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Backdoors Surf Forecast
/ SA – Nullarbor (9 breaks) / South Australia (91 breaks) /
Surf Forecasts:
Backdoors surfForecast / SA – Nullarbor / Australia
16 Day Weather and Surf, issued 8 pm Monday 25 May 2026 ACSTForecast update in hr min s Forecast update imminent
Backdoors surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backdoors sea temperature is
18.1° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Backdoors this week:
The surf forecast for Backdoors over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (May 28) at 6AM. The primary swell is predicted to be 0.4m and 18s period with a secondary swell of 0.6m and 9s. Another secondary swell of 0.4m and 12s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Backdoors in the next 16 days are 1.9m 14s and forecast to arrive on Tuesday (May 26) at 9PM. Winds are predicted to be cross-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 Monday (Jun 01) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Thu 28th May) | 1.5ft (0.4m) 18s |
| Best Surf | 12AM (Sun 31st May) | 3ft (0.9m) 12s |
| Most Powerful | 9PM (Tue 26th May) | 6ft (1.9m) 14s |
Table - best surf conditions forecast for Backdoors over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Tue morning. Very mild (max 17°C on Tue morning, min 15°C on Tue night). Winds decreasing (fresh winds from the SSW on Mon night, calm by Wed night). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 15°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the NNE by Sun afternoon). | ||||||||||||||||||||
Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Mon 1 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SSW 9 | SSW 9 | SW 9 | SSW 9 | SSW 10 | SW 13 | SW 18 | SW 17 | SW 16 | SW 15 | SW 15 | WSW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 10 | SW 13 | W 7 | |
578 | 623 | 539 | 413 | 235 | 138 | 84 | 102 | 130 | 116 | 104 | 273 | 87 | 287 | 319 | 224 | 233 | 162 | 100 | 142 | 491 | |
Wind (km/h) | |||||||||||||||||||||
on | on | on | cross-on | cross-on | on | on | cross-off | on | cross-off | cross-off | cross-on | cross-on | cross | cross-on | glassy | off | off | cross-off | cross-off | cross | |
High Tide | 9:50PM0.62m | 11:15AM0.84m | 10:06PM0.67m | 11:00AM0.98m | 10:31PM0.71m | 11:09AM1.11m | 10:58PM0.75m | 11:26AM1.21m | 11:23PM0.78m | 11:47AM1.30m | 11:46PM0.79m | 12:10PM1.35m | 00:08AM0.80m | 12:34PM1.37m | |||||||
Low Tide | 4:10AM0.42m | 5:30PM0.52m | 4:04AM0.33m | 5:26PM0.42m | 4:20AM0.25m | 5:41PM0.32m | 4:40AM0.18m | 6:01PM0.24m | 5:03AM0.13m | 6:23PM0.19m | 5:25AM0.09m | 6:46PM0.17m | 5:48AM0.06m | ||||||||
 |  | |  |  | | |  | |  | | | | | | |  | | | | | |
 | — | 7:26 | — | — | 7:26 | — | — | 7:26 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — | — | 7:28 | — |
 | — | — | 5:43 | — | — | 5:43 | — | — | 5:42 | — | — | 5:42 | — | — | 5:42 | — | — | 5:40 | — | — | 5:40 |
4 | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | |
Temp °C | 16 | 17 | 16 | 17 | 17 | 17 | 16 | 17 | 17 | 16 | 20 | 18 | 17 | 18 | 17 | 17 | 18 | 22 | 22 | 18 | 18 |
11 | 12 | 10 | 11 | 14 | 14 | 14 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 12 | 15 | 12 | 15 | 18 | 5 | 5 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | SW 14 | SSW 10 | SSW 9 | SSW 9 | S 8 | S 8 | SW 15 | SW 15 | S 8 | SW 13 | SW 12 | S 7 | SW 12 | SW 11 | SW 11 | SW 10 | SW 13 | SSW 13 |
 kJ | — | — | — | 203 | 235 | 110 | 61 | 36 | 33 | 116 | 104 | 5 | 87 | 287 | 1 | 224 | 233 | 162 | 100 | 142 | 249 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 13 | SW 13 | SW 12 | SW 12 | SW 16 | SSW 8 | S 7 | SSE 8 | S 8 | S 8 | S 7 | SW 16 | SW 18 | SW 14 | SW 13 | SW 9 | SW 20 |
| kJ | — | — | — | — | 144 | 138 | 75 | 50 | 130 | 19 | 4 | 12 | 1 | 1 | 1 | 10 | 12 | 33 | 62 | 42 | 15 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SW 21 | SW 20 | SW 18 | SW 17 | SW 12 | SW 12 | — | — | — | S 7 | — | — | SW 18 | N 3 | SW 16 | — | — |
| kJ | — | — | — | — | 18 | 16 | 84 | 102 | 35 | 21 | — | — | — | 1 | — | — | 13 | 1 | 11 | — | — |
Wind waves Height (m) Direction Period (s) | SSW 9 | SSW 9 | SW 9 | SSW 9 | S 10 | SSW 13 | SSW 9 | — | SSW 16 | — | WNW 3 | WSW 14 | SW 6 | — | SW 12 | — | N 3 | — | NW 4 | WNW 5 | W 7 |
| kJ | 578 | 623 | 539 | 413 | 30 | 34 | 8 | — | 26 | — | 7 | 273 | 34 | — | 319 | — | 1 | — | 10 | 54 | 491 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 500 | 547 | 489 | 243 | 361 | 491 | 132 | 0 | 491 | 0 | 500 | 510 | 649 | 1035 | 1035 | 0 | 0 | 177 | 652 | 1227 | 1228 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||||
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 Backdoors 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 Backdoors Surf forecast
The above surf forecast table for Backdoors provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Backdoors can be found by selecting the local surf guide option on the grey menu. Our Backdoors 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 (Backdoors) 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 Backdoors 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 Nullarbor? If you are looking for accommodation near Backdoors, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 64 km (40 miles) away.
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