Surf Forecasts:
Fish Boma surf forecast from 26 Aug 2026:
- Best quality surf: Thursday 27 Aug, 2AM (local time) - 7ft (2.1m), 12s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 8PM (local time) - 13ft (4.0m), 14s period, SW swell with 5,808 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 2AM (local time) - 7ft (2.1m), 12s period with SSW 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 Thursday (Aug 27) at 2AM. The primary swell is predicted to be 2.1m and 12s period with a secondary swell of 2.0m and 7s. Another secondary swell of 2.5m and 8s is also forecast. 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 14s and forecast to arrive on Tuesday (Sep 01) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Wednesday (Aug 26) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 27th Aug) | 7ft (2.1m) 12s |
| Best Surf | 2AM (Thu 27th Aug) | 7ft (2.1m) 12s |
| Most Powerful | 8PM (Tue 1st Sep) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Fish Boma over the next 16 days.
The Lowdown
Alright, Rusty here, giving you the lowdown in feet and knots.
The first real chance of a wave is on Wednesday, August 26th, but it's a messy start. Fish Boma is seeing a 6ft south swell, with a very long 16-second period, so there's plenty of energy pushing in (2509 combined energy). The wind is a cross-off from the east at 25 km/h, which keeps the surface clean, but the report flags it as marginal – tide might be playing games. The water is sitting at 60°F, which is 3°F colder than normal for this time of year, so that’s a bit nippy.
Thursday morning, August 27th, is where things get interesting. The swell drops a touch to 7ft from the SSW, still a solid 12-second period, and the wind goes glassy – dead calm from the east at 5 km/h. The wave energy is still strong (1587 combined energy), and the report calls it excellent for experienced surfers. This is a standout morning. The afternoon sees the wind shift a little cross-shore and the swell backing off to 5ft, so the morning is the clear winner here.
Friday, August 28th, is a step down. The swell drops to 5ft, and the wind goes onshore from the southwest. The energy is moderate (725 combined energy). It’s not terrible, but it’s not worth getting excited about.
Saturday, August 29th, is a write-off: small, messy, cross-on winds. Not worth paddling out.
Sunday, August 30th, has a pulse. The morning brings a 6ft SSW swell with a short 8-second period, and the wind is light cross-on. It’s a bit lumpy. But the afternoon is a beauty: the wind drops to nothing, glassy conditions, with a 5ft SW swell and a long 13-second period. The energy is still solid (1089 combined energy), and the report says excellent for experienced surfers. That afternoon session is a real gem.
From Monday, August 31st, through to Tuesday, September 1st, the swell builds but the wind gets messy. Tuesday afternoon sees a 12ft SW swell with a 14-second period, but it’s accompanied by a strong 40 km/h cross-on breeze. The energy is huge (4441 combined energy), but it’s a choppy, blown-out mess – more for kite surfers than paddle surfers.
Wednesday, September 2nd, and Thursday, September 3rd, are still big, with 10ft to 12ft SW swells, but the wind stays onshore or cross-on. There’s a glimmer on Thursday afternoon: a 12ft SE swell with a short 8-second period, but the wind is a clean cross-off from the east. The energy is strong (1917 combined energy), and the report calls it excellent for experienced surfers.
Now, the real standout. Friday, September 4th, is massive. A 21ft ESE swell with an 11-12 second period, and the wind is glassy in the morning, then clean cross-off in the afternoon. The combined energy readings are off the charts – 10758 and 12551. However, the report warns that the swell is too big for this break. This is expert-only territory, and even then, it’s pushing the limits.
Saturday, September 5th, is still huge. The morning sees a 15ft ESE swell with a 13-second period, and the wind is offshore from the NNE at 15 km/h. The energy is astronomical (10050 combined energy), and the report says exceptional for expert surfers. This is the best of the best, but you better be on your game.
Sunday, September 6th, through to Tuesday, September 8th, see the swell drop back to 7ft to 10ft, with onshore and cross-shore winds. Tuesday morning, September 8th, is glassy with a 4ft SW swell, but the energy is moderate (604 combined energy). It’s a nice, clean session, but not a standout.
The rest of the forecast into the second week is small and inconsistent, with short-period swells and light onshore winds. Nothing to plan a trip around.
To wrap it up: the top two windows are Thursday morning, August 27th – glassy, 7ft, excellent for experienced surfers – and Saturday morning, September 5th – a massive 15ft offshore swell for experts only. The Friday and Saturday, September 4th and 5th, are for the brave, but the swell size is extreme.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 14°C on Wed morning). Winds decreasing (fresh winds from the E on Wed afternoon, calm by Fri afternoon). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Sat night. Very mild (max 17°C on Sat morning, min 11°C on Sun night). Winds decreasing (fresh winds from the WSW on Sat night, calm by Sun night). | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
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) | S 16 | SSW 16 | SSW 12 | SSW 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | SW 13 | SW 10 | WSW 8 | SW 8 | SW 11 | WSW 11 | SW 12 | SW 11 | SW 13 | SW 14 | SW 13 |
Wave Graph | |||||||||||||||||||||
1552 | 2543 | 1310 | 1090 | 638 | 699 | 467 | 335 | 351 | 251 | 175 | 346 | 587 | 423 | 771 | 583 | 549 | 368 | 1791 | 4775 | 4646 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | glassy | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | on | on | glassy | cross-on | cross-on | cross |
High Tide | 3:06PM1.63m | 3:12AM1.65m | 3:32PM1.75m | 3:40AM1.72m | 3:59PM1.84m | 4:08AM1.76m | 4:26PM1.89m | 4:37AM1.76m | 4:54PM1.90m | 5:06AM1.72m | 5:24PM1.85m | 5:38AM1.64m | 5:57PM1.76m | ||||||||
Low Tide | 8:56AM0.23m | 9:11PM0.26m | 9:21AM0.12m | 9:39PM0.16m | 9:46AM0.05m | 10:07PM0.09m | 10:13AM0.01m | 10:35PM0.06m | 10:40AM0.01m | 11:05PM0.06m | 11:09AM0.05m | 11:36PM0.12m | 11:40AM0.14m | 00:11AM0.21m | |||||||
6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | |
— | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 8 | 2 | — | — | — | — | — | — | — | 2 |
Temp °C | 18 | 20 | 16 | 25 | 26 | 20 | 22 | 23 | 20 | 17 | 17 | 16 | 14 | 15 | 13 | 15 | 15 | 12 | 15 | 18 | 15 |
Feels °C | 14 | 14 | 12 | 23 | 24 | 19 | 21 | 23 | 20 | 16 | 15 | 15 | 9 | 11 | 11 | 13 | 13 | 11 | 12 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | S 16 | SSW 16 | SSW 12 | SSW 12 | ESE 8 | S 12 | S 11 | S 11 | S 11 | S 11 | SSE 11 | SW 14 | SW 13 | SW 8 | SW 11 | WSW 11 | SW 12 | SW 11 | SW 13 | SW 14 | SW 13 |
1552 | 2543 | 1310 | 1090 | 385 | 699 | 467 | 335 | 351 | 251 | 167 | 346 | 342 | 423 | 771 | 583 | 549 | 368 | 1791 | 4775 | 4646 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | WSW 13 | ESE 7 | ESE 8 | S 12 | ESE 9 | E 10 | E 10 | SW 14 | E 11 | E 11 | E 11 | E 11 | SW 13 | SSE 9 | SSE 8 | SSE 7 | SSE 7 | E 10 | ESE 11 | E 10 |
581 | 154 | 426 | 428 | 638 | 289 | 319 | 231 | 200 | 119 | 157 | 127 | 64 | 376 | 62 | 66 | 70 | 36 | 35 | 37 | 18 | |
Swell 3 Height (m) Direction Period (s) | SSW 12 | — | — | WSW 12 | SSW 12 | SW 17 | WSW 11 | SSE 14 | WSW 10 | SW 13 | SW 13 | SSE 11 | SSE 10 | E 11 | E 11 | E 11 | E 11 | E 11 | SE 7 | — | — |
462 | — | — | 127 | 299 | 11 | 47 | 160 | 42 | 164 | 175 | 91 | 42 | 64 | 22 | 23 | 38 | 36 | 12 | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 5 | ESE 7 | E 8 | — | — | — | — | — | E 11 | SW 3 | SW 3 | SW 10 | WSW 8 | — | — | — | — | — | — | — | — |
103 | 606 | 767 | — | — | — | — | — | 229 | 2 | 6 | 315 | 587 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 354 | 0 | 0 | 3 | 0 | 3 | 16 | 3 | 3 | 3 | 183 | 3 | 3 | 0 | 3 | 37 | 0 | 17 | 41 | 3 |
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.











