
Surf Forecasts:
Onrus surf forecast from 5 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 11PM (local time) - 10ft (3.0m), 15s period, SW swell with cross-onshore winds.
- Most powerful swell: Wednesday 8 Jul, 11PM (local time) - 10ft (3.0m), 15s period, SW swell with 3,557 kJ wave energy.
- Next surfable swell (1★+): Sunday 5 Jul, 8AM (local time) - 2.5ft (0.8m), 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 Sunday (Jul 05) at 8AM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 1.1m and 8s. 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 15s and forecast to arrive on Wednesday (Jul 08) 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 0.5m 3s period and expected on Tuesday (Jul 07) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 5th Jul) | 2.5ft (0.8m) 14s |
| Best Surf | 11PM (Wed 8th Jul) | 10ft (3.0m) 15s |
| Most Powerful | 11PM (Wed 8th Jul) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Onrus over the next 16 days.
Updates in hr min s Forecast update imminent
Right, let’s break it down. Onrus is the only spot in the picture, a classic reef setup that likes a southwest swell. Inconsistent, but a beauty when it fires. Water’s around 59°F, just a hair cooler than normal.
The week fires up on Sunday morning, July 5th. Small stuff, about 2ft from the southwest, with a light offshore breeze making it glassy. The energy’s weak (353), but it’s a nice way to start.
Sunday afternoon, the swell picks up to 5ft from the west, with a clean cross-offshore wind. Energy’s moderate (733) and the surf is looking very good. Monday morning is a bit mixed – 7ft from the west-southwest with a cross wind, but there’s size.
Now, listen up. From Monday afternoon, July 6th, through to Wednesday morning, July 8th, it’s absolute gold. Solid 7ft to 7ft groundswell from the west-southwest and southwest, with a 11 to 13 second period. And the wind? Glassy or light offshore. This is where Onrus earns its reputation. The combined energy is strong to very strong – between 1080 and 1873. Tuesday is the standout, with glassy conditions and a consistent 7ft swell. These waves will have proper shape and grunt.
Wednesday afternoon, the wind swings onshore with some light rain, and the swell bumps to 8ft, but the quality tanks. From Thursday, July 9th, through Saturday, July 11th, forget it. Strong cross-onshore winds of 15 to 22 mph, lumpy, messy surf up to 8ft. That’s kite-surfing wind, not paddle surfing.
Sunday the 12th is a reset. Swell drops to 4ft to 5ft from the south-southeast, with a cross-offshore breeze and clean lines. Energy’s moderate (957), but the size is less exciting. Monday and Tuesday, July 13th and 14th, bring small clean swells around 2ft to 3ft with glassy winds – ideal for a longboard or a slow, easy session.
There’s a bit of a flat spell mid-week with small, weak swells and onshore breezes. But then, Thursday morning, July 16th, another pulse arrives. A 5ft southwest groundswell with a 14-second period and offshore wind, the energy is massive at 2343. That afternoon, though, it’s too big – 10ft from the south-southwest, expert-only, and the word is it’s simply too much for this break.
Friday and Saturday, July 17th and 18th, are still rideable with 5ft to 7ft and offshore winds, but the quality is a bit off. It fades out after that. So, the honest pick of this whole forecast is Monday afternoon through Wednesday morning, July 6th to 8th. That’s where the magic is.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 14°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed afternoon. Very mild (max 17°C on Wed morning, min 12°C on Wed night). Winds increasing (light winds from the WNW on Wed morning, fresh winds from the ESE by Fri afternoon). | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||||
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 14 | W 9 | WSW 12 | WSW 11 | WSW 11 | WSW 12 | WSW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | S 12 | S 11 | S 11 |
Wave Graph | |||||||||||||||||||||
147 | 332 | 1062 | 996 | 1080 | 1174 | 1082 | 1293 | 1750 | 1285 | 1799 | 3093 | 2571 | 2111 | 2265 | 2177 | 2025 | 1231 | 1174 | 1126 | 683 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross | glassy | off | glassy | glassy | off | off | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 6:43PM1.42m | 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 | ||||||||
Low Tide | 12:19PM0.29m | 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 | ||||||||
7:50 | — | — | 7:50 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | |
— | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | 1 | 4 |
Temp °C | 17 | 19 | 17 | 17 | 18 | 16 | 16 | 17 | 15 | 17 | 15 | 13 | 12 | 13 | 13 | 14 | 15 | 14 | 14 | 14 | 13 |
Feels °C | 14 | 15 | 14 | 14 | 16 | 15 | 15 | 16 | 15 | 16 | 13 | 10 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | W 8 | WSW 8 | WSW 12 | WSW 11 | WSW 11 | WSW 12 | WSW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | S 12 | W 11 | S 11 |
134 | 217 | 1062 | 996 | 1080 | 1174 | 1082 | 1293 | 1750 | 1285 | 1799 | 3093 | 2571 | 2111 | 2265 | 2177 | 2025 | 1231 | 1174 | 21 | 683 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | SE 12 | SE 12 | ESE 11 | SE 11 | SE 11 | SW 22 | SW 20 | SW 18 | SW 17 | SE 10 | — | — | S 16 | — | W 9 | W 11 | W 12 | SW 18 | W 11 |
147 | 161 | 22 | 21 | 12 | 5 | 4 | 73 | 241 | 588 | 536 | 4 | — | — | 5 | — | 2 | 22 | 24 | 12 | 21 | |
Swell 3 Height (m) Direction Period (s) | WSW 10 | SE 12 | WSW 18 | S 8 | ESE 11 | ESE 11 | SW 24 | SE 10 | ESE 10 | ESE 10 | ESE 10 | — | — | — | — | — | — | W 13 | — | SW 18 | SW 18 |
72 | 23 | 31 | 1 | 81 | 45 | 22 | 27 | 20 | 10 | 10 | — | — | — | — | — | — | 14 | — | 12 | 12 | |
Wind waves Height (m) Direction Period (s) | — | W 9 | — | — | — | — | W 11 | — | — | WNW 3 | — | — | — | ESE 3 | E 4 | — | SE 6 | ESE 4 | NE 4 | S 11 | SE 8 |
— | 332 | — | — | — | — | 284 | — | — | 4 | — | — | — | 6 | 13 | — | 295 | 29 | 3 | 1126 | 378 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 221 | 10 | 23 | 23 | 23 | 23 | 45 | 40 | 38 | 10 | 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.










