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September Weather in McMinnville, United States

Last updated: June 24, 2025

In McMinnville, United States, the average temperature in September hovers around 23°C (73°F), offering a pleasant climate for outdoor activities. However, be prepared for a range, as the minimum can dip to 8°C (47°F), while the mercury can soar up to 36°C (96°F). Expect 107 mm (4.2 in) of precipitation spread over approximately 9 days, contributing to an average humidity level of 64%. Enjoy the balance of warmth and occasional rain in this vibrant locale!

September Temperature in McMinnville

In September in McMinnville, the average temperature is 23°C (73°F). Maximum temperatures can reach 36°C (96°F), while the minimum can drop as low as 8°C (47°F). This variability makes it essential for travelers to pack for both warm and cool conditions.

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

The chart illustrates September temperature patterns in McMinnville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In McMinnville, September typically has an average temperature of 23°C (73°F), with highs reaching up to 36°C (96°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec414653596975797773634946
Data source: Temperature data for McMinnville 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 McMinnville

In McMinnville in September, the precipitation amount is 107 mm (4.2 in), occurring over a span of 9 days.

September Precipitation Trends in McMinnville

The chart displays monthly precipitation patterns in McMinnville, 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 McMinnville, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec10517616414211711110810210711773140
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in McMinnville

In McMinnville in September, humidity is 64%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel quite comfortable yet slightly sticky, urging travelers to enjoy leisurely activities early in the day or seek shade during peak hours.

September Average Humidity in McMinnville

This chart illustrates the average monthly humidity levels in McMinnville, 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 McMinnville is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in McMinnville

In McMinnville in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in McMinnville.

Maximum UV Index Levels in McMinnville for September

The chart shows the monthly maximum UV Index (UVI) for McMinnville 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 McMinnville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: McMinnville 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 McMinnville Compares to Other Months

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

This table compares monthly weather conditions in McMinnville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)105 mm (4.1 inches)87%moderate
February Weather8°C (47°F)176 mm (6.9 inches)87%high
March Weather12°C (53°F)164 mm (6.5 inches)85%very high
April Weather15°C (59°F)142 mm (5.6 inches)82%very high
May Weather21°C (70°F)117 mm (4.6 inches)83%extreme
June Weather24°C (76°F)111 mm (4.4 inches)82%extreme
July Weather26°C (79°F)108 mm (4.3 inches)78%extreme
August Weather25°C (78°F)102 mm (4.0 inches)67%very high
September Weather23°C (73°F)107 mm (4.2 inches)64%very high
October Weather17°C (64°F)117 mm (4.6 inches)74%high
November Weather9°C (49°F)73 mm (2.9 inches)87%moderate
December Weather8°C (46°F)140 mm (5.5 inches)88%moderate

Compare McMinnville's Climate with Cities Worldwide