September weather forecast
Bridgetown, Barbados

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The public promenade beside The Careenage in Bridgetown, Barbados
The public promenade beside The Careenage in Bridgetown, Barbados

Weather in September

September in Bridgetown, Barbados ushers in a decrease in both temperature and rainfall from their August peaks. The sea continues to offer a warm embrace with a constant temperature around 29.4°C (84.9°F), the highest point during the year. Despite a decrease in wind speed, September sustains fair weather and manages to see a descent in cloud cover. Rainfall remains relatively high, curtailing outdoor activities to some extent.

Temperature

September and October mark Bridgetown's peak of temperatures, averaging a high-temperature of 28.9°C (84°F).

Heat index

September's mean heat index is calculated to be a tropical 33°C (91.4°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
Heat index determinations are made taking into account the shade and light air movements. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.

Humidity

In September, the average relative humidity in Bridgetown is 75%.

Rainfall

In September, in Bridgetown, the rain falls for 22.2 days. Throughout September, 103mm (4.06") of precipitation is accumulated. In Bridgetown, during the entire year, the rain falls for 233.8 days and collects up to 706mm (27.8") of precipitation.

Sea temperature

With an average sea temperature of 29.4°C (84.9°F), September is the month with the warmest seawater.
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

The average length of the day in September in Bridgetown, Barbados, 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

In September, the average sunshine in Bridgetown is 9.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Bridgetown, Barbados. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. 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. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.
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Frequently asked questions

What is the warmest month in Bridgetown?

Bridgetown's temperatures tend to hit their maximum during September and October, with an average high-temperature of 28.9°C (84°F).

How hot does it get in Bridgetown in September?

In Bridgetown, in September, the average high-temperature is 28.9°C (84°F), and the average low-temperature is 27.7°C (81.9°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 33°C (91.4°F).

What is the average humidity in September in Bridgetown?

In Bridgetown, Barbados, the average relative humidity in September is 75%.

How many days does it rain in September in Bridgetown?

In Bridgetown, in September, it is raining for 22.2 days, with typically 103mm (4.06") of accumulated precipitation.

What is the month with the warmest sea water in Bridgetown?

The month with the warmest seawater in Bridgetown is September, with an average sea temperature of 29.4°C (84.9°F).

What is the sea water temperature in September in Bridgetown?

In September, the average sea temperature in Bridgetown, Barbados, is 29.4°C (84.9°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September in Bridgetown?

In September, the average day length in Bridgetown is 12h and 12min.

When are sunrise and sunset in September in Bridgetown?

In September, on the first day of the month, sunrise is at 05:47 and sunset at 18:09. On the last day of the month, in Bridgetown, Barbados, sunrise is at 05:47 and sunset at 17:48 AST.

How many hours of sunshine does Bridgetown have in September?

In September, the average sunshine duration in Bridgetown is 9.4h.

What is the month with the highest UV index in Bridgetown?

The months with the highest UV index are January through December, with an average maximum UV index of 7.

What are the months with the lowest UV index in Bridgetown?

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Bridgetown.

What is the UV index intensity in September in Bridgetown?

In Bridgetown, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.

Average temperature in September
Bridgetown, Barbados

Average temperature in September - Bridgetown, Barbados
  • Average high temperature in September: 28.9°C

The warmest months (with the highest average high temperature) are September and October (28.9°C).
The month with the lowest average high temperature is February (26.8°C).

  • Average low temperature in September: 27.7°C

The month with the highest average low temperature is October (27.8°C).
The coldest month (with the lowest average low temperature) is February (25.7°C).

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Average pressure in September
Bridgetown, Barbados

Average pressure in September - Bridgetown, Barbados
  • Average pressure in September: 1012.5mbar

The month with the highest atmospheric pressure is June (1014.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).

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Average wind speed in September
Bridgetown, Barbados

Average wind speed in September - Bridgetown, Barbados
  • Average wind speed in September: 19.4km/h

The windiest months (with the highest average wind speed) are January and February (28.3km/h).
The calmest month (with the lowest average wind speed) is September (19.4km/h).

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Average humidity in September
Bridgetown, Barbados

Average humidity in September - Bridgetown, Barbados
  • Average humidity in September: 75%

The months with the highest relative humidity are June, July, August and November (77%).
The month with the lowest relative humidity is February (74%).

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Average rainfall in September
Bridgetown, Barbados

Average rainfall in September - Bridgetown, Barbados
  • Average rainfall in September: 103mm

The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is February (13mm).

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Average rainfall days in September
Bridgetown, Barbados

Average rainfall days in September - Bridgetown, Barbados
  • Average rainfall days in September: 22.2 days

The month with the highest number of rainy days is July (26.3 days).
The month with the least rainy days is February (11.3 days).

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Average sea temperature in September
Bridgetown, Barbados

Average sea temperature in September - Bridgetown, Barbados
  • Average sea temperature in September: 29.4°C

The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest months (with the lowest average sea temperature) are February and March (27.1°C).

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Average daylight in September /
Average sunshine in September
Bridgetown, Barbados

Average daylight in September / Average sunshine in September - Bridgetown, Barbados
  • Average daylight in September: 12h and 1min

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: 9h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in September
Bridgetown, Barbados

Average sunshine days in September - Bridgetown, Barbados
  • Average sunshine days in September: 5.5 days

The month with the most sunshine days is February (14.3 days).
The month with the least sunshine days is July (1.3 days).

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Average UV index in September
Bridgetown, Barbados

Average UV index in September - Bridgetown, Barbados
  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

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Average cloud cover in September
Bridgetown, Barbados

Average cloud cover in September - Bridgetown, Barbados
  • Average cloud cover in September: 39

The month with the most cloud cover is June (Cloud cover 49).
The months with the least cloud cover are January and February (Cloud cover 37).

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Average visibility in September
Bridgetown, Barbados

Average visibility in September - Bridgetown, Barbados
  • 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).

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Bridgetown, Barbados

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