
Surf Forecasts:
Onrus surf forecast from 5 Jul 2026:
- Best quality surf: Thursday 9 Jul, 2AM (local time) - 10ft (3.0m), 15s period, SW swell with onshore winds.
- Most powerful swell: Wednesday 8 Jul, 8PM (local time) - 8ft (2.5m), 16s period, SW swell with 3,490 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 2AM (local time) - 6.5ft (2.0m), 12s period with WSW 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 Monday (Jul 06) at 2AM. The primary swell is predicted to be 2.0m and 12s period with a secondary swell of 0.3m and 12s. 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 2.5m 16s and forecast to arrive on Wednesday (Jul 08) at 8PM. Winds are predicted to be 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 Wednesday (Jul 08) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 6th Jul) | 6.5ft (2.0m) 12s |
| Best Surf | 2AM (Thu 9th Jul) | 10ft (3.0m) 15s |
| Most Powerful | 8PM (Wed 8th Jul) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Onrus over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here. Let’s have a look at what’s coming down the line for Onrus.
It’s a reef set-up that needs a solid SW swell to wake up, and we’ve got a run of good days ahead. The water temp is sitting about average for this time of year, so no surprises when you get in.
Monday the 6th is where it all kicks off. We’ve got a clean 7ft swell from the WSW pushing in at 11 seconds, combined wave energy is sitting at 999 (moderate) and the wind is a light cross-off from the NE in the morning. The afternoon turns even better – glassy conditions with a 7ft WSW swell. That’s the standout of the first few days. It's an intermediate wave, so this one’s clean and user-friendly. It can get a few heads out there though, so keep an eye out.
Tuesday the 7th holds the quality with a 7ft SW swell, period pushing up to 12 seconds. The morning has glassy conditions and a light NNW offshore. The afternoon is cross-off and clean. This is the kind of long-period groundswell that’s going to line up beautifully on this reef. Combined energy jumps to 1188 then 1499 (moderate to strong). The sets will push through with more power, and you’ll have cleaner paddles between them.
Wednesday the 8th morning still has clean 7ft SW swell with a 13-second period, combined energy reading 2105 (strong). Wind is a cross-off from the W at 15 km/h. Good for experienced surfers. The afternoon turns onshore and lumpy though, so that morning window is the one to chase.
From Thursday the 9th through to the 12th, the wind swings onshore and choppy. Swell hangs around 5ft to 8ft but the quality drops right off. Not worth paddling out unless you’re after a fight.
Monday the 13th sees a drop in size, 4ft SSW swell, but the wind is light and cross. It’s marginal, but if you’re desperate you might find a ripple.
Now the real gem is sitting out there for Tuesday the 15th of July and Wednesday the 16th of July. We’re looking at a massive 12ft SW swell on Wednesday the 15th with a 12-second period. Combined energy hits 5196 (very strong). The wind early is a fresh cross-off from the WSW at 22 mph, but the forecast says it’s clean. This wave is huge – over 8ft – so this is experts-only territory. The reef is going to be handling a lot of water. Thursday the 16th holds similar size with 12ft SW swell, 14-second period and an extremely long-period groundswell feel. Combined energy 4385 (very strong). Wind is light and variable from the NNE with a cross-off component early. That’s going to set up some game-changing barrels for the brave.
Friday the 17th then drops back to a very manageable 7ft SW swell, 12 seconds, and clean offshore wind from the NW in the morning. Combined energy 1129 (moderate). That morning will be an excellent session for experienced surfers, and the crowd factor is only “sometimes” here, so you could still get it with just a handful of others.
The following weekend gets a bit mixed, with cross-on winds and some bump. The tail end of the run on Tuesday the 21st of July shows a nice 8ft SW groundswell with a 15-second period, offshore wind from the WNW at 3 mph, and combined energy of 2472 (strong). That one is another real standout promising very clean, powerful lines for those who can handle it.
There’s a stretch from the 9th to the 12th where it’s flat and windy, but after that, the reef comes alive. The long period swells are best on this reef, so keep that in mind.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Mon afternoon, min 14°C on Wed afternoon). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sat afternoon. Very mild (max 16°C on Fri afternoon, min 10°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sun 12 | |||||||||||||||
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) | WSW 12 | WSW 11 | WSW 11 | WSW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | S 11 | S 11 | S 10 |
Wave Graph | |||||||||||||||||||||
1062 | 978 | 1080 | 1194 | 1162 | 1426 | 1723 | 1426 | 1834 | 3241 | 2644 | 2528 | 2948 | 2507 | 2021 | 1530 | 1211 | 646 | 769 | 566 | 346 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | off | glassy | cross-off | cross-off | cross-off | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on |
High Tide | 6:57AM1.24m | 7:27PM1.39m | 7:50AM1.18m | 8:20PM1.36m | 8:57AM1.14m | 9:26PM1.33m | 10:19AM1.13m | 10:43PM1.33m | 11:41AM1.18m | 11:59PM1.38m | 12:51PM1.28m | 1:06AM1.46m | 1:50PM1.39m | ||||||||
Low Tide | 00:58AM0.39m | 12:59PM0.35m | 1:48AM0.41m | 1:48PM0.42m | 2:49AM0.42m | 2:51PM0.48m | 4:04AM0.42m | 4:11PM0.51m | 5:24AM0.37m | 5:37PM0.48m | 6:36AM0.29m | 6:52PM0.39m | 7:37AM0.19m | 7:55PM0.28m | |||||||
— | 7:50 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | |
5:45 | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 1 | 3 |
Temp °C | 16 | 17 | 18 | 16 | 17 | 18 | 15 | 17 | 16 | 14 | 13 | 14 | 12 | 13 | 16 | 13 | 15 | 14 | 14 | 14 | 13 |
Feels °C | 14 | 14 | 15 | 15 | 16 | 17 | 15 | 16 | 15 | 12 | 9 | 9 | 7 | 7 | 11 | 9 | 13 | 10 | 11 | 12 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 11 | WSW 11 | WSW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | W 12 | S 11 | S 10 |
1062 | 978 | 1080 | 1194 | 1162 | 1426 | 1723 | 1426 | 1834 | 3241 | 2644 | 2528 | 2948 | 2507 | 2021 | 1530 | 1211 | 646 | 67 | 566 | 346 | |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | ESE 11 | SE 11 | SE 11 | SW 22 | SW 20 | SW 18 | SW 17 | — | — | — | — | — | W 14 | W 12 | W 12 | W 11 | SW 17 | W 11 | W 11 |
22 | 21 | 12 | 5 | 4 | 73 | 241 | 679 | 536 | — | — | — | — | — | 15 | 25 | 42 | 37 | 12 | 58 | 56 | |
Swell 3 Height (m) Direction Period (s) | WSW 18 | — | ESE 11 | ESE 11 | SW 24 | SE 10 | ESE 10 | ESE 10 | ESE 10 | — | — | — | — | — | — | W 8 | SW 20 | SW 18 | S 10 | SW 16 | SSW 15 |
31 | — | 81 | 45 | 22 | 27 | 20 | 10 | 10 | — | — | — | — | — | — | 1 | 15 | 12 | 52 | 40 | 42 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 6 | ENE 3 | SSE 7 | S 11 | SE 7 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 172 | 1 | 230 | 769 | 233 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 32 | 23 | 38 | 10 | 23 | 38 | 10 | 10 | 4 | 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.











