Surf Forecasts:
Groenvlei surf forecast from 22 Aug 2026:
- Best quality surf: Saturday 22 Aug, 11PM (local time) - 6ft (1.8m), 8s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 2PM (local time) - 8ft (2.5m), 15s period, SW swell with 3,011 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 5PM (local time) - 5ft (1.5m), 12s period with SW swell.
Best Forecast Surf Conditions for Groenvlei this week:
The surf forecast for Groenvlei over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 22) at 5PM. The primary swell is predicted to be 1.5m and 12s period with a secondary swell of 0.1m and 8s. Another secondary swell of 1.1m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Groenvlei in the next 16 days are 2.5m 15s and forecast to arrive on Tuesday (Aug 25) 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 1.2m 5s period and expected on Saturday (Aug 29) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sat 22nd Aug) | 5ft (1.5m) 12s |
| Best Surf | 11PM (Sat 22nd Aug) | 6ft (1.8m) 8s |
| Most Powerful | 2PM (Tue 25th Aug) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Groenvlei over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 17°C on Sat afternoon, min 11°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Thu night, min 11°C on Tue morning). Winds decreasing (fresh winds from the ESE on Wed afternoon, calm by Thu afternoon). | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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) | SSW 11 | SW 12 | SW 12 | SW 11 | SW 13 | SW 12 | SW 12 | SW 11 | SSW 15 | SW 14 | SW 15 | S 15 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | S 11 | S 11 | E 10 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 739 | 594 | 1055 | 990 | 1173 | 854 | 638 | 492 | 1117 | 2633 | 2449 | 1200 | 1368 | 1098 | 1016 | 754 | 693 | 639 | 493 | 489 | 346 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | on | glassy | cross | cross | glassy | cross-on | on | cross-on | cross-on | cross-on | cross | glassy | glassy | glassy | on | cross-on | cross-off |
High Tide | 12:37PM1.06m | 00:51AM1.18m | 1:36PM1.21m | 1:40AM1.32m | 2:10PM1.37m | 2:14AM1.46m | 2:39PM1.52m | 2:44AM1.58m | 3:05PM1.66m | 3:12AM1.68m | 3:32PM1.78m | 3:39AM1.75m | 3:58PM1.87m | 4:07AM1.79m | |||||||
Low Tide | 6:40PM0.80m | 7:27AM0.65m | 7:40PM0.67m | 8:02AM0.50m | 8:15PM0.52m | 8:30AM0.36m | 8:44PM0.39m | 8:55AM0.23m | 9:11PM0.27m | 9:20AM0.13m | 9:39PM0.17m | 9:46AM0.05m | 10:06PM0.09m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — |
 | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 16 | 16 | 16 | 13 | 16 | 16 | 13 | 14 | 15 | 14 | 18 | 20 | 16 | 21 | 20 | 22 | 25 | 27 | 32 |
Feels °C | 11 | 13 | 15 | 15 | 14 | 13 | 15 | 15 | 13 | 13 | 14 | 13 | 16 | 15 | 13 | 20 | 20 | 21 | 23 | 24 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SW 12 | SW 12 | SW 11 | SW 13 | SW 12 | SW 12 | SW 11 | SSW 15 | SW 14 | SW 15 | S 15 | SSW 12 | SSW 12 | SSW 12 | ESE 8 | SSW 11 | E 9 | ESE 10 | S 11 | S 11 |
| kJ | 739 | 594 | 1055 | 990 | 1173 | 854 | 638 | 492 | 1117 | 2633 | 2449 | 1200 | 1368 | 1098 | 1016 | 339 | 693 | 430 | 378 | 418 | 302 |
Swell 2 Height (m) Direction Period (s) | ESE 5 | E 8 | SW 16 | SW 14 | — | — | SE 11 | SSW 14 | SW 11 | — | — | SW 13 | S 16 | S 16 | S 16 | SSW 12 | ESE 8 | S 11 | S 11 | SW 16 | SW 14 |
| kJ | 4 | 1 | 11 | 128 | — | — | 5 | 236 | 593 | — | — | 859 | 635 | 509 | 81 | 754 | 338 | 639 | 493 | 206 | 346 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | — | — | E 10 | SE 10 | SE 11 | — | — | E 13 | SW 13 | SW 13 | — | S 15 | S 15 | S 15 | S 15 | WSW 11 | ESE 6 |
| kJ | 1 | 5 | 1 | 1 | — | — | 2 | 4 | 5 | — | — | 3 | 45 | 45 | — | 163 | 218 | 215 | 110 | 45 | 48 |
Wind waves Height (m) Direction Period (s) | W 4 | SW 6 | — | — | — | — | — | — | — | — | — | — | ESE 5 | ESE 7 | ESE 7 | — | — | — | — | E 10 | NNW 5 |
| kJ | 35 | 103 | — | — | — | — | — | — | — | — | — | — | 88 | 686 | 468 | — | — | — | — | 489 | 52 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 58 | 0 | 0 | 20 | 2 | 0 | 20 | 20 | 0 | 56 | 2 | 2 | 2 | 360 | 2 | 0 | 0 | 0 | 2 | 2 | 17 |
Best forecast wave conditions in Garden Route | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Groenvlei 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 Groenvlei Surf forecast
The above surf forecast table for Groenvlei provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Groenvlei can be found by selecting the local surf guide option on the grey menu. Our Groenvlei 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 (Groenvlei) 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 Groenvlei 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.
Groenvlei is 26 km (16 miles) from the city of Knysna. If you plan a holiday in Garden Route, look for hotels and other accommodation in Knysna. Knysna has rooms for a wide range of budgets as well as car hire and transport links.
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