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Arniston surfForecast / Overberg / South Africa
12 Day Weather and Surf, issued 1 pm Saturday 26 Apr 2025 SAST
Best Forecast Surf Conditions for Arniston this week:
The surf forecast for Arniston over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Apr 27) at 8PM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.7m and 9s. Another secondary swell of 0.8m and 9s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Arniston in the next 12 days are 4.0m 12s and forecast to arrive on Thursday (May 01) 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 0.9m 4s period and expected on Wednesday (Apr 30) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 27th Apr) | 3ft (0.9m) 12s |
| Best Surf | 8AM (Thu 1st May) | 8ft (2.5m) 11s |
| Most Powerful | 8PM (Thu 1st May) | 13ft (4.0m) 12s |
Table - best surf conditions forecast for Arniston over the next 12 days.
Sat 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thu 08 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 12 | 13 | 12 | 11 | 11 | 9 | 12 | 12 | 14 | 14 | 13 | 12 | 11 | 12 | 12 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 11 | 10 | 11 | 10 | 10 | 8 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 514 | 308 | 299 | 273 | 228 | 128 | 93 | 122 | 358 | 428 | 1332 | 1670 | 958 | 625 | 1493 | 1985 | 2027 | 1756 | 2329 | 2784 | 1947 | 1512 | 942 | 787 | 615 | 466 | 320 | 257 | 190 | 214 | 355 | 319 | 244 | 222 | 381 | 1405 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | on | off | cross- off | cross- off | off | cross- off | cross | cross | cross- off | cross- off | off | cross- off | cross- off | off | cross- off | cross- off | cross | cross | cross- on | cross- on | glass | on | cross- on | cross- on | on | cross- off | cross- off | cross- off | cross- off | cross | cross- on | on | cross- on |
High Tide / height (m) | 2:22PM 1.89 | 2:33AM 2.14 | 3:02PM 1.95 | 3:14AM 2.15 | 3:43PM 1.94 | 3:55AM 2.08 | 4:24PM 1.88 | 4:37AM 1.95 | 5:07PM 1.76 | 5:21AM 1.76 | 5:53PM 1.62 | 6:09AM 1.55 | 6:49PM 1.47 | 7:10AM 1.36 | 8:07PM 1.35 | 8:42AM 1.22 | 9:52PM 1.33 | 10:34AM 1.20 | 11:16PM 1.40 | 11:49AM 1.28 | 12:09AM 1.50 | 12:37PM 1.38 | 12:47AM 1.59 | 1:13PM 1.47 | ||||||||||||
Low Tide / height (m) | 8:22PM 0.06 | 8:55AM -0.12 | 9:03PM 0.03 | 9:35AM -0.12 | 9:44PM 0.06 | 10:15AM -0.04 | 10:27PM 0.14 | 10:56AM 0.09 | 11:11PM 0.28 | 11:40AM 0.26 | 12:01AM 0.45 | 12:30PM 0.45 | 1:05AM 0.62 | 1:35PM 0.60 | 2:40AM 0.73 | 3:11PM 0.69 | 4:38AM 0.73 | 4:49PM 0.68 | 5:55AM 0.63 | 5:54PM 0.62 | 6:42AM 0.52 | 6:38PM 0.54 | 7:15AM 0.42 | |||||||||||||
Sat 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thu 08 | ||||||||||||||||||||||||
| Sunrise | - | - | 7:11 | - | - | 7:11 | - | - | 7:11 | - | - | 7:13 | - | - | 7:13 | - | - | 7:15 | - | - | 7:16 | - | - | 7:16 | - | - | 7:16 | - | - | 7:18 | - | - | 7:18 | - | - | 7:18 |
| Sunset | 6:01 | - | - | 6:00 | - | - | 6:00 | - | - | 5:59 | - | - | 5:58 | - | - | 5:57 | - | - | 5:55 | - | - | 5:54 | - | - | 5:53 | - | - | 5:52 | - | - | 5:52 | - | - | 5:51 | - | - |
 |  | | | |  | | | |  |  | | |  |  |  | | | | | | | | | | | | | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 3 | - | - | 6 | 1 | 2 | 3 | 5 | 3 | 5 | 2 | 1 | 4 | - | - | - | - | - | - | - | - | 4 | - | 2 | - | - |
| Temp. °C | 20 | 18 | 24 | 28 | 25 | 22 | 20 | 17 | 19 | 17 | 16 | 15 | 16 | 14 | 13 | 13 | 12 | 13 | 13 | 13 | 15 | 15 | 16 | 15 | 17 | 16 | 16 | 16 | 16 | 17 | 18 | 16 | 15 | 15 | 14 | 15 |
| Feels °C (?) | 18 | 16 | 21 | 25 | 23 | 20 | 15 | 16 | 16 | 14 | 14 | 12 | 8 | 7 | 3 | 3 | 5 | 4 | 3 | 7 | 10 | 8 | 12 | 14 | 16 | 13 | 13 | 13 | 13 | 14 | 13 | 11 | 12 | 9 | 7 | 7 |
Short Range Forecast: Mostly dry. Warm (max 28°C on Sun afternoon, min 16°C on Mon night). Mainly fresh winds. | Days 3-6 Weather Summary Heavy rain (total 20mm), heaviest during Wed night. Very mild (max 17°C on Tue afternoon, min 11°C on Thu night). Winds increasing (light winds from the SW on Tue night, strong winds from the WSW by Wed night). | Days 6-9 Weather Summary Moderate rain (total 15mm), heaviest on Fri afternoon. Very mild (max 17°C on Sun afternoon, min 12°C on Fri night). Winds decreasing (strong winds from the SW on Fri afternoon, calm by Sat night). | Long Range Forecast: Light rain (total 6mm), mostly falling on Tue night. Very mild (max 18°C on Tue afternoon, min 14°C on Wed morning). Winds increasing (light winds from the NW on Mon night, strong winds from the E by Thu afternoon). | |||||||||||||||||||||||||||||||||
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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 12 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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