Surf Forecasts:
Arniston surf forecast from 15 Nov 2026:
- Best quality surf: Sunday 22 Nov, 8PM (local time) - 7ft (2.1m), 12s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 23 Nov, 8PM (local time) - 15ft (4.5m), 13s period, SSW swell with 7,284 kJ wave energy.
- Next surfable swell (1★+): Wednesday 18 Nov, 11PM (local time) - 5.5ft (1.7m), 8s period with ESE swell.
Best Forecast Surf Conditions for Arniston this week:
The surf forecast for Arniston over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Nov 18) at 11PM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 0.9m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Arniston in the next 16 days are 4.5m 13s and forecast to arrive on Monday (Nov 23) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 5s period and expected on Saturday (Nov 28) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 18th Nov) | 5.5ft (1.7m) 8s |
| Best Surf | 8PM (Sun 22nd Nov) | 7ft (2.1m) 12s |
| Most Powerful | 8PM (Mon 23rd Nov) | 15ft (4.5m) 13s |
Table - best surf conditions forecast for Arniston over the next 16 days.
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 16°C on Tue night). Winds increasing (light winds from the S on Sun night, strong winds from the E by Tue afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Thu morning, min 16°C on Fri night). Winds increasing (light winds from the SE on Wed night, fresh winds from the SW by Thu afternoon). | ||||||||||||||||||
Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | ||||||||||||||
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 | SE 8 | SSW 13 | SSW 13 | SSW 13 | E 7 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | SSW 16 | SW 15 | SW 14 | ESE 12 | SSW 14 | SSW 12 | SSW 12 | SSW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 209 | 144 | 255 | 282 | 351 | 368 | 502 | 494 | 356 | 330 | 358 | 226 | 496 | 432 | 384 | 672 | 473 | 299 | 616 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | on | on | on | cross-on | cross-on | on | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-on |
High Tide | 7:15AM1.32m | 7:23PM1.22m | 8:35AM1.30m | 9:01PM1.17m | 9:59AM1.35m | 10:35PM1.23m | 11:04AM1.46m | 11:39PM1.35m | 11:54AM1.60m | 00:29AM1.48m | 12:38PM1.74m | 1:13AM1.62m | |||||||
Low Tide | 00:39AM0.61m | 1:25PM0.78m | 1:44AM0.68m | 3:01PM0.79m | 3:10AM0.70m | 4:31PM0.70m | 4:30AM0.66m | 5:33PM0.56m | 5:32AM0.57m | 6:20PM0.40m | 6:22AM0.46m | 7:03PM0.24m | |||||||
 |  | | | |  | | | |  | | |  |  | | | | | | |
 | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — |
 | 7:21 | — | 7:22 | — | — | 7:22 | — | — | 7:23 | — | — | 7:24 | — | — | 7:25 | — | — | 7:27 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 19 | 20 | 19 | 20 | 20 | 18 | 18 | 19 | 18 | 18 | 18 | 17 |
Feels °C | 15 | 17 | 13 | 13 | 11 | 10 | 11 | 16 | 17 | 20 | 17 | 16 | 17 | 17 | 17 | 16 | 14 | 13 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SSW 12 | S 7 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | ESE 8 | ESE 8 | ESE 9 | E 9 | SW 15 | ESE 12 | ESE 12 | SSW 14 | SSW 12 | SSW 12 | SSW 12 |
| kJ | 209 | 144 | 199 | 131 | 351 | 368 | 341 | 282 | 356 | 330 | 358 | 225 | 496 | 432 | 380 | 672 | 473 | 299 | 616 |
Swell 2 Height (m) Direction Period (s) | S 9 | E 8 | SSE 11 | SSW 13 | SSE 10 | — | — | SE 16 | SSW 14 | SSW 13 | SSW 13 | SW 12 | E 9 | SW 14 | SSW 14 | ESE 12 | ESE 12 | ESE 11 | ESE 11 |
| kJ | 73 | 68 | 12 | 282 | 10 | — | — | 10 | 316 | 269 | 295 | 223 | 194 | 424 | 384 | 374 | 306 | 243 | 170 |
Swell 3 Height (m) Direction Period (s) | E 5 | S 8 | SSE 8 | SSE 10 | — | — | — | S 22 | SSE 14 | SSW 19 | SSW 18 | SSW 16 | SSW 6 | SE 10 | SE 10 | — | — | — | — |
| kJ | 21 | 66 | 24 | 10 | — | — | — | 9 | 20 | 37 | 123 | 226 | 25 | 4 | 4 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SE 8 | E 8 | ESE 6 | ESE 6 | E 7 | ESE 8 | — | — | SW 3 | SW 4 | — | S 5 | S 6 | — | — | SSW 4 | — |
| kJ | — | — | 255 | 131 | 247 | 299 | 502 | 494 | — | — | 5 | 11 | — | 62 | 76 | — | — | 9 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 81 | 107 | 246 | 81 | 140 | 2948 | 139 | 81 | 135 | 19 | 133 | 183 | 81 | 186 | 186 | 65 | 133 | 183 | 76 |
Best forecast wave conditions in Overberg | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Arniston Surf forecast
The above surf forecast table for Arniston provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Arniston can be found by selecting the local surf guide option on the grey menu. Our Arniston 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 (Arniston) 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 Arniston 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 Arniston, camping, hotels and holiday cottages in Overberg, consider staying in Hermanus which is 97 km (60 miles) away.
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