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September Weather in Timber Lake, United States

Last updated: June 24, 2025

In September, the average temperature in Timber Lake, United States hovers around 17°C (63°F). However, be prepared for a wide range, as temperatures can dip to a chilly -2°C (29°F) or soar to a scorching 36°C (97°F). During this month, you can expect approximately 47 mm (1.8 in) of precipitation spread over about 6 days, coupled with an average humidity level of 73%.

September Temperature in Timber Lake

In September in Timber Lake, the average temperature is 17°C (63°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop as low as -2°C (29°F). Be prepared for a wide range of temperatures during your travels, so pack accordingly!

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

The chart illustrates September temperature patterns in Timber Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Timber Lake, September typically has an average temperature of 17°C (63°F), with highs reaching up to 36°C (97°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec181532425771767263453325
Data source: Temperature data for Timber 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 Timber Lake

In Timber Lake in September, the total precipitation amount is 47 mm (1.8 in) spread over the course of 6 days.

September Precipitation Trends in Timber Lake

The chart displays monthly precipitation patterns in Timber 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 Timber Lake, September typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec131928457158746947641226
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Timber Lake

In Timber Lake in September humidity is 73%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making it ideal for leisurely strolling through vibrant markets or exploring outdoor attractions, though travelers may want to stay hydrated and take breaks in shaded areas to fully enjoy the atmosphere.

September Average Humidity in Timber Lake

This chart illustrates the average monthly humidity levels in Timber 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 Timber Lake is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%81%72%73%75%82%83%82%73%71%78%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Timber Lake

In Timber Lake 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 Timber Lake.

Maximum UV Index Levels in Timber Lake for September

The chart shows the monthly maximum UV Index (UVI) for Timber 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 Timber Lake typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec25589101098532
Data source: Timber 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 Timber Lake Compares to Other Months

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

This table compares monthly weather conditions in Timber 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)13 mm (0.5 inches)78%low
February Weather-9°C (16°F)19 mm (0.7 inches)81%moderate
March Weather0°C (32°F)28 mm (1.1 inches)71%moderate
April Weather5°C (42°F)45 mm (1.8 inches)73%very high
May Weather14°C (57°F)71 mm (2.8 inches)75%very high
June Weather21°C (71°F)58 mm (2.3 inches)82%very high
July Weather24°C (76°F)74 mm (2.9 inches)83%very high
August Weather22°C (72°F)69 mm (2.7 inches)82%very high
September Weather17°C (63°F)47 mm (1.8 inches)73%very high
October Weather7°C (45°F)64 mm (2.5 inches)71%moderate
November Weather1°C (34°F)12 mm (0.5 inches)78%moderate
December Weather-4°C (25°F)25 mm (1.0 inches)76%low

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