Surf Forecasts:
Seaford Reef surf forecast from 20 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 12PM (local time) - 3.5ft (1.0m), 5s period, N swell with 42 kJ wave energy.
Best Forecast Surf Conditions for Seaford Reef this week:
The most powerful waves expected at Seaford Reef in the next 16 days are 1.0m 5s and forecast to arrive on Thursday (Aug 27) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Aug 24) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12PM (Thu 27th Aug) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for Seaford Reef over the next 16 days.
The Lowdown
G’day, Rusty here.
Alright, let’s be honest about this next couple of weeks for Seaford Reef. It’s a dud. We’ve got a long stretch of nothing on the horizon. For the first nine or so days, from the 20th of August, the surf is practically non-existent. We’re talking ankle-biters. The 20th sees a meager 2ft out of the WNW, but it’s cross-onshore and the energy is weak. The water temp is 57°F, which is standard for the season.
From the 21st through the 28th, it's flat out hopeless. Swells are under 1ft. There’s no power, and the winds are all over the place. We see some longer-period energy on the 25th, but it’s all cross-shore and messy.
Then the 29th of August rolls around—a Saturday—and we finally get a pulse. The swell builds to 6ft out of the WNW, and we get a solid offshore breeze. The energy jumps to moderate, but it’s still a short-period windswell. The wave will be there, but it’s going to be lumpy and unorganized. Still, it’s the best we’ve got.
Sunday the 30th is slightly better conditions-wise—near glassy on the afternoon with a 4ft west swell—but it’s still weak.
After that, we get a few days in the 4ft range at the end of the month, but the wind is cross-shore and the energy is low. The 1st of September has a glassy afternoon, but again, weak and small.
The rest of the first week of September is more of the same: poor quality, short-period slop. The only real surfable window is that 29th and 30th, and even that is just okay. It’s not a classic; it’s a grind. I wouldn’t be planning any trips around it.
It’s a quiet spell, for sure. Not much for anyone, let alone a beginner. The reef is sheltered, and it just can’t pick up these poor-quality swells properly. You might see some kites out there if the wind cooperates, but for a surfboard, it's a blank run.
We’ve had quieter periods, and we’ll get some better ones. Forecasts change.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Thu afternoon, min 11°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Mon night. Very mild (max 15°C on Mon morning, min 10°C on Tue night). Winds increasing (calm on Sun afternoon, fresh winds from the S by Tue morning). | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | WNW 4 | W 5 | WSW 9 | W 5 | W 4 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | W 8 | SW 9 | SW 9 | SW 8 | SW 4 | SW 4 | SW 14 | WSW 8 | WSW 8 | SW 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 17 | 18 | 16 | 8 | 9 | 8 | 7 | 13 | 7 | 7 | 5 | 3 | 3 | 3 | 10 | 9 | 8 | 6 | 6 | 3 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross-on | on | on | off | cross | cross-on | cross-off | cross | cross-on | cross | cross | cross | cross | cross | on | cross-off |
High Tide | 7:07PM1.49m | 8:04AM1.87m | 7:12PM1.28m | 8:46AM1.67m | 5:42PM1.10m | 10:25AM1.45m | 6:54AM1.14m | 2:46PM1.58m | 4:49AM1.25m | 3:31PM1.78m | 4:46AM1.42m | 4:03PM1.96m | ||||||||
Low Tide | 1:12AM0.42m | 2:24PM0.89m | 1:23AM0.54m | 3:41PM1.08m | 00:57AM0.68m | 10:53PM0.67m | 7:22AM1.14m | 10:20PM0.49m | 9:14AM0.95m | 10:29PM0.34m | 9:51AM0.77m | 10:46PM0.25m | ||||||||
 |  | | | |  | | | | |  |  | |  |  | | | | | | |
 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — |
 | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 13 | 14 | 13 | 13 | 12 | 14 | 14 | 14 | 15 | 14 | 13 | 14 | 14 | 11 | 11 | 11 | 10 |
Feels °C | 10 | 10 | 9 | 10 | 12 | 11 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 7 | 8 | 7 | 8 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 5 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 8 | SW 9 | WNW 3 | W 8 | SW 15 | WSW 4 | WSW 8 | WSW 8 | W 4 |
| kJ | 16 | 13 | 16 | 8 | 8 | 7 | 4 | 13 | 7 | 7 | 5 | 1 | 3 | 1 | 1 | 9 | 3 | 6 | 6 | 2 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 14 | SW 13 | SW 15 | SW 14 | WSW 8 | S 14 | — | SW 11 | SW 10 | SW 9 | — | SW 8 | SW 16 | — | SW 9 | S 13 | W 11 | SW 9 |
| kJ | — | — | 7 | 7 | 9 | 8 | 7 | 4 | — | 5 | 4 | 3 | — | 3 | 10 | — | 3 | 4 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 14 | — | — | — | — | — | — | — | — | — | SW 14 | W 11 | S 13 | W 7 |
| kJ | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | 8 | 3 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | WNW 4 | W 5 | WSW 4 | W 5 | W 4 | WSW 4 | — | — | — | — | — | N 2 | NNW 3 | — | SW 4 | SW 4 | — | — | N 3 | — |
| kJ | 17 | 18 | 5 | 8 | 7 | 5 | — | — | — | — | — | 1 | 1 | — | 9 | 8 | — | — | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 447 | 43 | 43 | 43 | 43 | 43 | 135 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 128 | 139 | 128 | 128 | 44 | 43 |
Best forecast wave conditions in Adelaide | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
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Information about the Seaford Reef Surf forecast
The above surf forecast table for Seaford Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Seaford Reef can be found by selecting the local surf guide option on the grey menu. Our Seaford Reef 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 (Seaford Reef) 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 Seaford Reef 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.
Seaford Reef is 7 km (4 miles) from the very large city of Morphett Vale. If you plan a holiday in Adelaide, look for hotels and other accommodation in Morphett Vale. Morphett Vale has rooms for a wide range of budgets as well as cheap car hire and transport links.
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