
Surf Forecasts:
Avana surf forecast from 18 Sep 2026:
- Best quality surf: Monday 21 Sep, 2AM (local time) - 4ft (1.2m), 17s period, SSW swell with offshore winds.
- Most powerful swell: Tuesday 22 Sep, 8PM (local time) - 8ft (2.5m), 15s period, SW swell with 3,212 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 2AM (local time) - 4ft (1.2m), 17s period with SSW 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 Monday (Sep 21) at 2AM. The primary swell is predicted to be 1.2m and 17s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Avana in the next 16 days are 2.5m 15s and forecast to arrive on Tuesday (Sep 22) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 12s period and expected on Monday (Sep 21) at 8AM.
| Wave Type | Time (-10) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 21st Sep) | 4ft (1.2m) 17s |
| Best Surf | 2AM (Mon 21st Sep) | 4ft (1.2m) 17s |
| Most Powerful | 8PM (Tue 22nd Sep) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Avana over the next 16 days.
Short Range ForecastMostly dry. Warm (max 22°C on Sun afternoon, min 20°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Tue morning. Warm (max 22°C on Mon afternoon, min 20°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | |||||||||||||||
AM | 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) | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | SW 16 | SW 16 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SW 16 | SW 16 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 17 | SSW 16 |
Wave Graph | |||||||||||||||||||||
902 | 711 | 536 | 332 | 290 | 192 | 271 | 261 | 753 | 740 | 568 | 523 | 1664 | 3118 | 2907 | 2060 | 1524 | 952 | 527 | 498 | 674 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | off | cross-on | off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 3:13PM0.34m | 3:27AM0.47m | 4:15PM0.37m | 4:21AM0.51m | 5:00PM0.42m | 5:06AM0.55m | 5:38PM0.48m | 5:44AM0.60m | 6:12PM0.54m | 6:21AM0.64m | 6:45PM0.60m | 6:58AM0.68m | 7:20PM0.65m | ||||||||
Low Tide | 9:03AM0.20m | 9:04PM0.26m | 9:58AM0.17m | 10:00PM0.23m | 10:43AM0.13m | 10:44PM0.19m | 11:20AM0.09m | 11:23PM0.14m | 11:53AM0.05m | 11:58PM0.09m | 12:25PM0.02m | 00:33AM0.05m | 12:56PM-0.01m | 1:08AM0.01m | |||||||
6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | |
— | 6:32 | — | — | 6:34 | — | — | 6:34 | — | — | 6:34 | — | — | 6:34 | — | — | 6:35 | — | — | 6:35 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 22 |
Feels °C | 17 | 18 | 18 | 19 | 20 | 20 | 20 | 21 | 22 | 21 | 24 | 23 | 21 | 21 | 20 | 20 | 20 | 20 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | SW 16 | SSE 10 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SW 16 | SW 16 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 11 | SSW 10 | SSW 16 |
902 | 711 | 536 | 332 | 290 | 192 | 271 | 129 | 753 | 740 | 568 | 523 | 1664 | 3118 | 2907 | 2060 | 1524 | 952 | 527 | 333 | 674 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SSW 14 | SW 14 | SSW 14 | SSE 9 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 11 | SE 11 | SE 11 | SE 13 | SE 12 | SE 12 | SE 13 | SSW 18 | SSW 17 | SSW 10 |
167 | 167 | 183 | 232 | 208 | 123 | 79 | 236 | 331 | 341 | 336 | 234 | 110 | 96 | 246 | 207 | 210 | 224 | 399 | 498 | 204 | |
Swell 3 Height (m) Direction Period (s) | SSE 13 | SE 13 | SSE 12 | SE 12 | SSE 11 | SSE 11 | SSE 10 | SW 16 | SE 10 | SE 10 | SE 11 | SE 10 | SW 20 | NE 8 | NE 10 | NE 10 | NE 10 | SSW 19 | SE 13 | SE 12 | SE 12 |
17 | 26 | 14 | 35 | 12 | 49 | 69 | 261 | 142 | 100 | 119 | 87 | 194 | 10 | 16 | 28 | 26 | 145 | 193 | 187 | 214 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NE 3 | NE 4 | — | NE 4 | — | — | — | — | — | — | — | — | NNE 4 | NE 4 | — |
— | — | — | — | — | — | 2 | 10 | — | 10 | — | — | — | — | — | — | — | — | 8 | 7 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 12 | 1385 | 7 | 7 | 7 | 7 | 9 | 7 | 0 | 7 | 0 | 0 | 999 | 12 | 2 | 2 | 12 | 9 | 9 | 9 | 7 |
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.









