
Surf Forecasts:
Onrus surf forecast from 23 Jul 2026:
- Best quality surf: Friday 24 Jul, 2AM (local time) - 13ft (4.0m), 16s period, SW swell with cross-shore winds.
- Most powerful swell: Friday 24 Jul, 2AM (local time) - 13ft (4.0m), 16s period, SW swell with 7,862 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 2AM (local time) - 13ft (4.0m), 16s 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 2AM. The primary swell is predicted to be 4.0m and 16s 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 4.0m 16s and forecast to arrive on Friday (Jul 24) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 6s period and expected on Tuesday (Jul 28) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 24th Jul) | 13ft (4.0m) 16s |
| Best Surf | 2AM (Fri 24th Jul) | 13ft (4.0m) 16s |
| Most Powerful | 2AM (Fri 24th Jul) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Onrus over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s shaping up at Onrus, the only spot on the menu for the next couple of weeks. It’s a reef setup, so we’re dealing with a wave that needs a bit of respect, and it’s inconsistent, so you gotta be in the right place at the right time. The water’s around average for this time of year, nothing wild there.
The coming days are a bit of a mixed bag, but we’ve got a couple of real standouts. The first big moment is this coming Sunday, the 26th of July. We’ve got a solid 6ft to 6ft swell rolling in from the southwest, with a nice long period of 12 seconds – that’s proper groundswell energy. The big news is the glassy conditions all day. The wave energy is strong (1186 on Sunday morning, 1119 in the afternoon). For experienced surfers, this is the pick of the week. The reef setup will handle that long-period swell well, giving you some proper lines. Just be aware, it can get a little crowded here sometimes.
After that, things get a bit messy. Monday the 27th through Wednesday the 29th, the wind goes onshore and fresh, turning the surf to junk. The swell is still there, but it’s no good for paddle surfing. At over 8ft on Monday and Tuesday, it’s expert-only territory anyway, and with that strong cross-onshore wind, honestly, this setup looks more interesting for kite surfing.
We hit a bit of a lull from Thursday the 30th through to the 1st of August, with weak energy (around 400-466) and small, choppy waves. Not much to write home about.
Then, on Saturday the 1st of August, we get a little reprieve. The afternoon session sees 5ft southwest swell, period 13 seconds, and glassy conditions. The energy is building (785). It’s a good, clean option for a weekend wave.
Now, looking further out, the 5th of August, a Wednesday, is another one to circle. The morning shows a glassy 7ft southwest swell with a 13-second period and strong wave energy (1494). That’s a solid groundswell on a reef, and it’s glassy. The 6th of August, Thursday morning, is also looking promising with 8ft swell from the southwest, a 13-second period, and a light cross-offshore wind keeping things clean. Energy is strong (1803). For experienced surfers, these are the standouts in the second week – but remember, it’s a long way off, so keep an eye on it.
The forecast wraps up with a few cleaner, smaller days around the 7th and 8th of August, but nothing that hits the heights of those mid-week gems.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sun afternoon, min 10°C on Fri morning). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Mon morning. Very mild (max 16°C on Wed afternoon, min 9°C on Wed morning). Winds increasing (light winds from the ESE on Mon morning, fresh winds from the E by Tue afternoon). | ||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
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 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 15 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
Wave Graph | |||||||||||||||||||
7862 | 4251 | 3419 | 1919 | 1922 | 1693 | 1446 | 963 | 778 | 1240 | 2360 | 5687 | 4161 | 4279 | 3680 | 1811 | 1083 | 821 | 585 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | on | cross | glassy | glassy | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 11:04PM1.11m | 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 | ||||||
Low Tide | 5:58AM0.57m | 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 | |||||||
— | 7:43 | — | — | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:39 | — | — | 7:39 | — | — | |
5:55 | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 14 | 12 | 15 | 12 | 14 | 18 | 15 | 19 | 20 | 15 | 15 | 14 | 14 | 14 | 15 | 14 | 13 | 16 | 13 |
Feels °C | 11 | 10 | 13 | 10 | 10 | 15 | 13 | 17 | 17 | 14 | 14 | 8 | 8 | 7 | 8 | 7 | 7 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 15 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
7862 | 4251 | 3419 | 1919 | 1922 | 1693 | 1446 | 963 | 778 | 1240 | 2360 | 5687 | 4161 | 4279 | 3680 | 1811 | 1083 | 821 | 585 | |
Swell 2 Height (m) Direction Period (s) | SE 12 | — | SE 7 | SE 11 | SSW 13 | — | ESE 10 | SW 15 | SW 14 | SSW 16 | SSW 18 | — | — | — | — | — | SE 6 | ESE 9 | SE 10 |
37 | — | 32 | 19 | 569 | — | 20 | 223 | 341 | 179 | 559 | — | — | — | — | — | 34 | 53 | 48 | |
Swell 3 Height (m) Direction Period (s) | — | — | SE 12 | — | SE 11 | — | — | ESE 10 | ESE 10 | WSW 12 | — | — | — | — | — | — | — | — | — |
— | — | 34 | — | 30 | — | — | 9 | 9 | 57 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ESE 11 | — | — | — | — | S 6 | — | SE 6 | SE 6 | ESE 6 | ESE 5 | ENE 4 | ESE 9 | — |
— | — | — | — | — | 78 | — | — | — | — | 322 | — | 306 | 297 | 320 | 100 | 12 | 320 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 30 | 10 | 32 | 10 | 10 | 10 | 10 | 0 | 0 | 4 | 206 | 245 | 86 | 86 | 86 | 45 | 32 | 32 | 10 |
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.










