Surf Forecasts:
Triangles surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 4AM (local time) - 3ft (0.9m), 8s period, ESE swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 4PM (local time) - 4ft (1.2m), 10s period, ESE swell with 248 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 4AM (local time) - 3ft (0.9m), 8s period with ESE swell.
Best Forecast Surf Conditions for Triangles this week:
The surf forecast for Triangles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 4AM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.6m and 11s. Another secondary swell of 0.8m and 5s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Triangles in the next 16 days are 1.2m 10s and forecast to arrive on Wednesday (Aug 19) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 10s period and expected on Monday (Aug 24) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 19th Aug) | 3ft (0.9m) 8s |
| Best Surf | 4AM (Wed 19th Aug) | 3ft (0.9m) 8s |
| Most Powerful | 4PM (Wed 19th Aug) | 4ft (1.2m) 10s |
Table - best surf conditions forecast for Triangles over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Warm (max 20°C on Thu morning, min 14°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri night. Very mild (max 18°C on Fri morning, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | ESE 7 | ESE 7 | ESE 8 | ESE 10 | ESE 10 | SE 9 | E 6 | ESE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | NE 6 | NE 6 | ENE 6 | ENE 9 | ENE 9 | NE 8 | ENE 8 | NE 7 | NE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 124 | 132 | 140 | 94 | 248 | 95 | 66 | 31 | 82 | 45 | 21 | 13 | 9 | 9 | 3 | 8 | 30 | 17 | 22 | 47 | 56 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | glassy | on | cross-on | cross-on | cross-on | cross-off | cross | cross-off | cross | glassy | cross-on | glassy | glassy | on | cross | cross | on | cross-off |
High Tide | 12:04PM1.35m | 00:11AM1.08m | 12:52PM1.32m | 1:05AM0.96m | 1:49PM1.28m | 2:17AM0.88m | 2:54PM1.27m | 3:41AM0.86m | 4:01PM1.29m | 4:54AM0.89m | 4:58PM1.35m | 5:47AM0.94m | 5:46PM1.42m | ||||||||
Low Tide | 6:25PM0.44m | 6:11AM0.39m | 7:30PM0.50m | 6:53AM0.47m | 8:46PM0.53m | 7:49AM0.53m | 10:05PM0.51m | 8:59AM0.56m | 11:10PM0.46m | 10:09AM0.54m | 11:58PM0.39m | 11:07AM0.50m | 00:37AM0.32m | ||||||||
 | |  |  | |  | |  |  | | | | | | | | | | | |  | |
 | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | 5:25 | — | — | 5:27 | — | — | 5:27 | — | — | 5:28 | — | — | 5:29 | — | — | 5:29 | — | — | 5:30 | — |
mm | — | — | 2 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | 6 |
Temp °C | 16 | 16 | 16 | 16 | 16 | 16 | 20 | 20 | 19 | 18 | 16 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 23 | 22 | 18 |
Feels °C | 12 | 12 | 14 | 14 | 13 | 13 | 15 | 15 | 16 | 15 | 14 | 11 | 15 | 14 | 16 | 14 | 13 | 14 | 20 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | ESE 8 | ESE 7 | ESE 10 | SE 9 | E 6 | ESE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | NE 6 | NE 6 | S 8 | S 6 | S 9 | S 10 | S 10 | S 10 | NE 6 |
| kJ | 85 | 56 | 140 | 94 | 248 | 95 | 66 | 31 | 82 | 45 | 21 | 13 | 9 | 9 | 12 | 12 | 38 | 80 | 68 | 72 | 56 |
Swell 2 Height (m) Direction Period (s) | E 9 | ESE 14 | ESE 11 | ESE 10 | S 8 | E 12 | E 11 | E 10 | S 13 | SE 7 | SE 7 | SE 7 | S 5 | S 9 | ENE 6 | S 9 | S 15 | NE 8 | ENE 8 | NE 7 | S 10 |
| kJ | 6 | 71 | 113 | 90 | 10 | 3 | 2 | 2 | 3 | 7 | 7 | 2 | 2 | 14 | 3 | 15 | 72 | 17 | 22 | 24 | 45 |
Swell 3 Height (m) Direction Period (s) | SE 15 | E 9 | S 10 | S 9 | S 15 | — | E 11 | — | S 13 | S 12 | — | S 10 | SE 7 | S 5 | S 4 | ENE 9 | E 7 | E 14 | NE 4 | S 16 | S 15 |
| kJ | 9 | 7 | 48 | 26 | 4 | — | 9 | — | 3 | 3 | — | 2 | 2 | 2 | 2 | 8 | 1 | 4 | 5 | 21 | 17 |
Wind waves Height (m) Direction Period (s) | ESE 7 | ESE 7 | — | — | — | NE 5 | NE 5 | ENE 4 | — | NW 3 | — | WNW 2 | — | — | — | — | ENE 9 | NE 4 | NNW 2 | NE 7 | — |
| kJ | 124 | 132 | — | — | — | 42 | 31 | 18 | — | 1 | — | 1 | — | — | — | — | 30 | 16 | 1 | 47 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 94 | 94 | 5 | 0 | 336 | 19 | 4 | 38 | 0 | 4 | 55 | 207 | 307 | 779 | 116 | 12 | 336 | 4 | 4 | 38 | 1 |
Best forecast wave conditions in Newcastle | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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 Triangles 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 Triangles Surf forecast
The above surf forecast table for Triangles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Triangles can be found by selecting the local surf guide option on the grey menu. Our Triangles 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 (Triangles) 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 Triangles 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.
Triangles is 12 km (7 miles) from the city of Catherine Hill Bay. If you plan a holiday in Newcastle, look for hotels and other accommodation in Catherine Hill Bay. Catherine Hill Bay has rooms for a wide range of budgets as well as car hire and transport links.
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