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Arniston surfForecast / Overberg / South Africa
12 Day Weather and Surf, issued 7 am Friday 29 Aug 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 Friday (Aug 29) at 2PM. The primary swell is predicted to be 2.2m and 15s period. 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 2.2m 15s and forecast to arrive on Friday (Aug 29) 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 0.9m 4s period and expected on Wednesday (Sep 03) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Fri 29th Aug) | 7ft (2.2m) 15s |
| Best Surf | 2PM (Fri 29th Aug) | 7ft (2.2m) 15s |
| Most Powerful | 2PM (Fri 29th Aug) | 7ft (2.2m) 15s |
Table - best surf conditions forecast for Arniston over the next 12 days.
Short Range Forecast Mostly dry. Very mild (max 16°C on Fri afternoon, min 13°C on Fri morning). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Tue afternoon, min 12°C on Wed morning). Winds increasing (light winds from the ESE on Tue afternoon, strong winds from the WSW by Wed afternoon). | ||||||||||||||||||||
Friday 29 | Saturday 30 | Sunday 31 | Monday 01 | Tuesday 02 | Wednesday 03 | Thursday 04 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 13 | 15 | 13 | 13 | 13 | 13 | 14 | 15 | 14 | 14 | 13 | 13 | 12 | 15 | 15 | 14 | 13 | 13 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 2245 | 1874 | 1087 | 893 | 1075 | 851 | 533 | 979 | 1248 | 840 | 895 | 1072 | 927 | 754 | 549 | 453 | 888 | 1568 | 1335 | 1275 | 1039 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | glass | on | off | cross- off | cross | cross- on | cross- on | on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off |
High Tide / height (m) | 6:16PM 1.51 | 6:33AM 1.30 | 6:47PM 1.36 | 7:15AM 1.16 | 7:40PM 1.22 | 9:32AM 1.06 | 10:27PM 1.16 | 12:12PM 1.17 | 12:12AM 1.28 | 1:00PM 1.35 | 1:01AM 1.45 | 1:33PM 1.54 | 1:38AM 1.62 | ||||||||
Low Tide / height (m) | 11:57AM 0.51 | 12:29AM 0.57 | 12:25PM 0.65 | 1:09AM 0.70 | 1:04PM 0.80 | 2:34AM 0.82 | 3:06PM 0.92 | 5:41AM 0.78 | 6:12PM 0.83 | 6:46AM 0.62 | 7:04PM 0.66 | 7:22AM 0.44 | 7:40PM 0.47 | ||||||||
Friday 29 | Saturday 30 | Sunday 31 | Monday 01 | Tuesday 02 | Wednesday 03 | Thursday 04 | |||||||||||||||
| Sunrise | 7:01 | - | - | 7:01 | - | - | 7:00 | - | - | 6:58 | - | - | 6:56 | - | - | 6:56 | - | - | 6:54 | - | - |
| Sunset | - | 6:16 | - | - | 6:17 | - | - | 6:19 | - | - | 6:20 | - | - | 6:20 | - | - | 6:21 | - | - | 6:22 | - |
 | |  |  | | | | |  | | | | | | | | | |  | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 1 |
| Temp. °C | 15 | 16 | 15 | 15 | 16 | 15 | 16 | 16 | 15 | 15 | 15 | 15 | 17 | 22 | 16 | 16 | 17 | 14 | 13 | 12 | 13 |
| Feels °C (?) | 14 | 13 | 11 | 15 | 13 | 14 | 10 | 10 | 11 | 12 | 12 | 9 | 15 | 20 | 13 | 10 | 10 | 9 | 11 | 9 | 11 |
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Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Overberg
Continuing clean conditions at Arniston (calm at Tygerhoek 68 km from Arniston). A 2.9m groundswell from the SSW is too big for here
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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