Surf Forecasts:
Ansteys surf forecast from 18 Aug 2026:
- Best quality surf: Sunday 23 Aug, 2AM (local time) - 11ft (3.5m), 12s period, S swell with cross-shore winds.
- Most powerful swell: Sunday 23 Aug, 5AM (local time) - 10ft (3.0m), 12s period, S swell with 3,035 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 2AM (local time) - 3.5ft (1.0m), 9s period with E swell.
Best Forecast Surf Conditions for Ansteys this week:
The surf forecast for Ansteys over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 2AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.7m and 5s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ansteys in the next 16 days are 3.0m 12s and forecast to arrive on Sunday (Aug 23) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.5m 12s period and expected on Sunday (Aug 23) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 19th Aug) | 3.5ft (1.0m) 9s |
| Best Surf | 2AM (Sun 23rd Aug) | 11ft (3.5m) 12s |
| Most Powerful | 5AM (Sun 23rd Aug) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Ansteys over the next 16 days.
The Lowdown
G’day, Rusty here. It’s a tough run ahead for Ansteys, no two ways about it. The whole 16-day window is pretty much a write-off for a decent paddle. We’ve got a solid week and a half of poor surf conditions, with only a handful of mornings offering anything close to surfable, but they’re still far from good. The pattern starts quiet and stays messy.
Let’s break it down. Tuesday 18 August kicks off with a lumpy, 4 ft east swell, but it’s blown out by a fresh cross-onshore wind at 22 mph. The water’s sitting at 70°, which is about normal for this time of year. That sets the tone. Wednesday and Thursday the 19th and 20th are no better—cross-shore winds and lumpy, choppy conditions. The swell on Thursday jumps to 7 ft from the south, but with a strong breeze cross-onshore, it’s just a mess. The combined energy is moderate (653), but the wind ruins it.
Friday 21 August has a 4 ft south swell with a long period of 13 seconds, so there’s some groundswell energy (527 combined energy), but again, a fresh cross-shore wind kills the quality. The weekend is a write-off too, with a big 8 ft south swell on Sunday 23 August and a combined energy reading of 2307—that’s strong wave energy—but the cross-onshore wind makes it choppy and dangerous. It’s too big for beginners anyway, and only experts would even think about it, but the wind is just wrong.
We get a bit of a breather on Saturday 22 August morning: a 3 ft swell from the east-northeast, light winds from the north-northwest at 6 mph, and the wind state is cross-offshore, so it’s clean. The combined energy is weak (134), and the period is short at 7 seconds, so it’s not going to be any sort of standout. It’s surfable, but barely worth getting wet for.
The second week doesn’t get much better. Monday 25 August has a 6 ft south swell, but fresh cross-onshore winds again. The 28th of August (Friday) morning is the best of a bad lot: a 4 ft south swell, light winds from the south-southeast at 6 mph, and the combined energy is moderate (502). The period is a long 13 seconds, so there’s some groundswell punch, but the wind is still cross-onshore, just light. It’s cleanish, but still marginal. The afternoon of the 30th of August (Sunday) sees a 7 ft south swell with light winds from the south-southeast, and combined energy of 626—again, moderate—but it’s still a cross-onshore wind, so it’s not going to be the clean, lined-up waves we want.
Bottom line: there’s no true standout session here. The only window that might give a few rideable waves is the morning of Saturday 22 August, but it’s small and weak. The long-period groundswells in the second week (like the 28th) have the energy, but the wind direction is never right. For a spot that’s inconsistent and exposed to the east, this is a classic blank run for the area. Honestly, if you’re into kite surfing, the mid-week stronger swells with the strong cross-onshore winds might look more interesting than paddle surfing. Otherwise, keep the board in the car.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Wed afternoon, min 18°C on Tue morning). Winds increasing (calm on Tue night, strong winds from the SSW by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 32°C on Sat morning, min 16°C on Sun morning). Winds decreasing (strong winds from the SSW on Sat night, light winds from the WNW by Sun night). | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | E 9 | E 9 | E 9 | E 9 | E 8 | E 7 | S 8 | S 8 | S 16 | S 13 | S 12 | NE 7 | ENE 7 | S 6 | S 12 | S 14 | S 15 | S 14 | S 12 | S 11 | S 11 |
Wave Graph | |||||||||||||||||||||
246 | 164 | 159 | 117 | 89 | 142 | 608 | 338 | 1078 | 503 | 251 | 331 | 104 | 136 | 3017 | 2299 | 2720 | 1304 | 544 | 298 | 229 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | cross | cross-off | cross-on | cross-on | cross-on | glassy | cross | cross | cross-off | cross-off | cross-on | cross | cross-on | cross-on | off | cross | cross | glassy |
High Tide | 6:58PM1.71m | 7:05AM1.52m | 7:27PM1.56m | 7:37AM1.37m | 8:04PM1.40m | 8:28AM1.22m | 9:28PM1.25m | 12:11PM1.16m | 00:48AM1.27m | 1:47PM1.32m | 1:52AM1.40m | 2:22PM1.50m | 2:28AM1.55m | ||||||||
Low Tide | 12:42PM0.46m | 1:08AM0.59m | 1:09PM0.61m | 1:41AM0.74m | 1:39PM0.78m | 2:29AM0.89m | 2:31PM0.94m | 5:06AM0.97m | 6:20PM1.00m | 7:26AM0.86m | 7:49PM0.85m | 8:07AM0.70m | 8:27PM0.69m | ||||||||
6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | |
— | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 20 | 20 | 21 | 21 | 19 | 19 | 18 | 19 | 20 | 20 | 32 | 23 | 19 | 18 | 19 | 18 | 18 | 19 | 19 |
Feels °C | 14 | 16 | 19 | 18 | 19 | 21 | 14 | 15 | 17 | 15 | 16 | 17 | 29 | 19 | 12 | 12 | 14 | 17 | 15 | 16 | 19 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 8 | E 7 | E 8 | E 8 | S 16 | S 13 | S 12 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | S 14 | S 15 | S 14 | S 12 | S 11 | S 11 |
246 | 164 | 159 | 117 | 89 | 142 | 33 | 22 | 1078 | 503 | 251 | 158 | 104 | 48 | 24 | 2299 | 2720 | 1304 | 544 | 298 | 229 | |
Swell 2 Height (m) Direction Period (s) | S 18 | SW 16 | SSE 5 | SSW 15 | SSW 15 | — | SSW 14 | SSW 14 | E 8 | E 8 | E 8 | S 10 | S 10 | — | — | E 9 | ENE 9 | ENE 9 | ENE 9 | S 15 | ENE 6 |
6 | 11 | 27 | 121 | 121 | — | 73 | 62 | 21 | 21 | 12 | 47 | 30 | — | — | 6 | 8 | 15 | 16 | 40 | 30 | |
Swell 3 Height (m) Direction Period (s) | — | SSW 11 | SW 17 | SE 5 | — | — | NE 7 | NE 7 | — | — | — | SSW 12 | SSW 14 | — | — | NE 7 | — | — | — | E 9 | E 9 |
— | 11 | 11 | 6 | — | — | 12 | 2 | — | — | — | 30 | 38 | — | — | 2 | — | — | — | 6 | 6 | |
Wind waves Height (m) Direction Period (s) | SSW 6 | S 6 | — | — | ENE 4 | SSW 15 | S 8 | S 8 | — | NE 3 | ENE 5 | NE 7 | WNW 2 | S 6 | S 12 | SSW 13 | — | — | NE 6 | ENE 3 | — |
176 | 102 | — | — | 24 | 331 | 608 | 338 | — | 3 | 80 | 331 | 1 | 136 | 3017 | 5020 | — | — | 2 | 4 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 218 | 163 | 0 | 6 | 6 | 129 | 396 | 321 | 0 | 688 | 729 | 10 | 0 | 163 | 8 | 321 | 277 | 0 | 6 | 6 | 0 |
Best forecast wave conditions in Durban/KwaZulu-Natal South Coast | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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Information about the Ansteys Surf forecast
The above surf forecast table for Ansteys provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ansteys can be found by selecting the local surf guide option on the grey menu. Our Ansteys 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 (Ansteys) 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 Ansteys 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 Durban/KwaZulu-Natal South Coast? If you are looking for accommodation near Ansteys, camping, hotels and holiday cottages in Durban/KwaZulu-Natal South Coast, consider staying in Durban which is 5 km (3 miles) away. Other places in and around Durban/KwaZulu-Natal South Coast where you can find information about places to rent, and car hire include Glenwood which is 7 km (4 miles) away, Umlazi, Kwamashu and Umhlanga.











