September weather forecastBimini, The Bahamas

Weather in September

September in Bimini sees a decline in temperature and daylight hours, indicating the onset of autumn. Despite the declining temperatures, Bimini receives 198mm (7.8") rainfall with 13 rainy days, establishing the month as part of the rainy season. As the sea temperature starts to cool down, the local marine life adjusts, providing a new spectacle for diving enthusiasts. The gradually shortening days still boast 9 hours of radiant sun, supporting an array of outdoor activities. September's weather carries the lingering summer warmth, slowly transitioning into autumn.

Temperature

September begins with an average high-temperature of a still hot 31°C (87.8°F), reflecting close similarity to the preceding month. In Bimini, an average temperature of 24°C (75.2°F) is noted during September nights.

Rainfall

In Bimini, in September, it is raining for 13 days, with typically 198mm (7.8") of accumulated precipitation. In Bimini, during the entire year, the rain falls for 111 days and collects up to 1433mm (56.42") of precipitation.

Sea temperature

In Bimini, the average seawater temperature in September is 29°C (84.2°F).
Note: A water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.

Daylight

In September, the average length of the day is 12h and 17min.
On the first day of September, sunrise is at 06:57 and sunset at 19:36. On the last day of the month, sunrise is at 07:09 and sunset at 19:04 EDT.

Sunshine

The average sunshine in September is 9h.

UV index

In Bimini, the average daily maximum UV index in September is 10. A UV Index of 8 to 10 symbolizes a very high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the average maximum UV index of 10 translates into the following recommendations:
Swift harm can befall unprotected skin and eyes. Prioritize safety. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. A sunscreen boasting a minimum SPF of 30 should be generously applied and reapplied even on cloudy days, post swim or outdoor exercise. Caution! The Sun's UV intensity grows with reflections off sand and water.