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September Weather in Cairnbrook, United States

Last updated: June 24, 2025

In September, the average temperature in Cairnbrook, United States is a pleasant 18°C (65°F), with extremes ranging from a chilly 1°C (34°F) to a warm 31°C (88°F). Expect 131 mm (5.2 in) of precipitation spread over about 11 days, contributing to an average humidity level of 68%. Enjoy the blend of mild weather and refreshing rain!

September Temperature in Cairnbrook

In September in Cairnbrook, the average temperature is 18°C (65°F). Maximums can reach 31°C (88°F), while minimums can drop as low as 1°C (34°F). Be prepared for a wide range of temperatures for your travels!

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

The chart illustrates September temperature patterns in Cairnbrook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cairnbrook, September typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (88°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec293339496068737165554034
Data source: Temperature data for Cairnbrook 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 Cairnbrook

In Cairnbrook in September, the precipitation amount is 131 mm (5.2 in) distributed over 11 days.

September Precipitation Trends in Cairnbrook

The chart displays monthly precipitation patterns in Cairnbrook, 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 Cairnbrook, September typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec721139811613913611011113111271100
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cairnbrook

In Cairnbrook in September, humidity is 68%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel somewhat sticky and requiring occasional breaks for refreshing hydration.

September Average Humidity in Cairnbrook

This chart illustrates the average monthly humidity levels in Cairnbrook, 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 Cairnbrook 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 Cairnbrook

In Cairnbrook 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 Cairnbrook.

Maximum UV Index Levels in Cairnbrook for September

The chart shows the monthly maximum UV Index (UVI) for Cairnbrook 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 Cairnbrook typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108743
Data source: Cairnbrook 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 Cairnbrook Compares to Other Months

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

This table compares monthly weather conditions in Cairnbrook, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)72 mm (2.8 inches)86%moderate
February Weather1°C (33°F)113 mm (4.5 inches)86%moderate
March Weather4°C (39°F)98 mm (3.9 inches)86%high
April Weather10°C (49°F)116 mm (4.6 inches)84%very high
May Weather15°C (60°F)139 mm (5.5 inches)78%very high
June Weather20°C (68°F)136 mm (5.4 inches)79%very high
July Weather23°C (73°F)110 mm (4.3 inches)70%very high
August Weather22°C (71°F)111 mm (4.4 inches)59%very high
September Weather18°C (65°F)131 mm (5.2 inches)68%very high
October Weather13°C (55°F)112 mm (4.4 inches)80%high
November Weather4°C (40°F)71 mm (2.8 inches)86%moderate
December Weather1°C (34°F)100 mm (3.9 inches)85%moderate

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