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:
Seaford Reef surfForecast / SA – Adelaide / Australia
48hr Weather and Surf, issued 9 pm Saturday 13 Dec 2025 ACDTForecast update in hr min s Forecast update imminent
Seaford Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Seaford Reef sea temperature is
19.6° C
(Which is 2.2°C warmer than normal for this time of year)How big are the waves at Seaford Reef today?
The current surf forecast for Seaford Reef at 12AM is: 0.6m 4s primary swell from a Southwest direction and 0.1m 12s secondary swell from a Southwest direction (forecast issued at 09:30pm December 13). The wind direction is predicted to be cross-onshore.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 2.5ft (0.8m) | 4s |
| Afternoon (14 Dec) | 2.5ft (0.8m) | 5s |
| Evening (14 Dec) | 2.5ft (0.8m) | 5s |
Table - waves today at Seaford Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 5 | 7 | 7 | 3 | 4 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 11 | 9 | 16 | 17 | 21 | 24 | 25 | 25 | 31 | 29 | 10 | 5 | 5 | 5 | 5 | 9 | 2 | 5 | 5 | 1 | 1 | 1 | 1 | 1 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross |
High Tide / height (m) | 10:50PM 1.33 | 9:56AM 1.19 | 1:03AM 1.45 | 1:02PM 1.03 | 2:36AM 1.64 | 3:35PM 1.08 | ||||||||||||||||||
Low Tide / height (m) | 4:40AM 1.02 | 4:46PM 0.77 | 8:58AM 0.96 | 6:44PM 0.84 | 10:09AM 0.76 | |||||||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - |
| Sunset | 8:23 | - | - | - | - | - | - | - | 8:24 | - | - | - | - | - | - | - | 8:25 | - | - | - | - | - | - | - |
 |  | | | |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 14 | 14 | 14 | 15 | 17 | 19 | 19 | 15 | 12 | 12 | 11 | 13 | 16 | 18 | 17 | 14 | 12 | 12 | 12 | 12 | 18 | 23 | 25 |
| Feels °C (?) | 13 | 12 | 11 | 11 | 11 | 13 | 14 | 13 | 9 | 7 | 8 | 8 | 9 | 11 | 12 | 11 | 8 | 7 | 8 | 8 | 7 | 14 | 20 | 21 |
- 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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