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Avalon-South Surf Forecast
/ NSW – Sydney North Coast (39 breaks) / New South Wales (297 breaks) /
Avalon-South surfForecast / NSW – Sydney North Coast / Australia
12 Day Weather and Surf, issued 9 am Saturday 19 Jul 2025 AEST
Best Forecast Surf Conditions for Avalon-South this week:
The surf forecast for Avalon-South over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 21) at 1AM. The primary swell is predicted to be 1.2m and 9s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Avalon-South in the next 12 days are 2.3m 7s and forecast to arrive on Wednesday (Jul 23) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Monday (Jul 21) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 21st Jul) | 4ft (1.2m) 9s |
| Best Surf | 1AM (Wed 23rd Jul) | 7.5ft (2.3m) 7s |
| Most Powerful | 1AM (Wed 23rd Jul) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Avalon-South over the next 12 days.
Short Range Forecast Mostly dry. Very mild (max 16°C on Sat morning, min 8°C on Sat night). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Tue night. Very mild (max 18°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 7 | 7 | 9 | 9 | 9 | 8 | 9 | 8 | 7 | 8 | 10 | 9 | 6 | 7 | 8 | 8 | 8 | 10 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 47 | 41 | 32 | 37 | 78 | 235 | 230 | 233 | 341 | 439 | 393 | 982 | 257 | 386 | 304 | 312 | 283 | 167 | 191 | 264 | 350 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- on | off | cross- off | cross | glass | off | on | cross | cross | cross- on | cross- off | cross- off | glass | cross- off | cross- off | cross- on | glass | cross | cross | cross- off |
High Tide / height (m) | 3:13PM 1.44 | 3:36AM 1.03 | 4:15PM 1.51 | 4:53AM 1.00 | 5:14PM 1.59 | 6:03AM 1.02 | 6:10PM 1.66 | 7:02AM 1.05 | 7:03PM 1.71 | 7:53AM 1.08 | 7:51PM 1.74 | 8:39AM 1.12 | 8:36PM 1.72 | ||||||||
Low Tide / height (m) | 9:53PM 0.37 | 9:26AM 0.32 | 11:06PM 0.29 | 10:28AM 0.35 | 12:11AM 0.19 | 11:28AM 0.34 | 1:07AM 0.11 | 12:25PM 0.32 | 1:57AM 0.06 | 1:17PM 0.29 | 2:42AM 0.03 | 2:06PM 0.28 | 3:24AM 0.04 | ||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | |||||||||||||||
| Sunrise | 6:54 | - | - | 6:54 | - | - | 6:54 | - | - | 6:54 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - |
| Sunset | - | 5:06 | - | - | 5:07 | - | - | 5:07 | - | - | 5:07 | - | - | 5:07 | - | - | 5:08 | - | - | 5:09 | - |
 | |  | |  |  | | | |  | |  | |  | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 | - | - | - | - | - | 1 | 3 |
| Temp. °C | 16 | 16 | 12 | 14 | 16 | 16 | 16 | 16 | 15 | 17 | 18 | 15 | 18 | 18 | 12 | 16 | 16 | 15 | 16 | 15 | 14 |
| Feels °C (?) | 14 | 14 | 10 | 10 | 12 | 13 | 14 | 14 | 13 | 13 | 14 | 11 | 16 | 17 | 7 | 12 | 12 | 13 | 11 | 11 | 7 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for NSW - Sydney North Coast
Offshore wind has become cross-off at Avalon-South (light winds from the WSW at Cromer wx 13 km from Avalon-South). 1.3m 6s windswell from the SSE with a 0.7m 6s windswell, also from the SSE. Swells combining to make to make bigger set waves.
Actual: 27 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Avalon-South surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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 12 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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