Surf Forecasts:
How big are the waves at Extensions today (19 Jul):
- Morning surf: Morning surf (19 Jul, local time) - 5.5ft (1.7m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (19 Jul, local time) - 6.5ft (2.0m), 9s period with WSW swell.
- Evening surf: Evening surf (19 Jul, local time) - 8ft (2.5m), 11s period with SW swell.
The current surf forecast for Extensions at 4PM is: 1.8m 11s primary swell from a Southwest direction and 0.7m 10s secondary swell from a West direction, 2.0m 9s secondary swell from a West-southwest direction (forecast issued at 07:00am July 19). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Jul) | 5.5ft (1.7m) | 12s |
| Afternoon (19 Jul) | 6.5ft (2.0m) | 9s |
| Evening (19 Jul) | 8ft (2.5m) | 11s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sun morning. Very mild (max 15°C on Sun afternoon, min 13°C on Tue night). Winds decreasing (fresh winds from the NNW on Sun morning, calm by Mon night). | |||||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WSW 12 | WSW 12 | WSW 12 | WSW 9 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 8 | SW 8 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 864 | 850 | 1010 | 637 | 1291 | 1567 | 1567 | 1156 | 962 | 761 | 471 | 370 | 222 | 147 | 334 | 382 | 665 | 1724 | 2448 | 2803 | 2722 | 2436 | 2270 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | on | on | on | cross-on | cross-on | cross | cross-on | cross | cross-on | on | on | on | on | on | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:00PM1.42m | 7:21AM1.17m | 7:44PM1.31m | 8:12AM1.07m | 8:35PM1.19m | ||||||||||||||||||
Low Tide | 12:39PM0.27m | 1:24AM0.34m | 1:20PM0.39m | 2:13AM0.43m | 2:07PM0.50m | ||||||||||||||||||
 |  |  |  |  | |  |  | | | | | |  | | | | | | | | | | |
 | 7:48 | — | — | — | — | — | — | — | 7:48 | — | — | — | — | — | — | — | 7:47 | — | — | — | — | — | — |
 | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — |
mm | — | — | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 15 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Feels °C | 11 | 9 | 10 | 10 | 11 | 12 | 12 | 12 | 13 | 12 | 13 | 12 | 11 | 12 | 11 | 13 | 13 | 13 | 12 | 11 | 11 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 12 | W 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | SSW 16 | SSW 15 | SSW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
| kJ | 864 | 850 | 143 | 250 | 1291 | 1567 | 1567 | 1156 | 962 | 761 | 471 | 370 | 222 | 147 | 113 | 382 | 665 | 1724 | 2448 | 2803 | 2722 | 2436 | 2270 |
Swell 2 Height (m) Direction Period (s) | W 11 | W 11 | SSE 10 | W 10 | W 10 | W 10 | W 10 | W 9 | W 10 | W 10 | W 10 | W 10 | SW 11 | W 10 | SSW 16 | SW 12 | SSW 7 | W 9 | W 9 | W 9 | SE 11 | SE 11 | SE 11 |
| kJ | 188 | 146 | 85 | 133 | 96 | 121 | 69 | 111 | 94 | 69 | 125 | 122 | 147 | 92 | 334 | 244 | 68 | 57 | 39 | 25 | 31 | 31 | 31 |
Swell 3 Height (m) Direction Period (s) | SSE 11 | SSE 11 | SSW 15 | S 10 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | W 10 | SW 10 | SW 12 | SSW 7 | SW 11 | SE 11 | SE 11 | SE 11 | W 9 | — | — |
| kJ | 119 | 88 | 21 | 52 | 33 | 32 | 32 | 23 | 24 | 23 | 22 | 22 | 92 | 84 | 144 | 68 | 115 | 46 | 44 | 31 | 14 | — | — |
Wind waves Height (m) Direction Period (s) | NW 3 | N 4 | WSW 12 | WSW 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 6 | 1010 | 637 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 35 | 35 | 20 | 23 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 5 | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 12 | 12 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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