Surf Forecasts:
Rivermouth surf forecast from 13 Aug 2026:
- Best quality surf: Monday 17 Aug, 2AM (local time) - 5ft (1.6m), 11s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 8PM (local time) - 5.5ft (1.7m), 11s period, S swell with 747 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 11PM (local time) - 5.5ft (1.7m), 8s period with E swell.
Best Forecast Surf Conditions for Rivermouth this week:
The surf forecast for Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 14) at 11PM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 0.3m and 15s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rivermouth in the next 16 days are 1.7m 11s and forecast to arrive on Wednesday (Aug 19) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 8s period and expected on Saturday (Aug 15) at 2AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 14th Aug) | 5.5ft (1.7m) 8s |
| Best Surf | 2AM (Mon 17th Aug) | 5ft (1.6m) 11s |
| Most Powerful | 8PM (Wed 19th Aug) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Rivermouth over the next 16 days.
The Lowdown
G'day, I'm Rusty. Look, I ain't gonna lie to ya – this next fortnight at Rivermouth is a bit of a test of patience. We've got a real dry spell for the best part of ten days, with nothing worth paddling out for. The wind is all over the shop, the swell is messy, and it's just a whole lot of "poor surf conditions." The water is hanging at about 64.9°, which is a bit colder than we'd normally expect for this time of year – a good couple of degrees below average, so you'll want that hood or a decent winter steamer.
The first real sign of life doesn't show up until Saturday, the 22nd of August. The morning session is the pick of that weekend, with a tiny 2.3ft SSW groundswell pushing in with a very long 13-second period, and mate, the wind is dead flat – glass. That combined energy is moderate at 345. It might be small, but for a beginner-friendly setup that is "very consistent," it could offer some fun, clean little waves. Sunday morning, the 23rd, also has a bit of size with 4.6ft SSW swell at 15 seconds, giving us strong wave energy (1173). But it's coming in with a light cross-onshore, so it won't be as clean as Saturday. Still, something to watch.
Now, hold onto your leggies, because the standout is shaping up for Wednesday, the 26th of August. That morning is the one. We've got a solid 7.5ft easterly swell running at a 10-second period, building strong wave energy (1048), and the wind is light from the NNW – cross-offshore. The report explicitly says it's "excellent surf conditions for experienced surfers." This isn't for the grommets or the weekend warriors; at over 8ft, it's expert territory. The swell direction is right out of the east, which matches the optimum direction for the spot. The afternoon holds similar size at 7.5ft (1098) but the wind swings cross-shore, so you'll want to be in the water first thing. That Wednesday morning is the clear winner in this outlook, it's a ripper.
We'll get a few smaller, cleaner windows here and there, but if you're a keen surfer, you point your board at the 26th. The second week is a bit hit-and-miss, with that Wednesday being the prize. That's it from me.
Short Range ForecastMostly dry. Warm (max 23°C on Fri afternoon, min 13°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 15°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | E 8 | SSW 20 | SSW 18 | E 7 | E 8 | E 8 | E 8 | E 10 | E 10 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | SSW 7 | SSW 10 | S 12 | S 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 265 | 339 | 270 | 235 | 378 | 307 | 198 | 113 | 100 | 206 | 199 | 577 | 367 | 296 | 194 | 151 | 115 | 127 | 501 | 615 | 533 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross-off | cross | cross-on | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross | cross-off | cross-on | on | cross-on |
High Tide | 4:25PM1.74m | 4:35AM1.64m | 4:59PM1.76m | 5:08AM1.60m | 5:31PM1.73m | 5:40AM1.53m | 6:02PM1.64m | 6:09AM1.44m | 6:31PM1.52m | 6:38AM1.32m | 6:59PM1.38m | 7:07AM1.19m | 7:30PM1.23m | ||||||||
Low Tide | 10:09AM-0.03m | 10:33PM0.04m | 10:42AM-0.05m | 11:07PM0.05m | 11:13AM-0.02m | 11:40PM0.11m | 11:43AM0.05m | 00:10AM0.19m | 12:12PM0.16m | 00:40AM0.30m | 12:40PM0.29m | 1:10AM0.42m | 1:09PM0.43m | 1:44AM0.55m | |||||||
 | |  | |  |  | | | | | | | | | | | | |  |  |  | |
 | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — |
 | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 4 |
Temp °C | 18 | 19 | 16 | 21 | 23 | 18 | 22 | 22 | 18 | 25 | 26 | 22 | 19 | 20 | 16 | 21 | 20 | 17 | 16 | 15 | 15 |
Feels °C | 13 | 14 | 12 | 17 | 19 | 16 | 20 | 22 | 18 | 21 | 22 | 21 | 17 | 19 | 17 | 19 | 17 | 14 | 13 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 20 | SSW 18 | E 7 | SSW 15 | E 8 | E 8 | E 7 | E 7 | E 7 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | SSW 10 | E 9 | S 10 |
| kJ | 255 | 339 | 270 | 235 | 93 | 307 | 198 | 86 | 88 | 103 | 199 | 577 | 367 | 296 | 194 | 151 | 115 | 79 | 312 | 40 | 533 |
Swell 2 Height (m) Direction Period (s) | SSW 22 | SSW 16 | S 9 | SSW 16 | S 9 | SSW 15 | SSW 14 | E 10 | E 10 | E 11 | SW 12 | SSW 12 | SSW 11 | SSW 10 | SSW 12 | SW 8 | SW 14 | SSW 13 | E 9 | — | ENE 9 |
| kJ | 265 | 138 | 15 | 99 | 2 | 43 | 21 | 113 | 100 | 206 | 6 | 29 | 11 | 38 | 54 | 18 | 47 | 34 | 40 | — | 25 |
Swell 3 Height (m) Direction Period (s) | S 10 | S 10 | S 12 | S 9 | S 11 | S 8 | S 13 | SSW 14 | SSW 13 | SSW 12 | SW 15 | S 16 | SSW 15 | SSW 14 | S 3 | SSW 15 | — | — | — | — | — |
| kJ | 31 | 17 | 3 | 6 | 2 | 1 | 3 | 18 | 17 | 15 | 9 | 5 | 23 | 41 | 1 | 44 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 8 | E 6 | E 7 | ENE 7 | E 8 | ENE 8 | — | — | ENE 7 | ENE 7 | E 7 | WSW 3 | SW 4 | SW 4 | — | — | SSW 4 | SSW 7 | SSW 10 | S 12 | — |
| kJ | 259 | 261 | 217 | 355 | 378 | 539 | — | — | 128 | 151 | 155 | 3 | 9 | 8 | — | — | 29 | 127 | 501 | 615 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 332 | 433 | 182 | 76 | 276 | 0 | 1 | 12 | 0 | 76 | 260 | 0 | 168 | 1 | 3 | 31 | 335 | 1 | 4 | 293 | 328 |
Best forecast wave conditions in Eastern Cape - Wild Coast | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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Information about the Rivermouth Surf forecast
The above surf forecast table for Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Rivermouth 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 (Rivermouth) 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 Rivermouth 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 - Wild Coast? If you are looking for accommodation near Rivermouth, camping, hotels and holiday cottages in Eastern Cape - Wild Coast, consider staying in East London which is 26 km (16 miles) away. Other places in and around Eastern Cape - Wild Coast where you can find information about places to rent, and car hire include Butterworth which is 59 km (37 miles) away, Stutterheim and Bisho.
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