Surf Forecasts:
Fish Boma surf forecast from 29 Aug 2026:
- Best quality surf: Wednesday 2 Sep, 2AM (local time) - 10ft (3.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 5AM (local time) - 10ft (3.0m), 13s period, SW swell with 3,436 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 5PM (local time) - 2.5ft (0.7m), 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 29) at 5PM. The primary swell is predicted to be 0.7m and 13s period with a secondary swell of 0.8m and 11s. Another secondary swell of 0.6m and 4s is also forecast. 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 13s and forecast to arrive on Wednesday (Sep 02) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Friday (Sep 04) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sat 29th Aug) | 2.5ft (0.7m) 13s |
| Best Surf | 2AM (Wed 2nd Sep) | 10ft (3.0m) 14s |
| Most Powerful | 5AM (Wed 2nd Sep) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Fish Boma over the next 16 days.
The Lowdown
Alright, Rusty here in feet and miles. Let's get into it.
The next two weeks have a bit of everything, but the standout is the big pulse of energy rolling in around the second weekend. A solid run of building surf through next week, but there are a few rough patches. Let’s go day by day.
It starts promising late Saturday, 29 August. The morning is a write-off – cloudy, cross-on breeze, a weak 3ft south swell with poor conditions. By the afternoon, it turns glassy. A clean 2ft SW swell rolls in, 13-second period, moderate energy. The water is about 60°, which is around 3° colder than normal – feels chilly. That Saturday arvo at Fish Boma is clean and small, good for a longboard.
Sunday the 30th lifts. Morning has 7ft of SW swell (10 seconds), but it’s cross-on. Still, wave energy is strong (1068). The afternoon pays off again – glassy, 7ft of SW groundswell (12 seconds), energy at 1191. That’s excellent for experienced surfers.
Monday morning: offshore SSW breeze, 5ft south-west swell. Afternoon goes glassy with a solid 5ft wave. Good midweek sneaky session.
Tuesday the 1st of September holds 7-8ft SW swell, but cross-on wind all day. The energy is huge (1960), but the surface chop ruins it for paddle surfing.
Wednesday the 2nd: morning has 10ft SW swell (13 seconds) with massive wave energy (3027). Cross-on wind, expert territory only. Afternoon drops to 8ft, still heavy.
Thursday the 3rd is a total washout. Strong cross-on wind, rain, lumpy. Friday the 4th, also messy.
The big standout: Saturday the 5th of September. Light offshore-cross wind, clean 5-6ft SSW swell over the day, energy strong. South swell, optimum south direction – it’s a match. Clean, well-shaped, great for intermediates. Fish Boma has the cleanest conditions of the first week.
Sunday the 6th morning is special. Pure NE offshore wind, 7ft SSW swell with a crazy long 16-second period, energy cranked at 2753. This is proper groundswell on a reef. Experts only, but world-class potential. Arvo gets sloppy.
Monday the 7th drops to 3-4ft with 16-second period, cross-shore. Energy still high. Afternoon goes offshore and clean with 5ft SW swell.
From Tuesday the 8th to Wednesday the 9th, it’s small and messy – 4ft dropping to 2ft, onshore wind. Classic lull.
Then Thursday the 10th of September: massive morning. 15ft easterly swell, short 10-second period, wave energy off the charts at 7051. Cross-shore strong wind. This is dangerous, expert-only. Afternoon drops to 12ft, still huge.
Friday the 11th of September is the best of the final run. Offshore-cross wind, 6ft ESE swell at 11 seconds, clean. Energy is high (1604). Arvo holds at 5ft, clean. Solid.
From Saturday the 12th onward, swell swings back to southwest with long periods (14-15 seconds), cross-on or onshore breeze. Waves hold at 5-7ft, but quality drops. Energy stays strong.
Best on offer: Saturday the 5th of September and Friday the 11th of September at Fish Boma. Clean, solid swell, direction locked in. Sunday the 6th morning is for experts only.
Stay safe.
- Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Very mild (max 17°C on Sat afternoon, min 11°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Thu morning. Very mild (max 17°C on Wed morning, min 11°C on Tue morning). Mainly fresh winds. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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 11 | SW 13 | SW 10 | SW 10 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 12 | SW 13 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SSW 12 | SW 11 | SSW 12 | SSW 12 | SSW 11 |
Wave Graph | |||||||||||||||||||||
251 | 175 | 530 | 745 | 1130 | 826 | 675 | 563 | 696 | 1102 | 1942 | 3348 | 3020 | 2494 | 1847 | 1083 | 1158 | 741 | 1194 | 905 | 724 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-on | cross-on | glassy | cross-off | on | glassy | glassy | cross-on | cross-on | cross-off | cross-on | cross | glassy | cross-on | cross | cross | cross | cross-off | cross-off |
High Tide | 4:26PM1.89m | 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 | 10:13AM0.01m | 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 | — | — | 6:50 | — | — | 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 | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 9 | 2 | — | — | — |
Temp °C | 16 | 17 | 16 | 14 | 14 | 13 | 15 | 16 | 12 | 14 | 15 | 14 | 17 | 17 | 15 | 15 | 13 | 15 | 16 | 16 | 14 |
Feels °C | 16 | 15 | 15 | 11 | 11 | 11 | 13 | 13 | 11 | 12 | 13 | 12 | 16 | 15 | 14 | 15 | 7 | 11 | 10 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | S 11 | SSE 11 | SW 14 | SW 10 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 12 | SW 13 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SSW 12 | SW 11 | SSW 12 | SSW 12 | SSW 11 |
251 | 167 | 241 | 745 | 1130 | 826 | 675 | 563 | 696 | 1102 | 1942 | 3348 | 3020 | 2494 | 1847 | 1083 | 1158 | 741 | 1194 | 905 | 724 | |
Swell 2 Height (m) Direction Period (s) | E 11 | SW 13 | E 12 | SW 13 | E 11 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 7 | SSW 16 | SSW 15 | WSW 12 | S 15 | S 15 |
154 | 175 | 95 | 257 | 41 | 21 | 21 | 37 | 33 | 31 | 18 | 17 | 7 | 6 | 6 | 15 | 256 | 485 | 211 | 283 | 343 | |
Swell 3 Height (m) Direction Period (s) | SW 13 | E 11 | SSE 11 | E 12 | SSE 10 | SSE 10 | SSE 11 | SSE 10 | SE 10 | — | — | — | — | — | — | S 19 | E 6 | E 6 | S 16 | WSW 11 | WSW 11 |
162 | 121 | 66 | 66 | 20 | 10 | 11 | 10 | 4 | — | — | — | — | — | — | 30 | 31 | 17 | 245 | 85 | 71 | |
Wind waves Height (m) Direction Period (s) | WSW 4 | SW 4 | SW 10 | — | — | — | — | — | — | — | — | — | — | SE 4 | — | SSE 6 | — | SE 5 | SE 6 | ESE 6 | ESE 6 |
11 | 13 | 530 | — | — | — | — | — | — | — | — | — | — | 31 | — | 159 | — | 66 | 284 | 272 | 273 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 0 | 4 | 3 | 0 | 0 | 3 | 0 | 0 | 3 | 3 | 0 | 16 | 16 | 0 | 43 | 3 | 596 | 849 | 415 | 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.











