
Surf Forecasts:
Fish Boma surf forecast from 14 Sep 2026:
- Best quality surf: Sunday 20 Sep, 8AM (local time) - 10ft (3.0m), 11s period, ESE swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 5AM (local time) - 8ft (2.5m), 14s period, SW swell with 2,985 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 8AM (local time) - 8ft (2.5m), 10s period with ESE 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 (Sep 14) at 8AM. The primary swell is predicted to be 2.5m and 10s period with a secondary swell of 1.3m and 13s. 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 14s and forecast to arrive on Wednesday (Sep 16) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Mon 14th Sep) | 8ft (2.5m) 10s |
| Best Surf | 8AM (Sun 20th Sep) | 10ft (3.0m) 11s |
| Most Powerful | 5AM (Wed 16th Sep) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for Fish Boma over the next 16 days.
The Lowdown
Right, listen up. Rusty here. Let's have a proper look at the only wave in town for the next couple of weeks: Fish Boma. It's a reef setup, so it's all about the tide and the direction.
Overall, this is a bit of a mixed bag. We've got some serious energy coming through, but the wind and the swell direction aren't always playing ball. The water's sitting at 60°, which is a bit colder than we'd expect for this time of year, so don't be shy with the rubber.
The whole period starts with a bang on Monday the 14th. Monday morning is the real standout. We're looking at a 8ft swell from the ESE, with a 10-second period. That's a heap of energy (1540), and with a light cross-offshore breeze from the ENE, it's going to be clean, lined-up, and proper. This is solid intermediate territory, and even experienced surfers will be frothing. Just a heads-up, the crowds can be a factor here occasionally, but for waves like this, it's worth it.
The quality drops off Monday afternoon as the wind swings onshore. Tuesday the 15th is interesting though. The swell drops to 5ft from the E, but Tuesday morning is glassy. Absolutely flat calm. That’s rare and the 11-second period will be giving them some shape. It'll be a smaller, more forgiving session.
Then things get messy. Wednesday the 16th sees a massive jump in energy (2670) with an 8ft SW swell, but the wind is cross-on and it's carrying a lot of rain. The 14-second period is a proper groundswell, but this reef might get a bit shifty and shut down. It's expert territory at that size in those winds.
We get a window of cleaner conditions on Thursday the 17th with a good 8ft SW swell and a cross-off wind, but the energy is still high (2244) and the wind is blowing 12 mph. It's doable, but not the perfection of Monday.
Friday the 18th morning is a write-off with a fresh 22 mph cross-shore wind. Friday afternoon gets a 10ft ESE windswell with an 8-second period, but again the wind is howling. That's more of a kite-surfing setup than a clean paddle session.
The weekend of the 19th and 20th is a right-off for surfing. Huge 12ft to 13ft ESE slop with strong cross and onshore winds. The energy readings are screaming (2904). That's for experts or those with a death wish, and the onshores will make it a brutal closeout.
After that, things settle. We have a gap of a few days of average to poor conditions. There's a glimmer on Monday the 21st with a clean, smaller 4ft swell, but the wind is cross-on. The 22nd and 23rd are mostly onshore and average.
The next real standout is further out, on Friday the 25th. The morning session shows a clean 6ft E swell with a 10-second period and a light cross-off wind. The energy is moderate (1047), and it's flagged as excellent surf for experienced surfers. That's a promising, clean day to circle on the calendar, but being 11 days out, it's a 'keep an eye on it' call.
The end of the month from the 27th shows a mixed bag of wind and swell. The 28th Monday has a big 12ft WSW windswell on the cards, but it's a short 9-second period and strong cross-off winds, so it'll be all about finding the right bank.
So, for the best bet: jump on Monday the 14th morning. If that's too far away, Friday the 25th morning is your best long-range hope. There are some big, clean swells in between, but the wind is the enemy.
Rusty.
Short Range ForecastHeavy rain (total 32mm), heaviest during Mon night. Warm (max 20°C on Tue morning, min 13°C on Wed morning). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 29mm), heaviest during Sat night. Very mild (max 17°C on Sat afternoon, min 12°C on Thu morning). Winds decreasing (fresh winds from the ESE on Fri night, calm by Sat night). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
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) | ESE 10 | ESE 10 | E 10 | E 11 | E 11 | SW 11 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 10 | ESE 11 | ESE 10 | SE 10 |
Wave Graph | |||||||||||||||||||||
1061 | 889 | 632 | 524 | 410 | 828 | 2562 | 878 | 1591 | 1846 | 1415 | 961 | 611 | 919 | 1313 | 1951 | 2431 | 1593 | 1944 | 1221 | 1351 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross-off | glassy | cross-off | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | on | on | cross-on |
High Tide | 5:18PM1.77m | 5:32AM1.58m | 5:45PM1.63m | 5:58AM1.45m | 6:11PM1.47m | 6:25AM1.31m | 6:38PM1.31m | 6:56AM1.16m | 7:13PM1.15m | 8:00AM1.01m | 9:23PM1.02m | 12:12PM1.04m | 00:26AM1.10m | ||||||||
Low Tide | 11:05AM0.12m | 11:29PM0.18m | 11:31AM0.24m | 11:54PM0.31m | 11:57AM0.38m | 00:21AM0.45m | 12:24PM0.53m | 00:52AM0.59m | 12:56PM0.68m | 1:44AM0.74m | 2:09PM0.83m | 5:05AM0.80m | 6:23PM0.81m | ||||||||
6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | |
— | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | |
mm | 3 | 1 | 13 | — | — | 3 | 5 | 5 | 2 | 4 | 3 | 4 | 2 | 1 | — | 5 | 2 | 8 | 19 | 43 | 6 |
Temp °C | 19 | 19 | 16 | 20 | 20 | 18 | 13 | 14 | 14 | 13 | 14 | 14 | 15 | 16 | 16 | 16 | 17 | 17 | 18 | 17 | 17 |
Feels °C | 21 | 20 | 16 | 19 | 19 | 17 | 9 | 11 | 11 | 9 | 10 | 10 | 9 | 10 | 10 | 11 | 13 | 16 | 18 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | E 10 | E 11 | E 11 | SW 15 | SW 14 | SW 9 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | ESE 10 | ESE 11 | ESE 10 | SE 10 |
1061 | 889 | 632 | 524 | 410 | 763 | 2562 | 612 | 1591 | 1846 | 1415 | 961 | 611 | 589 | 834 | 643 | 473 | 1593 | 1944 | 1221 | 1351 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | E 11 | E 10 | SW 14 | SSE 7 | — | E 11 | E 10 | — | S 8 | SSW 18 | SSW 16 | — | SW 12 | SW 13 | SW 14 | SW 12 |
479 | 373 | 224 | 224 | 202 | 231 | 108 | 878 | 96 | — | 35 | 33 | — | 22 | 31 | 171 | — | 473 | 570 | 878 | 619 | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 7 | SSW 16 | SSW 18 | S 12 | — | E 10 | E 10 | — | — | — | — | — | — | — | — | — | SSW 17 | — | S 12 |
— | — | 64 | 49 | 204 | 3 | — | 100 | 72 | — | — | — | — | — | — | — | — | — | 159 | — | 3 | |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | — | — | — | SW 11 | — | S 7 | — | ESE 6 | ESE 6 | ESE 6 | ESE 7 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | — | — | S 8 | — |
— | 4 | — | — | — | 828 | — | 113 | — | 398 | 175 | 127 | 389 | 919 | 1313 | 1951 | 2431 | — | — | 282 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 3 | 0 | 0 | 0 | 175 | 3 | 16 | 0 | 16 | 16 | 16 | 863 | 849 | 783 | 16 | 16 | 16 | 40 | 183 | 3 |
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.










