September weather forecastRed Bay, AL
September
Weather in September
In September, the Red Bay climate begins its transition to fall, with temperatures receding to a range of 64°F (17.8°C) to 84°F (28.9°C). The city’s greenery begins to showcase autumnal hues. The nine sunshine hours per day assure outdoor activities are still very much on the table, whether for relaxation or recreation. However, the UV index drops to a medium level of five, decreasing the risk of UV radiation exposure. Despite a decline in the volume of rainfall, short rainfall spells continue to punctuate the warmth, recharging the surrounding nature and maintaining the air’s freshness.Temperature
September's advent notes a subtle adjustment in average high-temperature to a warm 84°F (28.9°C) from August. Throughout September, the nighttime temperature in Red Bay averages to an enjoyable 64°F (17.8°C).Heat index
In September, the heat index is estimated at a hot 91.4°F (33°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
In Red Bay, the average relative humidity in September is 73%.Rainfall
In September, the rain falls for 13.1 days. Throughout September, 2.56" (65mm) of precipitation is accumulated. Throughout the year, there are 170.7 rainfall days, and 40.24" (1022mm) of precipitation is accumulated.Snowfall
In Red Bay, snow does not fall in April through October.Daylight
In September, the average length of the day in Red Bay is 12h and 23min.On the first day of September in Red Bay, Alabama, sunrise is at 6:26 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:37 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Red Bay is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 5 during September translates into the following guidance:
Ensure safety - Imperative it is to shield skin and eyes from damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Red Bay, AL
- Average high temperature in September: 84°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (33.6°F).
Average pressure in September
Red Bay, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Red Bay, AL
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in September
Red Bay, AL
- Average humidity in September: 73%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Red Bay, AL
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is February (4.41").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in September
Red Bay, AL
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Red Bay, AL
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Red Bay, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Red Bay, AL
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Red Bay, AL
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (10.2 days).
Average UV index in September
Red Bay, AL
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Red Bay, AL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 50).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in September
Red Bay, AL
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, May and July (5mi).
