
Surf Forecasts:
Avalon-South surf forecast from 25 Jul 2026:
- Best quality surf: Friday 31 Jul, 10PM (local time) - 7.5ft (2.3m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Friday 31 Jul, 4PM (local time) - 8ft (2.5m), 10s period, SSE swell with 1,129 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 10PM (local time) - 7.5ft (2.3m), 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 Friday (Jul 31) at 10PM. The primary swell is predicted to be 2.3m and 9s period with a secondary swell of 0.2m and 8s. 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 2.5m 10s and forecast to arrive on Friday (Jul 31) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 11s period and expected on Thursday (Jul 30) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Fri 31st Jul) | 7.5ft (2.3m) 9s |
| Best Surf | 10PM (Fri 31st Jul) | 7.5ft (2.3m) 9s |
| Most Powerful | 4PM (Fri 31st Jul) | 8ft (2.5m) 10s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’ll be straight with you – the next couple of weeks are a real mixed bag for Avalon-South. The first week is almost a complete write-off with tiny, weak swell and rubbish conditions. The real action, if you can call it that, doesn’t get going until the second weekend. There’s a gap of about six days with no real recommendations before we get something worth paddling out for.
Right now, through Saturday the 25th and most of the following week, it’s gutless. We’re looking at waves barely 0.7ft to 1ft, with a tiny 8-second period. The combined swell energy is pitiful, sitting at just 8 (weak). The water temp is a pleasant 65°, which is about average for this time of year, so that’s a small comfort. For the first few days, the wind is mostly light and offshore or glassy, but there’s just nothing to surf. It’s a sad sight.
We finally get a pulse on Friday the 31st of July. The afternoon sees a sudden spike to 8ft from the SSE, but the period is a short 10 seconds, and the cross-shore wind is going to chop it up. The energy is there with a reading of 1129 (strong), but it’s a messy, marginal affair. Saturday the 1st of August is a better bet for the morning with a clean 2ft SE swell and a nice 12-second period (162 – moderate energy), but it’s small.
The standout, and I mean the *only* standout, looks like Sunday morning, the 2nd of August. The swell jumps to a clean 7ft from the SE, with a long 12-second period. The combined energy is pumping at 1154 (strong). The wind is light and cross-off from the NNW, so you’re looking at clean, well-shaped lines. This is the one to aim for. It’s a bit on the bigger side for beginners, but for the experienced crew, it’ll be fun. The crowd factor at Avalon-South can be ‘often’ an issue, so expect company for sure. After that, Monday the 3rd offers a smaller, clean 4ft set in the morning (334 – moderate energy), and by Friday the 7th of August, there’s another promising morning with a 6ft easterly swell and clean offshore WSW wind (798 – strong energy). That one looks well worth a look too.
The long-range stuff from the 5th to the 9th is there, but it’s a bit of a gamble. The swell sticks around 5ft to 8ft, but the wind often turns onshore or cross-onshore, making it lumpy. The short 8-second period on those bigger days will mean crumbly, less powerful waves.
So, to sum it up: the first week is a total drought. Don’t bother. Your best bet is the morning of Sunday the 2nd of August. The second option is the morning of Friday the 7th of August. That’s your window.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sat afternoon, min 11°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Tue afternoon, min 8°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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) | ENE 8 | ENE 8 | ENE 8 | NE 8 | NE 8 | SE 18 | NE 7 | SE 8 | SE 7 | SE 7 | ESE 7 | SE 13 | SE 13 | NE 7 | NE 6 | S 11 | S 11 | S 10 | SSE 10 | SSE 9 |
Wave Graph | ||||||||||||||||||||
7 | 7 | 6 | 2 | 2 | 12 | 2 | 23 | 14 | 8 | 8 | 7 | 7 | 7 | 2 | 0 | 0 | 0 | 1129 | 775 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | off | cross-on | cross-off | off | cross-on | cross-off | cross-off | cross-on | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 5:26PM1.39m | 6:09AM0.92m | 6:11PM1.44m | 6:54AM0.96m | 6:53PM1.50m | 7:34AM1.01m | 7:32PM1.55m | 8:11AM1.05m | 8:08PM1.58m | 8:47AM1.10m | 8:43PM1.58m | 9:23AM1.14m | 9:17PM1.56m | |||||||
Low Tide | 00:26AM0.37m | 11:27AM0.46m | 1:07AM0.31m | 12:14PM0.43m | 1:44AM0.25m | 12:57PM0.39m | 2:19AM0.20m | 1:38PM0.36m | 2:53AM0.16m | 2:17PM0.34m | 3:24AM0.14m | 2:56PM0.33m | 3:56AM0.13m | |||||||
— | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | |
5:09 | — | — | 5:09 | — | — | 5:10 | — | — | 5:12 | — | — | 5:12 | — | — | 5:13 | — | — | 5:14 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 13 | 17 | 16 | 15 | 16 | 16 | 15 | 19 | 19 | 14 | 15 | 14 | 10 | 13 | 14 | 13 | 14 | 14 | 12 |
Feels °C | 17 | 8 | 14 | 13 | 15 | 14 | 14 | 13 | 16 | 16 | 10 | 8 | 6 | 4 | 7 | 8 | 8 | 9 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 11 | S 11 | S 10 | S 10 | S 9 | S 8 | S 8 | S 9 | S 9 | S 8 | SE 6 | S 18 | NE 7 | S 11 | — | — | S 10 | — | SSE 9 |
416 | 573 | 932 | 627 | 307 | 225 | 147 | 61 | 38 | 24 | 12 | 2 | 6 | 7 | 1890 | — | — | 1600 | — | 775 | |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | NE 8 | NE 8 | NE 8 | S 10 | SE 8 | SE 7 | SE 7 | ESE 7 | S 7 | NE 7 | S 15 | NE 6 | — | — | — | — | E 13 |
7 | 7 | 6 | 2 | 2 | 2 | 33 | 23 | 14 | 7 | 4 | 1 | 2 | 17 | 2 | — | — | — | — | 3 | |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | — | — | — | SE 18 | NE 7 | SE 16 | NNE 4 | SE 15 | SE 14 | SE 13 | SE 13 | SE 13 | — | — | — | — | — | — |
1 | 1 | — | — | — | 12 | 2 | 10 | 1 | 8 | 8 | 7 | 7 | 7 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | SW 4 | — | — | — | — | — | NNE 4 | W 2 | NE 2 | WSW 3 | NW 4 | WSW 4 | SSW 6 | S 11 | S 11 | S 11 | — | SSE 10 | — |
— | 14 | — | — | — | — | — | 7 | 1 | 1 | 3 | 10 | 24 | 181 | 3046 | 2566 | 3113 | — | 1129 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 3 | 2 | 10 | 2 | 2 | 117 | 2 | 2 | 126 | 128 | 253 | 370 | 3 | 3 | 7 | 3 | 3 | 7 | 0 |
Best forecast wave conditions in Sydney North Coast | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










