Surf Forecasts:
Seaford Reef surf forecast from 17 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 6PM (local time) - 3ft (0.9m), 6s period, W swell with 64 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 0.9m 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 0.5m 4s period and expected on Tuesday (Aug 18) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6PM (Wed 19th Aug) | 3ft (0.9m) 6s |
Table - best surf conditions forecast for Seaford Reef over the next 16 days.
The Lowdown
Right, grab a seat. I’m Rusty, and I’ve been staring at the charts for your bit of coast. Let’s be straight with each other: the next 16 days are a tough watch.
Seaford Reef is a sheltered beginner reef that’s inconsistent at the best of times, and right now it’s stubbornly flat. We’re looking at a proper dry spell. From Monday the 17th of August right through to the 30th of August, there’s nothing worth paddling out for. The swell is barely dribbling in – we’re talking 0.3ft to 1ft for the most part. The wind is mostly cross-on or onshore, a few light breezes, but there’s just no energy. The combined swell energy sits at a pathetic 7 on that first Monday, and it rarely climbs above a whisper. A couple of mornings turn glassy or clean, like Sunday the 30th of August with a glassy calm, but it’s on a 0.7ft swell. That’s a lake, not a surf. Even on the 27th of August, when a 8ft WSW swell throws down a big combined energy of 637, the wind is howling onshore at 16 mph to 19 mph, making it a messy, blown-out mess and only for experts if you’re silly enough. The water temp is around 58°, which is pretty normal for the time of year.
Let’s be honest: this is a blank run. The guidance shows the reef is inconsistent, and that’s the story here. It’s a rare spot that only wakes up with the right alignment, and we just aren’t getting it. Looks more interesting for a kite surfer than a paddle surfer on that 27th blow, if I’m being truthful. There’s a flicker of hope on the 1st of September – a 3ft N swell with 19 mph winds, but it’s cross and lumpy. Not calling that a recommendation. We wait for the next cycle.
Stay thirsty, but not for this.
Rusty
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Very mild (max 17°C on Tue afternoon, min 12°C on Wed night). Winds decreasing (fresh winds from the N on Tue night, light winds from the W by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Fri night, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 13 | N 4 | N 4 | NW 5 | WNW 5 | SW 9 | SW 9 | WSW 9 | W 5 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SW 10 | N 3 | NNW 3 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 4 | 25 | 54 | 53 | 28 | 23 | 16 | 7 | 8 | 8 | 9 | 8 | 8 | 7 | 7 | 7 | 4 | 3 | 3 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | on | on | off | cross | glassy | 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 | 12:45PM0.52m | 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 | ||||||||
 |  |  | | |  | | | | | | | | | | |  |  | | |  | |
 | 6:54 | — | — | 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 | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 15 | 14 | 15 | 13 | 14 | 15 | 14 | 13 | 13 | 14 | 13 | 14 | 13 | 13 | 14 | 14 | 14 | 13 | 13 |
Feels °C | 12 | 14 | 10 | 9 | 10 | 10 | 11 | 12 | 13 | 10 | 10 | 11 | 11 | 13 | 12 | 11 | 13 | 12 | 12 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | SW 10 | — | S 14 | SW 9 | SW 9 | WSW 9 | W 5 | W 5 | WSW 9 | W 5 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | W 8 | W 8 | SW 9 | W 9 |
| kJ | 2 | 2 | 4 | — | 4 | 21 | 23 | 16 | 7 | 5 | 8 | 2 | 7 | 8 | 7 | 7 | 7 | 1 | 1 | 3 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 13 | S 13 | — | — | — | — | — | W 5 | WSW 8 | WSW 9 | SW 13 | WSW 9 | W 4 | W 5 | S 14 | S 14 | — | SW 10 | SW 9 | — | — |
| kJ | 7 | 3 | — | — | — | — | — | 4 | 6 | 8 | 7 | 8 | 2 | 2 | 4 | 4 | — | 4 | 3 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 10 | SW 14 | — | SW 15 | SW 14 | S 14 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 4 | 7 | — | 9 | 8 | 4 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | N 4 | N 4 | NW 5 | WNW 5 | W 5 | W 5 | NNW 3 | — | — | WSW 5 | — | — | — | — | — | — | — | N 3 | NNW 3 | N 2 |
| kJ | 6 | 4 | 25 | 54 | 53 | 28 | 17 | 1 | — | — | 5 | — | — | — | — | — | — | — | 3 | 3 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 44 | 44 | 43 | 43 | 44 | 617 | 43 | 44 | 610 | 43 | 43 | 139 | 43 | 43 | 128 | 43 | 44 | 52 | 43 | 43 | 135 |
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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