10-day surf forecast with Strike Scores for Cloudy Bay, Bruny Island, Australia
Cloudy Bay is Bruny Island's premier surf break—a long, powerful beach exposed to the full force of the Southern Ocean. Located on the south coast of South Bruny, the beach catches S-SW groundswells that generate punchy peaks along the 4km stretch of sand. The bay hosts the annual Bruny Island Classic competition, drawing Tasmania's best surfers. Getting here requires a ferry crossing from Kettering followed by a drive through pristine Tasmanian bush. The reward is raw, uncrowded waves in one of Australia's most beautiful coastal settings.
Best day in the forecast: 2026-08-08 with a score of 73/100 (Good)
Poor conditions overall: Average score 46/100. Look for spots with better forecasts.
No alignment: Swell from 129° is outside workable range 165°-215°. Wrong swell direction for this spot.
Marginal size: 1.6m is 0.1m from ideal 1.8m.
Short period: 9s is below minimum 10s. Windswell-dominated (choppy, weak waves).
Onshore/cross-shore: 8 km/h from 224° (SW). Destroying wave quality. Offshore range: 300°-20°.
Groundswell-dominant conditions (clean, long-period waves).
Poor conditions at Cloudy Bay. Either swell direction (129°), size (1.6m), or wind (8 km/h from 224°) is unfavorable. Consider other spots or wait for better conditions.
1.6m (5.2ft) swell from 129° (SE) at 9s period
No alignment: Swell from 114° is outside workable range 165°-215°. Wrong swell direction for this spot.
Marginal size: 1.5m is 0.3m from ideal 1.8m.
Moderate period: 10s meets minimum 10s but below ideal 14s. Some groundswell energy present.
Onshore/cross-shore: 7 km/h from 265° (W). Destroying wave quality. Offshore range: 300°-20°.
Poor conditions at Cloudy Bay. Either swell direction (114°), size (1.5m), or wind (7 km/h from 265°) is unfavorable. Consider other spots or wait for better conditions.
1.5m (4.9ft) swell from 114° (ESE) at 10s period
Moderate alignment: Swell from 228° is 28° off optimal 200°, workable but not ideal.
Marginal size: 1.7m is 0.1m from ideal 1.8m.
Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
Onshore/cross-shore: 9 km/h from 260° (W). Destroying wave quality. Offshore range: 300°-20°.
Good surfable conditions at Cloudy Bay. 1.7m swell from 228° with manageable wind. Solid session guaranteed.
1.7m (5.6ft) swell from 228° (SW) at 15s period
Moderate alignment: Swell from 220° is 20° off optimal 200°, workable but not ideal.
Perfect period: 16s is at or above ideal 14s. Long-period groundswell with maximum power.
Moderate offshore: 13 km/h from 10° (N). Still grooming but noticeable wind.
Good surfable conditions at Cloudy Bay. 1.7m swell from 220° with manageable wind. Solid session guaranteed.
1.7m (5.6ft) swell from 220° (SW) at 16s period
Moderate alignment: Swell from 226° is 26° off optimal 200°, workable but not ideal.
Marginal size: 1.1m is 0.6m from ideal 1.8m.
Perfect period: 14s is at or above ideal 14s. Long-period groundswell with maximum power.
Onshore/cross-shore: 21 km/h from 22° (NNE). Destroying wave quality. Offshore range: 300°-20°.
Surfable but not special at Cloudy Bay. The 1.1m swell from 226° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.1m (3.6ft) swell from 226° (SW) at 14s period
Moderate alignment: Swell from 219° is 19° off optimal 200°, workable but not ideal.
Onshore/cross-shore: 24 km/h from 256° (WSW). Destroying wave quality. Offshore range: 300°-20°.
-10 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
Poor conditions at Cloudy Bay. Either swell direction (219°), size (1.5m), or wind (24 km/h from 256°) is unfavorable. Consider other spots or wait for better conditions.
1.5m (4.9ft) swell from 219° (SW) at 16s period
Local wind-generated waves (choppy, short-period)
Moderate alignment: Swell from 225° is 25° off optimal 200°, workable but not ideal.
Moderate offshore: 14 km/h from 343° (NNW). Still grooming but noticeable wind.
-17 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
Surfable but not special at Cloudy Bay. The 1.6m swell from 225° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
1.6m (5.2ft) swell from 225° (SW) at 15s period
Poor alignment: Swell from 234° is 34° off optimal 200°, barely within workable range 165°-215°.
Marginal size: 2.8m is 1.0m from ideal 1.8m.
Good period: 13s is 93% of ideal 14s. Clean, powerful groundswell.
Strong offshore: 24 km/h from 311° (NW). Grooming but may make paddling difficult.
-11 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
Surfable but not special at Cloudy Bay. The 2.8m swell from 234° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
2.8m (9.2ft) swell from 234° (SW) at 13s period
Very low confidence (8-10 day forecast, conditions may change)
Moderate alignment: Swell from 211° is 11° off optimal 200°, workable but not ideal.
Too big: 6.7m exceeds maximum 3.0m. Risk of closeouts.
Good period: 18s is 129% of ideal 14s. Clean, powerful groundswell.
Onshore/cross-shore: 19 km/h from 295° (WNW). Destroying wave quality. Offshore range: 300°-20°.
Poor conditions at Cloudy Bay. Either swell direction (211°), size (6.7m), or wind (19 km/h from 295°) is unfavorable. Consider other spots or wait for better conditions.
6.7m (22.0ft) swell from 211° (SSW) at 18s period
Poor alignment: Swell from 148° is 52° off optimal 200°, barely within workable range 165°-215°.
Marginal size: 1.0m is 0.8m from ideal 1.8m.
Onshore/cross-shore: 17 km/h from 290° (WNW). Destroying wave quality. Offshore range: 300°-20°.
Poor conditions at Cloudy Bay. Either swell direction (148°), size (1.0m), or wind (17 km/h from 290°) is unfavorable. Consider other spots or wait for better conditions.
1.0m (3.3ft) swell from 148° (SSE) at 15s period
Open-Meteo Weather API (wind/weather data)