Fish Boma Surf Break

Lat Long: 34.07° S 22.95° E

Fish Boma Surf Forecast and Surf Report

Issued: 7 pm 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Fish Boma sea temperature is
15.7°C
1.5° 

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


Fish Boma surf forecast from 11 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 11PM (local time) - 10ft (3.0m), 10s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 16 Sep, 5AM (local time) - 11ft (3.5m), 15s period, SW swell with 5,120 kJ wave energy.
  • Next surfable swell (1★+): Saturday 12 Sep, 2AM (local time) - 4.5ft (1.3m), 12s period with SW swell.

Best Forecast Surf Conditions for Fish Boma this week:

The surf forecast for Fish Boma over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 2AM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 1.3m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Fish Boma in the next 16 days are 3.5m 15s and forecast to arrive on Wednesday (Sep 16) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 5s period and expected on Friday (Sep 18) at 2PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 12th Sep)4.5ft (1.3m) 12s
Best Surf11PM (Sun 13th Sep)10ft (3.0m) 10s
Most Powerful 5AM (Wed 16th Sep)11ft (3.5m) 15s

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


The Lowdown

Alright, Rusty here, let's talk about what's in the water.

The next couple of weeks are a mixed bag, with a few real standout windows if you're willing to be patient. The real highlight comes this Saturday morning, September 12th, at Fish Boma, where we've got some serious magic lining up. The water temp is sitting about average for this time of year, so no wetsuit surprises there. You're looking at a solid 5ft swell from the SW, with a long 14-second period – that’s proper groundswell energy, which this reef setup will love. The combined energy is a beefy moderate 1033, but the real story is the wind: a light 3 mph W breeze, glassing the surface up. It’s going to be clean, lined-up, and perfect for intermediate surfers who know the reef. Just be aware the crowds are sometimes an issue here, so get out early to grab your share. The 5ft is a sweet spot – not too big to be intimidating.

We do have some other pulses of swell, but the quality drops off. Saturday afternoon the wind swings onshore, and the size jumps to 6ft with that 16-second period, but the cross-on wind and energy of 2284 (moderate) make it a sloppy mess after the morning session. Sunday, September 13th, gets a bit wild with a 7ft SW swell (3450 energy), but 12 mph ESE wind puts a nasty cross-chop on it. That afternoon the swell hits 12ft from the ESE with a shorter 10-second period (4702 energy) – that’s expert territory, and while the wind is clean, 12ft at a reef with that short period is a big, unruly wall of water. That’s more of a "watch and maybe not" for most of us.

There’s a long quiet stretch from late Sunday right through to the following week. The next real glimmer is Wednesday morning, September 16th, with another 10ft pulse from the SW (3762 energy) and a 14-second period. The wind is light, but it’s onshore and it’s 10ft, so you need to be a solid expert paddler. It’s clean, but big and powerful.

Looking further out to the second week, we get some more size but the conditions don’t cooperate. Late in the month, on Wednesday, September 23rd, a 10ft WSW swell (2841 energy) rolls in, but a moderate 12 mph W wind makes it a choppy, blown-out mess. Not worth your time.

Honestly, for the whole 16-day window, lock in this Saturday morning, September 12th, at Fish Boma. That’s the one. The rest of the period is mostly average to poor with a few big, messy days for experts only.

Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Sat night. Warm (max 23°C on Sun night, min 16°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 22mm), heaviest during Wed afternoon. Warm (max 21°C on Tue afternoon, min 13°C on Wed morning). Wind will be generally light.

Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
4
2
3
3
4
4
2
3
3
2
2
2
4
2
4
3
1
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SW
12
1.4
SW
14
1.9
SW
16
2.2
SW
16
2.1
SW
15
3.5
ESE
10
2.5
ESE
10
2.1
ESE
10
1.9
ESE
10
1.6
E
10
1.5
E
11
1.2
E
11
1.7
SW
16
3
SW
14
2.3
SW
14
2.1
SW
13
1.9
SW
13
1.8
SW
12
1.9
SW
12
Wave Graph
Metric surfscale
Energy kJ
478
825
1694
2291
1810
1917
1286
828
692
530
514
338
1402
3619
2006
1395
1154
884
1042
Wind (km/h)
5
E
5
W
10
SSE
25
E
20
ESE
15
E
10
ENE
10
WSW
5
SSE
5
NE
5
SW
10
SSE
15
WSW
5
SSW
10
S
5
W
5
S
10
SE
5
NNE
Wind State
cross-off
glassy
cross-on
cross-off
cross
cross-off
cross-off
cross-on
cross-on
glassy
cross-on
cross-on
cross-on
on
on
glassy
cross-on
cross-on
off
High Tide
4:06AM1.79m
4:21PM1.95m
4:36AM1.75m
4:50PM1.88m
5:04AM1.68m
5:18PM1.77m
5:32AM1.58m
5:45PM1.63m
5:58AM1.45m
6:11PM1.47m
6:25AM1.31m
6:38PM1.31m
Low Tide
10:05PM-0.01m
10:09AM-0.01m
10:35PM0.01m
10:38AM0.04m
11:02PM0.08m
11:05AM0.12m
11:29PM0.18m
11:31AM0.24m
11:54PM0.31m
11:57AM0.38m
00:21AM0.45m
12:24PM0.53m
00:52AM0.59m
cloud
light rain
part cloud
mod rain
rain showers
cloud
cloud
cloud
light rain
rain showers
clear
clear
rain showers
light rain
mod rain
rain showers
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:31
6:28
6:28
6:26
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:16
6:16
6:17
6:19
6:19
6:20
 mm
1
10
2
1
1
1
4
10
6
Temp °C
16
17
19
17
18
20
23
22
17
17
20
21
16
14
13
15
15
16
14
Feels °C
16
18
19
15
16
20
21
21
17
19
19
20
16
13
12
13
14
13
12
  • 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 Fish Boma Surf forecast

The above surf forecast table for Fish Boma provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Fish Boma can be found by selecting the local surf guide option on the grey menu. Our Fish Boma 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 (Fish Boma) 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 Fish Boma 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 Garden Route? If you are looking for accommodation near Fish Boma, camping, hotels and holiday cottages in Garden Route, consider staying in Knysna which is 10 km (6 miles) away. Other places in and around Garden Route where you can find information about places to rent, and car hire include Plettenberg Bay which is 39 km (24 miles) away, George, Mossel Bay and Oudtshoorn.

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