Surf Forecasts:
Avalon-North surf forecast from 20 Jul 2026:
- Best quality surf: Tuesday 21 Jul, 1AM (local time) - 5ft (1.6m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 20 Jul, 10PM (local time) - 5.5ft (1.7m), 11s period, ENE swell with 643 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 1AM (local time) - 5ft (1.6m), 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 Tuesday (Jul 21) at 1AM. The primary swell is predicted to be 1.6m and 10s period. 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 1.7m 11s and forecast to arrive on Monday (Jul 20) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 15s period and expected on Saturday (Jul 25) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 21st Jul) | 5ft (1.6m) 10s |
| Best Surf | 1AM (Tue 21st Jul) | 5ft (1.6m) 10s |
| Most Powerful | 10PM (Mon 20th Jul) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Avalon-North over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a good hard look at Avalon-North for the next couple of weeks.
Alright, so the short story is this: we’ve got a small window of surfable waves coming up, but it’s nothing to write home about. The first decent session looks like Monday the 20th, but it’s a bit of a mess. After that, the surf just gets smaller and smaller until it’s basically flat. Most of the 16-day forecast is a snooze fest.
Right off the bat, on Monday the 20th, we’ve got a 6ft swell rolling in from the ENE with a period of 11 seconds. The energy is moderate (752). That’s a nice little groundswell, but the wind is a cross-on from the NE at 9 mph, which is making it choppy. The water temp is 65°, which is about average for this time of year. It’s surfable, but you’ll be fighting the bump. Tuesday the 21st cleans up a little with a lighter north wind in the morning, but the swell is already dropping to 5ft. It’s a cross-shore breeze, so it’s a bit raggedy.
The best chance to get a clean wave is Wednesday morning the 22nd. The swell is down to 4ft from the ENE with a 10-second period, but the wind goes light offshore from the west. That’s a clean morning. The energy is still moderate (253). It’s not big, but it’ll be the cleanest it gets. Thursday morning the 23rd is also clean with a nice offshore breeze, but the swell is a tiny 3ft.
After that, it’s a long slow slide into flatness. From Friday the 24th all the way through to the end of the forecast, the swell height drops below 2ft, and the energy numbers fall way off. By the 25th, we’re looking at 0.7ft and 1ft swells. There’s a little spike of energy on the 2nd of August with a 1ft SSE swell giving a reading of 107, but with a period of 16 seconds, it’s going to be barely a bump. The wind is cross-shore, so it’s not clean.
On the whole, this is a pretty flat run for Avalon-North. The best on offer is Wednesday morning the 22nd. It’s small, but the wind is offshore and it’ll be glassy. If you’re desperate for a paddle, that’s your window. Otherwise, save your energy.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Wed morning, min 11°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Thu afternoon, min 7°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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) | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | ENE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 743 | 540 | 433 | 314 | 218 | 253 | 210 | 168 | 119 | 92 | 45 | 40 | 27 | 27 | 18 | 6 | 6 | 6 | 2 | 6 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross-on | cross-off | off | cross-on | off | off | cross-off | cross-off | cross-off | glassy | off | off | cross-off | off | off | glassy | off |
High Tide | 00:53AM1.15m | 1:51PM1.28m | 1:50AM1.02m | 2:46PM1.29m | 2:56AM0.92m | 3:41PM1.31m | 4:08AM0.88m | 4:36PM1.34m | 5:15AM0.88m | 5:26PM1.39m | 6:09AM0.92m | 6:11PM1.44m | ||||||||
Low Tide | 7:03PM0.47m | 7:11AM0.31m | 8:13PM0.51m | 7:54AM0.39m | 9:28PM0.51m | 8:43AM0.45m | 10:38PM0.48m | 9:37AM0.48m | 11:38PM0.43m | 10:34AM0.49m | 00:26AM0.37m | 11:27AM0.46m | 1:07AM0.31m | |||||||
 |  | | | |  |  | | | | | | | | | | | | | | |
 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — |
 | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | — | 5:09 | — | — | 5:09 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 16 | 16 | 15 | 19 | 19 | 16 | 18 | 18 | 11 | 13 | 13 | 10 | 18 | 17 | 12 | 17 | 16 | 14 |
Feels °C | 13 | 13 | 13 | 13 | 13 | 16 | 16 | 13 | 13 | 11 | 4 | 10 | 10 | 6 | 13 | 11 | 7 | 14 | 14 | 11 |
Swell 1 Height (m) Direction Period (s) | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 9 | S 9 | S 15 | S 12 | S 11 | S 12 | S 11 | S 10 | S 9 |
| kJ | 743 | 540 | 433 | 314 | 218 | 253 | 210 | 168 | 119 | 92 | 45 | 561 | 434 | 1788 | 690 | 408 | 625 | 536 | 424 | 249 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | SSW 5 | S 10 | SE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | ENE 8 |
| kJ | 134 | 84 | 56 | 32 | 31 | 17 | 20 | 8 | 5 | 7 | 2 | 40 | 27 | 27 | 18 | 6 | 6 | 6 | 2 | 6 |
Swell 3 Height (m) Direction Period (s) | SE 15 | SE 14 | S 16 | S 15 | S 14 | S 12 | — | — | S 10 | SE 8 | S 18 | E 7 | S 21 | — | NE 10 | S 19 | E 9 | E 8 | E 8 | E 9 |
| kJ | 9 | 8 | 19 | 17 | 4 | 11 | — | — | 8 | 3 | 6 | 1 | 35 | — | 4 | 28 | 2 | 1 | 1 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 3 | NE 4 | WNW 2 | — | W 3 | W 3 | SSW 5 | SSW 8 | — | — | — | W 3 | — | W 4 | — | — | — |
| kJ | — | — | — | 6 | 24 | 1 | — | 2 | 1 | 15 | 284 | — | — | — | 3 | — | 7 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1 | 0 | 1 | 161 | 0 | 0 | 5 | 0 | 0 | 17 | 1 | 1 | 2 | 2 | 3 | 45 | 2 | 2 | 3 | 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.
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