September weather forecastThe Bluff, The Bahamas
September
Weather in September
September marks a gradual easing out from the high summer temperatures and rainfall in The Bluff. Despite this easing out, it remains one of the year's wettest months, with average rainfall reaching 84mm (3.31"). The mix of mild temperatures, relatively higher humidity, and shorter sunshine periods infuse a unique essence to The Bahamas in September. Sea breezes continue to serve as a natural coolant, ensuring comfortable weather conditions prevail. As September progresses, there’s an unmistakable sign of the year starting to wind down.Temperature
September's average high-temperature stands at a still warm 28.7°C (83.7°F), showing little deviation from August's 29°C (84.2°F). The month of September in The Bluff is marked by an average minimum temperature of 27.9°C (82.2°F), slightly cooler than its daytime counterpart.Heat index
The heat index value for September is calculated to be a tropical 33°C (91.4°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
In September, the average relative humidity in The Bluff, The Bahamas, is 75%.Rainfall
In The Bluff, in September, during 21 rainfall days, 84mm (3.31") of precipitation is typically accumulated. In The Bluff, The Bahamas, during the entire year, the rain falls for 197 days and collects up to 664mm (26.14") of precipitation.Daylight
In The Bluff, the average length of the day in September is 12h and 17min.On the first day of September, sunrise is at 06:52 and sunset at 19:28. On the last day of the month, sunrise is at 07:02 and sunset at 18:58 EDT.
Sunshine
The average sunshine in September is 10h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 7 translates into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
The Bluff, The Bahamas
- Average high temperature in September: 28.7°C
The warmest month (with the highest average high temperature) is August (29°C).
The months with the lowest average high temperature are January and March (23.3°C).
- Average low temperature in September: 27.9°C
The month with the highest average low temperature is August (28.3°C).
The coldest months (with the lowest average low temperature) are January and March (21.6°C).
Average pressure in September
The Bluff, The Bahamas
- Average pressure in September: 1014.2mbar
The month with the highest atmospheric pressure is January (1019.1mbar).
The month with the lowest atmospheric pressure is October (1013.7mbar).
Average wind speed in September
The Bluff, The Bahamas
- Average wind speed in September: 18.8km/h
The windiest month (with the highest average wind speed) is November (24.1km/h).
The calmest month (with the lowest average wind speed) is June (18.2km/h).
Average humidity in September
The Bluff, The Bahamas
- Average humidity in September: 75%
The month with the highest relative humidity is June (78%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in September
The Bluff, The Bahamas
- Average rainfall in September: 84mm
The wettest month (with the highest rainfall) is August (88mm).
The driest month (with the least rainfall) is January (25mm).
Average rainfall days in September
The Bluff, The Bahamas
- Average rainfall days in September: 21 days
The month with the highest number of rainy days is September (21 days).
The month with the least rainy days is February (12 days).
Average daylight in September /
Average sunshine in September
The Bluff, The Bahamas
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in September: 10h and 0min
The months with the most sunshine are April, July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in September
The Bluff, The Bahamas
- Average sunshine days in September: 7 days
The month with the most sunshine days is March (13.7 days).
The month with the least sunshine days is October (6.9 days).
Average UV index in September
The Bluff, The Bahamas
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 6).
Average cloud cover in September
The Bluff, The Bahamas
- Average cloud cover in September: 35
The months with the most cloud cover are October and November (Cloud cover 40).
The month with the least cloud cover is April (Cloud cover 32).
Average visibility in September
The Bluff, The Bahamas
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
