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:
Pennington Bay surfForecast / SA – Kangaroo Island / Australia
48hr Weather and Surf, issued 3 am Friday 12 Dec 2025 ACDTForecast update in hr min s Forecast update imminent
Pennington Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Pennington Bay sea temperature is
17.8° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Pennington Bay today?
The current surf forecast for Pennington Bay at 6AM is: 0.9m 13s primary swell from a South-southwest direction and 1.1m 6s secondary swell from a Southeast direction (forecast issued at 03:30am December 12). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 3ft (0.9m) | 13s |
| Afternoon (12 Dec) | 3ft (0.9m) | 13s |
| Evening (12 Dec) | 4.5ft (1.3m) | 12s |
Table - waves today at Pennington Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 361 | 366 | 295 | 290 | 286 | 282 | 222 | 521 | 148 | 260 | 416 | 435 | 1041 | 932 | 355 | 350 | 273 | 252 | 198 | 762 | 1164 | 5071 | 5461 | 4247 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | off | off | cross | on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | cross- on |
High Tide / height (m) | 8:28AM 1.13 | 9:31PM 0.90 | 9:05AM 0.99 | 10:43PM 0.95 | 9:51AM 0.84 | |||||||||||||||||||
Low Tide / height (m) | 1:38AM 0.59 | 3:09PM 0.54 | 2:40AM 0.68 | 3:37PM 0.56 | 4:22AM 0.76 | 4:13PM 0.57 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 8:28 | - | - | - | - | - | - | - | 8:29 | - | - | - | - | - | - | - | 8:30 | - |
 | |  | | | | | |  | |  | | | | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 18 | 21 | 26 | 28 | 27 | 20 | 17 | 16 | 15 | 15 | 17 | 17 | 17 | 15 | 14 | 13 | 13 | 15 | 16 | 16 | 15 | 13 | 13 |
| Feels °C (?) | 15 | 16 | 19 | 22 | 25 | 25 | 17 | 12 | 12 | 9 | 10 | 13 | 12 | 12 | 11 | 10 | 9 | 9 | 10 | 10 | 9 | 9 | 7 | 7 |
- 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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