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 1 pm Friday 12 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
25.7° C
(Which is slightly warmer than usual)How big are the waves at Mapelane today?
The current surf forecast for Mapelane at 4PM is: 2.5m 7s primary swell from a Northeast direction and 0.8m 14s secondary swell from a South direction (forecast issued at 01:00pm December 12). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 3.5ft (1.1m) | 14s |
| Afternoon (12 Dec) | 8ft (2.5m) | 7s |
| Evening (12 Dec) | 7.5ft (2.3m) | 7s |
Table - waves today at Mapelane. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 8 | 8 | 7 | 8 | 13 | 9 | 9 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 411 | 480 | 641 | 569 | 149 | 187 | 378 | 708 | 638 | 274 | 207 | 159 | 590 | 615 | 597 | 355 | 234 | 384 | 335 | 292 | 279 | 230 | 235 | 190 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- on | cross- on | cross- on | glass | cross | cross- on |
High Tide / height (m) | 9:22AM 1.44 | 9:43PM 1.28 | 10:45AM 1.40 | 11:18PM 1.27 | 12:01PM 1.43 | 12:34AM 1.33 | ||||||||||||||||||
Low Tide / height (m) | 3:40PM 0.76 | 3:58AM 0.69 | 5:11PM 0.76 | 5:24AM 0.70 | 6:26PM 0.69 | 6:34AM 0.65 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 4:46 | - | - | - | - | - | - | - | 4:46 | - | - | - | - | - | - | - | 4:47 | - |
| Sunset | - | - | 6:40 | - | - | - | - | - | - | - | 6:42 | - | - | - | - | - | - | - | 6:42 | - | - | - | - | - |
 | | |  | |  |  | |  | |  |  | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 25 | 29 | 24 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 22 | 22 | 21 | 23 |
| Feels °C (?) | 22 | 21 | 21 | 20 | 23 | 22 | 23 | 23 | 31 | 22 | 22 | 19 | 18 | 19 | 18 | 19 | 21 | 22 | 23 | 25 | 25 | 25 | 23 | 23 |
- 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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