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:
Port St Johns surfForecast / Eastern Cape – Wild Coast / South Africa
48hr Weather and Surf, issued 1 pm Saturday 13 Dec 2025 SASTForecast update in hr min s Forecast update imminent
Port St Johns surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Port St Johns sea temperature is
23.3° C
(Which is normal for this time of year)How big are the waves at Port St Johns today?
The current surf forecast for Port St Johns at 6PM is: 2.4m 8s primary swell from a South-southwest direction and 0.6m 8s secondary swell from a East-northeast direction, 0.6m 14s secondary swell from a South-southwest direction (forecast issued at 01:00pm December 13). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 3ft (0.9m) | 9s |
| Afternoon (13 Dec) | 7.5ft (2.3m) | 8s |
| Evening (13 Dec) | 8ft (2.4m) | 9s |
Table - waves today at Port St Johns. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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) (?) | 7 | 8 | 8 | 9 | 9 | 13 | 12 | 12 | 12 | 13 | 13 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 319 | 588 | 781 | 839 | 459 | 931 | 619 | 558 | 469 | 303 | 246 | 263 | 220 | 363 | 369 | 383 | 310 | 429 | 759 | 568 | 622 | 350 | 277 | 280 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross- on | glass | glass | cross- off | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross | cross | cross | cross- off | off | cross- on | cross- off | cross- off | glass |
High Tide / height (m) | 10:54AM 1.23 | 11:28PM 1.05 | 12:03PM 1.25 | 12:39AM 1.11 | 12:58PM 1.30 | 1:30AM 1.19 | ||||||||||||||||||
Low Tide / height (m) | 5:27PM 0.63 | 5:21AM 0.59 | 6:35PM 0.56 | 6:30AM 0.56 | 7:23PM 0.48 | 7:22AM 0.50 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 4:50 | - | - | - | - | - | - | - | 4:50 | - | - | - | - | - | - | - | 4:50 | - |
| Sunset | - | - | 7:00 | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - |
 |  |  |  | | | |  | | | |  |  | | | | | | | | | | | | |
Rain (mm) | - | - | 2 | 4 | 2 | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 21 | 19 | 19 | 18 | 17 | 17 | 20 | 22 | 24 | 24 | 21 | 19 | 19 | 19 | 24 | 29 | 31 | 26 | 26 | 24 | 23 | 22 | 26 |
| Feels °C (?) | 18 | 16 | 16 | 18 | 19 | 18 | 17 | 19 | 19 | 20 | 20 | 18 | 18 | 19 | 19 | 25 | 29 | 32 | 26 | 25 | 27 | 25 | 24 | 29 |
- 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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