The hottest month in Grace Bay Beach is July when the average maximum temperature is 32°, average temperature is 29° and average minimum temperature is 27°.
The coolest month in Grace Bay Beach is January when the average maximum temperature is 27°, average temperature is 24° and average minimum temperature is 23°.
The longest days in Grace Bay Beach are in June, with an average of 13.5 hours of daylight per day. December has the shortest days with an average of 10.8 hours of daylight per day.
The sunniest days in Grace Bay Beach are in June which has the most hours of sunshine per day with an average of 8.2 hours of sunshine per day, making it a sunny month with few clouds. December has the least sunshine with an average of 6.2 hours of sunshine per day, making it a quite sunny month with some cloud cover.
The ultraviolet index is the highest in May when it reaches 12.9 and lowest in December when it reaches 6.3.
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.
The warmest sea water temperatures in Grace Bay Beach are found in September when they peak at 28° and lowest in March when they dip to 25°.
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.
The most humid month in Grace Bay Beach is July with a dew point (an indicator of humidity) of 25° which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.
The least humid month in Grace Bay Beach is March with a dew point of 20° which is somewhat uncomfortable for most people in cities but fine on a beach.
The most windy month in Grace Bay Beach is July when the average maximum windspeed is 28kmh and the average wind speed is 20kmh.
The least windy month in Grace Bay Beach is October when the average maximum windspeed is 23kmh and the average wind speed is 16kmh.