Surf Forecasts:
Avalon-South surf forecast from 29 Aug 2026:
- Best quality surf: Sunday 30 Aug, 1AM (local time) - 3ft (0.9m), 9s period, SSE swell with glassy winds.
- Most powerful swell: Sunday 30 Aug, 1AM (local time) - 3ft (0.9m), 9s period, SSE swell with 151 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 1AM (local time) - 3ft (0.9m), 9s 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 Sunday (Aug 30) at 1AM. The primary swell is predicted to be 0.9m and 9s period. 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 0.9m 9s and forecast to arrive on Sunday (Aug 30) at 1AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 9s period and expected on Sunday (Aug 30) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 30th Aug) | 3ft (0.9m) 9s |
| Best Surf | 1AM (Sun 30th Aug) | 3ft (0.9m) 9s |
| Most Powerful | 1AM (Sun 30th Aug) | 3ft (0.9m) 9s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
The Lowdown
Alright, let's be straight with you – this is a rough run for Avalon-South. The whole 16-day window is looking pretty flat and uninspiring. We've got a couple of moments where you could get wet, but it's nothing to write home about. The first few days are the only real chance to paddle out, but it's not going to be pretty.
There's a tiny glimmer on Sunday the 30th. The morning goes glassy with a small 2ft SSE swell, but the period is short at 10 seconds, so it'll be weak and gutless. The combined energy is only 123 (weak), so there's no power behind it. The water temp is 64°F, which is about average for this time of year, so no surprises there. Given how poor everything else is, that Sunday morning is the only time I'd even bother checking the cam.
Everything else is a write-off. The swell drops like a stone after that, and we're stuck with tiny, knee-high waves for days on end, often with nasty onshore or cross-shore winds. The short period swell on the 5th of September is a joke at 5 seconds. There's a long gap of nothing happening from the 9th of September right through until the 12th, with zero swell and zero energy. Even when the swell tries to pick up a little in the second week, it's still tiny and messy.
Look, this is a classic dry spell. The break is fairly consistent, so it's not the norm, but we're in a flat patch right now. It's a beginner-friendly spot, so even if there was a little more size, it wouldn't be a drama. But right now, I'd say leave the board in the car and go for a surf check elsewhere. You're not missing a thing.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 12°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Wed afternoon, min 14°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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) | SSE 9 | SE 10 | SE 9 | ENE 8 | ENE 9 | NE 3 | ENE 9 | ENE 11 | ENE 11 | NE 6 | ENE 10 | ENE 10 | ENE 10 | NE 6 | ENE 10 | SSE 10 | ENE 10 | ENE 3 | NNE 5 |
Wave Graph  | |||||||||||||||||||
 kJ | 151 | 94 | 24 | 24 | 17 | 3 | 15 | 23 | 37 | 39 | 33 | 33 | 33 | 9 | 19 | 32 | 19 | 3 | 32 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | glassy | glassy | cross-on | cross-off | cross | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | off | glassy | cross-on | cross-off |
High Tide | 9:24AM1.36m | 9:28PM1.45m | 10:01AM1.41m | 10:08PM1.36m | 10:41AM1.43m | 10:53PM1.25m | 11:27AM1.44m | 11:46PM1.13m | 12:21PM1.42m | 00:52AM1.02m | 1:25PM1.41m | 2:15AM0.95m | |||||||
Low Tide | 3:15AM0.10m | 3:21PM0.25m | 3:46AM0.12m | 4:06PM0.26m | 4:20AM0.17m | 4:56PM0.28m | 4:58AM0.24m | 5:53PM0.32m | 5:43AM0.32m | 7:02PM0.36m | 6:38AM0.40m | 8:23PM0.36m | |||||||
 |  | | | | | | | | | | | |  | | | | | | |
 | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — |
 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 17 | 16 | 15 | 18 | 17 | 16 | 24 | 26 | 20 | 27 | 28 | 21 | 25 | 24 | 17 | 20 | 18 | 16 |
Feels °C | 14 | 15 | 14 | 16 | 15 | 14 | 15 | 20 | 22 | 17 | 23 | 24 | 18 | 22 | 22 | 13 | 17 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | S 9 | S 9 | S 9 | S 8 | S 9 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 7 | S 6 | SSE 10 | S 10 | S 11 | NNE 5 |
| kJ | 151 | 160 | 220 | 198 | 138 | 95 | 134 | 224 | 185 | 138 | 102 | 73 | 49 | 24 | 17 | 32 | 73 | 58 | 32 |
Swell 2 Height (m) Direction Period (s) | S 8 | SE 10 | ENE 8 | S 17 | S 15 | S 11 | S 14 | ENE 11 | ENE 11 | NE 6 | NE 5 | ENE 10 | ENE 10 | S 10 | S 11 | ENE 10 | S 6 | S 6 | S 11 |
| kJ | 105 | 94 | 24 | 148 | 112 | 41 | 99 | 23 | 37 | 39 | 18 | 33 | 33 | 45 | 58 | 19 | 19 | 11 | 87 |
Swell 3 Height (m) Direction Period (s) | ENE 9 | ENE 9 | SE 9 | ENE 8 | ENE 9 | S 16 | ENE 9 | ENE 8 | N 12 | ENE 10 | ENE 10 | NE 6 | NE 6 | NE 6 | ENE 10 | S 8 | ENE 10 | S 19 | S 7 |
| kJ | 32 | 29 | 21 | 24 | 17 | 78 | 15 | 7 | 3 | 34 | 33 | 8 | 5 | 9 | 19 | 5 | 19 | 110 | 17 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 3 | NE 4 | NE 4 | NE 5 | NW 3 | NW 3 | W 2 | NW 3 | WNW 3 | — | SSW 5 | — | ENE 3 | NNW 5 |
| kJ | — | — | — | — | — | 3 | 12 | 4 | 30 | 2 | 2 | 1 | 1 | 2 | — | 27 | — | 3 | 28 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 7 | 0 | 0 | 10 | 2 | 2 | 117 | 2 | 2 | 0 | 0 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 135 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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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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