Surf Forecasts:
Castaways Beach surf forecast from 15 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 10PM (local time) - 3ft (0.9m), 6s period, ENE swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 1AM (local time) - 10ft (3.0m), 8s period, SE swell with 1,318 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 10PM (local time) - 3ft (0.9m), 6s period with ENE swell.
Best Forecast Surf Conditions for Castaways Beach this week:
The surf forecast for Castaways Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 10PM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.1m and 12s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Castaways Beach in the next 16 days are 3.0m 8s and forecast to arrive on Thursday (Sep 17) 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 0.9m 5s period and expected on Monday (Sep 21) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 15th Sep) | 3ft (0.9m) 6s |
| Best Surf | 10PM (Tue 15th Sep) | 3ft (0.9m) 6s |
| Most Powerful | 1AM (Thu 17th Sep) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Castaways Beach over the next 16 days.
Short Range ForecastMostly dry. Warm (max 21°C on Tue morning, min 14°C on Wed night). Winds increasing (calm on Tue morning, fresh winds from the SSE by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat morning, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | E 6 | E 6 | ENE 6 | E 6 | SE 7 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | ESE 7 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | NE 4 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 48 | 48 | 57 | 39 | 490 | 1318 | 687 | 494 | 317 | 189 | 146 | 110 | 72 | 46 | 21 | 19 | 8 | 8 | 8 | 16 | 2 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | glassy | cross-off | cross | cross-off | glassy | cross-on | off | cross | cross | glassy |
High Tide | 10:34AM1.63m | 10:25PM1.38m | 11:17AM1.56m | 10:56PM1.25m | 12:07PM1.49m | 11:33PM1.13m | 1:12PM1.44m | 00:32AM1.03m | 2:33PM1.44m | 2:30AM0.99m | 3:44PM1.49m | 4:08AM1.05m | 4:37PM1.56m | ||||||||
Low Tide | 4:42PM0.56m | 4:36AM0.38m | 5:29PM0.71m | 5:09AM0.48m | 6:31PM0.83m | 5:48AM0.58m | 8:11PM0.88m | 6:44AM0.67m | 9:55PM0.85m | 8:10AM0.72m | 10:53PM0.76m | 9:36AM0.71m | 11:28PM0.67m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 5:46 | — | — | 5:45 | — | — | 5:43 | — | — | 5:41 | — | — | 5:41 | — | — | 5:39 | — | — | 5:39 | — | — |
 | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:42 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 17 | 20 | 19 | 18 | 17 | 19 | 19 | 19 | 19 | 17 | 22 | 20 | 18 | 21 | 20 | 18 | 24 | 22 | 19 |
Feels °C | 19 | 17 | 15 | 18 | 13 | 12 | 12 | 14 | 14 | 16 | 17 | 17 | 19 | 17 | 17 | 20 | 19 | 18 | 21 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | E 6 | E 6 | ENE 6 | E 6 | NE 11 | NE 11 | E 13 | E 11 | E 16 | E 14 | NE 14 | ESE 8 | ESE 8 | SE 8 | SE 8 | ENE 5 | SE 7 | NNE 4 | NNE 4 | SE 7 | NNE 4 |
| kJ | 48 | 48 | 57 | 39 | 5 | 5 | 3 | 2 | 5 | 4 | 8 | 110 | 72 | 46 | 21 | 11 | 8 | 11 | 3 | 2 | 13 |
Swell 2 Height (m) Direction Period (s) | NE 12 | NE 12 | NE 12 | NE 11 | NE 8 | — | NE 11 | E 16 | E 11 | E 10 | NE 12 | E 12 | E 8 | ENE 7 | NE 4 | SE 7 | ENE 7 | SE 7 | SE 7 | E 7 | SE 7 |
| kJ | 6 | 5 | 5 | 5 | 3 | — | 5 | 5 | 2 | 2 | 5 | 3 | 5 | 18 | 5 | 19 | 5 | 8 | 8 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | NE 12 | E 15 | E 15 | — | — | — | — | E 13 | E 12 | E 12 | E 14 | — | NE 13 | E 13 | E 6 | NE 12 | NE 11 | E 7 | ENE 6 | NE 10 | E 8 |
| kJ | 5 | 4 | 4 | — | — | — | — | 3 | 3 | 3 | 4 | — | 7 | 3 | 10 | 5 | 5 | 1 | 3 | 4 | 1 |
Wind waves Height (m) Direction Period (s) | — | NE 3 | NNE 4 | — | SE 7 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | ESE 7 | — | — | NE 3 | — | N 3 | NE 3 | WNW 3 | NNW 3 | NE 4 | NW 3 |
| kJ | — | 1 | 11 | — | 490 | 1318 | 687 | 494 | 317 | 189 | 146 | — | — | 2 | — | 2 | 6 | 1 | 4 | 16 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1812 | 0 | 6 | 1489 | 331 | 6 | 334 | 6 | 6 | 6 | 0 | 0 | 202 | 55 | 55 | 883 | 23 | 238 | 453 | 256 |
Best forecast wave conditions in Sunshine Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castaways Beach 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 Castaways Beach Surf forecast
The above surf forecast table for Castaways Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castaways Beach can be found by selecting the local surf guide option on the grey menu. Our Castaways Beach 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 (Castaways Beach) 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 Castaways Beach 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.
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