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September Weather in Red Bay, United States

Last updated: June 24, 2025

In September, the average temperature in Red Bay, United States is a pleasant 24°C (76°F). Temperatures can vary widely, dipping to a minimum of 11°C (52°F) and soaring to a maximum of 37°C (99°F). Expect a total precipitation of 111 mm (4.4 in) over about 8 days, accompanied by an average humidity of 70%. Perfect for planning your visit!

September Temperature in Red Bay

In September in Red Bay, the average temperature is 24°C (76°F). Maximums can reach 37°C (99°F), while minimums can drop as low as 11°C (52°F). This makes it an ideal time for travelers seeking pleasant weather and a mix of warm days and cooler evenings.

September Weather in Red Bay: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Red Bay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Red Bay, September typically has an average temperature of 24°C (76°F), with highs reaching up to 37°C (99°F) and lows dropping to around 11°C (52°F).
JanFebMarAprMayJunJulAugSepOctNovDec444957627278818076665148
Data source: Temperature data for Red Bay 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 Red Bay

In Red Bay in September, the precipitation amount is 111 mm (4.4 in) spread over 8 days.

September Precipitation Trends in Red Bay

The chart displays monthly precipitation patterns in Red Bay, 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 Red Bay, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec12218916116612613111810911111472146
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Red Bay

In Red Bay in September, humidity is 70%. With an average temperature of 24°C (76°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel a bit sticky and heavier, so travelers should stay hydrated and take regular breaks to enjoy the sights comfortably.

September Average Humidity in Red Bay

This chart illustrates the average monthly humidity levels in Red Bay, 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 Red Bay is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%81%83%83%80%74%70%73%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Red Bay

In Red Bay 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 Red Bay.

Maximum UV Index Levels in Red Bay for September

The chart shows the monthly maximum UV Index (UVI) for Red Bay 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 Red Bay typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111109754
Data source: Red Bay 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 Red Bay Compares to Other Months

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

This table compares monthly weather conditions in Red Bay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)122 mm (4.8 inches)86%moderate
February Weather9°C (49°F)189 mm (7.5 inches)85%high
March Weather14°C (57°F)161 mm (6.3 inches)84%very high
April Weather17°C (62°F)166 mm (6.5 inches)81%very high
May Weather22°C (72°F)126 mm (5.0 inches)83%extreme
June Weather25°C (78°F)131 mm (5.2 inches)83%extreme
July Weather27°C (81°F)118 mm (4.7 inches)80%extreme
August Weather27°C (80°F)108 mm (4.3 inches)73%very high
September Weather24°C (76°F)111 mm (4.4 inches)70%very high
October Weather19°C (66°F)113 mm (4.5 inches)73%high
November Weather11°C (52°F)72 mm (2.8 inches)85%moderate
December Weather9°C (48°F)146 mm (5.7 inches)88%moderate

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