- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 1 am Saturday 16 May 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
17.5° C
(Which is normal for this time of year)How big are the waves at Arniston today?
The current surf forecast for Arniston at 7AM is: 1.8m 13s primary swell from a South direction and 1.1m 14s secondary swell from a Southwest direction (forecast issued at 01:00am May 16). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 5.5ft (1.7m) | 13s |
| Afternoon (16 May) | 5ft (1.5m) | 12s |
| Evening (16 May) | 4.5ft (1.4m) | 12s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Very mild (max 18°C on Mon morning, min 16°C on Sat morning). Winds increasing (calm on Sun morning, strong winds from the ESE by Mon night). | ||||||||||||||||||||||||
Saturday 16 | Sunday 17 | Monday 18 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | SSE 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | S 8 | |
1346 | 1077 | 932 | 738 | 638 | 547 | 639 | 550 | 357 | 338 | 345 | 235 | 184 | 184 | 195 | 181 | 176 | 176 | 231 | 251 | 301 | 200 | 163 | 207 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | on | on | on | on | |
High Tide | 2:25AM2.03m | 2:58PM1.87m | 3:09AM2.04m | 3:41PM1.88m | 3:54AM1.99m | 4:26PM1.84m | ||||||||||||||||||
Low Tide | 8:47AM-0.03m | 8:58PM0.13m | 9:30AM-0.03m | 9:44PM0.14m | 10:14AM0.02m | 10:31PM0.20m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | |  | | |  | | |  | | |
 | — | 7:26 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | |
Temp °C | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 17 | 17 | 17 |
16 | 15 | 14 | 13 | 13 | 13 | 14 | 15 | 16 | 16 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 15 | 14 | 12 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | SSE 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | ESE 6 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | S 8 |
 kJ | 1346 | 1077 | 932 | 738 | 638 | 547 | 639 | 550 | 357 | 338 | 345 | 235 | 184 | 184 | 135 | 130 | 45 | 176 | 231 | 251 | 301 | 200 | 163 | 207 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 | ESE 6 | SW 14 | ESE 6 | ESE 6 | SW 13 | ESE 6 | E 6 | SSE 13 | S 13 | S 12 | SSW 9 | SW 14 |
| kJ | 581 | 492 | 457 | 335 | 256 | 217 | 190 | 168 | 166 | 134 | 124 | 132 | 42 | 164 | 49 | 45 | 176 | 43 | 30 | 173 | 117 | 104 | 53 | 114 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 13 | E 4 | E 4 | S 13 | SE 6 | SW 12 | SE 6 | SW 14 | SW 14 | S 10 | S 10 | S 10 | S 5 | E 6 | SSW 13 | S 12 | SSW 12 |
| kJ | — | — | — | — | — | — | — | 144 | 4 | 2 | 4 | 18 | 71 | 25 | 195 | 181 | 68 | 74 | 77 | 29 | 22 | 68 | 72 | 61 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | E 3 | E 3 | E 4 | E 4 | — | ENE 4 | — | — | — | — | — | — | — | — | S 5 | SSE 6 | SSE 6 | SE 6 | SE 6 | ESE 6 |
| kJ | — | — | — | — | 3 | 6 | 10 | 7 | — | 3 | — | — | — | — | — | — | — | — | 14 | 93 | 54 | 95 | 132 | 151 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 76 | 81 | 81 | 81 | 81 | 81 | 81 | 81 | 0 | 0 | 81 | 113 | 113 | 81 | 81 | 81 | 81 | 81 | 81 | 192 | 192 | 192 | 192 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest