Surf Forecasts:
Fish Boma surf forecast from 29 Aug 2026:
- Best quality surf: Wednesday 2 Sep, 2AM (local time) - 10ft (3.0m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 5AM (local time) - 10ft (3.0m), 14s period, SW swell with 3,576 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 8PM (local time) - 7ft (2.1m), 11s 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 Sunday (Aug 30) at 8PM. The primary swell is predicted to be 2.1m and 11s period with a secondary swell of 0.4m and 11s. 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 3.0m 14s and forecast to arrive on Wednesday (Sep 02) at 5AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Saturday (Sep 05) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 30th Aug) | 7ft (2.1m) 11s |
| Best Surf | 2AM (Wed 2nd Sep) | 10ft (3.0m) 13s |
| Most Powerful | 5AM (Wed 2nd Sep) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Fish Boma over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down for Fish Boma over the next couple of weeks.
We’ve got a solid run of south-west groundswell lining up, starting Sunday, August 30th. The energy is moderate to strong, with combined energy values in the thousands. The first few days have some wind and tide issues, but there’s one clear standout that’s worth paddling out for.
Monday, August 31st, is the pick of the early days. The morning is glassy—dead flat calm—with a clean 5ft swell pushing in from the SW at 11 seconds. That’s long-period groundswell, so the waves will have some punch and shape, though it might be a bit straight at a beach break. On a reef like Fish Boma, it should line up real nice. Water temp is about average for this time of year, nothing crazy.
Tuesday, September 1st, builds up nicely but the wind is a little onshore or cross, keeping it from being perfect. The swell gets to 7ft to 8ft, with period stretching to 13 seconds, and combined energy climbing to 1400 and 1989. It’s good, but not the cleanest.
Wednesday, September 2nd, sees a real jump in size—10ft in the morning from the SW with a 14-second period, and combined energy hitting 3208. That’s strong, powerful surf. But it’s cross-shore wind, and the afternoon gets a 12 mph cross-breeze, so it’s messy. This setup is for experienced surfers only; beginners, stay out of the water. That afternoon, with 8ft and 12 mph cross wind, it’s more of a kite-surfing show than a paddle session.
The end of the first week and into the second week turns ugly. From Thursday, September 3rd, through to the 9th, it’s mostly onshore, strong wind, and rain, with the swell dropping and getting jumbled. There’s a gap of several days where the surf is just not worth it—poor conditions, strong cross-on winds, and lumpy chop.
But then, Saturday, September 12th, we get a proper standout. The morning is glassy again, with 5ft SW swell at 14 seconds (combined energy 1448). Clean, long-period waves, perfect for a reef. The afternoon is the absolute highlight: 10ft from the SW at 13 seconds, glassy, with combined energy roaring up to 3434. This is excellent, powerful surf for experienced crew. Crowds are possible here, so get there early.
The run ends with a bit of wind and rain on Sunday, September 13th, and Monday, September 14th, so that Saturday is your target. Don’t miss it.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Very mild (max 16°C on Tue morning, min 11°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Thu night. Very mild (max 18°C on Wed afternoon, min 12°C on Tue night). Winds increasing (calm on Tue night, strong winds from the SE by Thu afternoon). | ||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 10 | SW 9 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 12 | SW 13 | SW 13 | SW 14 | SW 13 | SW 13 | SW 12 | SSW 9 | SE 8 | SSW 9 | SW 11 | SSW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 650 | 679 | 1111 | 826 | 663 | 563 | 553 | 1369 | 1972 | 3169 | 3201 | 2549 | 1847 | 944 | 741 | 507 | 528 | 637 | 686 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-off | glassy | cross-on | glassy | on | cross-on | cross-off | cross | cross | cross-off | on | cross-on | cross | cross | cross | cross-off |
High Tide | 4:37AM1.76m | 4:54PM1.90m | 5:06AM1.72m | 5:24PM1.85m | 5:38AM1.64m | 5:57PM1.76m | 6:13AM1.53m | 6:34PM1.62m | 6:54AM1.38m | 7:20PM1.45m | 7:52AM1.21m | 8:36PM1.27m | |||||||
Low Tide | 10:35PM0.06m | 10:40AM0.01m | 11:05PM0.06m | 11:09AM0.05m | 11:36PM0.12m | 11:40AM0.14m | 00:11AM0.21m | 12:14PM0.26m | 00:51AM0.35m | 12:56PM0.42m | 1:45AM0.51m | 1:58PM0.59m | 3:22AM0.65m | ||||||
 |  | |  |  | |  | | | | | | |  |  |  | |  | | |
 | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — | 6:43 | — | — |
 | 6:07 | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — |
mm | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 13 | 2 | — | — |
Temp °C | 14 | 14 | 14 | 13 | 14 | 15 | 12 | 16 | 15 | 13 | 17 | 18 | 15 | 16 | 14 | 16 | 17 | 18 | 15 |
Feels °C | 11 | 12 | 12 | 11 | 13 | 12 | 11 | 14 | 13 | 12 | 15 | 14 | 13 | 14 | 7 | 10 | 11 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 9 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 12 | SW 13 | SW 13 | SW 14 | SW 13 | SW 13 | SW 12 | SSW 9 | S 8 | SSW 9 | SW 11 | SSW 11 |
| kJ | 650 | 679 | 1111 | 826 | 663 | 563 | 553 | 1369 | 1972 | 3169 | 3201 | 2549 | 1847 | 944 | 741 | 375 | 528 | 637 | 686 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | E 12 | E 11 | E 11 | E 11 | SSW 13 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 8 | SW 12 | SW 12 | WSW 11 | S 8 | S 15 |
| kJ | 241 | 331 | 41 | 21 | 20 | 37 | 295 | 31 | 17 | 17 | 7 | 6 | 6 | 6 | 549 | 319 | 157 | 105 | 38 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | SSE 10 | SSE 10 | SSE 11 | SE 10 | E 10 | — | — | — | — | — | — | — | — | SSW 15 | SSW 13 | SSW 14 | SSW 14 |
| kJ | 95 | 67 | 20 | 10 | 11 | 4 | 33 | — | — | — | — | — | — | — | — | 86 | 158 | 104 | 69 |
Wind waves Height (m) Direction Period (s) | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | SSE 7 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 |
| kJ | 195 | — | — | — | — | — | — | — | — | — | — | — | — | 431 | 596 | 507 | 432 | 327 | 238 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 4 | 3 | 40 | 0 | 0 | 16 | 0 | 3 | 3 | 0 | 16 | 377 | 0 | 40 | 249 | 631 | 849 | 2958 | 16 |
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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