Surf Forecasts:
Avalon-North surf forecast from 17 Jul 2026:
- Best quality surf: Sunday 19 Jul, 10PM (local time) - 6.5ft (2.0m), 10s period, ENE swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 4AM (local time) - 7ft (2.2m), 12s period, ENE swell with 1,230 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 10PM (local time) - 6.5ft (2.0m), 10s period with ENE 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 Sunday (Jul 19) at 10PM. The primary swell is predicted to be 2.0m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Avalon-North in the next 16 days are 2.2m 12s and forecast to arrive on Sunday (Jul 19) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 8s period and expected on Thursday (Jul 23) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 19th Jul) | 6.5ft (2.0m) 10s |
| Best Surf | 10PM (Sun 19th Jul) | 6.5ft (2.0m) 10s |
| Most Powerful | 4AM (Sun 19th Jul) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Avalon-North over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s shaping up for Avalon-North.
Right off the bat, I gotta be straight with you – the next week or so is looking pretty grim for any decent surf. We’ve got a long stretch of small, weak, and often choppy conditions. The real action, if you can call it that, doesn’t show up until a specific window.
The first real flicker of hope comes on Monday, July 20th, in the morning. The swell is from the ENE at about 6ft, with a period of 10 seconds. The wind is glassy, calm, and the combined energy is moderate at 594. It’s not giant, but it’s the cleanest it’s been all week. If you’re an advanced surfer, this is your best bet for a session. The water temp is about 65°, which is pretty normal for this time of year.
Then, Tuesday, July 21st, morning is another solid option. Swell is about 5ft from the ENE, also 10 seconds, with glassy, offshore winds. The energy is moderate at 380. It’s a slightly smaller but still clean wave. The afternoon on Tuesday goes onshore, so don’t sleep on the morning.
After that, the energy drops off fast. The swell shrinks and the wind gets messy or straight offshore, but the waves are just too small. From Wednesday the 22nd onward, it’s a long, slow fade into nothing. By the end of the month and into August, you’re looking at tiny knee-high slop with weak energy.
So, to be honest, the standout here is the Monday morning (July 20th) at Avalon-North. It’s the best combo of size, clean conditions, and moderate energy. The Tuesday morning is a close second. After that, the forecast is a painful wait. Don’t expect much for the rest of the 16 days.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Very mild (max 17°C on Sat morning, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Wed afternoon, min 10°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Fri 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||
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) | E 6 | E 6 | E 6 | E 7 | E 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 35 | 65 | 83 | 121 | 425 | 1066 | 787 | 740 | 585 | 510 | 455 | 380 | 380 | 258 | 164 | 121 | 94 | 98 | 94 | 70 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross-off | glassy | on | off | off | glassy | off | off | cross-on | off |
High Tide | 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 | 3:41PM1.31m | ||||||||
Low Tide | 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 | 8:43AM0.45m | 10:38PM0.48m | |||||||
 |  |  |  |  | |  | | | | | | | | | | | | | | |
 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — |
 | 5:05 | — | — | 5:05 | — | — | 5:06 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 15 | 16 | 15 | 14 | 15 | 15 | 15 | 19 | 20 | 15 | 16 | 15 | 14 |
Feels °C | 16 | 15 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 12 | 13 | 14 | 14 | 14 | 16 | 18 | 12 | 13 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | E 6 | E 6 | E 6 | E 7 | E 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 7 |
| kJ | 35 | 65 | 83 | 121 | 425 | 1066 | 787 | 740 | 585 | 510 | 455 | 380 | 380 | 258 | 164 | 121 | 94 | 98 | 94 | 131 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 10 | S 10 | S 10 | S 9 | S 17 | S 16 | S 13 | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | S 10 | ENE 9 |
| kJ | 32 | 106 | 48 | 45 | 24 | 211 | 122 | 160 | 184 | 175 | 84 | 56 | 49 | 31 | 30 | 20 | 18 | 8 | 17 | 70 |
Swell 3 Height (m) Direction Period (s) | ENE 8 | S 21 | S 21 | S 20 | S 18 | SE 17 | S 8 | SE 16 | SE 15 | SE 15 | SE 14 | S 16 | S 15 | S 14 | S 12 | S 13 | — | — | S 17 | S 14 |
| kJ | 19 | 35 | 34 | 32 | 107 | 12 | 11 | 10 | 9 | 8 | 8 | 19 | 17 | 4 | 3 | 3 | — | — | 6 | 15 |
Wind waves Height (m) Direction Period (s) | — | — | S 4 | S 4 | — | — | — | — | — | — | — | — | — | — | WNW 2 | WSW 3 | SW 4 | SSW 4 | S 5 | — |
| kJ | — | — | 12 | 3 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 6 | 8 | 28 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1 | 1 | 79 | 90 | 7 | 50 | 7 | 0 | 0 | 1 | 0 | 0 | 182 | 0 | 0 | 0 | 0 | 0 | 7 | 0 |
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.
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