- Forecast
- Maps
- Live
- Weather State
- Spot Information
Arniston surfForecast / Overberg / South Africa
12 Day Weather and Surf, issued 1 am Tuesday 15 Jul 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 Tuesday (Jul 15) at 8AM. The primary swell is predicted to be 0.9m and 11s period with a secondary swell of 0.6m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Arniston in the next 12 days are 5.0m 17s and forecast to arrive on Thursday (Jul 17) at 5PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Thursday (Jul 17) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Tue 15th Jul) | 3ft (0.9m) 11s |
| Best Surf | 11PM (Tue 15th Jul) | 7ft (2.1m) 18s |
| Most Powerful | 5PM (Thu 17th Jul) | 16ft (5.0m) 17s |
Table - best surf conditions forecast for Arniston over the next 12 days.
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||||||||||||
| 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 | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 17 | 16 | 15 | 13 | 14 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 8 | 8 | 7 | 7 | 8 | 9 | 9 | 10 | 15 | 16 | 16 | 15 | 14 | 14 | 14 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 551 | 838 | 2716 | 1696 | 1040 | 1089 | 1416 | 18006 | 5685 | 5051 | 3932 | 2470 | 1609 | 1348 | 817 | 904 | 889 | 768 | 908 | 964 | 994 | 1172 | 973 | 1615 | 991 | 782 | 849 | 889 | 866 | 775 | 537 | 508 | 418 | 770 | 985 | 854 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | cross- on | cross- on | cross | on | cross- off | cross- off | cross- off | off | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | on | cross- on | cross- on | on | glass | glass | on | cross- on | cross- on | on | cross |
High Tide / height (m) | 6:22PM 1.81 | 6:37AM 1.57 | 7:06PM 1.74 | 7:29AM 1.46 | 7:59PM 1.65 | 8:36AM 1.35 | 9:07PM 1.56 | 10:04AM 1.30 | 10:32PM 1.51 | 11:37AM 1.34 | 11:57PM 1.54 | 12:52PM 1.45 | 1:06AM 1.63 | 1:49PM 1.59 | 2:01AM 1.72 | 2:36PM 1.72 | 2:48AM 1.79 | 3:18PM 1.82 | 3:29AM 1.82 | 3:56PM 1.88 | 4:07AM 1.82 | 4:32PM 1.90 | 4:42AM 1.77 | |||||||||||||
Low Tide / height (m) | 12:00PM 0.22 | 12:38AM 0.33 | 12:41PM 0.31 | 1:29AM 0.40 | 1:29PM 0.43 | 2:30AM 0.47 | 2:32PM 0.55 | 3:48AM 0.52 | 3:57PM 0.63 | 5:18AM 0.50 | 5:35PM 0.62 | 6:38AM 0.42 | 6:57PM 0.53 | 7:39AM 0.31 | 7:58PM 0.41 | 8:28AM 0.21 | 8:47PM 0.30 | 9:09AM 0.13 | 9:30PM 0.23 | 9:46AM 0.09 | 10:09PM 0.20 | 10:20AM 0.09 | 10:45PM 0.21 | |||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||||||||||||
| Sunrise | 7:43 | - | - | 7:43 | - | - | 7:43 | - | - | 7:41 | - | - | 7:41 | - | - | 7:41 | - | - | 7:41 | - | - | 7:39 | - | - | 7:39 | - | - | 7:39 | - | - | 7:37 | - | - | 7:37 | - | - |
| Sunset | - | 5:45 | - | - | 5:45 | - | - | 5:46 | - | - | 5:47 | - | - | 5:47 | - | - | 5:49 | - | - | 5:50 | - | - | 5:50 | - | - | 5:51 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - |
 | |  |  | | |  |  |  | | | | | | | | | |  | | | | | | | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | 1 | 1 | 2 | - | - | - | - | - | - | - | - | 4 | 16 | 6 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 15 | 14 | 14 | 18 | 16 | 14 | 15 | 14 | 14 | 15 | 13 | 12 | 18 | 16 | 14 | 15 | 14 | 11 | 12 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 13 | 15 | 16 |
| Feels °C (?) | 10 | 13 | 13 | 11 | 16 | 13 | 10 | 7 | 8 | 10 | 11 | 9 | 9 | 15 | 14 | 10 | 9 | 9 | 3 | 5 | 6 | 7 | 8 | 8 | 10 | 9 | 8 | 11 | 11 | 11 | 12 | 11 | 11 | 9 | 13 | 15 |
Short Range Forecast: Light rain (total 4mm), mostly falling on Thu morning. Very mild (max 18°C on Wed afternoon, min 12°C on Tue night). Winds increasing (light winds from the SW on Tue afternoon, fresh winds from the WNW by Thu afternoon). | Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Sun night. Very mild (max 18°C on Sat afternoon, min 11°C on Sat morning). Winds increasing (light winds from the NE on Sat night, strong winds from the S by Sun night). | Days 6-9 Weather Summary Heavy rain (total 24mm), heaviest during Mon morning. Very mild (max 13°C on Mon night, min 11°C on Mon morning). Winds decreasing (strong winds from the S on Mon morning, light winds from the ENE by Tue night). | Long Range Forecast: Mostly dry. Very mild (max 16°C on Sat night, min 12°C on Thu morning). Winds increasing (calm on Thu night, fresh winds from the ENE by Fri night). | |||||||||||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Overberg
The wind is still cross-off at Arniston (light winds from the SW at Struisbaai 20 km from Arniston). 1.5m 11 s period swell from SW with 1.5m 7 s period wind swell from WSW. Swells combining. Closeout sets possible
20 km away, 2 h 20 min ago
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.
Nearest