Fish Boma Surf Break

Lat Long: 34.07° S 22.95° E

Fish Boma Surf Forecast and Surf Report

Issued: 1 am 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Fish Boma sea temperature is
14.2° C
2.9° 

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 19 Aug 2026:

  • Best quality surf: Thursday 20 Aug, 8AM (local time) - 10ft (3.0m), 13s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 20 Aug, 11AM (local time) - 11ft (3.5m), 13s period, SSW swell with 4,102 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 5AM (local time) - 8ft (2.5m), 13s 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 Wednesday (Aug 19) at 5AM. The primary swell is predicted to be 2.5m and 13s period with a secondary swell of 0.4m and 10s. 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 13s and forecast to arrive on Thursday (Aug 20) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Wednesday (Aug 26) at 2AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Wed 19th Aug)8ft (2.5m) 13s
Best Surf 8AM (Thu 20th Aug)10ft (3.0m) 13s
Most Powerful11AM (Thu 20th Aug)11ft (3.5m) 13s

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


The Lowdown

Alright folks, Rusty here. Let’s cut to it. We've got one main reef in the spotlight for this stretch, and it's going to be a bit of a rollercoaster. The bottom line is the swell is there, but the wind is going to call the shots for most of it.

The pattern is a good run of SW groundswell, but we'll be dodging onshores for a lot of it. There are two standout windows you need to circle on the calendar, especially that one in early September.

We get going on Wednesday the 19th, and honestly, it's a pass. There's a solid 8-foot of SW swell in the water, but that WSW wind is making it a mess. The energy is moderate, around 1995, but it's rippled and not clean. We're sitting this one out.

Thursday the 20th brings more size, pushing 11 feet in the morning. The energy is strong, hitting 4316, and it's a bit more south in the swell. But the wind is still on the cross-onshore, so it's lumpy. Afternoon lightens up a touch, but it's still not looking inviting.

Our first real chance is Friday morning, the 21st. The swell eases to a more manageable 7 feet, and the wind swings to a clean cross-offshore from the east. The energy is still solid at 1256. Fish Boma should be showing some shape here. It's the start of a better run, but not the best of it.

Saturday the 22nd is a complete wipeout. The wind goes onshore, picks up, and ruins everything. Morning is poor with small 5-foot waves, and the afternoon bumps back up to 8 feet, but it's chopped out. Don't bother.

Now for your first clear call. Sunday the 23rd. The wind dies completely, and the ocean turns to glass. We have a strong 10-foot SW groundswell with a 13-second period. The energy is pumping, at 3057. It's going to be powerful and clean, definitely one for the experienced surfers. The direction is right on for Fish Boma, too. This is a highlight.

Monday the 24th backs off a bit to around 6 feet, and the onshore breeze sneaks back in. Tuesday the 25th the size is back up to 8 feet with a long 14-second period, but the morning wind puts a ripple on it. The afternoon looks better with an offshore, but it's not as glassy as Sunday.

Wednesday the 26th has another good window. The wind is calm, absolutely glassy. Swell is down to a friendly 6 feet but still holds a good 13-second period. This is a great, clean session if you want the quality without the heavy size.

Then it gets messy. From Thursday the 27th up to the end of the month, the winds get fickle and there's rain around. Saturday the 29th sees the swell jump back up to over 11 feet, but it's onshore and choppy. Sunday the 30th is blown out by a strong ESE wind. It's a poor stretch.

Heading into September, Tuesday the 1st and Wednesday the 2nd are blown out with strong cross-onshore winds. But then things turn around. Thursday the 3rd is the big one. We are looking at a colossal 16-foot SW swell with a 14-second period. The energy is astronomical, hitting 11231. With light winds expected, this could be a truly exceptional, once-in-a-while type session, but it's a big call for the experts only. It's over two weeks away, so I'd say promising but not locked in just yet.

So, to recap: Sunday the 23rd is your first solid call, and Thursday the 3rd of September is the one to dream about, but it's a long way off and will be a beast.

This is Rusty, signing off.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Fri afternoon, min 12°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Sat afternoon, min 11°C on Mon night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
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
3
4
4
4
3
2
2
0
1
3
3
3
4
3
3
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)
2.5
SW
12
2.4
SW
12
2.3
SW
12
3.5
SSW
13
3
SW
13
2.5
SW
12
2.1
SW
12
1.4
SSW
11
1.9
SW
11
1.4
SW
11
1.4
SW
12
3
SW
12
3
SW
13
2.5
SW
12
1.7
SSW
11
1.9
SW
11
1.8
SW
11
1.8
SW
11
2.4
SW
12
2.2
SW
13
1.3
SSW
17
Wave Graph
Metric surfscale
Energy kJ
1978
1693
1500
4102
3193
1914
1250
486
821
488
480
2071
2698
2044
674
908
780
725
1626
1584
1021
Wind (km/h)
10
SW
10
SW
10
WNW
5
WSW
10
S
5
NNE
15
ESE
15
ESE
10
W
20
WSW
15
WSW
10
W
5
SW
10
SSE
0
N
10
SW
5
SSW
0
NNE
15
ESE
20
E
10
NE
Wind State
cross-on
cross-on
cross
cross-on
on
glassy
cross
cross
cross
cross-on
cross-on
cross
on
cross-on
glassy
on
on
glassy
cross
cross-off
cross-off
High Tide
7:31PM1.31m
7:49AM1.12m
8:20PM1.16m
9:23AM1.00m
10:47PM1.07m
12:37PM1.04m
00:51AM1.16m
1:37PM1.19m
1:41AM1.29m
2:11PM1.34m
2:15AM1.43m
2:39PM1.49m
2:44AM1.55m
Low Tide
1:08PM0.53m
1:49AM0.63m
1:47PM0.68m
2:58AM0.75m
3:17PM0.82m
6:04AM0.77m
6:39PM0.79m
7:27AM0.63m
7:40PM0.65m
8:02AM0.49m
8:15PM0.51m
8:30AM0.35m
8:44PM0.38m
clear
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:01
7:01
7:00
6:58
6:56
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:01
6:01
6:02
6:04
6:04
 mm
Temp °C
16
16
14
16
16
13
16
18
14
17
18
15
16
16
14
16
16
13
17
19
16
Feels °C
15
15
13
14
14
13
14
15
12
13
13
13
15
15
13
15
14
14
15
16
14
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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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