Fish Boma Surf Break

Lat Long: 34.07° S 22.95° E

Fish Boma Surf Forecast and Surf Report

Issued: 7 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Fish Boma sea temperature is
15.8°C
1.4° 

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 13 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 11PM (local time) - 13ft (4.0m), 10s period, E swell with cross-offshore winds.
  • Most powerful swell: Sunday 13 Sep, 11PM (local time) - 13ft (4.0m), 10s period, E swell with 3,144 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 8PM (local time) - 11ft (3.5m), 10s period with ESE 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 Sunday (Sep 13) at 8PM. The primary swell is predicted to be 3.5m and 10s period with a secondary swell of 1.6m and 14s. 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 4.0m 10s and forecast to arrive on Sunday (Sep 13) at 11PM. Winds are predicted to be cross-offshore 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 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sun 13th Sep)11ft (3.5m) 10s
Best Surf11PM (Sun 13th Sep)13ft (4.0m) 10s
Most Powerful11PM (Sun 13th Sep)13ft (4.0m) 10s

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


The Lowdown

Alright, Rusty here, let's have a look at what's on the table for Fish Boma.

First up, the water's running a bit cooler than usual for this time of year, about 60°, so you might want a slightly thicker wettie.

We've got a decent run of surf starting this Sunday, September 13th, but it's not all smooth sailing. The standout window opens on Sunday morning with a solid 7ft SSW groundswell, a 15-second period, and cross-off winds from the east. That’s going to produce some real clean lines with serious power – combined swell energy is pumping at 2761 (strong to very strong). This one is for the experienced crew only, as it’s a bit hefty and the reef at Fish Boma can be unforgiving. The crowds might show up though, so get in early.

Sunday afternoon sees the swell jump to 10ft, but it's a shorter-period ESE swell (9 seconds) and the wind picks up, making it a bit more of a handful and only marginal.

Monday and Tuesday are a bit of a write-off with onshore winds and messy conditions, though Tuesday morning does offer a brief moment of glass with a 5ft E swell. The real next highlight is a solid window from Saturday, September 19th, into Sunday, September 20th. Saturday afternoon brings a 10ft ESE swell with clean cross-off winds – a big, clean wall for the taking. Then Sunday morning, September 20th, is a beauty: glassy conditions, 8ft ESE swell at 9 seconds, and moderate wave energy (2396). It's clean, it's punchy, and it's a great morning session.

After that, the second week gets a bit inconsistent. There's a brief glassy window on Monday, September 28th, with an 8ft SW swell and excellent conditions, but you're looking at a long wait. Most of the days between September 21st and 27th are dominated by onshore winds, cross-chop, or just poor quality surf. There are a few moments, like Saturday afternoon the 26th with a 10ft WSW swell, but the wind and conditions aren't cooperating for a top-shelf paddle session. Honestly, that setup on the 26th looks more like it's built for the kite crew than for a traditional surf.

All in all, lock in Sunday morning the 13th and Sunday the 20th as your best bets. The long-range window on the 28th is promising, but it's a way off, so don't bank on it yet.

- Rusty

Short Range Forecast

Moderate rain (total 17mm), heaviest on Tue night. Warm (max 21°C on Tue afternoon, min 14°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 21mm), heaviest during Wed afternoon. Very mild (max 17°C on Fri afternoon, min 13°C on Wed afternoon). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
3
4
2
3
4
3
3
2
2
3
4
3
2
3
1
2
4
3
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
SSW
15
3
ESE
9
3
ESE
10
2.4
ESE
10
2.2
ESE
10
1.9
E
11
1.6
E
11
1.3
E
11
1.3
SW
16
2.4
SW
14
2.4
SW
14
1.8
SW
13
1.7
SW
13
1.7
SW
12
1.6
SW
12
1.5
SW
11
1.8
SW
13
1.6
SW
12
1.5
SW
12
3
ESE
8
2.5
ESE
9
Wave Graph
Metric surfscale
Energy kJ
1714
1624
1961
1156
980
846
617
418
853
2318
2125
1053
897
800
628
563
1102
799
636
1076
1060
Wind (km/h)
15
E
15
ESE
10
N
10
WSW
10
WSW
10
NNE
5
WSW
5
E
10
SSW
15
SSW
10
S
5
NW
10
SE
15
ESE
15
ENE
20
ESE
25
ESE
10
NE
10
ESE
25
E
10
NE
Wind State
cross-off
cross-off
off
cross-on
cross-on
off
glassy
cross-off
on
on
on
glassy
cross
cross
cross-off
cross
cross
cross-off
cross
cross-off
off
High Tide
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
6:56AM1.16m
7:13PM1.15m
8:00AM1.01m
9:23PM1.02m
Low Tide
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
12:56PM0.68m
1:44AM0.74m
2:09PM0.83m
light rain
cloud
cloud
light rain
light rain
rain showers
clear
part cloud
light rain
mod rain
mod rain
rain showers
part cloud
rain showers
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:31
6:28
6:28
6:26
6:24
6:24
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:16
6:17
6:19
6:19
6:20
6:21
6:22
 mm
4
1
3
5
4
10
9
1
1
Temp °C
18
20
20
20
17
16
20
21
18
14
14
13
15
16
14
16
17
15
17
20
17
Feels °C
17
19
20
19
17
17
19
20
17
12
11
11
12
13
12
12
12
11
14
15
14
  • Map Icons:
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  • 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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