Surf Forecasts:
The Heads surf forecast from 17 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11AM (local time) - 11ft (3.5m), 13s period, SSW swell with cross-onshore winds.
- Most powerful swell: Thursday 20 Aug, 11AM (local time) - 11ft (3.5m), 13s period, SSW swell with 4,374 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 5AM (local time) - 6.5ft (2.0m), 14s period with SW swell.
Best Forecast Surf Conditions for The Heads this week:
The surf forecast for The Heads over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 5AM. The primary swell is predicted to be 2.0m and 14s period with a secondary swell of 0.8m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at The Heads in the next 16 days are 3.5m 13s and forecast to arrive on Thursday (Aug 20) at 11AM. 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+) | 5AM (Mon 17th Aug) | 6.5ft (2.0m) 14s |
| Best Surf | 11AM (Thu 20th Aug) | 11ft (3.5m) 13s |
| Most Powerful | 11AM (Thu 20th Aug) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for The Heads over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s on the cards for The Heads over the next couple of weeks. We’ve got a bit of an up-and-down run, with some proper size windows mixed with days you might be better off doing something else.
It kicks off Monday the 17th of August with a clean start. The swell is a solid 7ft from the SW, and the period is a nice long 13 seconds, giving it some proper push. The read on the combined energy is strong (1788), and with the wind glassed out, it’s going to be smooth out there. This is classic groundswell, so expect those long lines and lulls between sets. This is excellent for anyone who knows what they’re doing, but at 7ft, beginners might find it a handful. Tuesday the 18th shapes up well too, especially the afternoon with a touch bigger swell at 8ft from the SW, still that long 13-second period, and glassy conditions again. The energy is hefty (1747). If you can get out for that afternoon session, it’s going to be choice.
Wednesday the 19th gets blown around a bit with a cross-shore wind, making things lumpy. The swell holds around 8ft to 8ft from the SW, period dropping a touch to 12 seconds, but the wind ruins the shape. Thursday the 20th is a day for experts only, full stop. We’re looking at 12ft from the SSW, which is a heap of water. The energy numbers spike hard (3987), but it’s just too big for this break. The wind switches to a cross-onshore too, so it’ll be a washing machine.
Friday the 21st looks like the pick of the first week. The swell drops back to a more manageable 7ft from the SW, period at 12 seconds, and the morning has glassy conditions with a light SE flow. The energy is still pumping (1353). This is the day to call in sick for. It’s clean, it’s got power, and it’s not insane. Saturday the 22nd is a write-off with messy cross and cross-onshore winds, and Sunday the 23rd we see another massive pulse of 13ft from the SSW, energy hitting 5049. That’s way too big for paddle surfing here. The setup looks more interesting for kite surfing than paddle surfing on those days.
Next week, from Monday the 24th through Wednesday the 26th, we’ve got solid swell hanging around (7ft to 8ft from the S and SSW), but the wind is mostly cross-onshore or cross-shore with some lumpy texture. The period stays long on the 26th (16 seconds), but the wind chop will spoil the party. By Thursday the 27th and Friday the 28th, it drops in size (6ft to 7ft) but the wind is still tricky. The combined energy falls into the moderate zone (around 1066), so it’s weak and wonky.
Long range into late August and the start of September, it gets messy. Strong winds and rain showers show up, with the swell fluctuating. That Saturday the 29th sees 30 km/h winds and a 10ft swell with a short 8-second period – a total no-go. The energy is still moderate, but the quality is poor. By Monday the 1st of September, there’s a pulse of 8ft from the SSW with a 14-second period, but the cross-shore wind will keep it from being epic.
The standouts here are Monday morning the 17th and Friday morning the 21st. Both have that clean, glassy look with proper SW groundswell and good energy. That Friday is the real winner if you ask me – it’s not too big, it’s clean, and it’s got plenty of grunt.
Water temp is about average for this time of year, nothing wild.
Crowds at The Heads can show up sometimes, so on those good days, get there early.
Stay stoked.
- Rusty
Short Range ForecastMostly dry. Very mild (max 19°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 12°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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 13 | SW 13 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph | |||||||||||||||||||||
1613 | 1182 | 1105 | 1247 | 1670 | 2077 | 1860 | 1602 | 1500 | 4374 | 3853 | 2124 | 1323 | 1065 | 821 | 836 | 1472 | 2183 | 1777 | 1500 | 1348 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-off | cross-on | glassy | cross-off | cross | cross | cross-off | cross-on | cross-on | cross-off | on | on | cross-off | cross | cross-on | cross-off | on | on | glassy |
High Tide | 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 | 1:37PM1.19m | 1:41AM1.29m | ||||||||
Low Tide | 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 | 7:27AM0.63m | 7:40PM0.65m | ||||||||
7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | |
— | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 19 | 15 | 16 | 15 | 13 | 17 | 17 | 14 | 15 | 16 | 13 | 17 | 16 | 14 | 15 | 16 | 14 | 17 | 17 | 13 |
Feels °C | 17 | 17 | 13 | 15 | 13 | 12 | 16 | 15 | 12 | 13 | 14 | 12 | 16 | 15 | 13 | 13 | 14 | 12 | 16 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 14 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 13 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
1613 | 1182 | 1105 | 1247 | 1670 | 2077 | 1860 | 1602 | 1500 | 4374 | 3853 | 2124 | 1323 | 1065 | 821 | 836 | 1472 | 2183 | 1777 | 1500 | 1348 | |
Swell 2 Height (m) Direction Period (s) | 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 | E 9 | E 8 | E 8 | — | — | SSW 14 | WSW 12 |
111 | 110 | 81 | 55 | 33 | 31 | 30 | 16 | 16 | 6 | 6 | 6 | 6 | 6 | 1 | 1 | 1 | — | — | 220 | 57 | |
Swell 3 Height (m) Direction Period (s) | E 10 | — | — | — | — | — | — | — | — | — | — | — | — | E 9 | E 8 | E 8 | — | — | — | — | — |
64 | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | 1 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 7 | — | — | — | — | — | WSW 3 | WSW 5 | — | — | — | — | — |
— | — | — | — | — | — | — | — | 159 | — | — | — | — | — | 3 | 44 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 7 | 7 | 0 | 8 | 26 | 0 | 0 | 0 | 0 | 7 | 8 | 8 | 8 | 26 |
Best forecast wave conditions in Garden Route | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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Information about the The Heads Surf forecast
The above surf forecast table for The Heads provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Heads can be found by selecting the local surf guide option on the grey menu. Our The Heads 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 (The Heads) 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 The Heads 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 The Heads, camping, hotels and holiday cottages in Garden Route, consider staying in Knysna which is 4 km (2 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 28 km (17 miles) away, George, Mossel Bay and Oudtshoorn.











