Surf Forecasts:
Magna Tubes surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11AM (local time) - 13ft (4.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 11AM (local time) - 13ft (4.0m), 14s period, SW swell with 5,868 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 8PM (local time) - 10ft (3.0m), 13s period with SW swell.
Best Forecast Surf Conditions for Magna Tubes this week:
The surf forecast for Magna Tubes over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 8PM. The primary swell is predicted to be 3.0m and 13s period with a secondary swell of 0.6m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Magna Tubes in the next 16 days are 4.0m 14s and forecast to arrive on Thursday (Aug 20) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Saturday (Aug 22) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 18th Aug) | 10ft (3.0m) 13s |
| Best Surf | 11AM (Thu 20th Aug) | 13ft (4.0m) 14s |
| Most Powerful | 11AM (Thu 20th Aug) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Magna Tubes over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about what’s happening at Magna Tubes.
We’re looking at a solid run of swell, but this one is for the crew who’ve earned their stripes. The water is sitting at 54°F, which is a massive 12°F colder than usual for this time of year – you’ll want a thick hood and boots, it’s seriously chilly out there.
The first real action kicks off on Tuesday afternoon, August 18. Swell is 10 ft from the SW with a 13-second period, and the wind is a light cross-off. The wave energy is pumping hard at 2552 – that’s strong stuff. It’s a bit of a mixed bag, though, with tide or conditions making it a bit marginal. Wednesday morning, August 19, looks cleaner with lighter SW wind, still 10 ft SW swell, 13 seconds, and energy at 2579. That’s a solid window for the experienced surfer.
But the standout is Thursday morning, August 20. Swell jumps to 13 ft from the SW, period 14 seconds, and the energy rockets to 5891 – that’s very strong. Winds are light WSW cross-off, making it clean. This is big, powerful, and for experts only. That’s the one to circle.
The next morning, Friday August 21, drops to 8 ft but with an onshore E wind, so it’s a bit messy. The swell fades and picks up again over the weekend. Saturday August 22 has strong WSW winds at 25 mph, making it all but unrideable. Sunday morning August 23 bumps back to 12 ft SW, 12 seconds, with moderate cross-off winds – worth a look if you’re keen.
We get a few smaller, cleaner windows, like Monday morning August 24 with 8 ft SW and light SW wind, and Wednesday morning August 26 – glassy, 6 ft SW, 13 seconds, energy at 1359, and that’s a clean, fun session for the experienced.
By the end of the month, the swell period gets long. Monday August 31 sees a 4 ft SSW swell with a 16-second period, energy at 2429, but the wind is cross. That long period at a reef break like Magna-Tubes can be pretty special, but it’s a bit tricky with the cross-shore.
Overall, if you’re an expert, Thursday morning August 20 is the big one. The second week has some promising windows, but the confidence is lower – keep an eye on the forecasts. There’s a short gap around August 22 with no good surf, but it doesn’t stay flat for long around here.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Wed afternoon, min 12°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Fri afternoon, min 13°C on Sun night). Winds decreasing (strong winds from the WSW on Sat afternoon, calm by Sun night). | |||||||||||||||||||
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) | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SSW 11 | SW 11 | SSW 11 | SW 11 | SW 12 | SW 12 | SW 12 | SW 11 | SSW 11 | SW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 2483 | 3165 | 2536 | 2373 | 1292 | 5868 | 4527 | 2672 | 1638 | 1324 | 560 | 1896 | 583 | 2432 | 3260 | 2577 | 1702 | 1305 | 603 | 1467 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross | glassy | on | on | off | cross-off | cross-off | off | cross-off | cross | off | cross-off | cross-off | off |
High Tide | 6:59PM1.39m | 7:09AM1.19m | 7:31PM1.24m | 7:46AM1.06m | 8:17PM1.09m | 9:08AM0.94m | 10:35PM1.00m | 12:36PM0.96m | 00:52AM1.07m | 1:40PM1.10m | 1:44AM1.20m | 2:15PM1.24m | 2:18AM1.33m | |||||||
Low Tide | 1:12AM0.45m | 1:09PM0.48m | 1:49AM0.58m | 1:47PM0.62m | 2:53AM0.70m | 3:08PM0.75m | 5:54AM0.72m | 6:33PM0.74m | 7:28AM0.60m | 7:41PM0.62m | 8:04AM0.46m | 8:16PM0.49m | ||||||||
 |  |  | |  | | | | | | | | | | | | | | | | |
 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — |
 | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 15 | 17 | 18 | 14 | 16 | 17 | 14 | 16 | 20 | 16 | 18 | 19 | 15 | 16 | 17 | 13 | 16 | 17 | 13 |
Feels °C | 13 | 15 | 16 | 15 | 9 | 14 | 14 | 14 | 13 | 16 | 15 | 9 | 10 | 10 | 12 | 14 | 13 | 14 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | E 9 | SW 12 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SSW 11 | E 7 | SSW 11 | SW 11 | SW 12 | SW 12 | SW 12 | SW 11 | SSW 11 | SW 11 |
| kJ | 2483 | 3165 | 2536 | 27 | 1292 | 5868 | 4527 | 2672 | 1638 | 1324 | 560 | 15 | 583 | 2432 | 3260 | 2577 | 1702 | 1305 | 603 | 1467 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | — | WSW 11 | — | ENE 8 | E 8 | ENE 8 | E 8 | E 9 | E 9 | WSW 12 | WSW 12 |
| kJ | 69 | 48 | 43 | 43 | 26 | 23 | 13 | 6 | 6 | — | 411 | — | 12 | 5 | 7 | 5 | 6 | 2 | 550 | 111 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | E 5 | — | — | — | — | — | — | E 9 | SSW 15 | E 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | 20 | — | — | — | — | — | — | 6 | 225 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | SW 12 | SW 7 | — | — | — | — | E 4 | — | SW 11 | WSW 8 | — | — | — | — | — | — | WSW 3 |
| kJ | — | — | — | 2373 | 395 | — | — | — | — | 12 | — | 1896 | 840 | — | — | — | — | — | — | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1 | 51 | 0 | 141 | 1 | 0 | 1 | 0 | 30 | 183 | 0 | 143 | 180 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Eastern Cape (South) | ||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Magna Tubes 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 Magna Tubes Surf forecast
The above surf forecast table for Magna Tubes provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Magna Tubes can be found by selecting the local surf guide option on the grey menu. Our Magna Tubes 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 (Magna Tubes) 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 Magna Tubes 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.
Magna Tubes is 19 km (12 miles) from the city of Kruisfontein. If you plan a holiday in Eastern Cape (South), look for hotels and other accommodation in Kruisfontein. Kruisfontein has rooms for a wide range of budgets as well as car hire and transport links.
Nearest