
Surf Forecasts:
Avalon-South surf forecast from 16 Jul 2026:
- Best quality surf: Monday 20 Jul, 1AM (local time) - 6ft (1.9m), 10s period, ENE swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 7AM (local time) - 7ft (2.2m), 11s period, ENE swell with 1,173 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 1AM (local time) - 6ft (1.9m), 10s 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 Monday (Jul 20) at 1AM. The primary swell is predicted to be 1.9m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Avalon-South in the next 16 days are 2.2m 11s and forecast to arrive on Sunday (Jul 19) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Friday (Jul 24) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 20th Jul) | 6ft (1.9m) 10s |
| Best Surf | 1AM (Mon 20th Jul) | 6ft (1.9m) 10s |
| Most Powerful | 7AM (Sun 19th Jul) | 7ft (2.2m) 11s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
The Lowdown
Right, mate, Rusty here. Let’s have a look at what’s on the cards for Avalon-South over the next couple of weeks.
Alright, first up, the outlook is a bit of a mixed bag. We’ve got a long quiet spell to start, then a few windows of opportunity, and a possible standout right at the end. The water temperature is sitting about average for the time of year, so nothing unusual there.
The first proper reason to paddle out doesn’t come until Monday morning, the 20th of July. The wind is glassy, with a light offshore from the WNW, and the swell is a clean 6 ft from the ENE at a 10-second period. That’s a moderate wave energy (628), and it’s a good size for a beginner-friendly break, not too big, not too small. The morning will be the pick. The afternoon on Monday goes cross-onshore and choppy, so get out early.
Tuesday morning, the 21st of July, is another glassy window. A 5 ft ENE swell at 10 seconds (410) will be clean and fun for the learner crew. Again, the morning is the move.
After that, the surf drops right off. From Wednesday the 22nd through to Sunday the 26th, it’s tiny and mostly messy. A few days of flat, weak energy, with nothing worth chasing.
Now, here’s the one that’s got my attention. Monday the 27th of July. The morning shows a 5 ft SE swell, with a very long 12-second period, and a clean offshore breeze from the WSW. The wave energy is solid (741). That’s a groundswell, and for a spot that’s fairly exposed to the ENE, this SE direction is a bit different, but the clean conditions and the long-period energy will still produce some nice, lined-up waves. This is the best on offer in the whole forecast. The afternoon on the 27th gets a bit cross-shore, so aim for first light.
The following Tuesday morning, the 28th, still has a 4 ft SE swell at 10 seconds (290) with a clean cross-offshore breeze, but it’s a step down from the Monday morning peak.
After that, the run is poor again right through to the end of the 16-day window, with tiny, weak, or onshore conditions. No good.
So, in short: hold out for the Monday and Tuesday mornings of the 20th and 21st of July for clean, small waves. But the real standout is Monday morning, the 27th of July. That’s the one to circle.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Thu night. Very mild (max 17°C on Sat morning, min 14°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Wed afternoon, min 13°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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) | ESE 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 8 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 |
Wave Graph | |||||||||||||||||||
31 | 33 | 32 | 82 | 113 | 152 | 258 | 1111 | 842 | 720 | 619 | 584 | 548 | 402 | 325 | 258 | 264 | 217 | 226 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross-off | glassy | on | off | cross | cross-on | cross-off |
High Tide | 10:33AM1.22m | 10:29PM1.65m | 11:21AM1.24m | 11:16PM1.49m | 12:10PM1.26m | 00:03AM1.32m | 12:59PM1.27m | 00:53AM1.15m | 1:51PM1.28m | 1:50AM1.02m | 2:46PM1.29m | 2:56AM0.92m | |||||||
Low Tide | 4:28AM-0.03m | 4:08PM0.28m | 5:11AM0.04m | 5:02PM0.34m | 5:51AM0.13m | 6:00PM0.41m | 6:31AM0.22m | 7:03PM0.47m | 7:11AM0.31m | 8:13PM0.51m | 7:54AM0.39m | 9:28PM0.51m | |||||||
— | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | |
— | — | 5:05 | — | — | 5:05 | — | — | 5:06 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | |
mm | 8 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 15 | 16 | 16 | 16 | 17 | 16 | 16 | 19 | 20 | 17 |
Feels °C | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 14 | 15 | 14 | 14 | 14 | 14 | 16 | 15 | 16 | 17 | 17 | 13 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 6 | S 6 | E 7 | S 10 | E 7 | E 8 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 |
162 | 61 | 33 | 82 | 48 | 152 | 258 | 1111 | 842 | 720 | 619 | 584 | 548 | 402 | 325 | 258 | 264 | 217 | 226 | |
Swell 2 Height (m) Direction Period (s) | S 18 | E 6 | E 6 | S 10 | S 21 | S 10 | ENE 10 | S 17 | S 16 | S 13 | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 11 |
26 | 33 | 32 | 78 | 34 | 46 | 170 | 211 | 174 | 160 | 138 | 134 | 84 | 56 | 51 | 31 | 30 | 17 | 20 | |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | S 21 | S 19 | S 20 | S 9 | SE 17 | SE 17 | SE 16 | SE 15 | SE 15 | SE 14 | SE 14 | S 15 | S 14 | S 13 | — | — |
5 | 19 | 29 | 9 | 7 | 31 | 24 | 12 | 11 | 10 | 9 | 8 | 8 | 8 | 17 | 4 | 3 | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 6 | — | — | S 5 | E 7 | — | — | — | — | — | — | NE 3 | NNE 4 | — | — | — | — | NE 3 | NW 3 |
31 | — | — | 12 | 113 | — | — | — | — | — | — | 3 | 24 | — | — | — | — | 7 | 5 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 7 | 0 | 0 | 0 | 0 | 0 | 7 | 10 | 23 | 0 | 0 | 1 | 0 | 0 | 83 | 0 | 1 | 78 | 0 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










