Surf Forecasts:
Fish Boma surf forecast from 31 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 11PM (local time) - 10ft (3.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 6 Sep, 11AM (local time) - 8ft (2.5m), 17s period, SSW swell with 3,786 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 8PM (local time) - 5ft (1.5m), 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 Monday (Aug 31) at 8PM. The primary swell is predicted to be 1.5m 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 2.5m 17s and forecast to arrive on Sunday (Sep 06) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Thursday (Sep 03) at 2AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 31st Aug) | 5ft (1.5m) 11s |
| Best Surf | 11PM (Tue 1st Sep) | 10ft (3.0m) 14s |
| Most Powerful | 11AM (Sun 6th Sep) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Fish Boma over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what's shaping up at Fish Boma. It's a reef break, breaks pretty consistently, and it's wide open to any swell coming from the south, which is its best direction. The water is running about 59°, which is a touch colder than it should be this time of year, so you'll need a good wetsuit.
The month kicks off with a pretty weak start. Monday, August 31st, has some 5-foot swell from the southwest, but don't get your hopes up; the conditions are marginal. The combined energy reading is only 625, so it's not got much punch.
Things ramp up on Tuesday, September 1st. A bigger SW groundswell moves in, hitting 8 feet in the morning with a 12-second period, and then building to 8 feet in the afternoon with 13 seconds. The combined energy jumps to 2414 by the afternoon. But the wind is onshore, so the surface is going to be a bit bumpy.
The real standout, and I mean the one to circle on the calendar, is Wednesday morning, September 2nd. The swell is a solid 10 feet from the southwest, with a deep 13-second period, and the combined swell energy is a powerful 2982. What makes it special is the wind – it's absolutely glassy, not a breath of air. That's pure, clean power on a reef, but anything over 8 feet is for experts only.
After that, things get messy. Thursday, September 3rd, has a jumbled 13-foot S swell in the afternoon, but the period is short at 9 seconds, and a fresh onshore breeze is going to make it lumpy and tough. The energy is still high at 2924, but the quality is shot. This setup looks more interesting for kite surfing than a paddle session.
The next week is a mixed bag of cross-shore winds and fading, short-period swells. Saturday, September 5th, has a weak 7-foot ESE swell, but it's choppy and not worth the drive.
Then Sunday, September 6th, throws in a very long-period SSW groundswell at 17 seconds. It starts the morning at 8 feet (combined energy of 3932) and drops to 7 feet in the afternoon. That kind of period will wrap nicely into the reef. The wind turns cross-offshore in the afternoon, cleaning it right up. It's a good, powerful option, though that very long period can make it a bit walled-up.
The next real gem is Tuesday morning, September 8th. You've got a clean 7-foot E swell, but the wind is offshore from the NNE at 15 mph. The combined energy is moderate at 1000, but that offshore wind will groom it perfectly for the reef. Another one for the experienced crew.
After that, the swell really drops off. Wednesday, September 9th, has a small 4-foot clean wave, but the energy is low. The rest of the forecast into mid-September is small, weak, and mostly blown out by cross or onshore winds. Not much to write home about.
So here's the call: if you want the best, you get up early on Wednesday, September 2nd. That 10-foot glassy groundswell is the one. For a slightly smaller, cleaner option with a good offshore wind, look at Tuesday morning, September 8th.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu morning. Very mild (max 17°C on Wed afternoon, min 11°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 46mm), heaviest during Thu afternoon. Very mild (max 18°C on Fri afternoon, min 13°C on Fri night). Winds decreasing (fresh winds from the SE on Thu afternoon, light winds from the E by Sun morning). | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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) | SW 11 | SW 11 | SW 12 | SW 13 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | S 9 | SSE 10 | ESE 10 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | SSW 17 | SSW 17 | SSW 15 | ESE 8 |
Wave Graph | ||||||||||||||||||||
573 | 851 | 1576 | 2381 | 3523 | 2975 | 2436 | 1791 | 798 | 2528 | 3137 | 2009 | 1376 | 931 | 547 | 383 | 719 | 3786 | 1972 | 974 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | on | on | cross-off | glassy | cross | glassy | cross-on | cross-on | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross-off | cross-off |
High Tide | 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 | 9:53AM1.10m | 10:59PM1.21m | 12:15PM1.21m | 00:43AM1.33m | |||||||
Low Tide | 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 | 4:09PM0.71m | 5:49AM0.61m | 6:29PM0.60m | ||||||||
— | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | |
6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | |
mm | — | — | — | — | — | — | — | — | 3 | 25 | 19 | 1 | — | — | — | — | — | 1 | 1 | — |
Temp °C | 15 | 12 | 15 | 15 | 12 | 16 | 17 | 14 | 15 | 15 | 16 | 17 | 18 | 15 | 17 | 18 | 16 | 16 | 16 | 15 |
Feels °C | 12 | 12 | 14 | 14 | 11 | 15 | 14 | 13 | 14 | 14 | 10 | 11 | 12 | 10 | 13 | 14 | 13 | 15 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 12 | SW 13 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 | SW 12 | S 9 | S 9 | SSW 9 | SSW 11 | SSW 10 | SSW 17 | SSW 17 | SSW 15 | SSW 13 |
573 | 851 | 1576 | 2381 | 3523 | 2975 | 2436 | 1791 | 798 | 382 | 205 | 731 | 209 | 73 | 260 | 269 | 719 | 3786 | 1972 | 756 | |
Swell 2 Height (m) Direction Period (s) | SSE 7 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | S 8 | E 9 | SSW 10 | WSW 12 | SSW 9 | SW 10 | SW 10 | WSW 10 | SSW 10 | — | — | SSW 13 |
15 | 33 | 32 | 33 | 17 | 7 | 6 | 6 | 182 | 14 | 179 | 119 | 158 | 89 | 26 | 42 | 218 | — | — | 808 | |
Swell 3 Height (m) Direction Period (s) | E 11 | S 10 | — | — | — | — | — | — | E 9 | — | — | SW 12 | SW 11 | S 13 | — | S 21 | WSW 10 | — | — | — |
37 | 2 | — | — | — | — | — | — | 6 | — | — | 142 | 121 | 92 | — | 9 | 40 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 4 | WSW 3 | S 9 | SSE 10 | ESE 10 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 6 | ESE 6 | ESE 8 |
— | — | — | — | — | — | — | 6 | 3 | 2528 | 3137 | 2009 | 1376 | 931 | 547 | 383 | 261 | 146 | 406 | 974 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 41 | 0 | 3 | 3 | 0 | 0 | 16 | 0 | 3 | 498 | 473 | 1656 | 3477 | 0 | 379 | 412 | 0 | 16 | 16 | 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.











