December is a hot and slightly rainy time for sunbathing in Puerto Rico. December is an excellent month for swimming in Puerto Rico with very warm sea temperatures. Consider visiting Puerto Rico in the months of February, March, June, October, for the best beach weather. Also consider one of our other suggestions for December.
The average maximum temperature in Puerto Rico in December is 29°. The average maximum temperature is 30° in the previous month and 28° in the next month.
The average temperature in Puerto Rico in December is 26°. The average temperature ranges is 27° in the previous month and 25° in the next month.
The average minimum temperature in Puerto Rico in December is 23°. The minimum temperature is 24° in the previous month and 22° in the next month.
The average day light hours per day in Puerto Rico in December are 11 and there are 6.5 hours of sunshine per day on average during December making it a quite sunny month with some cloud cover.
The ultraviolet index in Puerto Rico in December is typically 7.6 during December. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. 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 Puerto Rico in December is 27.2° which is very warm and ideal for relaxing and swimming for the whole day.
The average total rainfall in Puerto Rico in December is 21.5cm and on average there are 14.7 rainy days in December making it a slightly wet time to visit the beach.
The maximum dew point (an indicator of humidity) in Puerto Rico in December is 22° 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 24° in the previous month and 22° in the next month.
The average maximum relative humidity in Puerto Rico in December is typically 89%. The maximum relative humidity is 90.3% in the previous month and 90.3% in the next month.
The average relative humidity in Puerto Rico in December is typically 75.6%. The average relative humidity is 77.5% in the previous month and 76.7% in the next month.
The average maximum wind speed in Puerto Rico in December is typically 22kmh. The average maximum wind speed is 22kmh in the previous month and 23kmh in the next month.
The average wind speed in Puerto Rico in December is typically 11kmh. The average wind speed is 10kmh in the previous month and 12kmh in the next month.
The average wind direction in Puerto Rico in December is from the East-Northeast.
