
Surf Forecasts:
Avalon-North surf forecast from 9 Sep 2026:
- Best quality surf: Monday 14 Sep, 1AM (local time) - 4ft (1.2m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 1AM (local time) - 6ft (1.8m), 9s period, SSE swell with 493 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 1AM (local time) - 4ft (1.2m), 6s period with NE swell.
Best Forecast Surf Conditions for Avalon-North this week:
The surf forecast for Avalon-North over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 1AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 1.2m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Avalon-North in the next 16 days are 1.8m 9s and forecast to arrive on Wednesday (Sep 16) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Thursday (Sep 10) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 14th Sep) | 4ft (1.2m) 6s |
| Best Surf | 1AM (Mon 14th Sep) | 4ft (1.2m) 6s |
| Most Powerful | 1AM (Wed 16th Sep) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Avalon-North over the next 16 days.
The Lowdown
Alright, Rusty here again, switching over to the imperial scale for you. Let’s break down what’s happening at Avalon-North over the next couple weeks. I’ll level with you – it’s a pretty lean stretch. This is a point break, so it needs a decent swell to light up, but the charts are mostly showing small stuff with lousy winds. We’ve got a long run of tiny waves and onshore or cross-shore breezes that are going to make things messy. Most days the waves are barely knee-high, and the energy is low. There are a few moments where it tries to come alive, but the wind always seems to mess it up.
Starting on Thursday the 10th of September, we’ve got nothing going. A tiny 1 ft swell from the SE with a cross-off wind, but the energy is only 26 and conditions are poor. Friday the 11th and Saturday the 12th are even smaller – 0.7 ft swells. Saturday morning does go glassy, which is beautiful, but with 0.7 ft at 14 seconds, there’s just no push. Saturday afternoon jumps to 4 ft from the SSE, but it’s blowing onshore from the ENE at 20 km/h, so it’s going to be choppy and ugly.
Sunday the 13th and Monday the 14th are more knee-high dribble with cross-onshore winds and low energy. Monday afternoon we get a bump to 4 ft from the NE, but the wind is cross-onshore and the period is a shocking 5 seconds – just pure wind chop. Tuesday the 15th brings the biggest swell of the first week – 6 ft from the SSE in the afternoon – but with 25 km/h cross-onshore wind and a 7-second period, it’s going to be a bumpy mess. That’s actually expert-level size, but the quality is so poor, it’s not worth paddling out.
After that, it drops right back to tiny from Wednesday the 16th through Friday the 18th. Friday morning the 18th has a 2 ft from the NE with a light offshore wind from the W, making it clean. But the period is only 6 seconds and the energy is just 36, so it’s too weak. The weekend of the 19th and 20th is mostly flat again.
Here’s the one bright spot. On Sunday the 20th of September, Sunday morning shows a 2 ft swell from the SSE, but with a period of 15 seconds – that’s a very long period groundswell. Energy jumps to 210, which is moderate, and the wind is a light cross-shore from the NNE. That long-period energy will wrap nicely around this point, giving you some proper shape and longer lulls between sets. The afternoon sees the swell bump to 3 ft from the same SSE direction, with a 14-second period and energy at 350 – still moderate but with more push. But the wind goes onshore from the NE at 25 km/h, making it choppy. Sunday morning the 20th is your best bet – get out early before the wind picks up. Crowds are likely here, so don’t expect solitude.
Monday the 21st gives us another chance with 5 ft from the SSE Monday afternoon, an 11-second period, and energy at 481 – that’s moderate-strong. But again, cross-onshore wind. Tuesday the 22nd drops back, and from Wednesday the 23rd onward, it’s all messy winds and tiny, weak surf, with energy falling into the low hundreds or even zero. The last couple days, the 24th and 25th, are completely flat.
So, bottom line: if you want to get wet, Sunday morning the 20th of September is the call – that long-period groundswell and light wind will be the cleanest you’ll see. Monday afternoon has more size but uglier wind. Everything else is a waiting game. Water temp is 65°F, right around average for this time of year.
Keep checking the charts, because this spot can turn on quickly.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sat morning, min 12°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Tue afternoon. Warm (max 26°C on Mon morning, min 15°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
AM | 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) | SE 10 | ESE 9 | E 15 | ENE 15 | ENE 14 | ENE 13 | ENE 14 | SSE 11 | NE 4 | ENE 13 | NE 4 | NE 6 | NE 6 | NE 5 | NE 6 | SSE 5 | SSE 7 | SSE 9 | NE 12 | E 14 | ENE 13 |
Wave Graph | |||||||||||||||||||||
25 | 17 | 4 | 21 | 18 | 18 | 19 | 350 | 13 | 17 | 28 | 102 | 40 | 92 | 85 | 37 | 293 | 493 | 6 | 6 | 17 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross-on | cross-off | glassy | on | cross-off | cross-on | cross-on | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross-on | cross-on | on | cross |
High Tide | 7:32PM1.63m | 8:07AM1.38m | 8:14PM1.58m | 8:45AM1.44m | 8:55PM1.48m | 9:21AM1.47m | 9:35PM1.36m | 9:57AM1.47m | 10:15PM1.23m | 10:34AM1.44m | 10:56PM1.11m | 11:14AM1.39m | 11:41PM1.00m | ||||||||
Low Tide | 1:14PM0.21m | 2:00AM0.03m | 2:02PM0.17m | 2:35AM0.06m | 2:47PM0.16m | 3:08AM0.11m | 3:32PM0.18m | 3:40AM0.19m | 4:16PM0.23m | 4:11AM0.28m | 5:03PM0.30m | 4:43AM0.37m | 5:53PM0.38m | ||||||||
6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:52 | — | — | |
— | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 14 | 15 | 14 | 16 | 16 | 15 | 17 | 17 | 16 | 20 | 19 | 17 | 26 | 23 | 23 | 17 | 15 | 15 | 15 | 16 | 16 |
Feels °C | 10 | 10 | 12 | 14 | 14 | 15 | 15 | 14 | 15 | 17 | 16 | 16 | 22 | 19 | 21 | 15 | 11 | 12 | 12 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | SE 10 | S 22 | S 10 | S 10 | S 10 | S 10 | S 12 | SSE 11 | S 10 | S 10 | S 11 | NE 6 | NE 6 | S 11 | NE 6 | NE 6 | NE 6 | NE 6 | S 8 | S 12 | S 11 |
25 | 233 | 947 | 618 | 529 | 377 | 411 | 350 | 194 | 167 | 184 | 102 | 40 | 79 | 85 | 31 | 13 | 5 | 405 | 734 | 375 | |
Swell 2 Height (m) Direction Period (s) | S 23 | ESE 9 | E 15 | ENE 15 | ENE 14 | S 18 | S 19 | S 17 | NE 4 | S 16 | ENE 13 | S 12 | S 11 | ENE 13 | S 10 | S 10 | ENE 13 | S 17 | S 15 | NE 12 | ENE 13 |
92 | 17 | 4 | 21 | 18 | 27 | 182 | 138 | 13 | 48 | 17 | 175 | 121 | 16 | 47 | 28 | 17 | 23 | 112 | 6 | 17 | |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 10 | ENE 15 | E 10 | ENE 13 | ENE 14 | ENE 14 | S 20 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | — | ENE 12 | ENE 13 | — | ENE 13 | NE 12 | E 14 | ENE 5 |
1 | 2 | 2 | 21 | 2 | 18 | 19 | 19 | 186 | 17 | 17 | 17 | 17 | — | 15 | 16 | — | 18 | 6 | 4 | 3 | |
Wind waves Height (m) Direction Period (s) | S 9 | S 10 | — | — | — | — | — | ENE 2 | NE 4 | NE 4 | NE 4 | N 6 | — | NE 5 | — | SSE 5 | SSE 7 | SSE 9 | — | — | — |
963 | 1048 | — | — | — | — | — | 1 | 12 | 4 | 28 | 94 | — | 92 | — | 37 | 293 | 493 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 46 | 2 | 1 | 7 | 2 | 2 | 386 | 2 | 10 | 505 | 0 | 1 | 68 | 0 | 179 | 171 | 204 | 7 | 10 | 2 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Avalon-North Surf forecast
The above surf forecast table for Avalon-North provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Avalon-North can be found by selecting the local surf guide option on the grey menu. Our Avalon-North 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-North) 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-North 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-North is 14 km (9 miles) from the city of 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.










