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:
Flat Rock surfForecast / NSW – North Coast / Australia
48hr Weather and Surf, issued 10 pm Tuesday 16 Dec 2025 AEDTForecast update in hr min s Forecast update imminent
Flat Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Flat Rock sea temperature is
24.5° C
(Which is normal for this time of year)How big are the waves at Flat Rock today?
The current surf forecast for Flat Rock at 4AM is: 1.7m 7s primary swell from a East-southeast direction and 0.7m 11s secondary swell from a South direction, 0.5m 14s secondary swell from a South-southeast direction (forecast issued at 10:00pm December 16). The wind direction is predicted to be cross-onshore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 5ft (1.6m) | 7s |
| Afternoon (17 Dec) | 5ft (1.5m) | 7s |
| Evening (17 Dec) | 4.5ft (1.3m) | 8s |
Table - waves today at Flat Rock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 11 AM | 2 PM | 5 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 371 | 330 | 294 | 302 | 256 | 242 | 225 | 203 | 204 | 196 | 163 | 168 | 164 | 138 | 137 | 137 | 169 | 145 | 145 | 118 | 118 | 92 | 72 | 55 |
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 | cross- on | cross- on | cross- on | glass | glass | on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross | cross- on | cross- on |
High Tide / height (m) | 6:30PM 0.95 | 7:33AM 1.41 | 7:18PM 0.95 | 8:11AM 1.50 | 8:04PM 0.95 | 8:48AM 1.57 | ||||||||||||||||||
Low Tide / height (m) | 12:29AM 0.24 | 2:05PM 0.48 | 1:08AM 0.25 | 2:50PM 0.44 | 1:47AM 0.25 | 3:32PM 0.40 | ||||||||||||||||||
Tue 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - |
| Sunset | - | - | - | - | - | - | - | 7:39 | - | - | - | - | - | - | - | 7:40 | - | - | - | - | - | - | - | 7:40 |
 |  | | |  | | |  |  | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 23 | 23 | 23 | 22 | 21 | 19 | 19 | 21 | 25 | 26 | 26 |
| Feels °C (?) | 20 | 21 | 20 | 19 | 20 | 20 | 20 | 21 | 20 | 21 | 22 | 21 | 22 | 23 | 22 | 21 | 21 | 20 | 18 | 19 | 21 | 23 | 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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