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Big Bay Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Big Bay surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 am Sunday 31 May 2026 SASTForecast update in hr min s Forecast update imminent
Big Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Bay sea temperature is
16.2° C
(Which is normal for this time of year)How big are the waves at Big Bay today (31 May):
- Morning surf: Morning surf (31 May, local time) - 6ft (1.8m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 5ft (1.6m), 11s period with SW swell.
- Evening surf: Evening surf (31 May, local time) - 5ft (1.5m), 12s period with SW swell.
The current surf forecast for Big Bay at 5AM is: 1.8m 12s primary swell from a Southwest direction (forecast issued at 01:00am May 31). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 6ft (1.8m) | 12s |
| Afternoon (31 May) | 5ft (1.6m) | 11s |
| Evening (31 May) | 5ft (1.5m) | 12s |
Table - waves today at Big Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 20°C on Sun afternoon, min 14°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the SSE by Tue afternoon). | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 11 | WSW 11 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | SW 11 | WSW 11 | WSW 11 | WSW 11 | S 7 | SW 14 | |
683 | 869 | 786 | 752 | 673 | 655 | 604 | 594 | 503 | 593 | 593 | 657 | 860 | 1044 | 1221 | 1125 | 1102 | 1043 | 1322 | 904 | 551 | 452 | 448 | 465 | |
Wind (km/h) | ||||||||||||||||||||||||
off | glassy | glassy | glassy | cross-on | glassy | cross | off | glassy | glassy | glassy | glassy | glassy | cross-on | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 2:56AM1.39m | 3:25PM1.35m | 3:30AM1.38m | 3:59PM1.34m | 4:05AM1.35m | 4:34PM1.33m | ||||||||||||||||||
Low Tide | 9:16AM0.19m | 9:28PM0.31m | 9:48AM0.21m | 10:02PM0.33m | 10:21AM0.23m | 10:37PM0.36m | ||||||||||||||||||
 | |  | | | | | | | |  |  | | |  | | |  | | | | | | | |
 | — | 7:41 | — | — | — | — | — | — | — | 7:41 | — | — | — | — | — | — | — | 7:41 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | |
Temp °C | 16 | 16 | 16 | 19 | 20 | 18 | 18 | 17 | 17 | 17 | 16 | 18 | 18 | 17 | 16 | 17 | 16 | 15 | 16 | 16 | 17 | 15 | 15 | 14 |
15 | 15 | 15 | 18 | 19 | 18 | 17 | 16 | 17 | 17 | 16 | 18 | 17 | 16 | 15 | 18 | 16 | 14 | 14 | 13 | 13 | 8 | 8 | 10 | |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 11 | WSW 11 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | SW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | SW 14 |
 kJ | 683 | 869 | 786 | 752 | 673 | 655 | 604 | 594 | 503 | 593 | 593 | 657 | 860 | 1044 | 1221 | 1125 | 1102 | 1043 | 1322 | 904 | 551 | 452 | 343 | 465 |
Swell 2 Height (m) Direction Period (s) | S 5 | — | — | — | — | — | W 12 | W 12 | W 12 | W 12 | — | — | — | S 13 | S 13 | S 12 | S 12 | S 12 | W 11 | SSW 7 | SSW 8 | SW 11 | SW 10 | W 11 |
| kJ | 12 | — | — | — | — | — | 3 | 3 | 3 | 3 | — | — | — | 14 | 3 | 11 | 12 | 12 | 2 | 164 | 176 | 220 | 108 | 291 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 9 | — | — | — | W 12 | W 12 | — | — | NW 11 | W 11 | W 11 | — | W 11 | SW 11 | SW 15 | SW 14 | SW 10 |
| kJ | — | — | — | — | — | — | — | 2 | — | — | — | 3 | 3 | — | — | 5 | 2 | 2 | — | 2 | 123 | 35 | 164 | 163 |
Wind waves Height (m) Direction Period (s) | — | — | SSE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 7 | S 7 | S 7 |
| kJ | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 200 | 448 | 387 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 29 | 29 | 20 | 4 | 0 | 0 | 34 | 340 | 340 | 91 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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