Surf Forecasts:
Avalon-South surf forecast from 30 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 4PM (local time) - 1.5ft (0.4m), 11s period, ENE swell with cross-offshore winds.
- Most powerful swell: Friday 4 Sep, 10PM (local time) - 4ft (1.2m), 5s period, N swell with 78 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 4PM (local time) - 1.5ft (0.4m), 11s period with ENE 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 01) at 4PM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.8m and 4s. 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 1.2m 5s and forecast to arrive on Friday (Sep 04) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 12s period and expected on Sunday (Sep 06) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Tue 1st Sep) | 1.5ft (0.4m) 11s |
| Best Surf | 4PM (Tue 1st Sep) | 1.5ft (0.4m) 11s |
| Most Powerful | 10PM (Fri 4th Sep) | 4ft (1.2m) 5s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
The Lowdown
Righto, let’s have a look at what’s on offer for Avalon-South over the next 16 days.
Truth be told, it’s a pretty bleak run. There’s not a single standout session across the whole period, and the vast majority of the time we’re looking at small, weak swell with poor surf quality. The first proper sniff of anything surfable doesn’t show up until Tuesday the 1st of September, and even then it’s only a 1/10 rated session – tiny waist-high lines with a long period swell of 11 seconds. The water temp is sitting at 64°, which is pretty much bang on average for this time of year, so no surprises there.
From the 30th of August right through to the 14th of September, the waves barely top 4 ft at best, and that’s on Sunday the 6th of September afternoon with a horrible 4-second period and onshore wind. The combined energy rarely breaks into triple digits – most days sit between 14 and 93 (weak energy). Winds are often cross-on or onshore, and when we do get glassy or offshore conditions, the swell is too small to do anything with.
There is one slight flicker: Saturday the 5th of September afternoon sees a fresh offshore wind from the west at 22 mph, but the swell is only 2 ft from the NE with a 5-second period – barely a ripple, and the combined energy is just 21 (weak). That’s more of a kite session than a surf session, to be honest.
For the whole 16-day window, the only break on offer is Avalon-South – a beginner-friendly, fairly consistent spot that is fairly exposed to swell and works best with ENE direction. But with the forecast we’ve got, there’s nothing here that gets the heart pumping. The setup looks far more interesting for kite surfing than paddle surfing on most days.
Hang in there – forecasts can change, and it tends not to stay this quiet forever.
Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Wed morning, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Sat morning, min 13°C on Thu night). Winds increasing (light winds from the W on Thu night, fresh winds from the NW by Sat morning). | ||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 8 | ENE 9 | ENE 9 | ENE 9 | ENE 11 | ENE 11 | NE 6 | ENE 10 | NNE 6 | ENE 10 | NE 6 | SSE 10 | SSE 10 | ENE 10 | NE 4 | NE 5 | NNE 5 | NE 5 | E 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 24 | 17 | 16 | 15 | 23 | 37 | 34 | 33 | 33 | 33 | 19 | 35 | 33 | 19 | 19 | 25 | 27 | 10 | 9 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-on | cross | cross | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | off | cross-off |
High Tide | 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 | 2:40PM1.43m | 3:45AM0.95m | |||||||
Low Tide | 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 | 7:48AM0.45m | 9:47PM0.31m | |||||||
 |  | | | | |  | |  | | | | | | | | | | | |
 | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — |
 | — | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 18 | 17 | 15 | 24 | 26 | 20 | 27 | 26 | 21 | 23 | 23 | 16 | 19 | 18 | 18 | 29 | 26 | 18 |
Feels °C | 15 | 15 | 14 | 13 | 20 | 22 | 17 | 24 | 23 | 19 | 18 | 20 | 13 | 15 | 13 | 14 | 23 | 21 | 13 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 8 | S 9 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | SSE 10 | SSE 10 | S 10 | S 8 | NE 5 | S 10 | S 10 | S 10 |
| kJ | 219 | 142 | 126 | 134 | 192 | 182 | 133 | 106 | 76 | 50 | 52 | 35 | 33 | 174 | 71 | 25 | 71 | 48 | 48 |
Swell 2 Height (m) Direction Period (s) | S 17 | S 15 | S 16 | S 14 | ENE 11 | ENE 11 | NE 6 | NE 6 | NE 6 | ENE 10 | NE 6 | NE 6 | NE 6 | ENE 10 | S 11 | S 10 | ENE 9 | NE 5 | NE 6 |
| kJ | 148 | 112 | 78 | 95 | 23 | 37 | 33 | 16 | 11 | 33 | 16 | 14 | 7 | 19 | 10 | 102 | 8 | 10 | 5 |
Swell 3 Height (m) Direction Period (s) | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | N 12 | ENE 10 | ENE 10 | ENE 10 | NE 5 | ENE 10 | ENE 10 | ENE 10 | NE 7 | S 18 | ENE 10 | — | E 9 | E 11 |
| kJ | 24 | 17 | 16 | 15 | 7 | 3 | 34 | 33 | 33 | 5 | 19 | 19 | 19 | 7 | 25 | 18 | — | 7 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | NE 3 | NE 4 | NE 4 | NE 4 | NW 2 | NW 3 | NNE 6 | — | WNW 2 | SSW 6 | SW 5 | WSW 4 | NE 4 | — | NNE 5 | W 4 | SW 3 |
| kJ | — | — | 2 | 7 | 3 | 29 | 1 | 1 | 29 | — | 1 | 7 | 32 | 16 | 19 | — | 27 | 28 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2 | 2 | 10 | 2 | 2 | 0 | 0 | 2 | 0 | 4 | 2 | 0 | 1 | 2 | 123 | 4 | 11 | 161 | 2 |
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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