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The Island Surf Forecast
/ SA – Eyre Peninsula (19 breaks) / South Australia (91 breaks) /
Surf Forecasts:
The Island surfForecast / SA – Eyre Peninsula / Australia
16 Day Weather and Surf, issued 8 am Thursday 21 May 2026 ACSTForecast update in hr min s Forecast update imminent
The Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's The Island sea temperature is
17.8° C
(Which is normal for this time of year)Best Forecast Surf Conditions for The Island this week:
The surf forecast for The Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 21) at 6PM. The primary swell is predicted to be 1.1m and 14s period with a secondary swell of 0.1m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Island in the next 16 days are 1.9m 15s and forecast to arrive on Monday (May 25) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (May 22) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 21st May) | 3.5ft (1.1m) 14s |
| Best Surf | 6PM (Thu 21st May) | 3.5ft (1.1m) 14s |
| Most Powerful | 6PM (Mon 25th May) | 6ft (1.9m) 15s |
Table - best surf conditions forecast for The Island over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 21mm), heaviest during Sat afternoon. Very mild (max 19°C on Thu afternoon, min 13°C on Sat night). Winds increasing (light winds from the NW on Thu afternoon, fresh winds from the N by Sat morning). | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Sun night. Very mild (max 16°C on Sun night, min 12°C on Sun morning). Winds decreasing (near gales from the SW on Sun night, light winds from the S by Tue night). | ||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SW 14 | SW 14 | SW 13 | SW 14 | SW 15 | SW 14 | SW 13 | SW 13 | WSW 13 | SW 12 | SW 11 | SW 11 | SSW 10 | SSW 10 | SSW 14 | SSW 13 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | |
667 | 514 | 199 | 336 | 606 | 590 | 386 | 352 | 848 | 678 | 999 | 1291 | 820 | 635 | 1247 | 1384 | 341 | 341 | 253 | 202 | 184 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | |
High Tide | 12:15PM0.00m | 2:12PM0.00m | 4:09PM0.00m | 5:58PM0.00m | 7:37PM0.00m | 9:16PM0.00m | 11:06PM0.00m | ||||||||||||||
Low Tide | 1:12AM-0.00m | 3:11AM-0.00m | 5:05AM-0.00m | 6:48AM-0.00m | 8:26AM-0.00m | 10:08AM-0.00m | |||||||||||||||
 |  |  |  | |  | |  |  |  |  | | | | | | | | | | | |
 | 7:20 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — |
 | — | 5:38 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:36 | — | — | 5:36 | — |
— | — | — | — | — | — | — | 11 | 10 | 1 | 2 | 6 | 3 | 2 | 1 | 2 | — | 1 | — | — | — | |
Temp °C | 17 | 19 | 19 | 17 | 19 | 17 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 |
14 | 17 | 16 | 11 | 13 | 10 | 8 | 11 | 7 | 9 | 6 | 8 | 9 | 9 | 11 | 12 | 11 | 12 | 12 | 13 | 13 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 14 | SW 15 | SW 14 | SW 13 | SW 13 | WSW 13 | — | S 12 | — | — | — | — | — | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 |
 kJ | 667 | 514 | 199 | 336 | 606 | 590 | 386 | 352 | 848 | — | 3 | — | — | — | — | — | 341 | 341 | 253 | 202 | 184 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 14 | SW 16 | S 16 | S 15 | S 15 | S 14 | S 16 | S 14 | — | — | — | — | — | — | — | — | W 24 | SSW 7 | SSW 6 | SW 19 |
| kJ | 4 | 4 | 124 | 5 | 5 | 4 | 4 | 5 | 4 | — | — | — | — | — | — | — | — | 11 | 46 | 23 | 177 |
Swell 3 Height (m) Direction Period (s) | — | — | S 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 16 | SW 22 | SW 21 | S 7 |
| kJ | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 18 | 69 | 23 |
Wind waves Height (m) Direction Period (s) | — | — | NE 3 | N 4 | N 4 | N 4 | NW 5 | WNW 4 | WSW 13 | SW 12 | SW 11 | SW 11 | SSW 10 | SSW 10 | SSW 14 | SSW 13 | SSW 8 | SSW 8 | — | — | — |
| kJ | — | — | 2 | 21 | 21 | 35 | 49 | 10 | 546 | 678 | 999 | 1291 | 820 | 635 | 1247 | 1384 | 250 | 127 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 24 | 29 | 133 | 249 | 249 | 249 | 249 | 250 | 488 | 249 | 356 | 335 | 498 | 337 | 398 | 498 | 335 | 337 | 335 | 154 | 89 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 The Island 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 The Island Surf forecast
The above surf forecast table for The Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Island can be found by selecting the local surf guide option on the grey menu. Our The Island 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 (The Island) 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 The Island 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.
Are you planning a holiday in Eyre Peninsula? If you are looking for accommodation near The Island, camping, hotels and holiday cottages in Eyre Peninsula, consider staying in Thevenard which is 111 km (69 miles) away.
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