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September Weather in Catheys Valley, United States

Last updated: June 24, 2025

In September, the average temperature in Catheys Valley, United States is a pleasant 23°C (74°F). However, temperatures can fluctuate significantly, with a minimum of 7°C (45°F) and a maximum soaring to 41°C (106°F). Expect minimal precipitation, with just 2 mm (0.1 in) over the course of 0 days, and enjoy a comfortable average humidity of 55%.

September Temperature in Catheys Valley

In September in Catheys Valley, the average temperature is 23°C (74°F). Maximum temperatures can reach up to 41°C (106°F), while the minimum can drop as low as 7°C (45°F). It's essential to pack accordingly for your trip, as you may experience both heat and cooler evenings.

September Weather in Catheys Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Catheys Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Catheys Valley, September typically has an average temperature of 23°C (74°F), with highs reaching up to 41°C (106°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec474851586475828174635446
Data source: Temperature data for Catheys Valley 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 Catheys Valley

In Catheys Valley in September, the precipitation amount is 2 mm (0.1 in) during a span of 0 days.

September Precipitation Trends in Catheys Valley

The chart displays monthly precipitation patterns in Catheys Valley, 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 Catheys Valley, September typically receives around 2 mm (0.1 inches) of precipitation spread over approximately 0 days.
JanFebMarAprMayJunJulAugSepOctNovDec169157181674120123164123
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Catheys Valley

In Catheys Valley in September humidity is 55%. With an average temperature of 23°C (74°F), this humidity feels like a warm embrace, creating a comfortable atmosphere for exploring the sights and indulging in outdoor activities.

September Average Humidity in Catheys Valley

This chart illustrates the average monthly humidity levels in Catheys Valley, 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 Catheys Valley is approximately 55%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Catheys Valley

In Catheys Valley 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 Catheys Valley.

Maximum UV Index Levels in Catheys Valley for September

The chart shows the monthly maximum UV Index (UVI) for Catheys Valley 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 Catheys Valley typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4589111211119753
Data source: Catheys Valley 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 Catheys Valley Compares to Other Months

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

This table compares monthly weather conditions in Catheys Valley, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)168 mm (6.6 inches)82%moderate
February Weather9°C (48°F)157 mm (6.2 inches)84%moderate
March Weather11°C (51°F)181 mm (7.1 inches)82%very high
April Weather14°C (58°F)67 mm (2.6 inches)78%very high
May Weather18°C (64°F)41 mm (1.6 inches)71%extreme
June Weather24°C (75°F)2 mm (0.1 inches)64%extreme
July Weather28°C (82°F)0 mm (0.0 inches)58%extreme
August Weather27°C (81°F)1 mm (0.0 inches)54%extreme
September Weather23°C (74°F)2 mm (0.1 inches)55%very high
October Weather17°C (63°F)31 mm (1.2 inches)62%high
November Weather12°C (54°F)64 mm (2.5 inches)78%moderate
December Weather8°C (47°F)123 mm (4.9 inches)80%moderate

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