Rivermouth Surf Break

Lat Long: 32.86° S 28.11° E

Rivermouth Surf Forecast and Surf Report

Issued: 7 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rivermouth sea temperature is
17.3°C
2.4° 

Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Rivermouth surf forecast from 14 Sep 2026:

  • Best quality surf: Monday 14 Sep, 5PM (local time) - 10ft (3.0m), 10s period, E swell with cross-shore winds.
  • Most powerful swell: Saturday 19 Sep, 2PM (local time) - 15ft (4.5m), 11s period, E swell with 4,720 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 5PM (local time) - 10ft (3.0m), 10s 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 Monday (Sep 14) at 5PM. The primary swell is predicted to be 3.0m and 10s period with a secondary swell of 0.6m and 13s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Rivermouth in the next 16 days are 4.5m 11s and forecast to arrive on Saturday (Sep 19) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 10s period and expected on Monday (Sep 14) at 5PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Mon 14th Sep)10ft (3.0m) 10s
Best Surf 5PM (Mon 14th Sep)10ft (3.0m) 10s
Most Powerful 2PM (Sat 19th Sep)15ft (4.5m) 11s

Table - best surf conditions forecast for Rivermouth over the next 16 days.


The Lowdown

Alright, let’s get into it.

The ocean’s been all over the place lately, but the story for this stretch is pretty clear: we’ve got a solid run of swell, but the winds and the size are gonna make things tricky for a while. Most of the action is too big for Rivermouth, and the conditions aren’t doing us any favors. But there are a couple of windows where it all lines up, and those are the ones to chase.

Right off the bat, Monday the 14th has some serious juice—11.5ft of east swell with a 10-second period. The energy is strong (combined energy of 3761), but that’s just too much for this break, especially with a cross-shore breeze. Same deal in the afternoon, still overhead at 10ft. It’s a no-go for surfing; you’d be fighting for your life out there.

Tuesday the 15th drops a bit to 6.2ft, but it’s marginal at best. Light cross-shore wind, but the tide and quality just aren’t there. Wednesday gets chopped up with stronger winds and messy conditions. Honestly, from the 14th through the 19th, it’s mostly too big, too windy, or just plain poor. There’s a real rough patch on Saturday the 19th with 13ft and fresh onshore winds – that’s not even worth thinking about.

Then we get our first real standout. Sunday the 20th, morning: 10ft of east-southeast swell, still a touch big, but the wind is light, cross-offshore, and it’s clean. The energy is still strong (1951), and while it might be pushing it for the average surfer, for the crew who knows this break, that’s a proper session. The afternoon is still rideable at 8.2ft, but it’s a bit more marginal.

After that, we slip back into a poor run. Monday the 21st is messy with onshore winds, and the swell swings around to the south, which isn't ideal for this spot. Through the 22nd to the 25th, there’s surf, but it’s mostly lumpy, crossed-up, or just not lining up. The winds are all over the place, and the quality is down.

The second week gets quieter and more inconsistent. There’s a tiny window on Saturday the 26th with 5ft but it’s onshore and weak. Sunday the 27th is small and mushy. By Monday the 28th, the swell just fades away – 1.6ft, no energy, nothing doing. Tuesday the 29th brings a bit more size but with a cross-onshore wind and marginal conditions.

So, looking at the whole 16 days, the standout is clearly Sunday morning on the 20th. 10ft of east-southeast groundswell, clean light cross-offshore wind, and solid energy. It’s big, so it’s for the experienced crew, but it’s the best of the lot. The other slim pickings are just not worth getting wet for.

Keep an eye on that long-range south swell around the 22nd-24th, but the winds look like they’ll mess it up. As it stands, this isn’t a week for the faint-hearted at Rivermouth. It’s either too big or too messy. But that Sunday morning... that’s the one.

Short Range Forecast

Heavy rain (total 22mm), heaviest during Wed night. Warm (max 25°C on Tue morning, min 13°C on Wed night). Winds increasing (calm on Tue morning, fresh winds from the SW by Wed afternoon).

Days 4-6 Weather Summary

Heavy rain (total 105mm), heaviest during Sat morning. Warm (max 20°C on Sat night, min 13°C on Thu morning). Winds decreasing (fresh winds from the ENE on Sat afternoon, light winds from the N by Sat night).

Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
!
3
2
1
2
0
0
1
1
0
0
0
0
0
0
0
!
!
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
E
10
3
E
10
2.5
E
11
1.9
E
11
1.7
E
10
1.5
E
10
1.2
E
10
1.9
SSW
10
1.6
S
7
0.9
SSW
15
1.1
SSW
13
2.5
ESE
8
2.5
ESE
8
3
ESE
8
3
E
9
3.5
E
10
4
ESE
11
4
E
11
3
ESE
11
2.5
ESE
11
1.9
ESE
10
Wave Graph
Metric surfscale
Energy kJ
2081
1838
1606
810
590
441
279
692
240
326
451
722
823
1121
1553
2548
3692
3969
1905
1348
712
Wind (km/h)
20
NE
15
ENE
5
E
5
SSW
10
ENE
10
N
30
SW
30
SW
15
S
10
ESE
20
SE
20
ESE
25
E
25
E
25
ENE
25
ENE
35
ENE
20
NE
10
NNE
15
WSW
25
WSW
Wind State
cross
cross
cross-on
cross
cross-on
cross-off
cross
cross
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
High Tide
5:23PM1.64m
5:34AM1.47m
5:48PM1.52m
5:59AM1.36m
6:12PM1.38m
6:24AM1.23m
6:37PM1.23m
6:50AM1.09m
7:05PM1.08m
7:30AM0.95m
8:11PM0.94m
12:16PM0.91m
00:32AM0.98m
Low Tide
11:08AM0.06m
11:31PM0.14m
11:34AM0.17m
11:56PM0.25m
12:00PM0.29m
00:22AM0.37m
12:25PM0.43m
00:50AM0.51m
12:54PM0.58m
1:31AM0.65m
1:40PM0.73m
4:11AM0.75m
6:20PM0.77m
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
light rain
heavy rain
mod rain
heavy rain
heavy rain
heavy rain
heavy rain
mod rain
heavy rain
light rain
rain showers
clear
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:05
6:03
6:03
6:01
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:58
5:58
5:59
6:00
6:00
6:00
6:01
 mm
1
21
7
14
26
15
11
7
19
5
1
5
5
Temp °C
23
24
23
25
22
20
19
19
15
13
13
14
15
17
17
16
18
20
24
23
19
Feels °C
23
24
24
24
22
21
15
14
13
11
11
11
11
13
13
14
14
18
24
23
16
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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