Surf Forecasts:
Avana surf forecast from 19 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 2AM (local time) - 6.5ft (2.0m), 10s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 8AM (local time) - 8ft (2.5m), 16s period, SSW swell with 2,924 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 2AM (local time) - 6.5ft (2.0m), 10s period with SW swell.
Best Forecast Surf Conditions for Avana this week:
The surf forecast for Avana over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 2AM. The primary swell is predicted to be 2.0m and 10s period with a secondary swell of 1.2m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Avana in the next 16 days are 2.5m 16s and forecast to arrive on Friday (Aug 21) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 11s period and expected on Thursday (Aug 20) at 8AM.
| Wave Type | Time (-10) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 19th Aug) | 6.5ft (2.0m) 10s |
| Best Surf | 2AM (Wed 19th Aug) | 6.5ft (2.0m) 10s |
| Most Powerful | 8AM (Fri 21st Aug) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Avana over the next 16 days.
Short Range ForecastMostly dry. Warm (max 21°C on Wed night, min 19°C on Thu night). Winds increasing (light winds from the SSW on Tue night, fresh winds from the SE by Fri morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Sat night, min 19°C on Fri night). Mainly strong winds. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 17 | SW 10 | SW 15 | SW 14 | SW 13 | SSW 12 | SSW 13 | SSW 12 | SSW 15 | SSW 14 | S 14 | SSW 16 | SSW 16 | SSW 16 | S 14 | SSW 14 | S 13 | SSW 13 | ESE 8 | E 8 |
Wave Graph | ||||||||||||||||||||
780 | 804 | 2684 | 2491 | 1912 | 1426 | 1775 | 1496 | 2563 | 2309 | 2499 | 940 | 2339 | 2696 | 2680 | 1998 | 1421 | 699 | 495 | 706 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 2:01AM0.43m | 2:35PM0.30m | 3:08AM0.42m | 3:49PM0.30m | 4:10AM0.44m | 4:51PM0.32m | 5:02AM0.48m | 5:37PM0.36m | 5:44AM0.52m | 6:15PM0.41m | 6:21AM0.57m | 6:49PM0.45m | ||||||||
Low Tide | 7:30PM0.16m | 8:32AM0.16m | 8:37PM0.19m | 9:40AM0.15m | 9:39PM0.19m | 10:36AM0.12m | 10:32PM0.16m | 11:21AM0.08m | 11:17PM0.13m | 11:59AM0.04m | 11:55PM0.10m | 12:33PM0.01m | 00:30AM0.06m | |||||||
— | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | |
6:24 | — | — | 6:25 | — | — | 6:25 | — | — | 6:25 | — | — | 6:27 | — | — | 6:27 | — | — | 6:27 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 20 | 20 | 20 | 20 | 21 | 20 | 20 | 20 | 19 | 20 | 19 | 20 | 20 | 21 | 20 | 20 | 20 | 20 | 21 | 21 |
Feels °C | 17 | 19 | 19 | 18 | 17 | 17 | 15 | 15 | 15 | 15 | 13 | 15 | 14 | 16 | 17 | 16 | 13 | 13 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SW 10 | SW 15 | SW 14 | SW 13 | SSW 12 | SSW 13 | SSW 12 | SSW 15 | SSW 14 | S 14 | SSW 13 | SSW 16 | SSW 16 | S 14 | SSW 14 | S 13 | SSW 13 | SSW 12 | SSW 12 |
402 | 804 | 2684 | 2491 | 1912 | 1426 | 1775 | 1496 | 2563 | 2309 | 2499 | 852 | 2339 | 2696 | 2680 | 1998 | 1421 | 699 | 459 | 237 | |
Swell 2 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSE 13 | SSE 13 | SSE 12 | WSW 11 | SE 13 | SSW 16 | E 8 | ENE 9 | SSW 18 | SSW 16 | NNE 9 | E 9 | NNE 9 | SSE 17 | — | SSE 12 | SSE 12 | SSE 11 |
780 | 674 | 149 | 109 | 59 | 69 | 43 | 512 | 22 | 26 | 418 | 940 | 8 | 13 | 8 | 58 | — | 203 | 156 | 135 | |
Swell 3 Height (m) Direction Period (s) | SSE 14 | SSE 14 | ENE 7 | ENE 7 | WSW 12 | SSE 13 | E 8 | ENE 8 | NNE 10 | SSW 20 | ENE 9 | NNE 9 | SW 14 | NNE 9 | W 13 | E 9 | S 21 | NE 9 | SW 19 | SSW 18 |
246 | 232 | 15 | 15 | 57 | 66 | 12 | 21 | 19 | 75 | 26 | 8 | 8 | 8 | 3 | 15 | 9 | 3 | 15 | 31 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | ESE 6 | ESE 6 | E 6 | E 6 | ESE 7 | ESE 6 | ESE 7 | ESE 8 | E 8 |
— | — | — | — | — | — | — | — | — | — | — | 119 | 135 | 91 | 67 | 145 | 237 | 321 | 495 | 706 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 994 | 0 | 0 | 2 | 2 | 994 | 1006 | 12 | 1150 | 2435 | 1150 | 2435 | 2435 | 2446 | 2785 | 2446 | 2446 | 2435 | 2435 | 2347 |
Best forecast wave conditions in Cook-Islands - Rarotonga | ||||||||||||||||||||
Best forecast wave conditions in Cook Islands | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Avana Surf forecast
The above surf forecast table for Avana provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Avana can be found by selecting the local surf guide option on the grey menu. Our Avana surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Avana) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Avana may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Avalon-South is 13 km (8 miles) from Dee Why. If you plan a holiday in Sydney North Coast, look for hotels and other accommodation in Dee Why. Dee Why has rooms for a wide range of budgets as well as car hire and transport links.










