
Surf Forecasts:
Fish Boma surf forecast from 10 Aug 2026:
- Best quality surf: Thursday 13 Aug, 2AM (local time) - 11ft (3.5m), 9s period, E swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 2PM (local time) - 6.5ft (2.0m), 18s period, SSW swell with 2,547 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 2AM (local time) - 10ft (3.0m), 11s period with S 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 Tuesday (Aug 11) at 2AM. The primary swell is predicted to be 3.0m and 11s period with a secondary swell of 0.8m and 8s. 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 2.0m 18s and forecast to arrive on Thursday (Aug 13) at 2PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Aug 17) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 11th Aug) | 10ft (3.0m) 11s |
| Best Surf | 2AM (Thu 13th Aug) | 11ft (3.5m) 9s |
| Most Powerful | 2PM (Thu 13th Aug) | 6.5ft (2.0m) 18s |
Table - best surf conditions forecast for Fish Boma over the next 16 days.
The Lowdown
Alright, mate, Rusty here. Let’s have a look at what’s cooking.
Overall, we’ve got a solid run of surf on the cards, but it’s not all smooth sailing. The first few days are a bit messy with lumpy wind, but there’s some real magic lined up mid-period and again later on. The standout windows are Thursday the 13th through to Friday the 14th, and then again around Wednesday the 19th and into the following weekend.
We’re starting off at Fish Boma (reef). Water temps are sitting about average for this time of year, nothing weird going on there. The first couple of days – Tuesday the 11th and Wednesday the 12th – are a bit of a write-off. You’ve got a 7ft to 8ft SSW swell pushing in, but the wind is a fresh cross-offshore from the east at 15-18 mph. The energy is strong (2069 to 3327), but the quality is just not there – marginal at best. Thursday morning the 13th is where it starts to get interesting. The wind switches to a light offshore from the NE at 12 mph, and we’ve got a solid 5ft SSW groundswell with a very long 19-second period. The energy is pumping (3644). This is proper groundswell for the reef, and the offshore breeze will have it looking clean. This is the first standout. It’s going to be a bit punchy, so more for the experienced crew. Expect some crowds because it’s a known spot and it’s going to be good.
Friday the 14th is the real gem. Morning has a tiny 3 mph offshore from the north, with a 5ft SW swell and a long 16-second period (1619 energy). Then Friday afternoon goes glassy – a 3 mph southeasterly that’s dead calm, with a 4ft SW swell and 15-second period (1149 energy). That’s pure, clean, lined-up reef surfing. This is the absolute pick of the bunch. Light crowds possible.
The weekend (15th-16th) drops right off. Swell dips to 3ft-3ft, wind becomes cross or cross-on, and the energy is way down (606-743). Not worth paddling out. Monday the 17th sees a bump back up to 5ft-6ft SW swell, but cross-on winds keep it messy.
Tuesday the 18th is a write-off – strong cross-on wind at 18 mph and lumpy conditions, with one session even showing 10ft of SW swell (2385 energy), but it’s poor quality. That’s more kite-surfing territory than paddle.
Wednesday the 19th has a moderate cross-off breeze, with 6ft-7ft SW swell and 11-second period. It’s clean but nothing special. Then we get another standout window: Thursday the 20th. Morning has 8ft of short-period east swell (7 seconds) with a light cross-off breeze (1101 energy). Afternoon bumps to 10ft east swell (8 seconds) with the same light cross-off (1603 energy). This is a big, punchy east swell for the exposed reef. Not for beginners, but if you’ve got the skills, it’ll be excellent.
Friday the 21st is onshore and messy. Saturday the 22nd swings back with a lovely 4ft SW groundswell at a long 16-second period, and a light cross-off from the ENE (1281 energy). Clean and glassy in the morning. That’s a good call for a weekend paddle.
Sunday the 23rd gets blustery again with 8ft SW swell and strong cross-on wind – best left alone. Monday the 24th morning is glassy with a 5ft SW swell (13 seconds, 887 energy) – looks good for a morning session. After that, the tail end of the forecast (25th-26th) fizzles out to small, weak, onshore slop, before Wednesday the 26th morning brings a final clean glassy window with 4ft SSW groundswell at a very long 16-second period (1273 energy). A nice way to finish.
So, if you’ve got a window, Friday the 14th is the day – glassy, lined-up, and pure. Thursday the 20th for the bigger, more powerful crew.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 25°C on Thu afternoon, min 12°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 26°C on Fri afternoon, min 15°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 11 | SSW 13 | SSW 12 | SSW 23 | SSW 20 | SSW 18 | E 9 | SSW 19 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | SW 15 | SW 14 |
Wave Graph | |||||||||||||||||||
2541 | 1458 | 887 | 770 | 1748 | 1877 | 2065 | 1906 | 2264 | 1456 | 1055 | 777 | 598 | 518 | 458 | 424 | 299 | 418 | 500 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | glassy | cross | cross-on | cross | cross | cross-on | cross-on | cross-off |
High Tide | 2:33AM1.66m | 3:01PM1.71m | 3:16AM1.75m | 3:41PM1.84m | 3:55AM1.80m | 4:18PM1.92m | 4:31AM1.80m | 4:52PM1.93m | 5:05AM1.75m | 5:26PM1.88m | 5:37AM1.66m | 5:57PM1.78m | |||||||
Low Tide | 8:26PM0.29m | 8:51AM0.13m | 9:12PM0.15m | 9:30AM0.03m | 9:53PM0.06m | 10:05AM-0.03m | 10:31PM0.03m | 10:39AM-0.04m | 11:06PM0.05m | 11:10AM0.01m | 11:38PM0.12m | 11:40AM0.10m | 00:10AM0.22m | ||||||
— | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | |
5:53 | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:57 | — | — | 5:58 | — | |
mm | 4 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 16 | 14 | 16 | 19 | 15 | 21 | 25 | 24 | 24 | 26 | 24 | 20 | 22 | 18 | 17 | 18 | 15 |
Feels °C | 10 | 9 | 11 | 9 | 12 | 13 | 9 | 17 | 21 | 19 | 22 | 24 | 22 | 19 | 21 | 17 | 15 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | S 11 | SSW 13 | SSW 12 | SSW 11 | SSW 20 | SSW 18 | ESE 9 | SSW 19 | SW 18 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | SW 13 | E 11 | SW 15 | SW 14 |
2541 | 1458 | 802 | 379 | 1748 | 1877 | 1208 | 1906 | 2264 | 758 | 564 | 372 | 225 | 220 | 177 | 424 | 191 | 418 | 500 | |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 26 | SSW 23 | SSW 11 | SSW 11 | SSW 17 | SW 16 | S 11 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | E 9 | WSW 13 | E 11 | E 11 |
— | — | 65 | 744 | 211 | 149 | 1978 | 886 | 2 | 1456 | 1055 | 777 | 598 | 518 | 458 | 177 | 299 | 181 | 223 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 10 | S 10 | S 10 | SW 10 | S 10 | — | — | — | — | — | SW 4 | SSW 4 | S 11 | SW 16 | SW 4 | SW 5 |
— | — | — | 17 | 45 | 30 | 38 | 8 | — | — | — | — | — | 5 | 6 | 3 | 206 | 7 | 8 | |
Wind waves Height (m) Direction Period (s) | ESE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 9 | ESE 9 | ESE 9 | E 9 | — | — | W 4 | — | — | WSW 4 | WSW 4 | — | — |
77 | 611 | 887 | 770 | 630 | 1271 | 2065 | 844 | 724 | 1172 | — | — | 18 | — | — | 2 | 11 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 16 | 16 | 16 | 16 | 16 | 0 | 0 | 16 | 0 | 0 | 0 | 1 | 3 | 3 | 1 | 3 | 16 | 0 |
Best forecast wave conditions in Garden Route | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
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.











