September weather forecastRockley, Barbados
September
Weather in September
September is the wettest month in Rockley, with a whopping 159mm (6.26") of rainfall. The sporadic sun and passing showers paint a picture of a typical tropical climate. Yet, these light showers interspersed with sunshine don't deter visitors from exploring the city's stunning beaches and vibrant streets. As the month nears its end, the grip of the monsoon starts to loosen, hinting at the onset of a drier season. As September retreats, the city braces itself for the gradually shrinking rainfall figures in October.Temperature
The commencement of September notes an average high-temperature of a still tropical 30°C (86°F), exhibiting little difference from the previous month. Rockley experiences a nighttime temperature average of 23°C (73.4°F) during September.Rainfall
In Rockley, during September, the rain falls for 15 days and regularly aggregates up to 159mm (6.26") of precipitation. In Rockley, during the entire year, the rain falls for 156 days and collects up to 1238mm (48.74") of precipitation.Sea temperature
September is the month with the warmest seawater, with an average sea temperature of 29°C (84.2°F).Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.
Daylight
In September, the average length of the day 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, sunrise is at 05:47 and sunset at 17:48 AST.
Sunshine
The average sunshine in September in Rockley is 8h.UV index
The months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 12 suggests this advice:
Employ all critical precautions. Guarding against sun damage is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Even on a cloudy day, a sunscreen with at least a 30 SPF should be applied generously and frequently reapplied, including after a swim or outdoor exercise. Warning! The Sun's UV rays intensify with reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rockley, Barbados
- Average high temperature in September: 30°C
The warmest months (with the highest average high temperature) are May, June and August (31°C).
The month with the lowest average high temperature is January (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
Rockley, Barbados
- Average rainfall in September: 159mm
The wettest month (with the highest rainfall) is October (178mm).
The driest month (with the least rainfall) is March (37mm).
Average rainfall days in September
Rockley, Barbados
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is April (7 days).
Average sea temperature in September
Rockley, 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
Rockley, 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
Rockley, 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).
