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Surf Forecasts:
Nine Mile Reef surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 am Thursday 11 Dec 2025 SASTForecast update in hr min s Forecast update imminent
Nine Mile Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nine Mile Reef sea temperature is
17.7° C
(Which is 1.3°C colder than average for this time of year)How big are the waves at Nine Mile Reef today?
The current surf forecast for Nine Mile Reef at 9AM is: 1.3m 6s primary swell from a East-southeast direction and 0.7m 10s secondary swell from a Southwest direction, 0.5m 8s secondary swell from a South direction (forecast issued at 07:00am December 11). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 4.5ft (1.3m) | 6s |
| Afternoon (11 Dec) | 3ft (0.9m) | 9s |
| Evening (11 Dec) | 3ft (0.9m) | 9s |
Table - waves today at Nine Mile Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 10 | 9 | 9 | 9 | 10 | 20 | 19 | 18 | 17 | 16 | 16 | 10 | 16 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 167 | 107 | 94 | 146 | 146 | 119 | 73 | 134 | 217 | 370 | 493 | 589 | 644 | 2108 | 773 | 6969 | 3468 | 3338 | 2615 | 2078 | 1899 | 1693 | 1547 | 1299 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | cross | cross- on | on | on | off | off | off | off | cross- off | cross- off | cross- off | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | cross- on |
High Tide / height (m) | 8:15AM 1.27 | 8:45PM 1.05 | 9:21AM 1.22 | 10:04PM 1.02 | 10:28AM 1.21 | 11:18PM 1.04 | ||||||||||||||||||
Low Tide / height (m) | 2:49PM 0.49 | 2:47AM 0.51 | 4:06PM 0.51 | 4:00AM 0.56 | 5:15PM 0.48 | |||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sun 14 | |||||||||||||||||||||
| Sunrise | - | 5:26 | - | - | - | - | - | - | - | 5:26 | - | - | - | - | - | - | - | 5:26 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 7:49 | - | - | - | - | - | - | - | 7:50 | - | - | - | - | - | - | - | 7:51 | - | - | - |
 |  | | |  |  |  | | | | |  | |  |  | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 3 | 2 | 1 | 2 | 1 | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 23 | 27 | 26 | 22 | 20 | 19 | 18 | 17 | 20 | 22 | 18 | 19 | 17 | 17 | 16 | 16 | 16 | 18 | 18 | 18 | 17 | 17 | 16 |
| Feels °C (?) | 18 | 22 | 25 | 25 | 22 | 21 | 20 | 17 | 15 | 15 | 16 | 15 | 15 | 14 | 14 | 13 | 12 | 13 | 15 | 15 | 14 | 14 | 15 | 14 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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