CatchWindow fishing intelligence

Sydney Harbour, NSW Daily Water Report — August 23, 2026

Today in Sydney Harbour, diving enthusiasts will find the conditions nearly perfect, with a high suitability score of 9.1 out of 10. The calm seas, with wave heights ranging from 0.8 to 1.0 meters, and a gentle ENE breeze peaking at just 7 knots, promise excellent underwater visibility. The water temperature is a cool 17.3°C, slightly below average, but nothing a good wetsuit can't handle. Surfing also scores well today, with an 8.1 out of 10, thanks to consistent wave heights and a long period swell coming from 164 degrees. The best waves are likely around dusk when the sea calms to 0.84 meters. Sailors and boaters can also enjoy a steady day on the water, scoring 7.5 out of 10 for both activities, with manageable winds and no rain forecasted. Fishing is moderately promising with a 6.2 out of 10 score. The solunar tables suggest the best catch windows are mid-morning from 09:16 to 11:16 and again in the evening from 21:16 to 23:16. However, the lack of tide data might throw a curveball for those relying on tidal shifts. Kayakers might find the conditions less appealing with a score of 5.9, as the current is moving at 0.6 m/s toward 252 degrees, potentially making paddling a bit more challenging. Wildlife observers will have a decent chance of spotting activity, scoring 6.4 out of 10, especially during the solunar periods. Looking ahead, the weather remains largely cooperative, though rain is expected on the 25th and 26th, potentially affecting outdoor plans. For a memorable outing, consider diving today; the underwater world is calling with clarity and calm.