Surf Forecasts:
Riet River surf forecast from 31 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 11PM (local time) - 7ft (2.2m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 11PM (local time) - 18ft (5.5m), 11s period, S swell with 6,224 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 8PM (local time) - 3.5ft (1.1m), 11s 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 Monday (Aug 31) at 8PM. The primary swell is predicted to be 1.1m and 11s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Riet River in the next 16 days are 5.5m 11s and forecast to arrive on Thursday (Sep 03) 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 4.0m 9s period and expected on Monday (Sep 07) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 31st Aug) | 3.5ft (1.1m) 11s |
| Best Surf | 11PM (Tue 1st Sep) | 7ft (2.2m) 13s |
| Most Powerful | 11PM (Thu 3rd Sep) | 18ft (5.5m) 11s |
Table - best surf conditions forecast for Riet River over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve got a mixed bag coming our way for the Riet River stretch over the next couple of weeks. It’s gonna take a bit of patience, but there are a couple of windows where it’ll all come together.
Overall, the pattern starts with a building swell that gets a bit messy, then cleans up for a solid session mid-week. After that, things get blown out and messy for a long stretch, before we see a glimmer of hope further out.
The first real opportunity kicks off on Tuesday morning, September 1st. The swell is coming in at a clean 5 ft from the SW, with a 12-second period. The wind is light and offshore, swinging S at 3 mph, so expect some clean, lined-up sets. The combined energy is pushing into moderate territory (662). The water is sitting at 64°, which is a bit colder than average for this time of year, so you’ll want a decent suit.
The standout window is Wednesday morning, September 2nd. This is the one to circle on the calendar. The swell bumps up to 8 ft from the SSW, with a groundswell period of 14 seconds. Winds are light, cross-offshore from the SW at 9 mph, keeping the faces clean. The energy is pumping hard at 2405, and the quality is described as excellent for experienced surfers. This is a solid, powerful point break wave, but at 8 ft, it’s edging into that territory where you’ll want your wits about you. It’s not for beginners.
Thursday morning, September 3rd, still offers fun waves as the swell drops to 6 ft from the SSW, but the wind shifts and the overall quality is a step down from the peak.
Then we hit a wall. From Friday, September 4th, through to Thursday, September 11th, it’s pretty much a write-off. Strong onshore winds, messy conditions, and a lot of blown-out, lumpy surf. The swell gets huge at times, hitting 13 ft and 12 ft, but with strong cross-onshore winds, it’s going to be a washing machine. Honestly, for a few days there, it’ll be more interesting for the kite surfers than the paddle crew.
After a long, quiet spell, the next flicker of hope appears on Friday morning, September 11th. The swell picks up again to 6 ft from the SSW, with clean cross-offshore winds. It’s a long way out, so temper the expectations, but there’s potential for a good session if the forecast holds.
Alright, that’s the long and short of it. The Wednesday morning, September 2nd session is the one to aim for – a true standout for the experienced crew. The rest of the month is a waiting game.
Catch you in the lineup.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Thu morning, min 15°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the E by Wed night). | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Thu night. Warm (max 21°C on Thu afternoon, min 17°C on Thu night). Mainly near gales. | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 11 | SW 11 | SW 12 | SSW 12 | SSW 13 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSE 11 | SE 10 | SE 9 | ESE 9 | ESE 8 | ESE 8 | SSW 10 | SSW 19 | S 16 | SSW 14 |
Wave Graph | ||||||||||||||||||||
315 | 320 | 660 | 988 | 1949 | 2405 | 1999 | 1173 | 939 | 1343 | 6117 | 2962 | 1970 | 897 | 614 | 484 | 274 | 5302 | 4936 | 2376 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | on | cross-off | cross-off | cross-on | cross-on | on | on | on | on | cross-on | on | cross-on | on |
High Tide | 5:28PM1.69m | 5:40AM1.50m | 6:00PM1.61m | 6:14AM1.39m | 6:35PM1.48m | 6:52AM1.26m | 7:19PM1.32m | 7:44AM1.10m | 8:26PM1.15m | 9:34AM0.98m | 10:52PM1.07m | 12:18PM1.05m | 00:48AM1.17m | |||||||
Low Tide | 11:39PM0.09m | 11:43AM0.09m | 00:13AM0.18m | 12:16PM0.20m | 00:51AM0.31m | 12:55PM0.35m | 1:41AM0.46m | 1:50PM0.51m | 3:08AM0.59m | 3:49PM0.65m | 5:46AM0.59m | 6:29PM0.58m | ||||||||
— | — | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | |
5:52 | — | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 7 | — | — | — | — | — | 1 | 3 | 7 | 4 |
Temp °C | 17 | 16 | 17 | 18 | 16 | 17 | 17 | 19 | 20 | 21 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 17 | 18 |
Feels °C | 15 | 17 | 17 | 17 | 15 | 15 | 15 | 16 | 20 | 19 | 9 | 9 | 9 | 10 | 12 | 12 | 13 | 14 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 12 | SSW 12 | SSW 13 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | ENE 8 | WSW 12 | ENE 10 | S 16 | SSW 9 | SSW 11 | SSW 11 | SSW 10 | SSW 19 | S 16 | SSW 14 |
315 | 320 | 660 | 988 | 1949 | 2405 | 1999 | 1173 | 939 | 99 | 255 | 98 | 21 | 217 | 325 | 313 | 274 | 5302 | 4936 | 2376 | |
Swell 2 Height (m) Direction Period (s) | E 10 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | E 9 | E 8 | — | ENE 6 | — | — | SW 12 | S 16 | S 8 | S 8 | E 10 | E 10 | WSW 10 | — | SE 7 |
192 | 144 | 125 | 118 | 84 | 54 | 36 | — | 56 | — | — | 87 | 46 | 130 | 55 | 55 | 94 | 20 | — | 91 | |
Swell 3 Height (m) Direction Period (s) | S 7 | S 9 | S 9 | — | — | — | — | — | E 8 | — | — | S 20 | SW 10 | S 14 | WSW 11 | ENE 10 | SSW 19 | — | — | — |
45 | 2 | 2 | — | — | — | — | — | 36 | — | — | 8 | 77 | 206 | 12 | 35 | 120 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | ENE 5 | — | SSW 12 | SSE 11 | SE 10 | SE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 7 | ESE 8 | ESE 6 | E 7 |
— | — | — | — | — | — | — | 72 | — | 1343 | 6117 | 2962 | 1970 | 897 | 614 | 484 | 192 | 214 | 210 | 328 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 126 | 0 | 0 | 126 | 110 | 0 | 386 | 142 | 0 | 137 | 335 | 1858 | 3110 | 361 | 483 | 567 | 372 | 149 | 386 | 386 |
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.











