Annual average weather for Grotto Beach, San Salvador Island, Bahamas

Annual Temperature for Grotto Beach

The hottest month in Grotto Beach is August when the average maximum temperature is 33°, average temperature is 28° and average minimum temperature is 23°.

The coolest month in Grotto Beach is January when the average maximum temperature is 28°, average temperature is 23° and average minimum temperature is 18°.

Annual Sunshine for Grotto Beach

The longest days in Grotto Beach are in June, with an average of 13.6 hours of daylight per day. December has the shortest days with an average of 10.7 hours of daylight per day.

The sunniest days in Grotto Beach are in July which has the most hours of sunshine per day with an average of 8.8 hours of sunshine per day, making it a sunny month with few clouds. December has the least sunshine with an average of 5.8 hours of sunshine per day, making it a sunny month that is overcast at times.

The ultraviolet index is the highest in July when it reaches 12.6 and lowest in December when it reaches 5.7.

An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for Grotto Beach

The warmest sea water temperatures in Grotto Beach are found in September when they peak at 28° and lowest in February when they dip to 24°.

The sea is best for swimming between June and December when the temperature is above 27° which is very warm and ideal for relaxing and swimming for the whole day.

Annual Humidity for Grotto Beach

The most humid month in Grotto Beach is August with a dew point (an indicator of humidity) of 24° which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.

The least humid month in Grotto Beach is March with a dew point of 19° which is somewhat uncomfortable for most people in cities but fine on a beach.

Annual Wind Speed for Grotto Beach

The most windy month in Grotto Beach is March when the average maximum windspeed is 27kmh and the average wind speed is 12kmh.

The least windy month in Grotto Beach is October when the average maximum windspeed is 21kmh and the average wind speed is 8kmh.

Monthly Averages

Book Accomodation Deals