May is a hot and very rainy time for sunbathing in Key Biscayne. May is an excellent month for swimming in Key Biscayne with very warm sea temperatures. Consider visiting Key Biscayne in the months of January, March, November, December, for the best beach weather. Also consider one of our other suggestions for May.
The average maximum temperature in Key Biscayne in May is 31°. The average maximum temperature is 29° in the previous month and 32° in the next month.
The average temperature in Key Biscayne in May is 27°. The average temperature ranges is 25° in the previous month and 28° in the next month.
The average minimum temperature in Key Biscayne in May is 23°. The minimum temperature is 21° in the previous month and 25° in the next month.
The average day light hours per day in Key Biscayne in May are 13.4 and there are 8.6 hours of sunshine per day on average during May making it a sunny month with few clouds.
The ultraviolet index in Key Biscayne in May is typically 12.2 during May. 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 average sea water temperature in Key Biscayne in May is 27.7° which is very warm and ideal for relaxing and swimming for the whole day.
The average total rainfall in Key Biscayne in May is 175.1cm and on average there are 12.2 rainy days in May making it a very wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Key Biscayne in May is 21° 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 dew point is 20° in the previous month and 24° in the next month.
The average maximum relative humidity in Key Biscayne in May is typically 83%. The maximum relative humidity is 82.3% in the previous month and 87.3% in the next month.
The average relative humidity in Key Biscayne in May is typically 67.7%. The average relative humidity is 65.9% in the previous month and 72.2% in the next month.
The average maximum wind speed in Key Biscayne in May is typically 29kmh. The average maximum wind speed is 29kmh in the previous month and 30kmh in the next month.
The average wind speed in Key Biscayne in May is typically 14kmh. The average wind speed is 15kmh in the previous month and 12kmh in the next month.
The average wind direction in Key Biscayne in May is from the East-Southeast.
