Surf Forecasts:
Avalon-South surf forecast from 31 Jul 2026:
- Best quality surf: Sunday 2 Aug, 4AM (local time) - 5ft (1.6m), 12s period, SSE swell with cross-offshore winds.
- Most powerful swell: Sunday 2 Aug, 1PM (local time) - 5.5ft (1.7m), 13s period, SSE swell with 904 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 10AM (local time) - 5ft (1.6m), 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 Saturday (Aug 01) at 10AM. The primary swell is predicted to be 1.6m and 9s period with a secondary swell of 0.2m and 7s. 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 1.7m 13s and forecast to arrive on Sunday (Aug 02) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 10s period and expected on Thursday (Aug 06) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sat 1st Aug) | 5ft (1.6m) 9s |
| Best Surf | 4AM (Sun 2nd Aug) | 5ft (1.6m) 12s |
| Most Powerful | 1PM (Sun 2nd Aug) | 5.5ft (1.7m) 13s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
The Lowdown
Right, folks, Rusty here. Let's have a look at the outlook for Avalon-South over the next couple of weeks. It’s a bit of a mixed bag, with a short, sharp burst of decent waves early on, then a long, frustrating dry spell.
The water temp is sitting at 65°, which is bang on average for this time of year, so no surprises there.
The best bet by a long shot is the very start of the period. Saturday, August 1st, is your day. We’ve got a clean 5ft of SSE swell rolling in, with moderate wave energy (around 450). Saturday morning is looking clean with a light cross-offshore breeze, but Saturday afternoon is the real standout – glassy conditions with a 5ft SSE swell and still packing a punch at 413 energy. That’s the pick of the entire forecast. This is a beginner-friendly break, and the water will be like glass.
Sunday the 2nd still has some size, with a bigger 5ft+ SSE swell and a very long 13-second period, pushing the energy up to 999. That’s a lot of power, and with that long period, it might be a bit fat and straight on the beach break. Morning has a light cross breeze but the wind gets on it in the afternoon, turning it choppy. It’s a runner-up, but Saturday is definitely your better bet.
From Monday the 3rd onward, the writing is on the wall. The swell drops right off to 3ft and smaller, and the energy plummets. We’re looking at a stretch from Monday the 4th all the way through to Friday the 7th of August with tiny, rideable waves that are barely big enough to bother with. After that, there’s a slight lift on Saturday the 8th with a 3ft to 4ft SSE swell, but the wind swings around onshore and chops it up. Not worth getting excited about.
From there it’s a long, low period. The rest of the outlook shows nothing but small, weak surf through to mid-August. It stays well below 3ft and the wind is often offshore but fresh, leaving the ocean clean but without any push. It’s a proper lull.
So, to sum it up: Saturday, August 1st afternoon is the absolute standout. Get in the water then. After that, it’s a long and quiet period with very little to recommend.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Mon morning, min 11°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Mon afternoon, min 8°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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 7 | ENE 7 | SSE 9 | SSE 9 | SSE 9 | SSE 13 | SE 12 | SSE 12 | SE 11 | SE 11 | SSE 10 | E 7 | SSE 10 | E 8 | ENE 13 | ENE 10 | E 9 | ENE 8 | ENE 8 | ENE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 4 | 5 | 442 | 343 | 238 | 822 | 888 | 449 | 233 | 137 | 43 | 10 | 9 | 12 | 17 | 19 | 15 | 14 | 13 | 11 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | off | cross-off | glassy | cross-off | cross | cross-on | cross-off | cross-off | cross-off | off | off | glassy | off | off | cross-on | off | off | cross-on | off |
High Tide | 9:17PM1.56m | 9:59AM1.19m | 9:52PM1.51m | 10:37AM1.23m | 10:29PM1.43m | 11:17AM1.27m | 11:10PM1.33m | 12:02PM1.31m | 11:58PM1.22m | 12:53PM1.34m | 00:57AM1.10m | 1:52PM1.38m | 2:12AM1.01m | |||||||
Low Tide | 3:56AM0.13m | 3:37PM0.35m | 4:27AM0.13m | 4:20PM0.37m | 5:00AM0.15m | 5:09PM0.40m | 5:36AM0.19m | 6:05PM0.42m | 6:17AM0.25m | 7:11PM0.44m | 7:06AM0.31m | 8:29PM0.42m | ||||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — |
 | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 14 | 14 | 16 | 16 | 16 | 20 | 20 | 15 | 17 | 18 | 11 | 16 | 16 | 13 | 15 | 14 | 14 |
Feels °C | 12 | 11 | 12 | 13 | 12 | 13 | 12 | 13 | 15 | 16 | 11 | 13 | 15 | 6 | 12 | 12 | 11 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | S 10 | SSE 9 | SSE 9 | SSE 9 | SSE 13 | SE 12 | SSE 12 | SE 11 | SE 11 | SSE 10 | SSW 5 | S 6 | SSW 9 | S 10 | S 10 | S 10 | S 9 | S 8 | S 8 |
| kJ | 4 | 593 | 442 | 343 | 238 | 822 | 888 | 449 | 233 | 137 | 43 | 17 | 18 | 27 | 250 | 327 | 635 | 398 | 305 | 212 |
Swell 2 Height (m) Direction Period (s) | E 13 | ENE 7 | ENE 7 | SSE 13 | SSE 12 | SE 15 | S 21 | NE 5 | NE 5 | E 15 | ESE 8 | E 7 | E 7 | E 8 | E 8 | ENE 10 | E 9 | ENE 8 | ENE 8 | ENE 7 |
| kJ | 3 | 5 | 5 | 68 | 153 | 174 | 35 | 26 | 16 | 18 | 12 | 9 | 4 | 12 | 4 | 19 | 15 | 14 | 13 | 11 |
Swell 3 Height (m) Direction Period (s) | — | E 13 | E 12 | NE 7 | SE 14 | NE 9 | E 17 | S 21 | S 21 | S 20 | NE 4 | SSE 10 | SSE 10 | NE 9 | ENE 13 | E 7 | NE 9 | NE 12 | E 12 | E 12 |
| kJ | — | 3 | 3 | 2 | 203 | 3 | 6 | 36 | 34 | 7 | 3 | 10 | 9 | 3 | 17 | 4 | 3 | 6 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | S 9 | — | — | — | — | — | NE 8 | NNE 5 | NW 2 | NE 5 | SW 4 | WNW 3 | — | SSW 7 | W 3 | — | — | — | — | — |
| kJ | 700 | — | — | — | — | — | 3 | 49 | 1 | 8 | 7 | 2 | — | 74 | 3 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 45 | 2 | 0 | 0 | 0 | 1 | 187 | 0 | 0 | 0 | 2 | 128 | 174 | 3 | 3 | 10 | 2 | 2 | 7 | 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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