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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 7 am Tuesday 19 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
17.1° C
(Which is normal for this time of year)How big are the waves at Arniston today?
The current surf forecast for Arniston at 3PM is: 2.5m 8s primary swell from a Southeast direction and 0.6m 13s secondary swell from a Southwest direction, 0.4m 14s secondary swell from a South-southeast direction (forecast issued at 07:00am May 19). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 8ft (2.5m) | 8s |
| Afternoon (19 May) | 8ft (2.5m) | 8s |
| Evening (19 May) | 10ft (3.0m) | 9s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Tue morning. Warm (max 20°C on Thu afternoon, min 16°C on Wed night). Winds decreasing (strong winds from the E on Tue night, light winds from the NNE by Wed night). | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | |
909 | 774 | 735 | 754 | 865 | 1373 | 1757 | 1814 | 1847 | 1553 | 1342 | 1333 | 1312 | 1076 | 1026 | 1294 | 1361 | 942 | 784 | 637 | 566 | 423 | 346 | 299 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | |
High Tide | 5:14PM1.77m | 5:30AM1.73m | 6:07PM1.67m | 6:25AM1.56m | 7:07PM1.57m | |||||||||||||||||||
Low Tide | 11:01AM0.12m | 11:23PM0.30m | 11:50AM0.25m | 00:21AM0.42m | 12:45PM0.38m | 1:30AM0.54m | ||||||||||||||||||
 |  | | | | | |  | |  | |  |  | |  | | | | | | | | | | |
 | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | 7:30 |
 | — | — | — | — | 5:42 | — | — | — | — | — | — | — | 5:40 | — | — | — | — | — | — | — | 5:40 | — | — | 5:39 |
1 | 1 | 2 | 1 | 1 | 2 | 1 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 17 | 19 | 20 | 19 | 17 | 17 | 16 |
11 | 12 | 12 | 13 | 12 | 11 | 11 | 10 | 11 | 12 | 13 | 12 | 13 | 14 | 13 | 15 | 16 | 17 | 18 | 18 | 17 | 15 | 15 | 14 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SW 12 | SW 12 | SSW 15 | SW 14 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 |
 kJ | 114 | 116 | 113 | 109 | 84 | 60 | 59 | 104 | 101 | 117 | 87 | 23 | 22 | 42 | 53 | 1097 | 1043 | 942 | 784 | 637 | 566 | 423 | 346 | 299 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 11 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 16 | SSW 15 | SW 12 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 18 |
| kJ | 26 | 24 | 42 | 78 | 73 | 71 | 142 | 56 | 53 | 37 | 23 | 24 | 21 | 21 | 80 | 78 | 71 | 69 | 44 | 40 | 37 | 37 | 37 | 128 |
Swell 3 Height (m) Direction Period (s) | SSE 16 | SSE 15 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | S 16 | S 16 | SSW 9 | SW 15 | SW 14 | SW 11 | SE 11 | WSW 11 | S 22 | S 21 | SW 21 | SSW 20 | SSW 20 | SSW 19 | SW 12 |
| kJ | 25 | 45 | 22 | 11 | 10 | 9 | 16 | 16 | 8 | 5 | 20 | 16 | 55 | 54 | 30 | 33 | 11 | 9 | 9 | 18 | 38 | 75 | 74 | 36 |
Wind waves Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | — | — | — | SW 3 | W 4 | WSW 4 | WSW 4 |
| kJ | 909 | 774 | 735 | 754 | 865 | 1373 | 1757 | 1814 | 1847 | 1553 | 1342 | 1333 | 1312 | 1076 | 1026 | 1294 | 1361 | — | — | — | 2 | 7 | 3 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 184 | 144 | 140 | 140 | 140 | 81 | 140 | 140 | 140 | 140 | 107 | 107 | 81 | 81 | 81 | 76 | 76 | 19 | 19 | 19 | 19 | 19 | 0 | 0 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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