The average day light hours per day in Coopers Beach in September are 11.9 and there are 5.5 hours of sunshine per day on average during September making it a sunny month that is overcast at times.
The ultraviolet index in Coopers Beach in September is typically 6.2 during September. An ultraviolet index reading of 6 to 7 indicates a high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 20 minutes. Protection against skin and eye damage is needed. Tanning will be safest before 10am and after 4pm. 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 September is 14.3° which is cold for swimming, a full wet suit is required to spend any length of time in the sea.