Surf Forecasts:
Arniston surf forecast from 11 Oct 2026:
- Best quality surf: Thursday 15 Oct, 2AM (local time) - 11ft (3.5m), 13s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 15 Oct, 5PM (local time) - 13ft (4.0m), 14s period, WSW swell with 5,046 kJ wave energy.
- Next surfable swell (1★+): Monday 12 Oct, 2AM (local time) - 3.5ft (1.0m), 12s period with SSW 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 Monday (Oct 12) at 2AM. The primary swell is predicted to be 1.0m and 12s period with a secondary swell of 0.4m and 10s. 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 4.0m 14s and forecast to arrive on Thursday (Oct 15) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Saturday (Oct 17) at 5AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 12th Oct) | 3.5ft (1.0m) 12s |
| Best Surf | 2AM (Thu 15th Oct) | 11ft (3.5m) 13s |
| Most Powerful | 5PM (Thu 15th Oct) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Arniston over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 22°C on Mon morning, min 14°C on Mon night). Winds decreasing (strong winds from the WSW on Mon afternoon, light winds from the SSE by Tue night). | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Sat morning. Warm (max 22°C on Fri afternoon, min 11°C on Sat afternoon). Winds increasing (light winds from the NNW on Wed night, near gales from the WSW by Fri afternoon). | ||||||||||||||||||
Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | ||||||||||||||
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) | SSW 12 | SSW 12 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SSW 13 | SW 13 | WSW 13 | SW 15 | WSW 14 | SW 13 | SW 13 | SW 12 | SSW 12 | SW 12 | SSW 12 | SSW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 289 | 231 | 524 | 276 | 234 | 196 | 139 | 299 | 501 | 3971 | 1619 | 5046 | 701 | 411 | 700 | 658 | 635 | 680 | 644 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-off | cross-off | cross-off | cross-on | cross-off | cross-off | cross-on | cross-off | cross | cross | cross | cross-on |
High Tide | 3:45AM1.82m | 3:53PM1.91m | 4:14AM1.76m | 4:21PM1.80m | 4:42AM1.66m | 4:50PM1.67m | 5:11AM1.54m | 5:18PM1.53m | 5:43AM1.41m | 5:49PM1.38m | 6:25AM1.27m | 6:32PM1.23m | |||||||
Low Tide | 9:41PM0.06m | 9:45AM0.18m | 10:07PM0.13m | 10:13AM0.26m | 10:33PM0.23m | 10:40AM0.36m | 11:00PM0.35m | 11:07AM0.49m | 11:28PM0.48m | 11:38AM0.62m | 00:03AM0.62m | 12:19PM0.77m | 00:58AM0.74m | ||||||
 |  |  |  | | |  | | |  |  | | | | |  |  |  | | |
 | — | 6:01 | — | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — |
 | 6:49 | — | 6:50 | — | — | 6:51 | — | — | 6:51 | — | — | 6:52 | — | — | 6:52 | — | — | 6:53 | — |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 | 7 | 5 | 1 |
Temp °C | 16 | 22 | 21 | 15 | 16 | 15 | 15 | 16 | 17 | 14 | 19 | 18 | 17 | 21 | 22 | 17 | 13 | 12 | 14 |
Feels °C | 15 | 17 | 13 | 11 | 14 | 11 | 13 | 14 | 12 | 8 | 16 | 15 | 15 | 19 | 18 | 10 | 9 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | E 9 | SW 10 | SW 10 | SW 10 | SW 10 | SSW 13 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | SW 13 | E 8 | E 8 | SW 12 | SSW 12 | SSW 12 |
| kJ | 289 | 231 | 43 | 276 | 234 | 196 | 139 | 299 | 501 | 721 | 1619 | 1187 | 701 | 411 | 23 | 22 | 635 | 680 | 644 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | E 9 | — | E 9 | E 9 | E 9 | E 10 | SW 10 | ESE 9 | SSW 16 | ESE 9 | E 9 | E 9 | E 8 | — | E 8 | S 7 | E 8 | E 8 |
| kJ | 31 | 64 | — | 63 | 59 | 25 | 50 | 76 | 28 | 407 | 26 | 23 | 38 | 35 | — | 22 | 104 | 12 | 5 |
Swell 3 Height (m) Direction Period (s) | ESE 7 | — | — | — | E 10 | ESE 11 | SSW 12 | E 10 | — | E 9 | — | — | E 9 | E 8 | — | W 11 | E 8 | — | — |
| kJ | 15 | — | — | — | 35 | 24 | 15 | 44 | — | 25 | — | — | 39 | 35 | — | 38 | 12 | — | — |
Wind waves Height (m) Direction Period (s) | — | WSW 6 | SW 11 | — | — | — | — | — | SW 4 | WSW 13 | — | WSW 14 | — | — | SW 12 | SSW 12 | — | — | — |
| kJ | — | 58 | 524 | — | — | — | — | — | 44 | 3971 | — | 5046 | — | — | 700 | 658 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 160 | 127 | 0 | 113 | 19 | 76 | 0 | 174 | 120 | 76 | 174 | 0 | 19 | 174 | 113 | 261 | 135 | 81 |
Best forecast wave conditions in Overberg | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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