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September Weather in Twin Lakes, United States

Last updated: June 24, 2025

In September, the average temperature in Twin Lakes, United States is a pleasant 21°C (70°F). Expect variations, with minimum temperatures dipping to 3°C (39°F) and peaks reaching up to 35°C (96°F). During this month, precipitation amounts to 114 mm (4.5 in) over approximately 9 days, while the average humidity lingers around 68%. Enjoy the weather, but don’t forget your umbrella!

September Temperature in Twin Lakes

In September in Twin Lakes, the average temperature is 21°C (70°F). The maximum can reach 35°C (96°F), and the minimum can be as low as 3°C (39°F). This range makes Twin Lakes an ideal destination for travelers looking to experience both warm days and cooler nights.

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

The chart illustrates September temperature patterns in Twin Lakes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Twin Lakes, September typically has an average temperature of 21°C (70°F), with highs reaching up to 35°C (96°F) and lows dropping to around 3°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec364146566572787570604539
Data source: Temperature data for Twin 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 Twin Lakes

In Twin Lakes in September, the precipitation amount is 114 mm (4.5 in) over the course of 9 days.

September Precipitation Trends in Twin Lakes

The chart displays monthly precipitation patterns in Twin 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 Twin Lakes, September typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec649269123121106701351141178191
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Twin Lakes

In Twin Lakes in September humidity is 68%. With an average temperature of 21°C (70°F), this humidity feels like a warm embrace, making the air feel slightly heavy and sticky, which can be quite exhausting for travelers.

September Average Humidity in Twin Lakes

This chart illustrates the average monthly humidity levels in Twin 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 Twin Lakes is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Twin Lakes

In Twin Lakes in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Twin Lakes.

Maximum UV Index Levels in Twin Lakes for September

The chart shows the monthly maximum UV Index (UVI) for Twin 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 Twin Lakes typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111010108753
Data source: Twin 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 Twin Lakes Compares to Other Months

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

This table compares monthly weather conditions in Twin Lakes, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)64 mm (2.5 inches)86%moderate
February Weather5°C (41°F)92 mm (3.6 inches)86%moderate
March Weather8°C (46°F)69 mm (2.7 inches)86%high
April Weather13°C (56°F)123 mm (4.8 inches)84%very high
May Weather18°C (65°F)121 mm (4.8 inches)78%extreme
June Weather22°C (73°F)106 mm (4.2 inches)79%very high
July Weather26°C (78°F)70 mm (2.8 inches)70%very high
August Weather24°C (75°F)134 mm (5.3 inches)59%very high
September Weather21°C (70°F)114 mm (4.5 inches)68%very high
October Weather16°C (60°F)117 mm (4.6 inches)80%high
November Weather7°C (45°F)81 mm (3.2 inches)86%moderate
December Weather4°C (40°F)91 mm (3.6 inches)85%moderate

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