The average day light hours per day in Coopers Beach in December are 14.5 and there are 7.1 hours of sunshine per day on average during December making it a quite sunny month with some cloud cover.
The ultraviolet index in Coopers Beach in December is typically 12.9 during December. 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 Coopers Beach in December is 16.6° which is cool for swimming, shorty wetsuit may help you extend your time in the water.