Surf Forecasts:
Fish Boma surf forecast from 9 Sep 2026:
- Best quality surf: Saturday 12 Sep, 11PM (local time) - 7ft (2.2m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 2PM (local time) - 11ft (3.5m), 15s period, SW swell with 5,070 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 5PM (local time) - 2.5ft (0.8m), 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 (Sep 09) at 5PM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.7m and 9s. 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 15s and forecast to arrive on Wednesday (Sep 16) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Wed 9th Sep) | 2.5ft (0.8m) 13s |
| Best Surf | 11PM (Sat 12th Sep) | 7ft (2.2m) 16s |
| Most Powerful | 2PM (Wed 16th Sep) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Fish Boma over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's cut through the noise on what's cooking at Fish Boma.
Honestly, the next few days look pretty flat and ugly. The water is sitting at 58°, which is a solid 5° colder than normal – that's a chilly one, so you'll want a thick wetsuit.
For Wednesday the 9th, it's tiny. You've got a 2ft swell from the SW, but the energy is weak (400). The morning is a cross-off mess, but the afternoon goes glassy. The waves will be knee-high, but if you're jonesing, that's your only window.
Thursday the 10th sees some life with a 5ft SW groundswell (16-second period), pushing the energy to (1576). But the wind is a messy cross-on all day. Friday the 11th is similar – size drops to 4ft but the wind is junk. Not worth the fight with the crowds that are *sometimes* here.
You are waiting for Sunday the 13th. That's the standout. The morning is a gem: glassy conditions, a solid 7ft of SSW groundswell with a 14-second period (3065 energy). That's proper, grunty surf and dead calm air. It's "excellent for experienced surfers" for a reason – that's a big, powerful reef break. If you've got the skill, it's the session.
After a choppy Monday, check Tuesday the 15th. The afternoon delivers perfect 3ft waves from the SSW with a *very* long period of 19 seconds (1369 energy). Clean cross-off wind and clear skies. That long period will wrap in beautifully for some gorgeous, clean lines.
The second week gets heavy. From Wednesday the 16th, we see a massive spike – 12ft of SW swell on Wednesday and Thursday morning (4745 energy). That's expert-only territory, with howling wind. Thursday arvo on the 17th has 35 km/h cross-off winds, keeping it clean for the pros, but it's a beast.
The week of the 18th to the 22nd stays big, with 10ft of short-period, choppy ESE windswell. Lots of energy, but messy and strong. Not for the average surfer.
Then, a late gem on Monday the 21st: a 6ft SSW groundswell with a long 16-second period (3896 energy) and a clean cross-off breeze. And finally, on Wednesday the 23rd, another glassy morning window with 7ft of E swell (1129 energy).
So to sum it up: the first week is a wash until Sunday the 13th morning – that's your best early bet. But the real standout is the combo of Tuesday the 15th afternoon's long-period, clean lines. If you can only paddle out once, make it that one.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 28°C on Wed morning, min 15°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Mon night. Warm (max 22°C on Sun morning, min 15°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
AM | 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 14 | SW 13 | SW 13 | SW 16 | SW 15 | SW 13 | SW 13 | SW 12 | SW 12 | SW 14 | SSW 17 | SSW 16 | SSW 14 | SW 14 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 11 | SSW 19 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 198 | 246 | 286 | 1057 | 1784 | 1247 | 1185 | 520 | 427 | 736 | 2351 | 2441 | 1690 | 1231 | 943 | 726 | 717 | 784 | 533 | 774 | 1506 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross | cross-on | cross-on | cross-on | on | cross | cross-off | on | cross-off | cross-off | glassy | glassy | off | cross-off | cross-on | glassy | cross-off | cross-off | glassy |
High Tide | 2:45PM1.78m | 3:00AM1.73m | 3:19PM1.90m | 3:34AM1.79m | 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 | ||||||||
Low Tide | 8:34AM0.13m | 9:00PM0.11m | 9:08AM0.03m | 9:34PM0.02m | 9:40AM-0.02m | 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 | |||||||
 | |  |  | | |  | |  | | | | | |  | | |  | | | | |
 | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:19 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 7 | — | — | 1 |
Temp °C | 28 | 28 | 18 | 19 | 18 | 16 | 17 | 17 | 16 | 17 | 18 | 17 | 22 | 20 | 22 | 22 | 20 | 16 | 21 | 22 | 18 |
Feels °C | 27 | 27 | 18 | 19 | 18 | 16 | 16 | 16 | 15 | 17 | 17 | 16 | 23 | 21 | 21 | 22 | 19 | 16 | 20 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | E 10 | SW 13 | SW 13 | SW 16 | SW 15 | SW 13 | SW 13 | S 7 | SSE 7 | SW 14 | SSW 17 | SSW 16 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 11 | E 11 | SW 17 |
| kJ | 88 | 246 | 286 | 1057 | 1784 | 1247 | 1185 | 199 | 149 | 736 | 2351 | 2441 | 593 | 689 | 943 | 726 | 717 | 784 | 533 | 345 | 1506 |
Swell 2 Height (m) Direction Period (s) | SW 14 | E 9 | E 10 | SW 12 | E 10 | E 10 | E 11 | SW 12 | SW 12 | SE 7 | SE 7 | — | SSW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 6 | SW 12 | SSW 19 | E 11 |
| kJ | 198 | 87 | 65 | 455 | 54 | 33 | 37 | 520 | 427 | 109 | 184 | — | 1690 | 1231 | 792 | 519 | 373 | 66 | 349 | 774 | 181 |
Swell 3 Height (m) Direction Period (s) | SW 11 | SSE 10 | SSE 9 | E 10 | SSE 9 | — | — | SW 8 | SW 15 | SSW 10 | E 9 | — | — | — | — | — | — | SW 12 | SSW 22 | SW 11 | E 11 |
| kJ | 114 | 36 | 16 | 55 | 8 | — | — | 50 | 55 | 140 | 15 | — | — | — | — | — | — | 224 | 91 | 250 | 181 |
Wind waves Height (m) Direction Period (s) | — | — | W 3 | SW 4 | — | — | — | S 7 | — | — | SE 7 | ESE 8 | ESE 8 | — | — | — | WSW 3 | — | — | — | SW 10 |
| kJ | — | — | 8 | 9 | — | — | — | 257 | — | — | 311 | 782 | 782 | — | — | — | 6 | — | — | — | 628 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 0 | 1 | 3 | 3 | 3 | 3 | 3 | 0 | 16 | 16 | 16 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Garden Route | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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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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