RQYS has a weather station and live camera feed by Manly. The wind meter is just on top of the windsurfing centre of excellence by the beach off Davenport Dr.
www.rqys.com.au/weather-station/Note the wind speed is usually about 2-3 knots higher than on the water due to slight acceleration coming off the beach. Regardless, it's been more accurate than seabreeze, willyweather or windy.com