high
September Weather15°C (59°F)131 mm (5.2 inches)62%high
October Weather9°C (49°F)246 mm (9.7 inches)83%moderate
November Weather7°C (44°F)302 mm (11.9 inches)89%low
December Weather4°C (39°F)295 mm (11.6 inches)88%low

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