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I and Js surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 am Tuesday 05 May 2026 SASTForecast update in hr min s Forecast update imminent
I and Js surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's I and Js sea temperature is
18.3° C
(Which is slightly warmer than usual)How big are the waves at I and Js today?
The current surf forecast for I and Js at 7AM is: 2.4m 12s primary swell from a West-southwest direction and 0.7m 11s secondary swell from a South-southwest direction (forecast issued at 01:00am May 05). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 May) | 7.5ft (2.3m) | 12s |
| Afternoon (05 May) | 10ft (3.0m) | 11s |
| Evening (05 May) | 10ft (3.0m) | 11s |
Table - waves today at I and Js. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 17°C on Wed morning, min 14°C on Tue morning). Winds increasing (light winds from the WSW on Tue afternoon, strong winds from the SE by Wed afternoon). | ||||||||||||||||||||||||
Tuesday 5 | Wednesday 6 | Thursday 7 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
WSW 12 | WSW 12 | WSW 12 | WSW 12 | SSW 11 | SSW 11 | S 11 | S 11 | S 11 | S 11 | S 11 | SW 14 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 18 | |
1543 | 1578 | 1578 | 1455 | 1868 | 2226 | 2650 | 2564 | 2041 | 1881 | 1612 | 412 | 469 | 318 | 304 | 357 | 295 | 202 | 275 | 437 | 402 | 434 | 484 | 503 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-on | on | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 4:50AM1.32m | 5:17PM1.26m | 5:23AM1.24m | 5:56PM1.19m | 6:01AM1.15m | 6:44PM1.12m | ||||||||||||||||||
Low Tide | 11:04AM0.29m | 11:17PM0.41m | 11:38AM0.36m | 11:55PM0.50m | 12:18PM0.44m | |||||||||||||||||||
 | |  | |  | |  | | | |  |  | | | | | | | | | | | | | |
 | — | 7:24 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — |
1 | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 14 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 16 | 16 | 16 |
13 | 12 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 12 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 11 | |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SSW 11 | SSW 11 | S 11 | S 11 | S 11 | S 11 | S 11 | WSW 11 | SW 14 | WSW 14 | WSW 13 | WSW 13 | SE 12 | WSW 13 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 |
 kJ | 1543 | 1578 | 1578 | 1455 | 1868 | 2226 | 2650 | 2564 | 2041 | 1881 | 1612 | 243 | 469 | 318 | 304 | 357 | 292 | 202 | 275 | 437 | 402 | 434 | 484 | 476 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SSW 11 | SSW 11 | SSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 14 | WSW 11 | WSW 11 | WSW 11 | SW 18 | WSW 13 | WSW 16 | WSW 12 | WSW 21 | WSW 10 | WSW 20 | WSW 19 | WSW 18 |
| kJ | 123 | 123 | 123 | 346 | 1027 | 836 | 603 | 569 | 429 | 361 | 301 | 412 | 133 | 88 | 68 | 50 | 295 | 173 | 119 | 44 | 36 | 149 | 246 | 503 |
Swell 3 Height (m) Direction Period (s) | S 13 | SSE 12 | WSW 19 | SW 18 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | — | NW 13 | SW 20 | WSW 18 | NW 13 | WSW 16 | SW 22 | SW 22 | W 13 | SW 20 | S 12 | SSE 12 | S 11 |
| kJ | 29 | 14 | 37 | 50 | 80 | 80 | 211 | 310 | 261 | 322 | 418 | — | 7 | 15 | 32 | 7 | 104 | 18 | 18 | 3 | 100 | 25 | 46 | 66 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 12 | SSE 12 | SSE 13 | SE 13 | SE 13 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1659 | 1808 | 1823 | 1624 | 1463 | 920 | 1114 | 1043 | 1010 | 967 | 1100 | 1060 | 1044 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 3 | 3 | 5 | 3 | 8 | 2 | 3 | 165 | 164 | 916 | 47 | 8 | 8 | 2 | 2 | 2 | 50 | 78 | 27 | 5 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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