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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
16 Day Weather and Surf, issued 7 am Saturday 25 Apr 2026 SASTForecast update in hr min s Forecast update imminent
Arniston surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Arniston sea temperature is
18.7° C
(Which is slightly warmer than usual)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 Sunday (Apr 26) at 2AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.2m and 10s. Another secondary swell of 0.8m and 7s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Arniston in the next 16 days are 3.0m 13s and forecast to arrive on Tuesday (Apr 28) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 4s period and expected on Sunday (Apr 26) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 26th Apr) | 2.5ft (0.8m) 9s |
| Best Surf | 5AM (Mon 27th Apr) | 7ft (2.1m) 10s |
| Most Powerful | 2PM (Tue 28th Apr) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Arniston over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Sun night. Warm (max 22°C on Sat afternoon, min 13°C on Sun night). Winds increasing (light winds from the WNW on Sat night, strong winds from the SW by Sun night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Thu morning, min 15°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 1 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
E 9 | E 9 | E 9 | SW 10 | SW 8 | SSW 10 | SSW 10 | SSW 11 | S 11 | S 13 | S 13 | S 12 | S 11 | S 10 | SSE 11 | SSW 13 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | |
215 | 190 | 99 | 58 | 201 | 850 | 919 | 1862 | 1584 | 3406 | 3012 | 1731 | 1065 | 632 | 561 | 402 | 1439 | 1773 | 1179 | 847 | 579 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross-on | cross-on | on | cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-off | |
High Tide | 11:10AM1.29m | 11:46PM1.50m | 12:17PM1.40m | 00:36AM1.63m | 1:02PM1.51m | 1:14AM1.73m | 1:39PM1.60m | 1:47AM1.80m | 2:11PM1.67m | 2:17AM1.84m | 2:41PM1.72m | 2:47AM1.86m | 3:10PM1.74m | 3:16AM1.84m | |||||||
Low Tide | 5:24PM0.59m | 6:19AM0.52m | 6:23PM0.50m | 7:05AM0.39m | 7:06PM0.41m | 7:40AM0.28m | 7:42PM0.35m | 8:11AM0.21m | 8:13PM0.30m | 8:39AM0.16m | 8:42PM0.28m | 9:05AM0.14m | 9:10PM0.28m | ||||||||
 | |  | |  |  |  |  |  | | | | |  | | | | | | | | |
 | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | 6:02 | — | — | 6:01 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — | — | 5:58 | — | — | 5:57 | — |
— | — | — | — | 2 | 6 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 22 | 18 | 20 | 16 | 15 | 14 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 17 |
19 | 17 | 14 | 16 | 9 | 8 | 6 | 7 | 9 | 13 | 14 | 13 | 11 | 12 | 14 | 14 | 13 | 15 | 12 | 12 | 14 | |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 8 | E 9 | E 8 | SSW 10 | SSW 11 | S 11 | S 13 | S 13 | S 12 | S 11 | S 10 | SSE 11 | SSE 11 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 |
 kJ | 215 | 190 | 99 | 49 | 60 | 36 | 919 | 1322 | 1584 | 3406 | 3012 | 1731 | 1065 | 632 | 561 | 346 | 1439 | 1773 | 1179 | 847 | 579 |
Swell 2 Height (m) Direction Period (s) | SW 11 | S 9 | WSW 10 | SW 10 | SSE 14 | SW 14 | SW 12 | ESE 10 | E 10 | E 10 | E 11 | E 10 | SSW 15 | SSE 13 | SSW 13 | SSW 13 | SSE 11 | SSE 10 | SE 9 | SSE 8 | SSE 7 |
| kJ | 61 | 6 | 10 | 58 | 21 | 32 | 74 | 33 | 17 | 8 | 9 | 8 | 21 | 280 | 156 | 402 | 183 | 64 | 21 | 67 | 33 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 17 | SSW 11 | SSE 15 | SSW 15 | SW 13 | ESE 9 | S 19 | — | E 10 | E 11 | SW 16 | E 10 | SSW 14 | SW 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
| kJ | 14 | 24 | 12 | 22 | 21 | 7 | 29 | 7 | — | 19 | 20 | 10 | 8 | 73 | 39 | 17 | 17 | 7 | 7 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | WSW 2 | WSW 5 | WSW 7 | WNW 2 | SW 8 | SSW 10 | WSW 4 | SSW 11 | — | — | — | — | ENE 4 | ENE 4 | — | — | — | — | — | — | — |
| kJ | 1 | 56 | 53 | 1 | 201 | 850 | 13 | 1862 | — | — | — | — | 7 | 4 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 174 | 0 | 0 | 296 | 910 | 306 | 192 | 113 | 76 | 113 | 81 | 81 | 226 | 65 | 0 | 65 | 76 | 93 | 76 | 19 |
Best forecast wave conditions in Overberg | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Arniston surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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