September weather forecastMullins, Barbados
September
Weather in September
September carries forward the weather trend set by August, including high rainfall, amounting to 174mm (6.85"). The UV index begins its slow descent, although sun protection remains essential. The sea temperature remains constant, promoting marine activities. Temperatures remain identical to previous months, studying the distinctive tropical weather of Mullins. Despite being part of the rainy season, September offers numerous daylight hours with sufficient sunshine.Temperature
Mullins's average high-temperature undergoes a slight change with the dawn of September, equating to the readings of August. During the month of September, the temperature falls to an average of 23°C (73.4°F).Rainfall
In Mullins, Barbados, in September, it is raining for 16 days, with typically 174mm (6.85") of accumulated precipitation. In Mullins, during the entire year, the rain falls for 165 days and collects up to 1310mm (51.57") of precipitation.Sea temperature
With an average sea temperature of 29°C (84.2°F), September is the month with the warmest seawater.Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.
Daylight
In September, the average length of the day in Mullins is 12h and 12min.On the first day of the month, sunrise is at 05:47 and sunset at 18:09. On the last day of September, in Mullins, sunrise is at 05:47 and sunset at 17:48 AST.
Sunshine
In September, the average sunshine is 8h.UV index
February through September, with an average maximum UV index of 12, are months with the highest UV index in Mullins. A UV Index reading of 11, and higher, represents an extreme health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 12 in September translates into this advice:
Put into action all important safeguards, unprotected skin may burn swiftly. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Sunscreen of at least SPF 30 should be applied generously and reapplied often on overcast days, especially post swim or outdoor exercise. Alert! Sand and water increase UV exposure due to their reflective properties.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mullins, Barbados
- Average high temperature in September: 30°C
The warmest month (with the highest average high temperature) is May (31°C).
The months with the lowest average high temperature are January and February (28°C).
- Average low temperature in September: 23°C
The months with the highest average low temperature are May, June, July, August, September, October and November (23°C).
The coldest months (with the lowest average low temperature) are January, February and March (21°C).
Average rainfall in September
Mullins, Barbados
- Average rainfall in September: 174mm
The wettest month (with the highest rainfall) is November (188mm).
The driest month (with the least rainfall) is March (40mm).
Average rainfall days in September
Mullins, Barbados
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is April (8 days).
Average sea temperature in September
Mullins, Barbados
- Average sea temperature in September: 29°C
The best month for swimming (with the highest average sea temperature) is September (29°C).
The coldest months (with the lowest average sea temperature) are February and March (26°C).
Average daylight in September /
Average sunshine in September
Mullins, Barbados
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 8h
The months with the most sunshine are January, February, April and May (Average sunshine: 9h).
The month with the least sunshine is October (Average sunshine: 7h).
Average UV index in September
Mullins, Barbados
- Average UV index in September: 12
The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).





