Surf Forecasts:
Fish Boma surf forecast from 15 Aug 2026:
- Best quality surf: Thursday 20 Aug, 8PM (local time) - 10ft (3.0m), 13s period, SSW swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 11PM (local time) - 10ft (3.0m), 13s period, SSW swell with 3,247 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 11PM (local time) - 3.5ft (1.1m), 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 Saturday (Aug 15) at 11PM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.9m and 5s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Fish Boma in the next 16 days are 3.0m 13s and forecast to arrive on Thursday (Aug 20) at 11PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Saturday (Aug 15) at 11PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Sat 15th Aug) | 3.5ft (1.1m) 13s |
| Best Surf | 8PM (Thu 20th Aug) | 10ft (3.0m) 13s |
| Most Powerful | 11PM (Thu 20th Aug) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Fish Boma over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down what’s coming at Fish Boma. This is a reef break that takes south swell, so when the ocean sends a pulse, it can really go off. The water is sitting at a very unusual 57°, which is a massive 6° colder than normal for this time of year – that’s a serious chill, so you’ll want a thick wetsuit and booties.
The first decent chance kicks off on the afternoon of Saturday, August 16th. There’s a 1.2m SW groundswell with a 12-second period, and the wind goes glassy – flat calm, no chop at all. The combined wave energy is moderate at 598, so there’s some fun punch. You might have to share the peak though, as crowds are sometimes a thing here. That afternoon is the standout of the first weekend.
Sunday, August 17th morning gets proper. There’s a 2.1m SW groundswell at 13 seconds, pushing the combined energy into strong territory at 1699. The wind is glassy again, and it’s completely clean. This is big, powerful surf – over 2m, so for experienced surfers only. If you’re good, that Monday morning session is your absolute gold.
The surf stays solid through the week, but the winds get a bit messy with light cross-onshore breezes. The next real standout is Friday, August 22nd morning. We’ve got 2.5m of SW swell, a 12-second period, and the wind comes cross-offshore from the east at only 10 km/h. That creates a clean, smooth face, and the combined energy is strong at 1958. Another one for the experienced crew.
There’s a lull over the next few days with messy, choppy conditions and building swell that gets really big and onshore by August 23rd and 24th. That 3.5m to 3.0m stuff on Sunday the 24th and Monday the 25th is massive, with combined energy over 4400, but the wind is ruining it with a cross-onshore chop. That looks more like a kite-surfing zone than a paddle spot.
Keep an eye on Tuesday, August 26th morning. A 2.3m SSW groundswell, 13-second period, with a dead calm, glassy wind. That’s clean, powerful, and for the experts only. And again on Tuesday afternoon, still clean with a cross-offshore breeze.
The very end of the run, on Saturday, August 30th morning, shows 2.2m of SW swell at a very long 15-second period, with glassy conditions. Combined energy is strong at 2106. That long-period groundswell will really wrap into this reef, but expect long lulls between sets. Another one for experienced surfers.
All in all, the best on offer is Sunday, August 17th morning for that clean, powerful 2.1m glassy session, and Tuesday, August 26th morning for the same super-clean, punchy 2.3m with zero wind.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 22°C on Sat night, min 14°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Fri afternoon, min 12°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 12 | SW 15 | SW 13 | SW 13 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 13 | SW 13 | SW 12 | SSW 12 | SW 11 |
Wave Graph | |||||||||||||||||||
502 | 590 | 428 | 1246 | 1589 | 1288 | 990 | 1360 | 1450 | 2111 | 1860 | 1576 | 1220 | 1679 | 2742 | 2757 | 1829 | 1316 | 821 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | glassy | cross-off | glassy | cross | cross-off | cross-on | glassy | cross-off | cross-on | on | cross | cross-on | glassy | cross-off | cross-off | cross | cross-on |
High Tide | 5:37AM1.66m | 5:57PM1.78m | 6:08AM1.54m | 6:27PM1.64m | 6:38AM1.41m | 6:58PM1.48m | 7:10AM1.26m | 7:31PM1.31m | 7:49AM1.12m | 8:20PM1.16m | 9:23AM1.00m | 10:47PM1.07m | |||||||
Low Tide | 11:38PM0.12m | 11:40AM0.10m | 00:10AM0.22m | 12:09PM0.23m | 00:40AM0.35m | 12:38PM0.38m | 1:11AM0.49m | 1:08PM0.53m | 1:49AM0.63m | 1:47PM0.68m | 2:58AM0.75m | 3:17PM0.82m | |||||||
— | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | |
5:57 | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 17 | 17 | 15 | 18 | 19 | 15 | 14 | 15 | 14 | 16 | 16 | 14 | 15 | 16 | 13 | 17 | 20 | 18 |
Feels °C | 20 | 15 | 15 | 13 | 17 | 18 | 15 | 13 | 14 | 13 | 16 | 15 | 14 | 13 | 14 | 12 | 15 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 15 | SW 13 | SW 13 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 13 | SW 13 | SW 12 | SSW 12 | SW 11 |
502 | 590 | 428 | 1246 | 1589 | 1288 | 990 | 1360 | 1450 | 2111 | 1860 | 1576 | 1220 | 1679 | 2742 | 2757 | 1829 | 1316 | 821 | |
Swell 2 Height (m) Direction Period (s) | ESE 5 | E 10 | SW 16 | E 8 | E 9 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ESE 5 |
36 | 108 | 155 | 68 | 108 | 108 | 81 | 55 | 51 | 31 | 30 | 16 | 15 | 15 | 6 | 6 | 6 | 6 | 15 | |
Swell 3 Height (m) Direction Period (s) | E 8 | S 11 | WSW 4 | E 11 | E 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | S 15 |
30 | 2 | 12 | 35 | 64 | — | — | — | — | — | — | — | — | — | — | — | — | — | 109 | |
Wind waves Height (m) Direction Period (s) | — | WSW 4 | — | — | — | — | — | — | — | — | — | — | — | WSW 4 | — | — | E 4 | E 4 | W 4 |
— | 12 | — | — | — | — | — | — | — | — | — | — | — | 24 | — | — | 18 | 19 | 36 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 3 | 0 | 0 | 0 | 16 | 0 | 3 | 0 | 0 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 3 | 183 |
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.











