Surf Forecasts:
Avalon-South surf forecast from 27 Sep 2026:
- Best quality surf: Tuesday 29 Sep, 1AM (local time) - 3.5ft (1.1m), 10s period, SSE swell with glassy winds.
- Most powerful swell: Sunday 27 Sep, 4PM (local time) - 7.5ft (2.3m), 8s period, SSE swell with 654 kJ wave energy.
- Next surfable swell (1★+): Tuesday 29 Sep, 1AM (local time) - 3.5ft (1.1m), 10s period with SSE swell.
Best Forecast Surf Conditions for Avalon-South this week:
The surf forecast for Avalon-South over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 29) at 1AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.5m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Avalon-South in the next 16 days are 2.3m 8s and forecast to arrive on Sunday (Sep 27) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 10s period and expected on Saturday (Oct 03) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 29th Sep) | 3.5ft (1.1m) 10s |
| Best Surf | 1AM (Tue 29th Sep) | 3.5ft (1.1m) 10s |
| Most Powerful | 4PM (Sun 27th Sep) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
Short Range ForecastLight rain (total 4mm), mostly falling on Sun morning. Very mild (max 17°C on Tue morning, min 12°C on Mon night). Winds decreasing (fresh winds from the SSE on Sun morning, calm by Mon night). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Fri night. Warm (max 28°C on Fri morning, min 13°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | |||||||||||||||
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) | NE 8 | SSE 8 | SSE 8 | E 6 | SSE 8 | SSE 10 | ENE 9 | ENE 9 | NE 5 | NE 5 | NE 5 | NE 7 | NE 7 | NE 6 | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | S 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 82 | 654 | 488 | 36 | 211 | 235 | 44 | 88 | 46 | 29 | 107 | 279 | 106 | 133 | 485 | 292 | 119 | 91 | 45 | 14 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross-off | glassy | cross-off | cross-off | cross | cross-off |
High Tide | 8:27PM1.42m | 8:51AM1.54m | 9:10PM1.35m | 9:30AM1.58m | 9:55PM1.26m | 10:13AM1.58m | 10:46PM1.16m | 11:02AM1.54m | 11:46PM1.05m | 12:00PM1.49m | 1:00AM0.98m | 1:09PM1.45m | 2:26AM0.96m | ||||||||
Low Tide | 2:24PM0.16m | 2:34AM0.12m | 3:08PM0.13m | 3:09AM0.16m | 3:56PM0.14m | 3:47AM0.22m | 4:48PM0.17m | 4:30AM0.30m | 5:49PM0.22m | 5:20AM0.39m | 6:59PM0.26m | 6:24AM0.47m | 8:18PM0.28m | ||||||||
 | |  |  | |  |  | |  | | | | | | |  | |  | | |  | |
 | 5:37 | — | — | 5:37 | — | — | 5:35 | — | — | 5:33 | — | — | 5:33 | — | — | 5:31 | — | — | 5:30 | — | — |
 | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — |
mm | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 10 | — | — | 5 |
Temp °C | 16 | 14 | 15 | 15 | 16 | 15 | 17 | 17 | 16 | 21 | 19 | 18 | 25 | 23 | 22 | 28 | 24 | 16 | 15 | 15 | 14 |
Feels °C | 13 | 11 | 11 | 11 | 13 | 13 | 13 | 12 | 13 | 16 | 14 | 15 | 22 | 19 | 19 | 24 | 23 | 16 | 11 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | NE 8 | ENE 7 | NE 8 | S 8 | SSE 8 | SSE 10 | S 10 | S 9 | S 11 | S 15 | S 14 | NE 7 | NE 7 | S 11 | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | NE 7 | — |
| kJ | 82 | 35 | 31 | 200 | 211 | 235 | 279 | 211 | 184 | 446 | 257 | 198 | 106 | 35 | 318 | 181 | 119 | 91 | 45 | 14 | — |
Swell 2 Height (m) Direction Period (s) | S 15 | S 16 | S 16 | E 6 | NE 9 | NE 9 | ENE 9 | SSE 20 | S 16 | NE 9 | S 14 | S 13 | S 11 | S 15 | S 10 | S 10 | S 9 | S 14 | — | — | — |
| kJ | 4 | 5 | 43 | 36 | 37 | 38 | 44 | 76 | 343 | 19 | 4 | 116 | 58 | 18 | 17 | 7 | 6 | 4 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | S 19 | — | S 11 | NE 9 | E 6 | S 16 | S 20 | NE 9 | — | — | — | S 16 | — | — | S 15 | S 14 | S 14 | — | — | — |
| kJ | — | 7 | — | 84 | 39 | 10 | 45 | 68 | 20 | — | — | — | 21 | — | — | 4 | 4 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 8 | SSE 8 | SSE 8 | — | — | — | — | ENE 9 | NE 5 | NE 5 | NE 5 | NE 7 | — | NE 6 | NE 7 | NE 8 | WSW 3 | S 5 | S 8 | S 9 | S 10 |
| kJ | 283 | 654 | 488 | — | — | — | — | 88 | 46 | 29 | 107 | 279 | — | 133 | 485 | 292 | 3 | 71 | 228 | 2182 | 2792 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 90 | 96 | 7 | 10 | 0 | 10 | 10 | 2 | 10 | 10 | 1 | 1 | 332 | 1 | 0 | 0 | 7 | 7 | 78 | 195 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Avalon-South surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Avalon-South Surf forecast
The above surf forecast table for Avalon-South provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Avalon-South can be found by selecting the local surf guide option on the grey menu. Our Avalon-South 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 (Avalon-South) 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 Avalon-South 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.
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