
Surf Forecasts:
Riet River surf forecast from 14 Sep 2026:
- Best quality surf: Monday 14 Sep, 11PM (local time) - 3ft (0.9m), 12s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 11AM (local time) - 10ft (3.0m), 11s period, SW swell with 2,283 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 11PM (local time) - 3ft (0.9m), 12s period with SSW 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 Monday (Sep 14) at 11PM. The primary swell is predicted to be 0.9m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Riet River in the next 16 days are 3.0m 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 4.5m 10s period and expected on Saturday (Sep 19) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 14th Sep) | 3ft (0.9m) 12s |
| Best Surf | 11PM (Mon 14th Sep) | 3ft (0.9m) 12s |
| Most Powerful | 11AM (Wed 16th Sep) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Riet River over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s be straight with you: the next couple of weeks at Riet River are going to test your patience. There’s a rough start, a few glimmers, and one clear stand-out window, but you’ll need to pick your moments.
The first real surf on offer kicks off Monday afternoon, September 14th. We’ve got a clean 3ft SSW swell with a 13-second period, but the energy is weak (307) and the water is a frigid 61°, a whopping 5° colder than normal for this time of year – that’s a serious anomaly, so bring the thickest rubber you own. The wind is a cross-offshore breeze at 12 mph, which keeps things tidy, but the surf itself is pretty marginal and the spot is inconsistent anyway. You might get a few, but I wouldn’t call it a session to write home about.
Tuesday the 15th drops a touch to 3ft with an 11-second period, but the morning has a clean offshore wind (12 mph from the W) and the wave state is moderate offshore and clean. It’s surfable but very ordinary, so only the keenest are getting wet. The afternoon goes cross-shore and weak, so forget it.
Then Wednesday the 16th is where things get heavy – and not necessarily in a good way. The swell jumps to 10ft from the SW with an 11-second period, and the energy is strong at 2283. That’s a big, powerful wave. But with a 22 mph cross-offshore wind, it’s going to be a raw, challenging day. This is expert territory – over 8ft is only for the experienced. Thursday the 17th hangs around 5-7ft from the SSW, but the wind swings cross-on and then onshore, with rain. It’s messy and marginal, a far cry from what you’d want.
Friday the 18th through Sunday the 20th is a write-off. Onshore winds blasting at 22-25 mph, rain, and poor conditions. The swell drops off to 3ft by the weekend, but the wind is still howling. If you’re a kite surfer, this might look fun, but for a paddle surfer, it’s hopeless. There’s a gap of a few days here where I wouldn't even bother looking at the ocean.
Now, here’s the gem. Tuesday morning, September 22nd. The wind dies completely – glassy, 3 mph from the SE, with a clean 5ft SSW swell at a 9-second period. The energy is moderate (610), and the conditions are rated as "expect very good surf conditions." This is your window. It’s the standout of the whole period. Get out there early.
Wednesday the 23rd morning is the second best option. A clean 6ft SSW swell (12 seconds) with a light cross-offshore breeze (6 mph from SW). Energy is solid at 1145, and it’s rated as "excellent surf conditions for experienced surfers." Still a bit of size for the average punter, but a proper session.
After that, it’s a slow decline. The rest of the week into the following Monday sees onshore winds, building to 28 mph, with lumpy and poor conditions. The swell stays small and the wind ruins any chance of a clean wave. There’s another gap of about three days with nothing worth your time.
The final week, starting September 28th, brings another pulse – Monday afternoon sees 8ft from the SW, but with a 28 mph onshore wind, it’s a complete mess. Tuesday the 29th morning drops to 6ft but the onshore wind is still too strong. Don’t even think about it.
So, to sum it up: if you’re a patient surfer, you’ve got one clear morning on September 22nd (the best of the lot) and a solid backup on Wednesday the 23rd. Everything else is either too small, too windy, or a combination of both. The long-range stuff looks promising but that far out, it’s just a tease.
Stay warm, stay sharp.
Rusty
Short Range ForecastModerate rain (total 18mm), heaviest on Wed afternoon. Warm (max 24°C on Tue morning, min 12°C on Thu morning). Winds increasing (light winds from the NNW on Mon night, fresh winds from the SW by Wed morning). | Days 5-7 Weather SummaryHeavy rain (total 68mm), heaviest during Thu afternoon. Warm (max 21°C on Sun morning, min 12°C on Thu afternoon). Mainly strong winds. | |||||||||||||||||||
Mon 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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 13 | SSW 12 | SSW 11 | SW 11 | SW 11 | SW 11 | SSW 11 | SSW 9 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | ESE 8 | SSW 15 | SSW 13 | SSW 12 | SW 12 | SW 11 | SSW 14 | SSW 8 |
Wave Graph | ||||||||||||||||||||
307 | 222 | 160 | 123 | 286 | 2283 | 1267 | 537 | 942 | 1342 | 816 | 646 | 1019 | 376 | 458 | 264 | 199 | 185 | 328 | 1190 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross | cross-off | cross-off | cross | cross-on | cross-on | on | on | on | on | on | on | on | glassy | off | off | cross-off |
High Tide | 5:22PM1.62m | 5:33AM1.44m | 5:47PM1.49m | 5:59AM1.33m | 6:12PM1.35m | 6:24AM1.21m | 6:37PM1.21m | 6:51AM1.07m | 7:06PM1.06m | 7:36AM0.93m | 8:24PM0.93m | 12:20PM0.91m | 00:31AM0.98m | |||||||
Low Tide | 11:31PM0.14m | 11:33AM0.18m | 11:56PM0.25m | 11:59AM0.30m | 00:22AM0.38m | 12:25PM0.44m | 00:51AM0.51m | 12:54PM0.59m | 1:34AM0.65m | 1:45PM0.73m | 4:33AM0.74m | 6:24PM0.75m | ||||||||
— | — | 6:11 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | |
6:01 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:06 | — | — | 6:06 | — | |
mm | — | — | — | — | — | — | 5 | 6 | 7 | 16 | 17 | 10 | 7 | 6 | 6 | 5 | 1 | — | 1 | 9 |
Temp °C | 21 | 21 | 24 | 23 | 19 | 16 | 15 | 16 | 12 | 13 | 15 | 15 | 17 | 17 | 17 | 19 | 19 | 21 | 22 | 18 |
Feels °C | 22 | 21 | 20 | 19 | 18 | 10 | 9 | 12 | 9 | 10 | 9 | 8 | 10 | 10 | 11 | 14 | 17 | 17 | 18 | 14 |
Swell 1 Height (m) Direction Period (s) | E 10 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | SSW 9 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SW 11 | SSW 13 | SSW 12 | E 11 | E 11 | E 10 | E 10 |
1716 | 1904 | 1170 | 734 | 530 | 346 | 250 | 537 | 942 | 1342 | 816 | 646 | 585 | 283 | 458 | 264 | 3160 | 2095 | 1453 | 557 | |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 12 | SSW 11 | SW 11 | SW 11 | — | SSW 15 | SSW 13 | SSW 8 | E 10 | — | — | — | SSW 15 | SW 18 | SSW 16 | SW 12 | SW 11 | SSW 14 | — |
307 | 222 | 160 | 123 | 286 | — | 246 | 434 | 223 | 200 | — | — | — | 376 | 12 | 51 | 199 | 185 | 328 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 4 | SSW 16 | SW 18 | — | SW 15 | E 10 | E 10 | — | — | — | — | — | — | — | SSW 15 | SSW 18 | SSW 16 | — |
— | — | 6 | 26 | 78 | — | 479 | 255 | 212 | — | — | — | — | — | — | — | 42 | 31 | 153 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | SW 6 | — | SW 11 | SSW 11 | — | SE 7 | SE 7 | ESE 8 | ESE 7 | ESE 8 | E 9 | E 10 | E 10 | E 11 | — | WSW 4 | SSW 8 |
— | — | — | 15 | — | 2283 | 1267 | — | 189 | 341 | 462 | 554 | 1019 | 1337 | 3555 | 3282 | 4071 | — | 15 | 1190 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 125 | 0 | 0 | 203 | 0 | 332 | 386 | 167 | 123 | 386 | 361 | 560 | 724 | 494 | 253 | 386 | 0 | 88 | 88 | 276 |
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.










