
Surf Forecasts:
Riet River surf forecast from 9 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 5AM (local time) - 3.5ft (1.1m), 18s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 11AM (local time) - 11ft (3.5m), 11s period, SW swell with 2,335 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 5AM (local time) - 2.5ft (0.7m), 13s period with SW swell.
Best Forecast Surf Conditions for Riet River this week:
The surf forecast for Riet River over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 10) at 5AM. The primary swell is predicted to be 0.7m and 13s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Riet River in the next 16 days are 3.5m 11s and forecast to arrive on Wednesday (Sep 16) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Sunday (Sep 13) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 10th Sep) | 2.5ft (0.7m) 13s |
| Best Surf | 5AM (Wed 16th Sep) | 3.5ft (1.1m) 18s |
| Most Powerful | 11AM (Wed 16th Sep) | 11ft (3.5m) 11s |
Table - best surf conditions forecast for Riet River over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let’s talk about the stretch ahead. It’s a bit of a mixed bag, with a slow start, a wild middle, and something promising on the horizon.
The immediate forecast is not looking great. For the first few days, we’ve got a small, weak swell coming in, but it’s fighting against a fresh cross-offshore breeze. The energy is weak (180), and it’s just not going to be worth your time. Thursday and Friday are looking pretty gutless, with poor surf conditions. We’re going to have to sit on our hands for a bit.
Now, the weekend rolls in with a bit more size, but the wind is awful. We're talking a proper onshore blow, especially Saturday and Sunday, with the swell building to around 6ft. The energy jumps up to a moderate 1587, but it's messy and lumpy. This is not a surf you want to paddle into; it’s more of a washing machine. If you're into kitesurfing, this might be your window because it's going to be blown out for paddling.
As we get into the start of the new week, the wind eases a little, but the conditions remain poor. Monday morning is still a write-off. The pickings are slim, and the energy is all over the place. It stays marginal for a couple of days, with a cleaner window on Monday afternoon, but the swell stays small and the quality just isn't there.
Now, hold on to your boards, because Wednesday the 16th is when things get serious. We're looking at a big jump in size, with the swell hitting 12ft and the energy shooting up to a strong 3086. This is a solid, powerful SW groundswell with a period of 11 seconds. The wind will be a cross-off, which is good, but this is well overhead and beyond. This is expert territory only. Anyone who isn't a pro is going to be in way over their head.
There’s a brief couple of days after that where the size drops to the 6-6ft range, but the winds turn onshore and ruin the party. It's frustrating because there's energy, but it's not clean.
Then, we have another monster pulse right around Monday the 21st. The swell is back up to 10ft with a very strong 3196 energy. The problem is, the wind is on it again. This is another one for the experts, but it's going to be messy.
After all that, the energy finally fades out. The last week of the window sees the surf dry up, with small, weak swells getting blown flat by strong onshore winds. It's a bit of a letdown after all that action. The long-range picture is pretty quiet, but these things can change.
Now, looking toward the end of the period, there is one light at the end of the tunnel. On Thursday, September 25th, the forecast shows a new, clean swell rolling in. The wind is forecast to be a *perfect* offshore breeze from the SW, and the surf should be clean. The swell is a modest 3ft from the SSW with a nice, long 14-second period. This is the kind of day that will make you forget about all the blown-out junk. It’s the standout day for me.
The only break on offer here is Riet River. It’s a point break, so that long-period groundswell will wrap in nicely. It’s an inconsistent spot, so don't expect it to be firing all session, but when a clean swell like that lines up with no wind, it'll be worth the wait. It's exposed, so it gets everything, and that SSW direction is right in its wheelhouse. Just know that with a good swell, it can get crowded, so don't expect to have it to yourself.
So, there you have it. A lot of waiting, a couple of big, gnarly days for the brave, and one glassy, clean session at the end. Keep your eye on the 25th. That's your day.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 27°C on Wed night, min 17°C on Fri night). Winds increasing (light winds from the NNE on Wed night, fresh winds from the E by Sat afternoon). | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Mon night. Warm (max 25°C on Mon afternoon, min 16°C on Mon night). Winds decreasing (strong winds from the E on Sat night, light winds from the W by Mon night). | ||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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 13 | SW 13 | SSW 16 | SSW 14 | SW 13 | SW 12 | SW 12 | SSW 11 | SSW 15 | SSW 17 | SSW 15 | SSW 15 | SSW 14 | SSW 13 | SW 13 | SSW 12 | SW 11 | SW 12 | SSW 19 |
Wave Graph | |||||||||||||||||||
172 | 172 | 518 | 947 | 613 | 456 | 325 | 223 | 610 | 1863 | 1572 | 1091 | 659 | 396 | 466 | 218 | 126 | 259 | 716 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | off | cross-on | on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-off | off | off | cross-on | cross |
High Tide | 3:05AM1.55m | 3:25PM1.71m | 3:38AM1.60m | 3:57PM1.77m | 4:09AM1.62m | 4:27PM1.77m | 4:39AM1.59m | 4:55PM1.71m | 5:07AM1.53m | 5:22PM1.62m | 5:33AM1.44m | 5:47PM1.49m | |||||||
Low Tide | 9:04PM0.12m | 9:12AM0.03m | 9:37PM0.03m | 9:42AM-0.03m | 10:08PM-0.00m | 10:12AM-0.04m | 10:37PM0.01m | 10:40AM-0.00m | 11:05PM0.06m | 11:07AM0.07m | 11:31PM0.14m | 11:33AM0.18m | 11:56PM0.25m | ||||||
— | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | |
5:59 | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — | |
mm | — | — | — | 1 | — | — | — | — | — | 1 | 2 | 1 | 2 | — | — | 5 | — | — | — |
Temp °C | 27 | 21 | 21 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 20 | 20 | 21 | 25 | 23 | 23 | 23 | 19 |
Feels °C | 25 | 18 | 17 | 18 | 17 | 16 | 15 | 15 | 14 | 12 | 13 | 18 | 16 | 18 | 22 | 22 | 17 | 19 | 17 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | SSW 14 | SW 13 | SW 12 | SW 12 | SSW 11 | SSW 15 | SSW 17 | SSW 15 | SSW 15 | SSW 14 | SSW 13 | E 10 | E 11 | E 11 | E 10 | E 10 |
329 | 287 | 218 | 947 | 613 | 456 | 325 | 223 | 610 | 1863 | 1572 | 1091 | 659 | 396 | 2089 | 1708 | 815 | 510 | 414 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SSW 16 | ENE 9 | ENE 9 | ENE 9 | SSE 7 | SSE 7 | SSW 21 | SE 12 | S 9 | — | — | — | SSW 12 | SSW 12 | SW 11 | SW 12 | SW 11 |
172 | 172 | 518 | 173 | 146 | 113 | 102 | 93 | 44 | 6 | 15 | — | — | — | 297 | 218 | 126 | 259 | 403 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SSE 9 | SW 12 | SE 11 | S 5 | S 12 | SE 14 | SSW 15 | SE 13 | — | — | — | — | — | SW 13 | — | SSW 16 | SSW 15 | SSW 19 |
23 | 8 | 181 | 5 | 27 | 3 | 8 | 44 | 7 | — | — | — | — | — | 466 | — | 26 | 75 | 716 | |
Wind waves Height (m) Direction Period (s) | — | WSW 4 | SW 5 | SSW 5 | — | SSE 7 | E 5 | ENE 6 | E 6 | E 8 | E 8 | E 9 | E 9 | E 10 | — | — | WSW 5 | — | — |
— | 18 | 58 | 20 | — | 85 | 134 | 256 | 402 | 929 | 1330 | 1698 | 2198 | 2267 | — | — | 8 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 5 | 137 | 124 | 0 | 123 | 243 | 329 | 386 | 567 | 386 | 386 | 386 | 135 | 161 | 5 | 0 | 123 | 331 | 4 |
Best forecast wave conditions in Eastern Cape (South) | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Riet River Surf forecast
The above surf forecast table for Riet River provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Riet River can be found by selecting the local surf guide option on the grey menu. Our Riet River 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 (Riet River) 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 Riet River 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.
Are you planning a holiday in Eastern Cape (South)? If you are looking for accommodation near Riet River, camping, hotels and holiday cottages in Eastern Cape (South), consider staying in Port Alfred which is 5 km (3 miles) away. Other places in and around Eastern Cape (South) where you can find information about places to rent, and car hire include Grahamstown which is 48 km (30 miles) away, Bisho and Fort Beaufort.










