Surf Forecasts:
Avalon-South surf forecast from 1 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 7AM (local time) - 5ft (1.6m), 7s period, NE swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 1AM (local time) - 6ft (1.8m), 7s period, NE swell with 284 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 7AM (local time) - 1ft (0.3m), 12s 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 Thursday (Sep 03) at 7AM. The primary swell is predicted to be 0.3m and 12s period with a secondary swell of 0.3m and 10s. Another secondary swell of 0.6m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Avalon-South in the next 16 days are 1.8m 7s and forecast to arrive on Tuesday (Sep 08) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 12s period and expected on Sunday (Sep 06) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 3rd Sep) | 1ft (0.3m) 12s |
| Best Surf | 7AM (Tue 8th Sep) | 5ft (1.6m) 7s |
| Most Powerful | 1AM (Tue 8th Sep) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
The Lowdown
Right, have a look at this stretch. Avalon-South is gonna be as quiet as a church mouse for days. You got a big ol’ gap with nothing worth talkin’ about. A few little hiccups of swell, but nothing that’ll get your heart poundin’.
On Tuesday the 8th of September, things perk up just a touch. Combined wave energy hits 110 (moderate energy) – we got about 4ft of swell from the NE, period of 7 seconds. The wind is glassy – dead flat – so the water will be clean as glass. Water temp’s about normal for the season, so no surprises. At 4ft and glassy, it’s small, good for a longboard at this beginner spot, but it’s still pretty ordinary surf.
Wednesday the 9th of September morning sees combined energy at 129 (moderate energy) with 3ft from the NE, period of 8 seconds. Winds are glassy again, so the surface is clean. A fairly consistent break means you’ll get a few, but again, nothin’ special.
Down the line, Monday the 14th of September has glassy conditions morning and afternoon, but swell is a puny 2ft and 1ft, with periods of 8 and 10 seconds. Combined energy barely hits 56 (weak energy). Crowds can be likely when it’s small, but there’s hardly a wave to fight over.
The only real standouts are the Tuesday and Wednesday mornings – glassy, clean, tiny waves. If you’re a beginner, you’ll love the lack of power. Swell from the NE is a decent match for the spot’s best ENE direction, so it’s got a little shape. But overall, this is a bust. For stronger wind days, kite surfers might have more fun. For paddle surfing, it’s a long stretch of nothin’.
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Wed morning, min 13°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Sat morning, min 13°C on Sun night). Winds decreasing (fresh winds from the WNW on Sat afternoon, calm by Sun night). | ||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SSE 10 | ENE 10 | ENE 10 | NE 4 | NNE 4 | NE 5 | NE 6 | NE 6 | NE 6 | NE 7 | NE 4 | NE 5 | NE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 34 | 33 | 33 | 33 | 32 | 19 | 33 | 19 | 21 | 7 | 22 | 17 | 17 | 9 | 5 | 8 | 16 | 92 | 284 |
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-off | cross-off | cross-off | cross-on | cross-off | cross-off | off | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross |
High Tide | 10:53PM1.25m | 11:27AM1.44m | 11:46PM1.13m | 12:21PM1.42m | 00:52AM1.02m | 1:25PM1.41m | 2:15AM0.95m | 2:40PM1.43m | 3:45AM0.95m | 3:54PM1.48m | 4:59AM1.01m | 5:00PM1.55m | |||||||
Low Tide | 4:58AM0.24m | 5:53PM0.32m | 5:43AM0.32m | 7:02PM0.36m | 6:38AM0.40m | 8:23PM0.36m | 7:48AM0.45m | 9:47PM0.31m | 9:08AM0.46m | 10:57PM0.23m | 10:24AM0.42m | 11:54PM0.14m | |||||||
 |  |  | | | |  | | | | | | | | | | | | | |
 | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — |
 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 26 | 26 | 21 | 25 | 25 | 17 | 20 | 18 | 17 | 28 | 26 | 22 | 17 | 16 | 15 | 19 | 18 | 17 |
Feels °C | 17 | 22 | 23 | 18 | 21 | 22 | 13 | 18 | 14 | 15 | 24 | 20 | 18 | 14 | 12 | 14 | 17 | 15 | 18 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | NNE 5 | S 10 | SSE 10 | S 10 | S 9 | S 7 | S 10 | NE 5 | NE 6 | S 12 | S 10 | S 9 | S 10 | S 9 | NE 7 |
| kJ | 133 | 106 | 76 | 50 | 19 | 52 | 33 | 210 | 76 | 28 | 68 | 17 | 17 | 294 | 268 | 230 | 338 | 205 | 204 |
Swell 2 Height (m) Direction Period (s) | NE 6 | NNE 6 | NNE 6 | ENE 10 | S 10 | NE 6 | NE 7 | NE 7 | ENE 10 | S 11 | ENE 9 | S 9 | S 9 | NE 6 | S 12 | NE 7 | E 10 | E 10 | S 9 |
| kJ | 24 | 21 | 12 | 33 | 74 | 11 | 16 | 12 | 18 | 40 | 17 | 61 | 27 | 8 | 199 | 8 | 8 | 8 | 73 |
Swell 3 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | NE 6 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SSE 11 | NE 4 | — | E 9 | E 11 | E 11 | NE 6 | E 10 | NE 8 | — | — |
| kJ | 34 | 33 | 33 | 5 | 32 | 19 | 19 | 19 | 13 | 7 | — | 7 | 9 | 9 | 5 | 8 | 3 | — | — |
Wind waves Height (m) Direction Period (s) | NW 2 | WNW 2 | — | NW 3 | WNW 2 | SW 3 | SW 5 | SW 5 | ENE 7 | — | NNE 4 | W 3 | SW 2 | SSW 6 | SE 2 | — | NE 4 | NE 5 | NE 7 |
| kJ | 1 | 1 | — | 2 | 1 | 2 | 42 | 27 | 21 | — | 22 | 8 | 1 | 55 | 1 | — | 16 | 92 | 284 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 2 | 0 | 2 | 5 | 2 | 3 | 1 | 65 | 2 | 12 | 4 | 2 | 3 | 597 | 2 | 10 | 10 | 0 |
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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