September weather forecastGemswick, Barbados
September
Weather in September
September, the first month of the autumn in Gemswick, is also a moderately hot month, with temperature in the range of an average high of 29°C (84.2°F) and an average low of 27.7°C (81.9°F).Temperature
September is Gemswick's warmest month, registering average high temperatures of 29°C (84.2°F) and lows of 27.7°C (81.9°F).Heat index
September's average heat index is estimated at a tropical 34°C (93.2°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
In Gemswick, the average relative humidity in September is 75%.Rainfall
In September, the rain falls for 22.5 days. Throughout September, 106mm (4.17") of precipitation is accumulated. Throughout the year, there are 234.1 rainfall days, and 710mm (27.95") of precipitation is accumulated.Daylight
In September, the average length of the day in Gemswick is 12h and 12min.On the first day of the month, sunrise is at 05:46 and sunset at 18:08. On the last day of September, sunrise is at 05:47 and sunset at 17:48 AST.
Sunshine
In Gemswick, the average sunshine in September is 9.3h.UV index
The months with the highest UV index in Gemswick, Barbados, are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Gemswick are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gemswick, Barbados
- Average high temperature in September: 29°C
The warmest month (with the highest average high temperature) is September (29°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).
Average pressure in September
Gemswick, Barbados
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is June (1014.8mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in September
Gemswick, Barbados
- Average wind speed in September: 19.2km/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 (19.2km/h).
Average humidity in September
Gemswick, 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%).
Average rainfall in September
Gemswick, Barbados
- Average rainfall in September: 106mm
The wettest month (with the highest rainfall) is August (126mm).
The driest month (with the least rainfall) is February (13mm).
Average rainfall days in September
Gemswick, Barbados
- Average rainfall days in September: 22.5 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).
Average daylight in September /
Average sunshine in September
Gemswick, 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: 9h and 18min
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 24min).
Average sunshine days in September
Gemswick, Barbados
- Average sunshine days in September: 5.4 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).
Average UV index in September
Gemswick, 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).
Average cloud cover in September
Gemswick, Barbados
- Average cloud cover in September: 40
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).
Average visibility in September
Gemswick, 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).





