Surf Forecasts:
Onrus surf forecast from 13 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 8PM (local time) - 10ft (3.0m), 14s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 15 Jul, 11PM (local time) - 10ft (3.0m), 14s period, SW swell with 3,859 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 2AM (local time) - 2.5ft (0.7m), 12s period with W 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 Tuesday (Jul 14) at 2AM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Onrus in the next 16 days are 3.0m 14s and forecast to arrive on Wednesday (Jul 15) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Jul 14) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 14th Jul) | 2.5ft (0.7m) 12s |
| Best Surf | 8PM (Wed 15th Jul) | 10ft (3.0m) 14s |
| Most Powerful | 11PM (Wed 15th Jul) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Onrus over the next 16 days.
The Lowdown
Hey, it’s Rusty. Let me break down Onrus for you in feet and miles per hour, the way it should be.
Right now, Tuesday is flat and ugly. We’ve got a weak 2ft swell from the west with a short period and a cross-off wind. Combined energy is a measly 190 (moderate energy). Don’t bother.
Wednesday morning, July 15th, that’s the bell ringer. Swell jumps to 4ft from the SW with a very long 17-second period—that’s pure groundswell. Combined energy is 1163 (moderate energy) and with a clean offshore breeze, it’s going to be lined up clean. This is for intermediate and above. Onrus is an inconsistent reef, so patience pays. That afternoon is glassy with 8ft of SW swell and 3478 combined energy (strong energy). Over 8ft means only experts.
Thursday, July 16th, keeps it pumping. Morning has 8ft SW swell, glassy calm, and 2108 combined energy (strong energy). Expert territory. Afternoon drops to 7ft, still glassy, with 1475 combined energy (moderate energy). Clean.
Friday, July 17th, is a write-off. Wind swings cross-on, swell drops, and it’s choppy. Skip.
Saturday, July 18th, comes back. Morning sees 5ft from the south with a cross-off breeze and 657 combined energy (moderate energy). Clean and fun. Afternoon similar with 4ft.
Sunday, July 19th, is mixed. Morning has 7ft from the WSW with rain and 1395 combined energy (moderate energy), but cross-off wind keeps it clean. Afternoon gets to 8ft but a light cross-onshore wind puts small ripples on it.
Monday, July 20th, stays marginal. 8ft from the SSW, but onshore wind building. Combined energy is 1395 (moderate energy) morning, 1656 (strong energy) afternoon.
Tuesday, July 21st, another standout. Morning delivers 8ft from the SSW with a very long 15-second period, combined energy of 3371 (strong energy), and glassy conditions. Excellent for experts. Afternoon is still 8ft but with a cross-shore wind, so morning wins.
Wednesday, July 22nd, is huge. Morning has 10ft from the SW, 14-second period, and 3009 combined energy (strong energy). Fresh offshore at 22 mph, but it’s too big for the break. Afternoon has 8ft but a near-gale 34 mph offshore wind. Hard pass.
Thursday, July 23rd, still has size. Morning 8ft with a moderate 16 mph offshore and 2709 combined energy (strong energy). Demanding. Afternoon drops to 6ft with a cross-off breeze.
Friday, July 24th, winds down. Morning 4ft from SW, light offshore, and 767 combined energy (moderate energy). Clean fun. Afternoon gets a 19 mph breeze, less appealing.
From Saturday, July 25th, we hit a quiet spell. Swell drops to 3ft, poor conditions. Sunday, July 26th, is big again at 10ft from the SW with 3650 combined energy (strong energy), but a strong cross-onshore wind makes it a mess. Looks better for kiteboarding.
Monday, July 27th, returns to form. Morning 8ft from SW, cross-off, and 2490 combined energy (strong energy). Afternoon is a gem: 7ft, glassy, and 2268 combined energy (strong energy). Excellent.
Tuesday, July 28th, keeps going. Morning 8ft from the SSE with a short 10-second period and offshore breeze. 2926 combined energy (strong energy). Afternoon settles to 5ft from SW with 1167 combined energy (moderate energy), clean.
Wednesday, July 29th, closes with 5ft from SW and a light onshore wind, 737 combined energy (moderate energy). Marginal.
The gap from July 25th to 26th has no good surf, but forecasts change. Circle July 15th and July 21st as the standouts for the experienced. For everyone else, July 18th and July 27th afternoon are your sessions.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 17°C on Wed morning, min 13°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sun morning. Very mild (max 19°C on Fri afternoon, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Mon 20 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | W 12 | W 11 | W 10 | SW 18 | SW 17 | SW 16 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SSW 10 | S 11 | S 11 | SW 12 | WSW 11 | WSW 11 | SW 10 | SSW 11 | SSW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 137 | 112 | 96 | 108 | 745 | 3439 | 3519 | 2108 | 1475 | 1013 | 981 | 745 | 275 | 482 | 396 | 1100 | 1287 | 1555 | 984 | 1338 | 1260 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | glassy | cross | glassy | glassy | cross-off | cross-on | cross-on | cross | cross-off | cross-off | off | cross-off | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:56AM1.59m | 3:29PM1.60m | 3:44AM1.61m | 4:14PM1.66m | 4:29AM1.59m | 4:57PM1.67m | 5:12AM1.52m | 5:38PM1.64m | 5:54AM1.43m | 6:19PM1.56m | 6:36AM1.32m | 7:00PM1.46m | 7:20AM1.21m | 7:44PM1.34m | |||||||
Low Tide | 8:50PM0.19m | 9:17AM0.04m | 9:40PM0.12m | 10:01AM0.01m | 10:27PM0.10m | 10:42AM0.02m | 11:12PM0.12m | 11:22AM0.08m | 11:56PM0.18m | 12:01PM0.17m | 00:40AM0.26m | 12:39PM0.28m | 1:24AM0.36m | 1:19PM0.41m | |||||||
 |  | | | | |  |  | | |  | | | | | |  | | | | | |
 | — | 7:48 | — | — | 7:47 | — | — | 7:47 | — | — | 7:46 | — | — | 7:46 | — | — | 7:45 | — | — | 7:45 | — |
 | 5:49 | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — |
Temp °C | 14 | 15 | 16 | 15 | 17 | 17 | 15 | 17 | 17 | 15 | 17 | 19 | 17 | 17 | 18 | 15 | 15 | 15 | 13 | 13 | 16 |
Feels °C | 13 | 12 | 12 | 12 | 15 | 16 | 15 | 17 | 17 | 15 | 15 | 17 | 15 | 14 | 15 | 14 | 12 | 13 | 11 | 11 | 14 |
Swell 1 Height (m) Direction Period (s) | W 12 | W 11 | W 10 | W 9 | SW 11 | SW 16 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SSW 10 | S 11 | S 11 | SW 12 | SSE 10 | WSW 11 | SW 10 | SSW 11 | SSW 11 |
| kJ | 137 | 112 | 96 | 83 | 361 | 3439 | 3519 | 2108 | 1475 | 1013 | 981 | 745 | 275 | 482 | 396 | 1100 | 108 | 1301 | 984 | 1338 | 1260 |
Swell 2 Height (m) Direction Period (s) | S 9 | SSE 9 | S 9 | SW 18 | SW 17 | W 9 | ESE 10 | E 10 | E 10 | E 10 | E 11 | S 13 | S 12 | WSW 10 | WSW 9 | S 10 | E 7 | SSE 10 | W 10 | W 9 | SW 19 |
| kJ | 60 | 47 | 40 | 108 | 745 | 39 | 18 | 7 | 8 | 8 | 9 | 14 | 239 | 123 | 115 | 225 | 4 | 57 | 47 | 40 | 368 |
Swell 3 Height (m) Direction Period (s) | SSW 10 | SSW 9 | SW 12 | SW 12 | W 9 | ESE 9 | — | — | — | — | — | E 11 | WSW 10 | SW 9 | SW 13 | ESE 7 | E 10 | E 10 | SSE 10 | SW 21 | W 10 |
| kJ | 61 | 31 | 37 | 51 | 57 | 28 | — | — | — | — | — | 9 | 179 | 52 | 166 | 10 | 2 | 2 | 37 | 17 | 28 |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | W 4 | W 4 | — | — | — | — | — | — | — | ESE 3 | ENE 3 | — | W 3 | — | WSW 11 | WSW 11 | — | — | — |
| kJ | — | 1 | 10 | 8 | — | — | — | — | — | — | — | 3 | 3 | — | 2 | — | 1287 | 1555 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 8 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 10 | 4 | 4 | 0 | 0 | 0 | 31 | 4 | 10 | 10 | 23 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Onrus 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 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.
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