Surf Forecasts:
Avalon-South surf forecast from 10 Jul 2026:
- Best quality surf: Saturday 11 Jul, 7AM (local time) - 4ft (1.2m), 9s period, SE swell with cross-offshore winds.
- Most powerful swell: Saturday 11 Jul, 7AM (local time) - 4ft (1.2m), 9s period, SE swell with 225 kJ wave energy.
- Next surfable swell (1★+): Saturday 11 Jul, 7AM (local time) - 4ft (1.2m), 9s period with SE 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 (Jul 11) at 7AM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.7m and 13s. 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 9s and forecast to arrive on Saturday (Jul 11) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 10s period and expected on Wednesday (Jul 15) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 11th Jul) | 4ft (1.2m) 9s |
| Best Surf | 7AM (Sat 11th Jul) | 4ft (1.2m) 9s |
| Most Powerful | 7AM (Sat 11th Jul) | 4ft (1.2m) 9s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
Alright, let’s break down what’s coming for Avalon-South over the next couple weeks.
Right off the bat, this is going to be a mellow run. We get one clean little window early, then the surf just vanishes for days before a pulse of energy tries to build again toward the end.
The real standout is Saturday morning, July 11. That’s your session. Swell is 3ft from the ESE with a long 12-second period, giving it some proper push (combined energy 385). Winds are light and cross-off from the NW, so the surface will be glassy. This is a perfect setup for beginners – the break is well suited for it. That’s the best you’re going to see.
After that, the swell fades out quick. Sunday the 12th morning still has some 2ft clean waves with offshore wind around 16 mph, but the energy is already dropping (104). Monday the 13th is tiny, and from Tuesday the 14th through Friday the 17th morning, it’s basically flat – a stretch of four days with nothing rideable.
Friday the 17th morning brings a short-period S swell, 4ft but with only 6 seconds, so it’s weak and a bit lumpy (combined energy 132). Rain showers around, and cross-off wind might clean it some, but not worth chasing. The rest of that weekend stays messy.
Next one to watch is Monday, July 20 in the morning. We’ve got a 5ft ENE swell with a period of 10 seconds, combined energy jumps to 840 – that’s solid – and clean NNW cross-off wind. But the forecast flags this as marginal. That’s a lot of size for beginners, and the period means quick, close sets. For experienced surfers, this could be the second-best window.
Tuesday and Wednesday the 21st and 22nd have some surf around 3 to 5ft, but winds are off and quality is just ordinary. After that, the last week goes very small and weak, barely worth paddling out.
So bottom line: Saturday morning July 11 is the one to aim for. Clean, nice period, just the right size for the spot. The 20th has more size but with a question on conditions. The rest of the 16 days is either flat or forgettable.
Get on it early on the 11th – that’s about as good as it gets.
- Rusty
Short Range ForecastMostly dry. Very mild (max 19°C on Mon afternoon, min 10°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed night. Very mild (max 19°C on Tue morning, min 12°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Fri 17 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SE 10 | ESE 12 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | SE 8 | SSW 8 | S 10 | SW 3 | E 10 | S 10 | S 9 | S 10 | S 8 | E 11 | E 9 | S 6 | S 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 365 | 213 | 217 | 180 | 86 | 52 | 16 | 7 | 3 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 6 | 89 | 101 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | cross-off | off | off | off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | glassy | cross-off | cross |
High Tide | 4:58AM1.04m | 5:23PM1.62m | 6:07AM1.06m | 6:19PM1.72m | 7:08AM1.09m | 7:13PM1.80m | 8:04AM1.13m | 8:04PM1.84m | 8:56AM1.16m | 8:54PM1.83m | 9:45AM1.19m | 9:42PM1.77m | 10:33AM1.22m | ||||||||
Low Tide | 11:12PM0.28m | 10:38AM0.30m | 00:15AM0.16m | 11:38AM0.28m | 1:13AM0.05m | 12:36PM0.26m | 2:06AM-0.02m | 1:30PM0.24m | 2:56AM-0.06m | 2:23PM0.23m | 3:43AM-0.06m | 3:16PM0.24m | 4:28AM-0.03m | 4:08PM0.28m | |||||||
 |  |  | | | |  | | | | | | | | |  |  |  | | | | |
 | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — |
 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — | — | 5:02 | — | — | 5:02 | — | — | 5:04 | — | — | 5:05 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 6 | 2 | 1 |
Temp °C | 14 | 17 | 17 | 14 | 15 | 14 | 11 | 18 | 19 | 12 | 19 | 18 | 13 | 14 | 14 | 14 | 14 | 16 | 16 | 14 | 16 |
Feels °C | 13 | 15 | 14 | 10 | 8 | 7 | 6 | 14 | 15 | 7 | 13 | 13 | 8 | 8 | 9 | 10 | 10 | 13 | 15 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 8 | ESE 10 | ESE 10 | ESE 10 | SSW 6 | SSW 7 | SSW 12 | SSW 8 | S 7 | S 10 | SSW 11 | — | S 9 | S 10 | S 15 | S 14 | S 12 | ESE 6 | E 6 |
| kJ | 365 | 172 | 132 | 180 | 86 | 52 | 14 | 18 | 45 | 13 | 4 | 8 | 24 | — | 665 | 660 | 5 | 15 | 26 | 30 | 28 |
Swell 2 Height (m) Direction Period (s) | ESE 15 | ESE 12 | ESE 11 | SSE 8 | SE 8 | SE 8 | ESE 9 | SSW 12 | SSW 7 | S 11 | S 10 | — | E 10 | — | — | — | — | E 11 | E 9 | E 9 | E 9 |
| kJ | 42 | 213 | 217 | 45 | 18 | 10 | 16 | 27 | 9 | 9 | 9 | — | 2 | — | — | — | — | 2 | 6 | 13 | 14 |
Swell 3 Height (m) Direction Period (s) | S 16 | S 15 | S 16 | S 15 | S 13 | NE 5 | S 11 | ESE 9 | SE 8 | S 4 | S 20 | S 17 | — | — | — | — | — | — | E 9 | S 12 | S 11 |
| kJ | 5 | 4 | 5 | 4 | 3 | 1 | 3 | 7 | 3 | 1 | 8 | 5 | — | — | — | — | — | — | 6 | 26 | 22 |
Wind waves Height (m) Direction Period (s) | — | — | NNE 2 | NNW 3 | W 4 | W 4 | W 4 | WNW 4 | — | NW 3 | NW 3 | SW 3 | SSW 6 | S 10 | S 9 | — | S 8 | S 7 | SSE 7 | S 6 | S 6 |
| kJ | — | — | 1 | 10 | 27 | 21 | 14 | 8 | — | 3 | 9 | 10 | 137 | 1539 | 899 | — | 391 | 311 | 175 | 89 | 101 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 1 | 0 | 49 | 57 | 2 | 2 | 195 | 263 | 195 | 47 | 90 | 7 | 3 | 3 | 7 | 2 | 0 | 0 |
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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