Surf Forecasts:
Jongensfontein surf forecast from 17 Aug 2026:
- Best quality surf: Thursday 20 Aug, 8AM (local time) - 10ft (3.0m), 13s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 8AM (local time) - 10ft (3.0m), 13s period, SSW swell with 3,478 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 11PM (local time) - 5ft (1.6m), 14s period with SW swell.
Best Forecast Surf Conditions for Jongensfontein this week:
The surf forecast for Jongensfontein over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 11PM. The primary swell is predicted to be 1.6m and 14s period with a secondary swell of 0.6m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Jongensfontein in the next 16 days are 3.0m 13s and forecast to arrive on Thursday (Aug 20) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Wednesday (Aug 19) at 11PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 17th Aug) | 5ft (1.6m) 14s |
| Best Surf | 8AM (Thu 20th Aug) | 10ft (3.0m) 13s |
| Most Powerful | 8AM (Thu 20th Aug) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Jongensfontein over the next 16 days.
The Lowdown
G'day, Rusty here, and I've got the lowdown on the next few weeks at Jongensfontein. The water's sitting at 60°F which is a touch cooler than usual for this time of year, but nothing to get too worked up about. We've got a solid run of surf coming, but you've gotta pick your moments.
The action kicks off this Monday morning, 17 August. It's not the biggest, but the conditions are a treat. The swell is a clean 5ft from the SW, with a lovely 13-second period that's gonna wrap around the reef nicely. The wind is a light cross-off from the WNW, and the energy is moderate at 930. It's a cracker of a start to the week.
Monday afternoon gets messy with a stiff 16 mph SW wind that'll chop things up, so don't bother. Tuesday morning, 18 August, is a standout. The swell pulses to 6ft from the SW, still with that juicy 13-second period, and the wind is a light cross-off. The energy jumps to a strong 1124. This is clean, lined-up reef surf for the experienced crew. Tuesday arvo goes onshore, so skip it.
Wednesday morning, 19 August, is another gem. We've got 7ft of SW swell at 12 seconds, light cross-off wind from the W, and strong energy at 1445. Clean, powerful, and for the intermediate to advanced surfer. Wednesday afternoon is a write-off with strong WSW wind.
Thursday morning, 20 August, sees the swell jump to 10ft from the SW, with a massive 3496 energy reading. The wind is light and onshore, but honestly, at this size, this reef is for experts only. It's a big, powerful beast. The rest of the day is blown out.
Friday, 21 August, is a bit of a dud with onshore wind and dropping swell. Saturday, 22 August, shows a glimmer in the morning with 7ft of SW swell at 11 seconds and a cross-off wind. The energy is moderate at 1085, so it's a session for the keen, but not the best of the week.
Sunday morning, 23 August, is a special one. The wind goes glassy, absolutely dead calm, with 6ft of SW swell at 12 seconds. The energy is moderate at 870, but the conditions are flawless. This is a dawny to savour.
Monday, 24 August, starts well with a clean 6ft SW swell and a cross-off wind, but it's not as punchy. Tuesday, 25 August, is another morning worth a look: 8ft of SW swell at 12 seconds, light cross-off, and strong energy at 1655. This is for the experienced crew. After that, things get fluky.
The next real highlight is late in the window. Saturday morning, 29 August, we get 6ft of SW swell at 10 seconds, a cross-off wind, and clean conditions. The energy is moderate at 769. It's a solid, fun session.
Then we get a massive pulse on Sunday, 30 August, with 12ft of SW swell at 12 seconds and a massive 3457 energy. The wind is cross-shore, but for anyone with the skills, this is a monster. It's expert-only territory. The biggest of the run hits on Monday, 31 August: 12ft of SSW swell at 14 seconds, a clean cross-off wind, and a colossal 4918 energy. This is a serious, groundswell-driven swell. The period is very long, so it's going to be a peaky, powerful beast that will save its best for the reef. Again, only for the very experienced.
The best of the best? I'd have to say Tuesday morning, 18 August, and Sunday morning, 23 August. Tuesday for the pumping, clean power, and Sunday for the glassy, flawless conditions. Mark them in your calendar.
Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 19°C on Mon afternoon, min 12°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Sat afternoon, min 11°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 13 | SW 12 | SSW 11 | SSW 11 | SSW 11 | SW 12 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 |
Wave Graph | ||||||||||||||||||||
721 | 872 | 1154 | 1703 | 1682 | 1415 | 1240 | 956 | 3436 | 2444 | 1392 | 891 | 726 | 645 | 1214 | 1885 | 1451 | 923 | 696 | 515 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | on | cross-on | cross | cross-off | off | cross | on | cross | on | cross-on | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-off |
High Tide | 6:20PM1.86m | 6:33AM1.60m | 6:50PM1.68m | 7:05AM1.43m | 7:23PM1.49m | 7:45AM1.27m | 8:14PM1.32m | 9:33AM1.14m | 10:47PM1.22m | 12:35PM1.21m | 00:45AM1.33m | 1:31PM1.37m | 1:33AM1.48m | |||||||
Low Tide | 00:34AM0.42m | 12:31PM0.47m | 1:04AM0.58m | 12:59PM0.65m | 1:41AM0.74m | 1:36PM0.82m | 2:50AM0.88m | 3:09PM0.96m | 6:14AM0.88m | 6:46PM0.91m | 7:25AM0.73m | 7:39PM0.75m | ||||||||
— | — | 7:11 | — | — | 7:09 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:05 | — | — | |
6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 14 | 14 | 14 | 13 | 14 | 15 | 13 | 13 | 14 | 13 | 14 | 15 | 13 | 15 | 18 | 16 | 15 | 15 | 13 |
Feels °C | 17 | 13 | 12 | 12 | 10 | 13 | 12 | 9 | 11 | 11 | 10 | 13 | 13 | 11 | 11 | 15 | 14 | 15 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 13 | SW 12 | SSW 11 | SSW 11 | SSW 11 | SW 12 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 |
721 | 872 | 1154 | 1703 | 1682 | 1415 | 1240 | 956 | 3436 | 2444 | 1392 | 891 | 726 | 645 | 1214 | 1885 | 1451 | 923 | 696 | 515 | |
Swell 2 Height (m) Direction Period (s) | E 9 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | SW 7 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | — | — | — | — | E 8 |
85 | 79 | 55 | 52 | 31 | 30 | 17 | 138 | 7 | 6 | 6 | 6 | 6 | 2 | 1 | — | — | — | — | 1 | |
Swell 3 Height (m) Direction Period (s) | E 10 | — | — | — | — | — | — | E 9 | — | — | — | E 8 | E 8 | E 9 | — | — | — | — | — | — |
50 | — | — | — | — | — | — | 16 | — | — | — | 6 | 6 | 6 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 78 | 0 | 0 | 141 | 121 | 8 | 78 | 0 | 8 | 141 | 121 | 153 | 78 | 8 | 8 | 78 | 0 | 0 | 8 | 0 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||
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Information about the Jongensfontein Surf forecast
The above surf forecast table for Jongensfontein provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jongensfontein can be found by selecting the local surf guide option on the grey menu. Our Jongensfontein 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 (Jongensfontein) 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 Jongensfontein 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 Overberg? If you are looking for accommodation near Jongensfontein, camping, hotels and holiday cottages in Overberg, consider staying in Riversdale which is 39 km (24 miles) away. Alternatively, find information about places to stay and car hire in Mossel Bay which is 78 km (48 miles) away











