
Surf Forecasts:
Cactus surf forecast from 12 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 12AM (local time) - 6ft (1.9m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 13 Jul, 6PM (local time) - 10ft (3.0m), 17s period, SW swell with 5,733 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 12AM (local time) - 6ft (1.9m), 15s period with SW swell.
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 Wednesday (Jul 15) at 12AM. The primary swell is predicted to be 1.9m and 15s period. 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 3.0m 17s and forecast to arrive on Monday (Jul 13) 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 0.9m 4s period and expected on Sunday (Jul 19) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 15th Jul) | 6ft (1.9m) 15s |
| Best Surf | 12AM (Wed 15th Jul) | 6ft (1.9m) 15s |
| Most Powerful | 6PM (Mon 13th Jul) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Cactus over the next 16 days.
Alright, Rusty here. Let’s get into it.
Right off the bat, this forecast is a bit of a heartbreaker for the first week. The swell is there, but the wind is just trashing it day after day. We’re looking at a solid run of poor surf conditions pretty much from Sunday the 12th through to the middle of the week. The combined wave energy is moderate to strong, hitting 3143 on Sunday morning, but with a strong onshore wind from the west, it’s just a messy, choppy mess. Not worth paddling out.
Things start to show a glimmer of hope on Wednesday morning, the 15th. That’s when the wind finally swings offshore from the ENE at a light 6 mph. The swell is a clean 5 ft from the SW, with a period of 14 seconds – that’s proper groundswell. The energy is moderate (1092), and the conditions are described as clean. This is the standout for the early part of the forecast. Cactus (reef) is the break, and it’s fairly consistent. The water temperature is sitting at 60°, which is about 1° cooler than average for this time of year – nothing too wild, just a touch cool. Wednesday afternoon stays clean with a cross-offshore breeze, but the swell drops a little.
Thursday the 16th has a solid pulse in the afternoon – 5 ft of SW swell with a very long 18-second period. That’s a lot of energy for a reef break, and it’ll offer some nice, powerful lines. The wind is a light cross-offshore from the NNE, so it’ll be clean. This is another top pick for experienced surfers.
After that, the swell really fades. The weekend of the 18th and 19th is small and weak, with energy dropping to 180. The wind is still clean, but there’s just not enough push. A bit of a lull.
Then, on Monday the 20th, we get a real treat. The morning is glassy – I mean, dead flat calm with a SSE wind at just 3 mph. The swell is 6 ft from the SW, period of 16 seconds. That’s a beautiful combination. The energy is moderate (1519). This is the second standout of the entire forecast. If you can get out there that Monday morning, you’ll be rewarded with smooth, lined-up waves.
The rest of the second week turns ugly again. The wind picks up, and by the 24th and 25th, we’ve got a big, messy, blown-out swell. The 24th Friday morning has a huge spike in energy (4512), but it’s a 6 ft SW swell with a strong cross-onshore wind. That’s a no-go zone. The same story repeats until the end of the forecast period on the 27th, with near-gale force winds and a completely blown-out mess.
Bottom line: The absolute best windows are Wednesday morning the 15th and Monday morning the 20th. Both offer clean, glassy conditions with a decent groundswell at Cactus. The rest of the time, you’re fighting the wind. The surf will be too big and messy for beginners on most days, and for the experts, the windows are tight.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Sun morning, min 14°C on Sun morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Wed afternoon, min 13°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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 12 | SW 12 | SW 14 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 21 |
Wave Graph | |||||||||||||||||||||
1914 | 1150 | 1618 | 3077 | 3193 | 3161 | 2645 | 2325 | 1610 | 1092 | 998 | 746 | 506 | 1201 | 979 | 692 | 543 | 327 | 180 | 140 | 224 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:48AM1.29m | 00:34AM0.55m | 12:23PM1.38m | 00:49AM0.58m | 12:54PM1.41m | 1:01AM0.62m | 1:19PM1.39m | 1:14AM0.68m | 1:39PM1.33m | 1:29AM0.76m | 1:54PM1.25m | 1:49AM0.83m | 2:05PM1.17m | 2:13AM0.89m | |||||||
Low Tide | 7:15PM0.15m | 5:12AM0.27m | 7:39PM0.14m | 5:46AM0.18m | 7:58PM0.18m | 6:17AM0.12m | 8:10PM0.22m | 6:44AM0.10m | 8:17PM0.25m | 7:10AM0.11m | 8:21PM0.24m | 7:34AM0.15m | 8:28PM0.21m | ||||||||
7:37 | — | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | |
— | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 15 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 18 | 17 | 17 | 18 | 17 | 15 | 18 | 18 | 17 | 20 | 19 |
Feels °C | 11 | 9 | 11 | 11 | 11 | 12 | 13 | 13 | 13 | 12 | 15 | 14 | 14 | 14 | 13 | 9 | 13 | 13 | 9 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 19 | SW 18 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 13 |
1914 | 15 | 447 | 3077 | 3193 | 3161 | 2645 | 2325 | 1610 | 1092 | 998 | 746 | 506 | 1201 | 979 | 692 | 543 | 327 | 180 | 140 | 136 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 21 | SW 19 | S 12 | — | S 11 | — | — | — | SW 24 | SW 21 |
— | — | — | — | — | — | — | — | — | — | — | 18 | 181 | 11 | — | 9 | — | — | — | 22 | 224 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 12 | SW 12 | SW 14 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | — | — | — | — | NNE 3 | — | — | NNE 3 | — | NNE 3 | N 4 | NNW 4 | N 4 |
1229 | 1150 | 1618 | 66 | 68 | 75 | 69 | 64 | — | — | — | — | 4 | — | — | 3 | — | 3 | 12 | 15 | 12 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1620 | 1626 | 1229 | 1344 | 1288 | 1035 | 552 | 491 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 401 | 401 | 564 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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.










