Surf Forecasts:
Seaford Reef surf forecast from 18 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 6PM (local time) - 3.5ft (1.0m), 6s period, W swell with 69 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 6s and forecast to arrive on Wednesday (Aug 19) 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 0.3m 4s period and expected on Wednesday (Aug 19) at 6PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6PM (Wed 19th Aug) | 3.5ft (1.0m) 6s |
Table - best surf conditions forecast for Seaford Reef over the next 16 days.
The Lowdown
Right, Rusty here. I’ve stared at the charts for the next couple of weeks, and I’ve got to be straight with you—Seaford Reef is looking pretty flat and lifeless for the foreseeable future. The finder didn’t turn up any good surf windows, so we’re in for a long, quiet run.
The first recommendation doesn’t kick in until the 18th of August, which is a Tuesday afternoon. Even then, it’s a tiny 1 ft swell from the north with a shocker period of 4 seconds. The wind is a light cross-shore from the NNW at 6 mph, but the wave energy is weak (6), and the file is calling it "poor surf conditions." It’s a no-go.
We roll into Wednesday the 19th, and it’s more of the same. Morning brings a lumpy 4 ft from the NW with a fresh cross-onshore wind at 19 mph, and the afternoon is onshore and rainy. The swell energy nudges up to 54 and 61 respectively, but the quality is absolutely grim. This pattern holds through the 20th and 21st—tiny, short-period leftovers with cross-onshore chop. The morning of the 22nd, Saturday, offers a glassy 1.0 ft from the WSW, but it’s still too small to paddle for.
The rest of the first week and into the second week is a total dud. We see a few clean moments—like the 23rd morning with a cross-off breeze and the 25th morning with an offshore—but the swell never tops 2 ft and the periods are mostly 4 to 8 seconds. The combined energy stays in the single digits or low 20s. It’s a desert.
Then, on the 27th of August (Thursday), we get a spike. The morning shows a 7 ft swell from the west with a period of 7 seconds. The combined energy hits 396, which is moderate-strong. But the wind is a fresh cross-onshore from the SW at 19 mph, making it lumpy and messy. The afternoon is similar at 7 ft. This is too big for beginners, and with the wind, it’s only interesting for experts, and even then, it’s a battle. The set-up is a reef, but with that wind direction, it’s blown out. Honestly, it looks more like a kite session than a surf.
The 28th and 29th offer cleaner conditions with offshore winds, but the swell drops back to under 3 ft. The 29th Saturday afternoon has a gentle 1.0 ft from the WSW with an offshore breeze, but it’s just a dribble.
By the 31st of August and into September, it’s virtually flat. The 1st of September has a 0.3 ft swell from the west with a 10-second period, but the energy is only 2. It’s a glassy pond.
There is no standout session here. The best on offer is the 27th August, but only if you’re an expert paddling into messy, lumpy 7 ft+ waves. Even then, the wind is rubbish. For the rest of us, it’s a blank fortnight. The reef is inconsistent and rarely breaks, so this kind of run is normal for the area. Keep an eye on the charts—things can change, but for now, leave the boards at home.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Very mild (max 17°C on Tue afternoon, min 12°C on Tue night). Winds decreasing (fresh winds from the N on Tue night, light winds from the NW by Thu night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 14°C on Fri afternoon, min 10°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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) | N 4 | N 4 | NW 5 | WNW 5 | WSW 9 | WSW 9 | WSW 9 | W 7 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | N 4 | NW 4 | WSW 5 |
Wave Graph | ||||||||||||||||||||
4 | 25 | 54 | 61 | 27 | 17 | 16 | 40 | 24 | 13 | 15 | 15 | 15 | 8 | 7 | 7 | 7 | 20 | 7 | 8 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | on | off | cross-off | cross-on | cross-off | cross | cross-on | cross-off |
High Tide | 6:33PM1.80m | 7:02AM2.08m | 6:51PM1.66m | 7:31AM2.02m | 7:07PM1.49m | 8:04AM1.87m | 7:12PM1.28m | 8:46AM1.67m | 5:42PM1.10m | 10:25AM1.45m | 6:54AM1.14m | 2:46PM1.58m | ||||||||
Low Tide | 00:35AM0.35m | 1:13PM0.60m | 00:53AM0.35m | 1:45PM0.73m | 1:12AM0.42m | 2:24PM0.89m | 1:23AM0.54m | 3:41PM1.08m | 00:57AM0.68m | 10:53PM0.67m | 7:22AM1.14m | 10:20PM0.49m | ||||||||
— | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | |
5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | |
mm | — | 5 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 15 | 14 | 14 | 14 | 13 | 14 | 13 | 14 | 14 | 13 | 12 | 13 | 12 | 13 | 13 | 13 | 13 | 14 | 12 |
Feels °C | 14 | 11 | 9 | 10 | 11 | 9 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 10 | 11 | 11 | 11 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | W 10 | SW 10 | — | S 14 | WSW 9 | WSW 9 | WSW 9 | W 7 | WSW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | WSW 8 | WSW 9 | SW 9 | W 8 | NNW 3 |
2 | 4 | — | 4 | 27 | 17 | 16 | 40 | 24 | 13 | 15 | 15 | 15 | 7 | 7 | 7 | 7 | 3 | 1 | 1 | |
Swell 2 Height (m) Direction Period (s) | S 13 | — | — | — | — | — | N 3 | — | SW 14 | SW 10 | SW 10 | SW 10 | SW 14 | SW 14 | — | SW 11 | — | — | W 9 | W 9 |
3 | — | — | — | — | — | 1 | — | 8 | 4 | 4 | 4 | 8 | 8 | — | 5 | — | — | 2 | 2 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 13 | SW 15 | SW 15 | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | 7 | 9 | 8 | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | N 4 | N 4 | NW 5 | WNW 5 | W 5 | WNW 4 | W 4 | — | — | — | — | — | — | — | — | NNW 3 | — | N 4 | NW 4 | WSW 5 |
4 | 25 | 54 | 61 | 27 | 11 | 9 | — | — | — | — | — | — | — | — | 2 | — | 20 | 7 | 8 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 43 | 43 | 386 | 447 | 43 | 44 | 44 | 43 | 44 | 44 | 43 | 44 | 52 | 43 | 43 | 43 | 43 | 43 | 43 | 128 |
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.











