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Surf Forecasts:
Arniston surfForecast / Overberg / South Africa
48hr Weather and Surf, issued 1 pm Thursday 30 Apr 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
18.1° C
(Which is normal for this time of year)How big are the waves at Arniston today?
The current surf forecast for Arniston at 9PM is: 2.4m 15s primary swell from a South-southwest direction and 0.8m 11s secondary swell from a South-southeast direction (forecast issued at 01:00pm April 30). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 5ft (1.6m) | 12s |
| Afternoon (30 Apr) | 7ft (2.1m) | 17s |
| Evening (30 Apr) | 8ft (2.4m) | 15s |
Table - waves today at Arniston. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 21°C on Sat afternoon, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSE 12 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SW 12 | SW 11 | SW 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | |
605 | 2018 | 2746 | 2700 | 2144 | 1775 | 1465 | 1274 | 1306 | 1180 | 1080 | 919 | 802 | 537 | 396 | 453 | 307 | 302 | 240 | 189 | 235 | 188 | 227 | 210 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | on | cross-off | cross-off | off | cross-off | off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-off | cross-off | |
High Tide | 2:41PM1.72m | 2:47AM1.86m | 3:10PM1.74m | 3:16AM1.84m | 3:39PM1.73m | 3:45AM1.79m | ||||||||||||||||||
Low Tide | 8:39AM0.16m | 8:42PM0.28m | 9:05AM0.14m | 9:10PM0.28m | 9:32AM0.16m | 9:38PM0.30m | ||||||||||||||||||
 | | |  |  | | |  |  | | |  | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:16 | — |
 | — | — | 5:58 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | 5:54 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 17 | 16 | 15 | 15 | 14 | 13 | 13 | 17 | 20 | 20 | 18 | 17 | 16 | 17 | 16 | 17 | 21 | 21 | 19 | 19 | 19 | 18 | 18 |
16 | 16 | 12 | 12 | 12 | 11 | 9 | 9 | 13 | 14 | 15 | 13 | 13 | 11 | 12 | 12 | 15 | 19 | 19 | 17 | 18 | 18 | 17 | 17 | |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SW 12 | SW 11 | SW 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 |
 kJ | 605 | 2018 | 2746 | 2700 | 2144 | 1775 | 1465 | 1274 | 1306 | 1180 | 1080 | 919 | 802 | 537 | 396 | 453 | 307 | 302 | 240 | 189 | 235 | 188 | 227 | 210 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSE 12 | SSE 12 | SSE 11 | SE 11 | SSE 11 | SE 11 | SSE 11 | SE 10 | SE 10 | SSE 10 | SSE 10 | E 10 | S 12 | SSW 12 | S 11 | SW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 |
| kJ | 433 | 475 | 280 | 223 | 123 | 79 | 57 | 44 | 26 | 16 | 10 | 9 | 2 | 290 | 206 | 257 | 273 | 207 | 186 | 149 | 101 | 73 | 71 | 63 |
Swell 3 Height (m) Direction Period (s) | S 19 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SE 10 | SSE 15 | S 12 | S 15 | S 14 | SSE 14 | SSE 15 | SSE 14 | SSE 14 | SW 17 | SW 16 | SW 16 |
| kJ | 182 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 2 | 2 | 4 | 73 | 181 | 109 | 107 | 70 | 42 | 68 | 63 | 74 | 94 | 91 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | WNW 3 | WNW 6 | WNW 3 | WNW 7 | W 3 | WNW 3 | NW 3 | NW 3 | NW 3 | NW 3 | — | W 2 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 3 | 115 | 3 | 456 | 6 | 6 | 5 | 3 | 2 | 4 | — | 1 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 65 | 156 | 65 | 65 | 65 | 0 | 103 | 0 | 105 | 0 | 0 | 0 | 105 | 105 | 105 | 0 | 0 | 0 | 0 | 76 | 76 | 0 | 0 |
Best forecast wave conditions in Overberg | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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