
Surf Forecasts:
Avalon-South surf forecast from 30 Jul 2026:
- Best quality surf: Sunday 2 Aug, 4AM (local time) - 5ft (1.5m), 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 862 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 1AM (local time) - 3.5ft (1.0m), 14s 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 02) at 1AM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 1.3m and 9s. 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 2.2m 9s period and expected on Friday (Jul 31) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 2nd Aug) | 3.5ft (1.0m) 14s |
| Best Surf | 4AM (Sun 2nd Aug) | 5ft (1.5m) 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
Alright, let’s have a look at what’s coming our way.
Right off the bat, I gotta be straight with you – this is a quiet stretch for Avalon-South. The first few days are barely ripples. Friday the 31st of July, we’re looking at tiny 0.3ft to 0.7ft easterly slop, and the wind is swinging around cross-off to cross. It’s clean but there’s just nothing to ride. Saturday the 1st of August starts the same – 0.7ft – but then the afternoon throws a bit of a curveball. A 5ft SSE swell rolls in with a period of 9 seconds, and while it’s got moderate energy (410), the wind goes onshore from the east. It’s marginal and the conditions are questionable. That’s more of a wait-and-see kind of session.
Sunday the 2nd of August morning is actually not bad on paper – 5ft of SSE swell with a 12-second period, so that’s proper groundswell with good energy (887). Light north wind, cross-shore, clean. But that long period on a beach break means it might be a bit straight and tricky. Still, for a beginner spot like this, that’s probably the best looking window early on. The afternoon gets blown out with a strong cross-onshore, so get out early.
Monday the 3rd of August morning is clean with a light cross-off wind and a 3ft SE swell at 11 seconds. That’s got solid energy (274) and the wind is offshore from the NNW. That’s a nice, clean little morning wave. The afternoon drops to 3ft but stays offshore from the west. Worth a paddle if you’re after some gentle ones.
After that, we hit a real dry spell. Tuesday the 4th through to Thursday the 7th of August morning is mostly tiny surf – 0.3ft to 1ft – and although the wind is often offshore or cross-off, there’s just no energy. The combined energy values are down in the single digits and twenties. It’s clean but completely flat.
Now, Friday the 7th of August morning sees another pulse – 5ft SSE at 9 seconds (377 energy) with a clean cross-off breeze. Marginal, but it’s the best thing in a while. Then Saturday the 8th of August morning is a real standout for this period. 5ft SSE swell at 10 seconds, energy 486, and light offshore wind from the WSW. The conditions are clean, the swell is solid for beginners (not too big, not too small), and the wind is perfect. That’s your best bet for the whole outlook. Get on it.
Sunday the 9th of August morning keeps it going with 4ft SE swell at 10 seconds (313 energy) and near-calm conditions, but crowds are “often” an issue here, so expect company. The afternoon gets messy with a strong cross-onshore.
Monday the 10th of August afternoon is another nice window – 4ft ESE at 11 seconds, 327 energy, with a light cross-off wind from the NNW. Clean and rideable. After that, the swell drops back down to the 2ft to 3ft range through the middle of the month. Tuesday the 11th through to Wednesday the 12th of August mornings have offshore winds and small, clean waves – 3ft to 3ft – but nothing to get excited about.
From Thursday the 13th of August onward, the wind really starts to howl – 30 to 40 km/h from the south-southwest, cross-off, and the surf is tiny. The energy stays in the low hundreds, but those are strong breezes for such little swell. By Friday the 14th and Saturday the 15th of August, it’s 2ft and windy. A kite surfer might get something out of it, but for a paddle surfer, it’s time to take a break.
So, the overall story: one real standout is Saturday the 8th of August morning. That’s the one to circle on the calendar. Clean 5ft SSE swell, light offshore wind, and the kind of conditions that make you forget the flat days. The other honorable mention is Sunday the 2nd of August morning for the bigger groundswell, but the long period might make it a bit awkward at a beach setup. The rest of the 16-day run is mostly small and ordinary.
Stay patient, and get that Saturday morning session in.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sun morning, min 10°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Mon morning, min 9°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 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) | S 10 | E 13 | ENE 7 | ENE 7 | ENE 7 | SSE 9 | SSE 14 | SSE 12 | SSE 13 | SSE 12 | SE 11 | SE 11 | SSE 10 | ESE 7 | SSE 10 | E 9 | E 13 | ENE 13 | E 9 |
Wave Graph | |||||||||||||||||||
0 | 3 | 4 | 5 | 5 | 337 | 413 | 636 | 809 | 456 | 242 | 140 | 43 | 10 | 9 | 7 | 14 | 34 | 6 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | off | cross-off | on | cross-off | cross | cross-on | cross-off | cross-off | off | off | off | cross-off | off | off | cross-off | cross-off |
High Tide | 9:23AM1.14m | 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 | |||||||
Low Tide | 3:24AM0.14m | 2:56PM0.33m | 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 | |||||||
— | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | |
— | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 15 | 15 | 14 | 17 | 16 | 15 | 21 | 20 | 14 | 17 | 17 | 11 | 17 | 18 | 13 |
Feels °C | 11 | 10 | 10 | 11 | 13 | 13 | 12 | 14 | 12 | 12 | 17 | 16 | 11 | 12 | 11 | 6 | 12 | 14 | 8 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 9 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 12 | SSE 13 | SSE 12 | SE 11 | SE 11 | SSE 10 | ESE 7 | ESE 7 | S 10 | S 10 | S 11 | S 9 |
955 | 612 | 632 | 577 | 380 | 337 | 249 | 636 | 809 | 456 | 242 | 140 | 43 | 10 | 5 | 77 | 418 | 769 | 434 | |
Swell 2 Height (m) Direction Period (s) | — | NE 7 | ENE 7 | ENE 7 | ENE 7 | SSE 13 | SSE 14 | SE 14 | S 21 | NE 5 | NE 5 | NE 5 | ESE 8 | SSE 10 | SSE 10 | E 9 | E 9 | ENE 13 | E 9 |
— | 2 | 4 | 5 | 5 | 68 | 413 | 248 | 36 | 32 | 11 | 5 | 21 | 10 | 9 | 7 | 6 | 34 | 6 | |
Swell 3 Height (m) Direction Period (s) | — | E 13 | E 13 | E 13 | E 12 | ENE 7 | NE 6 | NE 9 | E 17 | S 21 | NE 8 | ENE 7 | E 15 | ENE 5 | NE 5 | NE 9 | E 13 | E 18 | E 12 |
— | 3 | 3 | 3 | 3 | 5 | 2 | 3 | 6 | 36 | 2 | 5 | 4 | 2 | 1 | 3 | 14 | 6 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | S 9 | — | — | — | — | — | NE 4 | NNE 5 | NNE 5 | W 3 | WNW 3 | SW 4 | SSW 6 | SW 6 | — | — | — |
— | — | 840 | — | — | — | — | — | 10 | 47 | 19 | 4 | 4 | 21 | 29 | 72 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 2 | 3 | 81 | 2 | 2 | 10 | 0 | 1 | 10 | 0 | 0 | 0 | 0 | 65 | 47 | 1 | 3 | 0 | 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.











