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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 7 pm 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 11PM is: 3.5m 9s primary swell from a East-southeast direction and 0.6m 13s secondary swell from a South-southeast direction, 0.4m 13s secondary swell from a Southwest direction (forecast issued at 07:00pm May 19). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | - | - |
| Afternoon (19 May) | 8ft (2.5m) | 8s |
| Evening (19 May) | 11ft (3.5m) | 9s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Warm (max 20°C on Thu afternoon, min 16°C on Thu night). Winds decreasing (strong winds from the E on Tue night, light winds from the NNW by Wed night). | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSW 16 | |
1043 | 1582 | 1664 | 1569 | 1384 | 1333 | 1503 | 1539 | 1313 | 1176 | 1072 | 1271 | 1067 | 784 | 721 | 579 | 493 | 417 | 354 | 256 | 250 | 202 | 167 | 175 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | |
High Tide | 5:14PM1.77m | 5:30AM1.73m | 6:07PM1.67m | 6:25AM1.56m | 7:07PM1.57m | 7:30AM1.40m | ||||||||||||||||||
Low Tide | 11:23PM0.30m | 11:50AM0.25m | 00:21AM0.42m | 12:45PM0.38m | 1:30AM0.54m | 1:49PM0.51m | ||||||||||||||||||
 |  | | | | |  |  | |  | | |  | | | | | | | | | | | | |
 | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — |
 | 5:42 | — | — | — | — | — | — | — | 5:40 | — | — | — | — | — | — | — | 5:40 | — | — | — | — | — | — | 5:39 |
— | 2 | 1 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 17 | 18 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 18 | 20 | 19 | 17 | 16 | 16 | 16 | 16 | 18 | 18 |
10 | 10 | 11 | 11 | 11 | 12 | 12 | 12 | 13 | 14 | 13 | 15 | 17 | 16 | 17 | 17 | 17 | 14 | 13 | 14 | 13 | 13 | 14 | 13 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SW 12 | 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 | ESE 8 | ESE 8 | ESE 8 | E 8 |
 kJ | 84 | 60 | 108 | 106 | 104 | 90 | 23 | 23 | 22 | 42 | 53 | 1020 | 1067 | 784 | 721 | 579 | 493 | 417 | 354 | 256 | 250 | 202 | 167 | 131 |
Swell 2 Height (m) Direction Period (s) | SSE 14 | SSE 14 | SW 13 | SW 13 | SW 12 | SW 12 | S 16 | SSW 16 | SSW 15 | SW 12 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 16 |
| kJ | 73 | 71 | 59 | 57 | 53 | 52 | 20 | 24 | 21 | 21 | 80 | 78 | 71 | 69 | 67 | 40 | 37 | 37 | 37 | 128 | 124 | 123 | 111 | 175 |
Swell 3 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SW 15 | SW 15 | SW 14 | SW 11 | SW 11 | SW 11 | S 22 | S 21 | SW 21 | SSW 20 | SSW 20 | SSW 19 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 |
| kJ | 10 | 9 | 29 | 16 | 16 | 16 | 16 | 57 | 55 | 54 | 30 | 30 | 18 | 9 | 9 | 18 | 38 | 75 | 74 | 35 | 34 | 33 | 32 | 20 |
Wind waves Height (m) Direction Period (s) | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | — | — | — | W 4 | WSW 3 | WSW 3 | WSW 5 | W 5 | W 5 | W 5 | W 6 | W 3 |
| kJ | 1043 | 1582 | 1664 | 1569 | 1384 | 1333 | 1503 | 1539 | 1313 | 1176 | 1072 | 1271 | — | — | — | 13 | 2 | 2 | 6 | 53 | 45 | 45 | 6 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 140 | 184 | 140 | 140 | 81 | 81 | 81 | 81 | 81 | 81 | 81 | 76 | 65 | 19 | 19 | 65 | 19 | 19 | 0 | 0 | 0 | 0 | 0 | 65 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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