September weather forecast
Grenadines, Saint Vincent and the Grenadines

In September, Grenadines, Saint Vincent and the Grenadines, starts experiencing a slight decrease in various weather parameters. While still in the rainy season, total rainfall in September decreases to 186mm (7.32") when compared to August. The daylight hours too experience a modest reduction, but it has little effect on outdoor activities. Despite the diminishing rainfall and daylight hours, local events, and outdoor excursions continue to thrive. The blend of warm sunshine, tropical showers, and rejuvenating beach conditions continues to attract residents and tourists alike.

Temperature

Grenadines experiences peak temperatures, averaging a high-temperature of 30°C (86°F) during April through November.

Rainfall

In Grenadines, Saint Vincent and the Grenadines, during September, the rain falls for 21 days and regularly aggregates up to 186mm (7.32") of precipitation. Throughout the year, there are 200 rainfall days, and 1594mm (62.76") of precipitation is accumulated.

Sea temperature

The months with the warmest seawater are September and October, with an average sea temperature of 29°C (84.2°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.

Daylight

In September, the average length of the day is 12h and 12min.
On the first day of the month, sunrise is at 05:53 and sunset at 18:15. On the last day of September, in Grenadines, sunrise is at 05:54 and sunset at 17:55 AST.

Sunshine

June, July, September through December, with an average of 7h of sunshine, are months with the least sunshine.

UV index

February through September, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme threat to health from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 12 during September translates into the following directions:
Implement all key precautions. Warding off sun damage is critical. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Broad-spectrum sunscreen with an SPF of 30 or above should be applied generously and reapplied every two hours and right after any outdoor activity or swim. Be on guard! The reflective nature of sand and water boosts UV exposure.