Surf Forecasts:
Avalon-South surf forecast from 12 Jul 2026:
- Best quality surf: Monday 20 Jul, 1AM (local time) - 4.5ft (1.3m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 20 Jul, 4AM (local time) - 4.5ft (1.3m), 10s period, ENE swell with 305 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 1AM (local time) - 3ft (0.9m), 8s period with E 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 (Jul 19) at 1AM. The primary swell is predicted to be 0.9m and 8s 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 1.3m 10s and forecast to arrive on Monday (Jul 20) at 4AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Wednesday (Jul 15) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 19th Jul) | 3ft (0.9m) 8s |
| Best Surf | 1AM (Mon 20th Jul) | 4.5ft (1.3m) 10s |
| Most Powerful | 4AM (Mon 20th Jul) | 4.5ft (1.3m) 10s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
Alright, Rusty here. Let’s talk about what’s going on at Avalon South.
Right now, we’ve got a flat spell to start. From Monday the 13th through Saturday the 18th of July, there’s practically nothing worth paddling out for. You’ll see tiny little bumps—0.7ft to 0.3ft—with weak energy in the single digits to just under 90, and the wind is mostly cross or cross-off, but it doesn’t matter when there’s no push. The water temp is about average for this time of year, so no surprises there.
Things finally start looking up on Sunday morning the 19th. We get a glassy, still morning with a 4ft swell from the ENE and a period of 9 seconds. The combined energy jumps to 206, which is moderate energy, and the conditions are glassy – that’s clean, no wind to mess it up. It’s surfable, but nothing to write home about. Afternoon goes cross-on and choppy, so the window is tight.
Now, the standout stretch comes on Monday the 20th and Tuesday the 21st of July. Monday morning is the pick: clean, light cross-off breeze from the WNW, head-high plus 4ft swell from the ENE with a 10-second period. That’s a nice groundswell, and the combined energy is 323, which is solid moderate. This break is a beginner-friendly spot, fairly consistent, and exposed to swell. The optimum swell direction is ENE, and that’s exactly what we’ve got. Expect clean lines and a fun paddle out. Crowds can be likely here at times, so get in early.
Tuesday morning the 21st is another good one: 4ft from the ENE again, 10-second period, clean cross-off wind, and 332 energy. Another morning worth setting the alarm for.
After that, things drop off again. Wednesday the 22nd has a glassy morning with 3ft from the ENE, but the energy is down to 204 and the conditions are just “surfable but very ordinary.” The following days through the 27th and 28th see small to tiny swell, mostly under 3ft, with moderate to fresh cross-off winds, and the energy stays low to moderate. Nothing to get excited about.
So, bottom line: if you want the best of this outlook, hit Monday the 20th or Tuesday the 21st in the morning. That’s your window. The rest is either flat or marginal.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 19°C on Mon morning, min 10°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Thu night. Very mild (max 17°C on Sat afternoon, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sun 19 | |||||||||||||||
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) | ESE 9 | ESE 8 | SE 8 | S 10 | S 10 | E 11 | E 10 | S 10 | S 10 | E 11 | S 8 | E 11 | E 10 | S 6 | S 6 | SSE 5 | E 8 | E 8 | E 8 | ENE 9 | ENE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 7 | 3 | 0 | 0 | 2 | 2 | 0 | 0 | 2 | 0 | 2 | 2 | 122 | 78 | 49 | 71 | 89 | 93 | 206 | 222 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross-on | glassy | glassy | cross-on |
High Tide | 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 | 10:29PM1.65m | 11:21AM1.24m | 11:16PM1.49m | 12:10PM1.26m | ||||||||
Low Tide | 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 | 5:11AM0.04m | 5:02PM0.34m | 5:51AM0.13m | 6:00PM0.41m | |||||||
 |  | | | | | | | | | |  |  |  | | | | |  | | | |
 | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — |
 | — | — | 5:01 | — | — | 5:02 | — | — | 5:02 | — | — | 5:04 | — | — | 5:05 | — | — | 5:05 | — | — | 5:06 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 1 | — | 2 | — | — | — | — | — |
Temp °C | 11 | 19 | 19 | 13 | 19 | 19 | 15 | 15 | 15 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 17 | 16 | 17 | 16 |
Feels °C | 6 | 15 | 15 | 9 | 15 | 15 | 11 | 10 | 11 | 11 | 10 | 11 | 12 | 12 | 12 | 13 | 14 | 15 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 11 | S 8 | SSW 7 | S 12 | SSW 11 | S 10 | S 10 | S 8 | S 14 | S 13 | S 12 | S 12 | E 5 | ENE 8 | E 8 | E 8 | E 8 | ENE 9 | ENE 9 |
| kJ | 12 | 14 | 25 | 5 | 5 | 25 | 37 | 938 | 753 | 270 | 16 | 30 | 25 | 11 | 8 | 19 | 71 | 89 | 93 | 206 | 222 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | SSW 11 | SSW 7 | S 10 | S 10 | S 7 | E 10 | — | S 17 | E 11 | — | E 11 | E 10 | S 17 | S 11 | S 10 | S 10 | S 10 | S 9 | S 8 | S 16 |
| kJ | 16 | 25 | 4 | 9 | 8 | 3 | 2 | — | 5 | 2 | — | 2 | 2 | 6 | 21 | 35 | 92 | 64 | 37 | 19 | 82 |
Swell 3 Height (m) Direction Period (s) | S 11 | ESE 8 | SE 8 | — | S 20 | E 11 | E 10 | — | — | — | — | — | — | N 9 | E 7 | S 18 | S 21 | S 16 | S 18 | S 17 | S 7 |
| kJ | 3 | 7 | 3 | — | 8 | 2 | 2 | — | — | — | — | — | — | 2 | 4 | 24 | 8 | 5 | 25 | 52 | 10 |
Wind waves Height (m) Direction Period (s) | W 4 | NW 3 | NW 3 | NW 3 | NW 3 | WNW 3 | SSW 5 | S 10 | — | — | S 8 | S 8 | S 7 | S 6 | S 6 | SSE 5 | — | — | — | — | — |
| kJ | 10 | 6 | 2 | 3 | 5 | 1 | 33 | 1325 | — | — | 505 | 302 | 212 | 122 | 78 | 49 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 193 | 12 | 54 | 504 | 560 | 332 | 19 | 3 | 46 | 2 | 3 | 7 | 3 | 45 | 45 | 3 | 0 | 0 | 0 | 0 | 1 |
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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