Surf Forecasts:
Fish Boma surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 16 Aug, 11PM (local time) - 5ft (1.6m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 11PM (local time) - 10ft (3.0m), 13s period, SSW swell with 2,964 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 5PM (local time) - 4ft (1.2m), 12s 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 Sunday (Aug 16) at 5PM. The primary swell is predicted to be 1.2m and 12s period with a secondary swell of 0.6m and 16s. 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 Thursday (Aug 20) at 11PM. Winds are predicted to be cross-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 Friday (Aug 21) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 16th Aug) | 4ft (1.2m) 12s |
| Best Surf | 11PM (Sun 16th Aug) | 5ft (1.6m) 15s |
| 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
Alright folks, Rusty here. Let's talk about what's shaping up. This 16-day run has a slow start but some real heavy hitters if you can wait.
First thing to know: the water temp at Fish Boma is a chilly 57°F, which is a massive 6°F below normal for this time of year. That's freakishly cold, so double up on the rubber.
Your absolute best bet for the whole period is Monday, August 24th. Fish Boma is going to be on fire. We're looking at a 12ft SSW groundswell with a long 16-second period and glassy conditions. That's well over 8ft, so it's for the experienced boys and girls only. The combined energy is a massive 5822, and it's gonna look like a machine.
Before that big day, there's a few solid windows. Monday morning, August 17th is a cracker—a clean 7ft SW swell (13-second period) with no wind and an energy of 1722. Perfect for the intermediate to advanced crew. Thursday morning, August 20th also delivers with a 8ft SW swell (13 seconds) and glass, packing a punch at 2257 energy.
Saturday, August 22nd is a write-off for paddling. You've got a solid 7ft swell, but a fresh 22 mph cross-onshore breeze is gonna turn it into a washing machine. Might be a kite day.
The very end of the run has some big numbers. Sunday, August 30th has a monster 13ft SW groundswell with a 17-second period and an energy reading of 8003. That's heavy, but the wind is a moderate cross-onshore. Monday the 31st drops to 10ft with nicer cross-offshore wind. Those are long-range calls, so take 'em with a grain of salt, but they look tasty.
Get your wax ready for that 24th. Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Mon afternoon, min 13°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°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 | Saturday 22 | |||||||||||||||
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) | 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 13 | SSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 590 | 428 | 1229 | 1613 | 1288 | 990 | 1360 | 1474 | 1960 | 1721 | 1576 | 1298 | 2242 | 2742 | 2757 | 1472 | 1142 | 677 | 593 | 1250 | 2124 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-off | glassy | cross | glassy | cross-on | glassy | cross-off | cross-on | cross-on | cross | glassy | cross | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 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 | 12:37PM1.04m | 00:51AM1.16m | ||||||||
Low Tide | 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 | 6:04AM0.77m | 6:39PM0.79m | ||||||||
 |  |  |  | |  | | | | | | | | | | | | | | |  | |
 | 7:05 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — |
 | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 17 | 17 | 15 | 18 | 19 | 15 | 15 | 15 | 14 | 16 | 16 | 15 | 15 | 16 | 13 | 17 | 18 | 14 | 19 | 19 | 14 |
Feels °C | 15 | 15 | 13 | 17 | 18 | 15 | 15 | 15 | 14 | 15 | 15 | 15 | 14 | 14 | 11 | 16 | 16 | 12 | 15 | 13 | 8 |
Swell 1 Height (m) Direction Period (s) | 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 13 | SSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 12 |
| kJ | 590 | 428 | 1229 | 1613 | 1288 | 990 | 1360 | 1474 | 1960 | 1721 | 1576 | 1298 | 2242 | 2742 | 2757 | 1472 | 1142 | 677 | 593 | 1250 | 2124 |
Swell 2 Height (m) Direction Period (s) | 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 | E 5 | E 8 | — |
| kJ | 108 | 155 | 69 | 109 | 110 | 81 | 55 | 50 | 31 | 30 | 16 | 15 | 15 | 6 | 6 | 6 | 6 | 2 | 2 | 5 | — |
Swell 3 Height (m) Direction Period (s) | S 11 | SW 4 | E 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | E 9 | E 9 | E 8 | — | — |
| kJ | 2 | 9 | 38 | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | WSW 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 4 | — | WSW 3 | WSW 4 | — | — |
| kJ | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | 3 | 26 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 3 | 0 | 0 | 0 | 16 | 0 | 3 | 0 | 0 | 3 | 3 | 1 | 0 | 16 | 0 | 3 | 3 | 1 | 3 | 404 | 77 |
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.
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