Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
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Surf Forecasts:
Bali Bay (Glen Reef) surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 am Saturday 13 Dec 2025 SASTForecast update in hr min s Forecast update imminent
Bali Bay (Glen Reef) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bali Bay (Glen Reef) sea temperature is
16.2° C
(Which is 2.8°C colder than average for this time of year)How big are the waves at Bali Bay (Glen Reef) today?
The current surf forecast for Bali Bay (Glen Reef) at 6AM is: 4.0m 14s primary swell from a Southwest direction and 0.2m 12s secondary swell from a South-southeast direction (forecast issued at 01:00am December 13). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 13ft (4.0m) | 14s |
| Afternoon (13 Dec) | 11ft (3.5m) | 13s |
| Evening (13 Dec) | 11ft (3.5m) | 13s |
Table - waves today at Bali Bay (Glen Reef). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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 | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 7527 | 7907 | 7042 | 6217 | 5014 | 4323 | 3997 | 3627 | 3191 | 2597 | 2281 | 1913 | 1775 | 1463 | 1328 | 1452 | 1518 | 1518 | 1787 | 2010 | 2149 | 2185 | 2221 | 2148 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross |
High Tide / height (m) | 10:14PM 1.27 | 10:40AM 1.46 | 11:27PM 1.29 | 11:41AM 1.48 | 12:24AM 1.35 | 12:30PM 1.51 | ||||||||||||||||||
Low Tide / height (m) | 4:15AM 0.79 | 5:26PM 0.72 | 5:22AM 0.78 | 6:18PM 0.67 | 6:16AM 0.75 | 7:00PM 0.62 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:52 | - | - | - | - | - | - | - | 7:52 | - | - | - | - | - | - | - | 7:52 | - |
 |  |  |  |  | |  |  | | | | | | | | | | | | | | | | | |
Rain (mm) | 1 | 1 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 15 | 16 | 18 | 18 | 19 | 18 | 18 | 18 | 18 | 19 | 20 | 21 | 21 | 20 |
| Feels °C (?) | 13 | 11 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 14 | 13 | 14 | 15 | 14 | 16 | 15 | 16 | 17 | 17 | 18 | 18 | 19 | 19 | 19 |
- 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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