Surf Forecasts:
Magna Tubes surf forecast from 15 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 5AM (local time) - 7ft (2.1m), 11s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 2PM (local time) - 10ft (3.0m), 14s period, SW swell with 3,150 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 5AM (local time) - 7ft (2.1m), 11s period with E 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 (Sep 15) at 5AM. The primary swell is predicted to be 2.1m and 11s period with a secondary swell of 1.0m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Magna Tubes in the next 16 days are 3.0m 14s and forecast to arrive on Wednesday (Sep 16) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 10s period and expected on Wednesday (Sep 16) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Tue 15th Sep) | 7ft (2.1m) 11s |
| Best Surf | 5AM (Tue 15th Sep) | 7ft (2.1m) 11s |
| Most Powerful | 2PM (Wed 16th Sep) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Magna Tubes over the next 16 days.
The Lowdown
Alright, Rusty here again, now in feet. Magna Tubes is an exposed reef for advanced surfers, needing a SE swell.
First up, Monday the 14th of September afternoon: a 8 ft E swell, 10-second period. Combined energy is 1542, strong. NNW wind at 15 mph, cross-off, so it’s clean. Water temp is 16°, which is 3° colder than usual—very cold, you’ll need a thick wetsuit.
Tuesday the 15th of September morning is a standout: 6 ft E swell, 11-second period, moderate energy at 948, and a light WSW wind at 6 mph, cross-off and clean. That’s the morning session. Afternoon drops off with onshore wind.
Wednesday the 16th: a big SW groundswell hits. Morning shows 12 ft at 14 seconds, very long period, combined energy 4688, very strong. Wind is WSW at 18 mph, cross-off, clean but over 8 ft, so experts only. Afternoon gets choppy with cross-on wind.
Thursday and Friday, the 17th and 18th, have onshore wind—poor. Saturday the 19th is a mess: 13 ft E swell with 25 mph onshore wind.
Sunday the 20th morning is the next standout: 8 ft ESE swell, 11-second period, combined energy 2310, strong, with a light W offshore wind at 6 mph. Clean, excellent for experienced surfers. That’s the call.
Monday the 21st is marginal. Tuesday the 22nd morning has a 4 ft SSW swell with a 15-second period, very long, but onshore wind.
Wednesday the 23rd morning is clean again: 7 ft SSW, 12 seconds, with a 15 mph WSW cross-off wind. Solid.
Friday the 25th morning is another good one: 7 ft E swell, 9-second period, light W offshore wind at 6 mph. Clean, excellent for experienced surfers. Afternoon holds at 5 ft E with a light offshore.
After that, the swell fades and the winds turn poor. Best sessions are Tuesday the 15th morning and Sunday the 20th morning, with Friday the 25th morning as a solid backup.
Rusty.
Short Range ForecastHeavy rain (total 42mm), heaviest during Thu night. Warm (max 21°C on Tue morning, min 12°C on Thu morning). Winds increasing (light winds from the E on Tue night, fresh winds from the ESE by Thu night). | Days 4-6 Weather SummaryHeavy rain (total 90mm), heaviest during Sun afternoon. Very mild (max 18°C on Sat afternoon, min 15°C on Fri night). Winds decreasing (strong winds from the E on Fri night, calm by Sat night). | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | E 11 | E 11 | SW 10 | E 10 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | ESE 8 | E 8 | E 9 | E 10 | ESE 10 | ESE 10 | SW 14 | SW 14 | SW 13 | SW 12 | E 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 688 | 457 | 672 | 250 | 3038 | 1162 | 1703 | 1404 | 997 | 944 | 1101 | 1148 | 1849 | 1763 | 1422 | 1147 | 1233 | 1608 | 1185 | 850 | 104 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross-off | cross-off | cross-on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | on | cross-off | cross-on | cross | cross | cross-off | cross | cross-on |
High Tide | 5:46PM1.53m | 5:59AM1.37m | 6:12PM1.39m | 6:25AM1.24m | 6:38PM1.24m | 6:55AM1.09m | 7:11PM1.09m | 7:50AM0.95m | 8:56PM0.95m | 12:15PM0.96m | 00:28AM1.02m | 1:12PM1.11m | 1:16AM1.16m | ||||||||
Low Tide | 11:33AM0.21m | 11:56PM0.27m | 11:59AM0.34m | 00:22AM0.40m | 12:25PM0.48m | 00:53AM0.54m | 12:56PM0.63m | 1:41AM0.68m | 2:00PM0.77m | 4:51AM0.75m | 6:22PM0.77m | 6:53AM0.63m | 7:18PM0.62m | ||||||||
 | |  |  | |  | |  |  | | | | |  |  |  | |  |  | | | |
 | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — |
 | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — |
mm | — | — | — | 6 | 6 | 1 | 7 | 5 | 17 | 4 | 2 | — | 2 | 1 | 10 | 28 | 41 | 2 | — | — | — |
Temp °C | 21 | 20 | 18 | 13 | 16 | 16 | 13 | 14 | 15 | 16 | 16 | 16 | 17 | 18 | 17 | 18 | 17 | 17 | 18 | 18 | 16 |
Feels °C | 19 | 18 | 17 | 8 | 12 | 11 | 10 | 9 | 8 | 9 | 9 | 11 | 13 | 17 | 17 | 16 | 15 | 15 | 15 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | E 11 | E 11 | E 10 | E 10 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 12 | SW 12 | ESE 10 | ESE 10 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 |
| kJ | 688 | 457 | 252 | 165 | 3038 | 1162 | 1703 | 1404 | 997 | 944 | 897 | 991 | 613 | 511 | 1422 | 1147 | 1233 | 1608 | 1185 | 850 | 568 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 10 | SW 16 | E 10 | E 10 | S 7 | E 10 | E 10 | E 10 | — | S 6 | — | SW 16 | SW 16 | SW 12 | SW 14 | E 10 | E 9 | SSE 7 | SE 7 | SE 8 |
| kJ | 224 | 308 | 362 | 250 | 131 | 159 | 104 | 75 | 72 | — | 38 | — | 40 | 121 | 389 | 1115 | 614 | 300 | 193 | 126 | 104 |
Swell 3 Height (m) Direction Period (s) | S 10 | SSW 15 | S 12 | — | — | SW 8 | — | — | — | — | — | — | — | — | SW 15 | — | SE 8 | — | E 9 | E 9 | E 9 |
| kJ | 17 | 91 | 11 | — | — | 211 | — | — | — | — | — | — | — | — | 104 | — | 99 | — | 164 | 125 | 96 |
Wind waves Height (m) Direction Period (s) | SW 6 | — | SW 10 | WSW 14 | — | — | SE 6 | SE 6 | ESE 7 | ESE 7 | ESE 8 | E 8 | E 9 | E 10 | — | SSE 6 | S 7 | SSE 7 | — | — | — |
| kJ | 34 | — | 672 | 3869 | — | — | 167 | 177 | 335 | 740 | 1101 | 1148 | 1849 | 1763 | — | 219 | 205 | 365 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 0 | 0 | 18 | 0 | 143 | 198 | 141 | 30 | 198 | 173 | 601 | 894 | 599 | 434 | 198 | 0 | 0 | 275 | 144 | 141 |
Best forecast wave conditions in Eastern Cape (South) | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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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.
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