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September Weather in Tenino, United States

Last updated: June 24, 2025

In September, the average temperature in Tenino, United States is a pleasant 16°C (61°F). However, temperatures can range from a cool 4°C (40°F) to a warm 33°C (91°F). Expect some rain, as the area receives about 93 mm (3.7 in) of precipitation over 10 days. With an average humidity of 74%, the weather can feel quite humid, making it an interesting month for visitors!

September Temperature in Tenino

In September in Tenino, the average temperature is 16°C (61°F). Maximum temperatures can reach 33°C (91°F) while minimum temperatures can drop as low as 4°C (40°F). Be sure to pack layers to stay comfortable throughout the day!

September Weather in Tenino: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Tenino, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tenino, September typically has an average temperature of 16°C (61°F), with highs reaching up to 33°C (91°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec414045495661656661504540
Data source: Temperature data for Tenino 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 Tenino

In Tenino in September, the precipitation amount is 93 mm (3.7 in) over the course of 10 days.

September Precipitation Trends in Tenino

The chart displays monthly precipitation patterns in Tenino, 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 Tenino, September typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1851881401257157131793146186202
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tenino

In Tenino in September humidity is 74%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making traveling quite uncomfortable as the air feels thick and muggy, potentially leading to fatigue and a longing for a cool breeze.

September Average Humidity in Tenino

This chart illustrates the average monthly humidity levels in Tenino, 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 Tenino is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%85%83%84%84%82%73%74%83%86%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tenino

In Tenino 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 Tenino.

Maximum UV Index Levels in Tenino for September

The chart shows the monthly maximum UV Index (UVI) for Tenino 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 Tenino typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235699987532
Data source: Tenino 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 Tenino Compares to Other Months

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

This table compares monthly weather conditions in Tenino, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)185 mm (7.3 inches)86%low
February Weather4°C (40°F)188 mm (7.4 inches)84%moderate
March Weather7°C (45°F)140 mm (5.5 inches)85%moderate
April Weather10°C (50°F)125 mm (4.9 inches)83%high
May Weather13°C (56°F)71 mm (2.8 inches)84%very high
June Weather16°C (61°F)57 mm (2.3 inches)84%very high
July Weather18°C (65°F)13 mm (0.5 inches)82%very high
August Weather19°C (66°F)17 mm (0.7 inches)73%very high
September Weather16°C (61°F)93 mm (3.7 inches)74%high
October Weather10°C (51°F)146 mm (5.7 inches)83%moderate
November Weather7°C (45°F)186 mm (7.3 inches)86%moderate
December Weather5°C (41°F)202 mm (8.0 inches)87%low

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