
Surf Forecasts:
Fish Boma surf forecast from 11 Sep 2026:
- Best quality surf: Saturday 12 Sep, 8PM (local time) - 7ft (2.1m), 17s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 8AM (local time) - 11ft (3.5m), 14s period, SW swell with 4,542 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 11PM (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 Friday (Sep 11) at 11PM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 1.4m and 7s. Another secondary swell of 1.5m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Fish Boma in the next 16 days are 3.5m 14s and forecast to arrive on Wednesday (Sep 16) at 8AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 11th Sep) | 4.5ft (1.3m) 12s |
| Best Surf | 8PM (Sat 12th Sep) | 7ft (2.1m) 17s |
| Most Powerful | 8AM (Wed 16th Sep) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Fish Boma over the next 16 days.
The Lowdown
G'day, Rusty here.
We've got a 16-day run ahead of us but honestly, for the first week or so, it's a bit of a mixed bag at Fish Boma. The patterns are there, but you'll have to pick your moments. The water is sitting at 60°, which is a bit colder than normal for this time of year – you'll feel that chill after a wipeout.
Let’s start with the standout for the whole period: it's next Thursday, the 17th of September, in the morning. We've got a 6ft swell out of the SW with a solid 12-second period, and it's glassy – dead calm. For a reef break, that is pure silk. The combined energy is sitting at 1063 (moderate), but with the wind flat like that, the wave face is going to be perfection material for intermediate surfers. This is the one to circle on the calendar.
Leading up to that, we have some notes. This coming Friday the 11th afternoon has a 5ft SW swell (12 sec) but it's a cross breeze, and the call is "marginal" – energy is weakish at 816. Saturday the 12th picks up: afternoon sees 7ft from the SSW with a long 16-second period, energy jumps to 2431 (strong). That's a groundswell, and at a reef break that's a serious ticket. The wind is cross-on though, so it'll be lumpy but powerful. Sunday morning the 13th is a write-off – 12ft from the ESE but with short 9-second period and 16 mph cross-winds making a mess (5246 energy – very strong, but ugly).
After the 17th, the consistency drops. Friday the 18th has a 6ft SW (12 sec) in the morning with light cross-on wind – worth a look, but not a classic. The following week fades into the weeds. From the 22nd through the 24th of September, the wind goes ballistic from the WSW, blowing 22–25 mph. That'll create a nasty chop. The swell is there (6ft to 8ft on the 24th), but with that wind, you'll be better off kitesurfing than trying to paddle into a section. Energy hits 2265 (strong) but it's a war zone.
The tail end of the run gives a glimmer of hope. On Friday morning the 25th of September, we get another glassy morning – 7ft SW swell at 12 seconds, glassed off, with 1182 energy (moderate). That sets up beautifully for experienced surfers. Then Saturday the 26th morning is also glassy with a 5ft SW swell – that'll be a fun, easy wave for most.
So, to sum it up: Thursday the 17th is the gold. Sunday the 26th is the silver. The rest is picky.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Sat night. Warm (max 21°C on Sun night, min 16°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 44mm), heaviest during Mon afternoon. Warm (max 20°C on Tue morning, min 13°C on Wed morning). Wind will be generally light. | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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) | SW 12 | SW 12 | SW 14 | SSW 16 | SW 16 | ESE 9 | SW 14 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 11 | SW 12 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 |
Wave Graph | ||||||||||||||||||||
580 | 478 | 825 | 2257 | 2291 | 2025 | 1303 | 1402 | 1024 | 910 | 610 | 514 | 338 | 1622 | 3968 | 2110 | 1521 | 854 | 736 | 805 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-on | cross-on | cross-off | cross | cross-off | cross-off | on | on | cross-off | on | cross-on | on | cross-on | on | glassy | glassy | cross | cross-off |
High Tide | 3:51PM1.96m | 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 | |||||||
— | — | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | |
6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | |
mm | — | 1 | 1 | — | 6 | 1 | — | 2 | 3 | 17 | 9 | — | — | 1 | 4 | 11 | 2 | — | — | — |
Temp °C | 18 | 16 | 18 | 19 | 17 | 17 | 18 | 21 | 20 | 17 | 16 | 20 | 19 | 16 | 13 | 14 | 15 | 15 | 16 | 14 |
Feels °C | 17 | 16 | 19 | 19 | 19 | 14 | 16 | 19 | 20 | 18 | 16 | 18 | 18 | 16 | 11 | 11 | 13 | 14 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | S 7 | SW 12 | SW 14 | SSW 16 | SW 16 | ESE 9 | SW 14 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 11 | E 11 | SW 16 | E 10 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 |
215 | 478 | 825 | 2257 | 2291 | 1507 | 1303 | 1402 | 1024 | 910 | 610 | 514 | 338 | 1622 | 141 | 2110 | 1521 | 854 | 736 | 805 | |
Swell 2 Height (m) Direction Period (s) | SW 12 | SSE 7 | SE 6 | SE 13 | — | SSW 15 | — | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SW 12 | SW 9 | — | S 7 | SE 7 | SSE 7 | SE 7 | SE 8 |
580 | 150 | 96 | 7 | — | 1714 | — | 792 | 527 | 373 | 413 | 249 | 338 | 587 | — | 138 | 65 | 159 | 91 | 100 | |
Swell 3 Height (m) Direction Period (s) | E 11 | E 10 | SSW 10 | S 9 | — | — | — | — | — | SSW 5 | — | SSW 16 | SW 14 | E 10 | — | E 10 | E 10 | E 10 | E 10 | E 10 |
21 | 18 | 111 | 59 | — | — | — | — | — | 19 | — | 100 | 169 | 177 | — | 102 | 72 | 50 | 50 | 49 | |
Wind waves Height (m) Direction Period (s) | — | SE 6 | — | ESE 7 | ESE 9 | ESE 9 | ESE 9 | — | — | — | — | — | — | — | SW 14 | — | — | — | — | — |
— | 166 | — | 108 | 1550 | 2025 | 1177 | — | — | — | — | — | — | — | 3968 | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3 | 0 | 3 | 16 | 16 | 354 | 16 | 0 | 3 | 3 | 0 | 3 | 16 | 3 | 3 | 183 | 0 | 0 | 527 | 0 |
Best forecast wave conditions in Garden Route | ||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.










