Surf Forecasts:
The Island surf forecast from 30 Aug 2026:
- Best quality surf: Monday 31 Aug, 12AM (local time) - 5ft (1.5m), 17s period, SW swell with offshore winds.
- Most powerful swell: Saturday 5 Sep, 6PM (local time) - 7.5ft (2.3m), 16s period, SW swell with 2,825 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 12AM (local time) - 5ft (1.5m), 17s period with SW swell.
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 Monday (Aug 31) at 12AM. The primary swell is predicted to be 1.5m and 17s period with a secondary swell of 0.6m and 21s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at The Island in the next 16 days are 2.3m 16s and forecast to arrive on Saturday (Sep 05) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Friday (Sep 04) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 31st Aug) | 5ft (1.5m) 17s |
| Best Surf | 12AM (Mon 31st Aug) | 5ft (1.5m) 17s |
| Most Powerful | 6PM (Sat 5th Sep) | 7.5ft (2.3m) 16s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for The Island. It’s a reef break, exposed to the SW swell, and it’s consistent. The water temp is sitting at 60°, which is about average for this time of year, so no worries there.
The next week and a half is a bit of a mixed bag. We’ve got some swell on the way, but the wind is going to be a moody beast. Let’s start with the first real window of opportunity.
Sunday the 30th is your best bet early on. A clean 3ft SW groundswell (12-second period) is rolling in, with a gentle offshore wind from the ENE. That’s a magic combo for a reef. The combined swell energy is moderate at 491. It’s not huge, but it’ll be clean and fun. The afternoon sees the swell bump up to 4ft, but the wind swings cross-shore, so the morning is the pick of the day.
Monday the 31st pushes the swell up to 6ft in the morning, but the wind is a cross-offshore breeze at 16 mph. The energy is pumping hard at 2004, but the period is a very long 19 seconds. That’s proper groundswell, but it can be a bit of a straight roller at a beach break. For a reef like The Island, it should still offer up some good lines. The morning is the cleaner session.
From Tuesday the 1st through to Sunday the 6th, things get messy. The wind goes onshore or cross-onshore for most of it, with gusts up to 37 mph on the 6th. The swell gets big, hitting 8ft by the 5th, and the energy is strong (2527), but the wind is just ruining the surface. The Island will be a lumpy, choppy mess. The setup looks more interesting for kite surfing than paddle surfing during that stretch.
Now, here’s the standout. Circle Wednesday the 9th of September on your calendar. The morning brings a clean 8ft SW swell, with a 15-second period, and a light offshore wind from the ENE. The combined energy is a strong 3084. This is big, powerful, and clean. It's for experienced surfers only – over 8ft is expert territory. The crowd factor is "sometimes," so you might have a few others out there, but with that quality, it’s worth the paddle.
After that, the week of the 10th to the 14th offers smaller, cleaner windows. The 10th and 11th have decent mornings with 5ft to 5ft SW swell and light offshore winds. The 11th is particularly nice with a 16-second period and very light wind. The energy is moderate to strong (1299). The 12th is okay, but the wind gets a bit stronger. The 14th is a write-off with strong cross-shore winds.
So, get out there on Sunday the 30th for the clean small stuff, but the real session to wait for is the morning of the 9th of September. That’s the one.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon afternoon, min 13°C on Tue night). Winds increasing (calm on Sun morning, fresh winds from the N by Mon night). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Fri afternoon. Very mild (max 18°C on Fri morning, min 13°C on Wed morning). Winds increasing (calm on Thu afternoon, near gales from the W by Fri night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | SW 19 | SW 19 | SW 17 | SW 19 | SW 18 | SW 16 | SW 15 | WSW 17 | SW 16 | SW 16 | SW 14 | SW 14 | SW 14 | SW 13 | SW 16 | SW 15 | WSW 15 | SW 15 | SW 14 | SW 15 | SW 16 |
Wave Graph | |||||||||||||||||||||
248 | 1123 | 1267 | 1975 | 1880 | 1096 | 674 | 1250 | 1109 | 1164 | 1163 | 2509 | 1067 | 1006 | 2120 | 1568 | 1939 | 2491 | 1811 | 2326 | 2344 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | off | cross-off | cross | cross-off | cross | on | cross-on | on | on | on | cross | cross-on | cross-off | cross-off | cross-on | on | cross-on | cross-on | cross-off |
High Tide | 3:31PM0.00m | 5:12PM0.00m | 7:05PM0.00m | 9:06PM0.00m | 11:01PM0.00m | 00:45AM0.00m | 2:23AM0.00m | ||||||||||||||
Low Tide | 4:20AM-0.00m | 6:07AM-0.00m | 8:05AM-0.00m | 10:05AM-0.00m | 11:54AM-0.00m | 1:33PM-0.00m | |||||||||||||||
6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | |
— | 6:14 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | — | — | — | — |
Temp °C | 19 | 19 | 19 | 19 | 22 | 22 | 20 | 18 | 14 | 14 | 14 | 15 | 15 | 16 | 17 | 18 | 17 | 15 | 13 | 13 | 12 |
Feels °C | 18 | 16 | 14 | 14 | 19 | 16 | 14 | 13 | 10 | 9 | 9 | 10 | 11 | 14 | 13 | 9 | 12 | 6 | 6 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 19 | SW 17 | SW 19 | SW 18 | SW 16 | SW 15 | SW 15 | S 17 | SW 16 | SW 14 | SW 14 | SW 14 | SW 13 | SW 16 | SW 15 | SW 15 | S 15 | SW 17 | SW 15 | SW 16 |
248 | 1123 | 1267 | 1975 | 1880 | 1096 | 674 | 415 | 6 | 1164 | 1163 | 2509 | 1067 | 1006 | 2120 | 1568 | 1326 | 4 | 293 | 2326 | 2344 | |
Swell 2 Height (m) Direction Period (s) | SW 19 | S 19 | SW 21 | S 19 | S 18 | S 16 | S 16 | S 17 | — | S 16 | S 16 | — | S 14 | S 14 | SSE 17 | SSE 16 | S 15 | — | SW 21 | SW 20 | S 16 |
236 | 7 | 282 | 29 | 24 | 5 | 5 | 6 | — | 5 | 5 | — | 4 | 4 | 29 | 25 | 18 | — | 117 | 186 | 5 | |
Swell 3 Height (m) Direction Period (s) | S 20 | — | S 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 14 | — |
7 | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 15 | — | |
Wind waves Height (m) Direction Period (s) | SE 4 | — | SE 4 | NNE 4 | — | N 4 | NNW 5 | WSW 17 | SW 16 | — | — | SW 14 | — | — | — | NNE 4 | WSW 15 | SW 15 | SW 14 | — | — |
3 | — | 7 | 7 | — | 6 | 50 | 1250 | 1109 | — | — | 1500 | — | — | — | 43 | 1939 | 2491 | 1811 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 13 | 0 | 154 | 13 | 24 | 1497 | 1073 | 495 | 891 | 891 | 1075 | 154 | 154 | 148 | 412 | 1032 | 1138 | 1150 | 1026 | 0 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











