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Cactus Surf Forecast
/ SA – Nullarbor (9 breaks) / South Australia (91 breaks) /
Surf Forecasts:
Cactus surfForecast / SA – Nullarbor / Australia
16 Day Weather and Surf, issued 2 pm Sunday 10 May 2026 ACSTForecast update in hr min s Forecast update imminent
Cactus surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cactus sea temperature is
18.1° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Cactus this week:
The surf forecast for Cactus over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 11) at 12AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.4m and 15s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cactus in the next 16 days are 1.7m 15s and forecast to arrive on Sunday (May 17) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (May 13) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 11th May) | 3ft (0.9m) 11s |
| Best Surf | 6AM (Thu 14th May) | 3ft (0.9m) 19s |
| Most Powerful | 12AM (Sun 17th May) | 5.5ft (1.7m) 15s |
Table - best surf conditions forecast for Cactus over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Wed morning, min 16°C on Sun afternoon). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Fri afternoon, min 17°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Sun 10 | Monday 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
SW 12 | SW 11 | SSW 10 | SW 13 | SW 15 | SW 14 | SW 14 | SW 13 | SW 14 | SW 13 | SW 16 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 15 | SW 14 | |
273 | 176 | 92 | 63 | 33 | 51 | 49 | 45 | 69 | 63 | 67 | 711 | 813 | 566 | 412 | 428 | 471 | 754 | 778 | 1204 | 780 | |
Wind (km/h) | |||||||||||||||||||||
cross | cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | off | cross | off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross | cross | |
High Tide | 5:32PM0.80m | 11:33AM0.68m | 9:30PM0.87m | 10:51AM0.84m | 10:21PM0.94m | 11:01AM1.02m | 10:59PM0.96m | 11:22AM1.20m | 11:33PM0.93m | 11:47AM1.34m | 00:01AM0.87m | 12:13PM1.44m | 00:22AM0.78m | ||||||||
Low Tide | 4:36AM0.35m | 3:36PM0.60m | 4:27AM0.26m | 4:28PM0.41m | 4:41AM0.19m | 5:07PM0.24m | 4:59AM0.14m | 5:45PM0.12m | 5:17AM0.11m | 6:21PM0.06m | 5:35AM0.08m | 6:56PM0.06m | 5:50AM0.05m | ||||||||
 |  |  | | | | | | | | | | |  |  | |  | | | | | |
 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 |
 | 5:52 | — | — | 5:52 | — | — | 5:51 | — | — | 5:50 | — | — | 5:50 | — | — | 5:49 | — | — | 5:47 | — | 5:47 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 19 | 19 | 18 | 19 | 19 | 18 | 20 | 20 | 20 | 20 | 21 | 20 | 23 | 24 | 23 | 20 | 19 | 17 | 16 |
13 | 15 | 16 | 15 | 14 | 17 | 15 | 15 | 18 | 16 | 18 | 18 | 18 | 17 | 19 | 21 | 19 | 17 | 17 | 15 | 13 | |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 11 | SSW 10 | SSW 10 | SSW 8 | SSW 8 | SSW 7 | SW 13 | SSE 4 | SW 13 | SW 13 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 15 | SW 14 |
 kJ | 273 | 176 | 92 | 55 | 24 | 22 | 11 | 45 | 7 | 63 | 60 | 711 | 813 | 566 | 412 | 428 | 471 | 754 | 778 | 1204 | 780 |
Swell 2 Height (m) Direction Period (s) | — | SW 15 | SW 14 | SW 13 | SW 15 | SW 14 | SW 14 | SW 16 | SW 14 | S 7 | SW 16 | — | — | — | — | — | — | — | SW 18 | — | — |
| kJ | — | 77 | 68 | 63 | 33 | 51 | 47 | 41 | 69 | 4 | 67 | — | — | — | — | — | — | — | 312 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SW 12 | SW 18 | SW 18 | SSW 6 | SW 7 | — | SE 3 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 21 | 13 | 49 | 8 | 2 | — | 2 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 12 | SE 3 | — | — | — | — | — | SSE 4 | — | SSE 4 | — | — | — | — | — | SW 14 | — | — | SW 14 | SW 6 | SW 14 |
| kJ | 28 | 3 | — | — | — | — | — | 8 | — | 7 | — | — | — | — | — | 49 | — | — | 64 | 1 | 51 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 243 | 0 | 0 | 132 | 0 | 0 | 489 | 0 | 0 | 146 | 0 | 0 | 0 | 0 | 146 | 1 | 1 | 1 | 401 | 491 | 491 |
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 Cactus 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 Cactus Surf forecast
The above surf forecast table for Cactus provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cactus can be found by selecting the local surf guide option on the grey menu. Our Cactus 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 (Cactus) 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 Cactus 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 Cactus, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 63 km (39 miles) away.
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