Weather in September
Temperature
April through November, with an average high-temperature of 30°C (86°F), are the warmest months.Rainfall
In Grenadines, it is raining for 21 days, with typically 186mm (7.32") of accumulated precipitation. In Grenadines, during the entire year, the rain falls for 200 days and collects up to 1594mm (62.76") of precipitation.Sea temperature
September and October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.Note: 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.
Daylight
The average length of the day in September in Grenadines, Saint Vincent and the Grenadines, is 12h and 12min.On the first day of September in Grenadines, sunrise is at 05:53 and sunset at 18:16. On the last day of the month, sunrise is at 05:54 and sunset at 17:55 AST.
Sunshine
The months with the least sunshine in Grenadines, Saint Vincent and the Grenadines, are June, July, September through December, with an average of 7h of sunshine.UV index
February through September, with an average maximum UV index of 12, are months with the highest UV index in Grenadines. A UV Index of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 12 translate into the following recommendations:
Take all required precautions, as unprotected skin and eyes can burn in minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
FAQ
What is the warmest month in Grenadines?
What is the temperature in September in Grenadines?
How many days does it rain in September in Grenadines?
What months are the sea warmest in Grenadines?
What is the sea water temperature in September in Grenadines?
What is the average length of the day in September in Grenadines?
When are sunrise and sunset in September in Grenadines?
What is the month with the least sunshine in Grenadines?
How long on average sun shines in September in Grenadines?
What is the month with the highest UV index in Grenadines?
What is the UV index reading in September in Grenadines?
Average temperature in September
Grenadines, Saint Vincent and the Grenadines
- Average high temperature in September: 30°C
The warmest months (with the highest average high temperature) are April, May, June, July, August, September, October and November (30°C).
The months with the lowest average high temperature are January, February, March and December (29°C).
- Average low temperature in September: 23°C
The months with the highest average low temperature are May, June, July, August, September and October (23°C).
The coldest months (with the lowest average low temperature) are January, February, March and December (21°C).
Average rainfall in September
Grenadines, Saint Vincent and the Grenadines
- Average rainfall in September: 186mm
The wettest month (with the highest rainfall) is October (207mm).
The driest month (with the least rainfall) is February (57mm).
Average rainfall days in September
Grenadines, Saint Vincent and the Grenadines
- Average rainfall days in September: 21 days
The months with the highest number of rainy days are July and September (21 days).
The month with the least rainy days is April (10 days).
Average sea temperature in September
Grenadines, Saint Vincent and the Grenadines
- Average sea temperature in September: 29°C
The best months for swimming (with the highest average sea temperature) are September and October (29°C).
The coldest months (with the lowest average sea temperature) are January, February, March, April and December (27°C).
Average daylight in September /
Average sunshine in September
Grenadines, Saint Vincent and the Grenadines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 53min).
The month with the shortest days is December (Average daylight: 11h and 23min).
- Average sunshine in September: 7h
The months with the most sunshine are January, February, March, April, May and August (Average sunshine: 8h).
The months with the least sunshine are June, July, September, October, November and December (Average sunshine: 7h).
Average UV index in September
Grenadines, Saint Vincent and the Grenadines
- 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).
Weather forecast for your location
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