
Surf Forecasts:
Onrus surf forecast from 24 Jul 2026:
- Best quality surf: Friday 24 Jul, 2PM (local time) - 10ft (3.0m), 14s period, SW swell with cross-shore winds.
- Most powerful swell: Monday 27 Jul, 2PM (local time) - 10ft (3.0m), 17s period, SSW swell with 5,349 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 2PM (local time) - 10ft (3.0m), 14s period with SW swell.
Best Forecast Surf Conditions for Onrus this week:
The surf forecast for Onrus over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 24) at 2PM. The primary swell is predicted to be 3.0m and 14s period. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Onrus in the next 16 days are 3.0m 17s and forecast to arrive on Monday (Jul 27) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Tuesday (Jul 28) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Fri 24th Jul) | 10ft (3.0m) 14s |
| Best Surf | 2PM (Fri 24th Jul) | 10ft (3.0m) 14s |
| Most Powerful | 2PM (Mon 27th Jul) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Onrus over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming our way.
Right off the bat, we’ve got a massive pulse of swell, but it’s a bit of a mixed bag for Onrus. This is a reef setup, exposed to the SW, and it’s inconsistent, so patience will be key. The water’s sitting at 60°F which is pretty much normal for this time of year.
We kick off on Friday the 24th of July. The swell is a solid 10ft from the SW, period 15 seconds, and the combined energy is pumping (4251). That’s a lot of water moving. But honestly, for a break like this, that’s too big. It’s going to be a washing machine, even with the clean NE wind in the morning. This one is for the experts only, and even then, it’s a handful. The afternoon turns a bit cross-on, so not the best.
Saturday the 25th is still big, 8ft in the morning, but the wind is cross-on and the period drops to 13 seconds. The energy is still high (2378), but the quality is gone. Score is low. Skip it.
The real window opens Sunday the 26th of July. The morning is looking prime with a glassy sea, 7ft SW swell at 12 seconds. The energy is still strong (1358), but the size is getting into a more manageable range for experienced surfers. That glassy wind is a major positive – it’ll be clean. This is your best bet for the first week. The afternoon swell drops to 6ft, but the wind swings onshore, so get it early.
Monday the 27th and Tuesday the 28th are a write-off. The wind is howling onshore at 16-22 mph with 8ft to 12ft swell. The energy is through the roof (5006+), but the conditions are ugly. Don’t bother.
We get a bit of a lull from Wednesday the 30th through to Thursday the 31st. The swell drops to 4ft, period is short, and the energy is weak (449). The wind is still onshore, so it’s poor.
Here’s the standout. Friday the 31st of July, the afternoon session is looking magic. The wind goes glassy, the swell is 5ft from the SW with a 14-second period. The energy is moderate (1079), but the clean conditions make it excellent for experienced surfers. This is a proper window.
The run of good conditions continues. Saturday the 1st of August and Sunday the 2nd of August are both looking great. The wind is glassy or light cross-off, with a consistent 5ft to 5ft SW swell, period 13-14 seconds. The energy is solid (623-1113). Expect very good to excellent surf. For Sunday the 2nd, the swell is 5ft at 14 seconds – that’s a long period groundswell. It’ll have some punch, and at a reef, it should shape up nicely. This is the other standout.
Monday the 3rd of August holds up in the morning with glassy conditions and 5ft swell, but the afternoon gets a moderate cross-off wind. Still clean.
We get a bit of a drop on Tuesday the 4th, with 4ft swell and onshore wind. Not great.
Then, look out for Wednesday the 5th of August. We’ve got another big pulse coming, 10ft SW at 15 seconds, and the wind is offshore from the NW. The energy is massive (4337). But, just like the start of the period, it’s too big for this spot. If you’re a hellman, the offshore wind will make it epic, but for most, it’s a pass.
The rest of the second week, from the 6th to the 8th of August, sees another big swell, 13ft from the W, with strong offshore winds. Again, too big and too much energy (4214). This is more of a kite-surfing setup than a paddle session.
So, to wrap it up: The best surf on offer is the glassy morning of Sunday the 26th of July, and then the run of clean, fun waves from Friday afternoon the 31st of July through Sunday the 2nd of August. The second week has size, but it’s for the brave or the wind sports crew.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 10°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Mon morning. Very mild (max 17°C on Wed afternoon, min 10°C on Tue night). Winds increasing (calm on Mon morning, fresh winds from the ESE by Tue afternoon). | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
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 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 |
Wave Graph | |||||||||||||||||||||
4251 | 3419 | 1919 | 2000 | 1693 | 1446 | 1040 | 778 | 1259 | 3460 | 5006 | 4670 | 5022 | 3580 | 1997 | 905 | 613 | 486 | 405 | 398 | 495 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | on | cross | glassy | cross | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross |
High Tide | 12:12PM1.04m | 00:20AM1.14m | 1:12PM1.12m | 1:16AM1.21m | 1:55PM1.21m | 1:58AM1.29m | 2:31PM1.31m | 2:34AM1.36m | 3:04PM1.39m | 3:07AM1.42m | 3:34PM1.47m | 3:39AM1.46m | 4:04PM1.53m | 4:10AM1.48m | |||||||
Low Tide | 6:16PM0.65m | 7:01AM0.50m | 7:17PM0.57m | 7:46AM0.42m | 8:01PM0.49m | 8:23AM0.33m | 8:37PM0.40m | 8:55AM0.25m | 9:10PM0.33m | 9:24AM0.19m | 9:42PM0.28m | 9:52AM0.14m | 10:12PM0.24m | ||||||||
7:43 | — | — | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:39 | — | — | 7:39 | — | — | 7:37 | — | — | |
— | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 15 | 12 | 15 | 18 | 15 | 18 | 19 | 14 | 15 | 14 | 14 | 14 | 15 | 13 | 14 | 17 | 14 | 16 | 20 | 17 |
Feels °C | 12 | 13 | 10 | 12 | 15 | 12 | 16 | 17 | 13 | 14 | 9 | 8 | 7 | 8 | 7 | 8 | 11 | 8 | 12 | 16 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 |
4251 | 3419 | 1919 | 2000 | 1693 | 1446 | 1040 | 778 | 1259 | 3460 | 5006 | 4670 | 5022 | 3580 | 1997 | 905 | 613 | 486 | 405 | 398 | 495 | |
Swell 2 Height (m) Direction Period (s) | — | SE 7 | WSW 14 | SSW 13 | — | ESE 10 | SW 15 | SW 14 | SW 17 | — | — | — | — | — | — | SE 8 | — | SE 9 | SE 10 | SE 10 | SE 11 |
— | 49 | 1240 | 378 | — | 20 | 318 | 390 | 227 | — | — | — | — | — | — | 73 | — | 67 | 39 | 39 | 29 | |
Swell 3 Height (m) Direction Period (s) | — | — | ESE 11 | SE 11 | — | — | ESE 10 | ESE 10 | WSW 12 | — | — | — | — | — | — | — | — | S 14 | S 13 | S 12 | S 11 |
— | — | 12 | 30 | — | — | 10 | 10 | 57 | — | — | — | — | — | — | — | — | 4 | 13 | 12 | 10 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ESE 11 | — | — | — | — | S 6 | — | SE 7 | SE 6 | SE 6 | E 4 | E 4 | ESE 8 | ENE 3 | — | — | — |
— | — | — | — | 23 | — | — | — | — | 175 | — | 352 | 255 | 261 | 48 | 21 | 90 | 4 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 32 | 10 | 10 | 10 | 10 | 0 | 32 | 40 | 206 | 247 | 40 | 86 | 86 | 23 | 34 | 34 | 10 | 4 | 4 | 4 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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Information about the Onrus Surf forecast
The above surf forecast table for Onrus provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Onrus can be found by selecting the local surf guide option on the grey menu. Our Onrus 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 (Onrus) 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 Onrus 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.
Onrus is 6 km (4 miles) from Hermanus. If you plan a holiday in Overberg, look for hotels and other accommodation in Hermanus. Hermanus has rooms for a wide range of budgets as well as car hire and transport links.










