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 Saturday 13 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
17.6° C
(Which is slightly warmer than usual)How big are the waves at Pennington Bay today?
The current surf forecast for Pennington Bay at 8AM is: 0.6m 16s primary swell from a South direction and 0.7m 13s secondary swell from a South direction, 1.2m 6s secondary swell from a South-southeast direction (forecast issued at 03:30am December 13). The wind direction is predicted to be cross-onshore.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 3.5ft (1.0m) | 15s |
| Afternoon (13 Dec) | 3.5ft (1.0m) | 14s |
| Evening (13 Dec) | 3.5ft (1.0m) | 13s |
Table - waves today at Pennington Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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) (?) | 12 | 12 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 670 | 762 | 181 | 435 | 423 | 377 | 355 | 350 | 273 | 202 | 198 | 852 | 1756 | 5050 | 4382 | 4120 | 2846 | 2455 | 2031 | 1811 | 1726 | 1462 | 1754 | 1764 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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 | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 9:05AM 0.99 | 10:43PM 0.95 | 9:51AM 0.84 | 12:14AM 1.01 | 11:12AM 0.71 | |||||||||||||||||||
Low Tide / height (m) | 2:40AM 0.68 | 3:37PM 0.56 | 4:22AM 0.76 | 4:13PM 0.57 | 8:49AM 0.69 | 5:05PM 0.58 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - | - | - | 5:56 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 8:29 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:30 | - |
 | |  | | | | |  | | |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 15 | 16 | 17 | 17 | 16 | 14 | 13 | 13 | 15 | 16 | 16 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 12 |
| Feels °C (?) | 10 | 10 | 11 | 12 | 12 | 12 | 12 | 10 | 9 | 9 | 10 | 10 | 10 | 7 | 7 | 8 | 8 | 9 | 9 | 9 | 8 | 7 | 7 | 6 |
- 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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