Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
Mapelane surfForecast / KZN North / South Africa
48hr Weather and Surf, issued 7 pm Wednesday 10 Dec 2025 SASTForecast update in hr min s Forecast update imminent
Mapelane surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mapelane sea temperature is
25.6° C
(Which is slightly warmer than usual)How big are the waves at Mapelane today?
The current surf forecast for Mapelane at 12AM is: 0.9m 14s primary swell from a South-southwest direction and 0.9m 7s secondary swell from a South-southwest direction, 1.5m 6s secondary swell from a Southeast direction (forecast issued at 07:00pm December 10). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 4.5ft (1.4m) | 7s |
| Afternoon (11 Dec) | 2.5ft (0.8m) | 14s |
| Evening (11 Dec) | 4ft (1.2m) | 14s |
Table - waves today at Mapelane. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| 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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 13 | 13 | 7 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 7 | 7 | 8 | 7 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 242 | 301 | 285 | 204 | 192 | 183 | 293 | 200 | 494 | 593 | 593 | 593 | 489 | 496 | 411 | 572 | 641 | 496 | 629 | 303 | 345 | 384 | 221 | 298 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross | cross | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- off |
High Tide / height (m) | 7:24PM 1.50 | 8:11AM 1.53 | 8:23PM 1.37 | 9:22AM 1.44 | 9:43PM 1.28 | 10:45AM 1.40 | ||||||||||||||||||
Low Tide / height (m) | 1:39AM 0.48 | 2:22PM 0.68 | 2:40AM 0.61 | 3:40PM 0.76 | 3:58AM 0.69 | |||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 4:46 | - | - | - | - | - | - | - | 4:46 | - | - | - | - | - | - | - | 4:46 | - | - | - |
| Sunset | 6:38 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:40 | - | - | - | - | - | - | - |
 |  |  |  |  | |  |  | |  | | | | | | | | |  | | | | | | |
Rain (mm) | 2 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 22 | 22 | 21 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 22 | 21 | 24 | 27 | 28 | 26 | 25 | 24 | 24 | 24 | 26 | 30 | 25 |
| Feels °C (?) | 21 | 20 | 21 | 20 | 21 | 21 | 21 | 20 | 18 | 19 | 19 | 18 | 16 | 19 | 23 | 23 | 22 | 24 | 24 | 24 | 24 | 25 | 31 | 24 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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