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Extensions Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Extensions surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 am Friday 15 May 2026 SASTForecast update in hr min s Forecast update imminent
Extensions surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Extensions sea temperature is
17.1° C
(Which is normal for this time of year)How big are the waves at Extensions today?
The current surf forecast for Extensions at 12PM is: 2.4m 14s primary swell from a South direction and 1.8m 11s secondary swell from a Southwest direction (forecast issued at 07:00am May 15). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 May) | 7.5ft (2.3m) | 14s |
| Afternoon (15 May) | 8ft (2.5m) | 14s |
| Evening (15 May) | 10ft (3.0m) | 14s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Sat night, min 14°C on Sat morning). Winds increasing (light winds from the SW on Fri morning, fresh winds from the SE by Sun night). | ||||||||||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | Mon 18 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
S 14 | S 14 | S 14 | S 14 | SW 15 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | |
1468 | 1941 | 2314 | 2475 | 3034 | 3148 | 2939 | 2394 | 2084 | 1803 | 1390 | 1116 | 1083 | 943 | 894 | 787 | 659 | 648 | 659 | 942 | 979 | 950 | 936 | 950 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 2:14PM1.48m | 2:24AM1.65m | 2:57PM1.53m | 3:09AM1.67m | 3:42PM1.54m | |||||||||||||||||||
Low Tide | 8:05AM0.02m | 8:14PM0.14m | 8:47AM-0.04m | 8:59PM0.10m | 9:31AM-0.04m | 9:45PM0.10m | ||||||||||||||||||
 |  | | | |  | | | | | | | | | | | | | | | | | | | |
 | 7:31 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:33 | — | — | — | — | — | — | 7:33 |
 | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:51 | — | — | 5:50 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 15 | 14 | 14 | 16 | 18 | 19 | 18 | 16 | 15 | 16 | 16 | 16 | 17 | 17 | 16 | 16 |
15 | 16 | 15 | 16 | 15 | 14 | 14 | 12 | 11 | 9 | 10 | 12 | 14 | 16 | 15 | 14 | 13 | 14 | 14 | 13 | 14 | 13 | 12 | 11 | |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 14 | SW 15 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 |
 kJ | 1468 | 1941 | 2314 | 2475 | 3034 | 3148 | 2939 | 2394 | 2084 | 1803 | 1390 | 1116 | 1083 | 943 | 894 | 787 | 659 | 648 | 659 | 942 | 979 | 950 | 936 | 950 |
Swell 2 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 10 | SW 12 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | W 13 | S 11 | W 13 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 |
| kJ | 712 | 659 | 614 | 869 | 2249 | 1979 | 1704 | 1507 | 1215 | 1318 | 1152 | 940 | 827 | 544 | 639 | 3 | 289 | 3 | 235 | 231 | 184 | 138 | 98 | 74 |
Swell 3 Height (m) Direction Period (s) | WSW 12 | WSW 15 | WSW 15 | WSW 15 | SW 15 | — | — | — | W 15 | W 15 | W 15 | — | — | — | W 13 | — | W 13 | W 13 | WSW 15 | — | S 13 | SSE 13 | SW 6 | SSE 14 |
| kJ | 413 | 566 | 661 | 953 | 589 | — | — | — | 4 | 4 | 4 | — | — | — | 3 | — | 3 | 3 | 126 | — | 89 | 59 | 15 | 62 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SE 4 | SE 4 | SE 4 | SE 5 | SSE 5 | SSE 5 | SE 5 | S 12 | SSE 4 | S 11 | SSE 4 | SSE 4 | SSE 4 | SSE 4 | SE 4 | SSE 5 |
| kJ | — | — | — | — | — | — | — | — | 10 | 23 | 46 | 51 | 38 | 33 | 46 | 604 | 22 | 403 | 18 | 18 | 18 | 20 | 29 | 57 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 3 | 5 | 12 | 0 | 12 | 12 | 12 | 12 | 25 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 30 | 33 | 33 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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