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:
Cottesloe Beach surfForecast / WA – Perth City / Australia
48hr Weather and Surf, issued 7 pm Saturday 13 Dec 2025 AWSTForecast update in hr min s Forecast update imminent
Cottesloe Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cottesloe Beach sea temperature is
22.9° C
(Which is 2.5°C warmer than normal for this time of year)How big are the waves at Cottesloe Beach today?
The current surf forecast for Cottesloe Beach at 1AM is: 1.3m 11s primary swell from a West-southwest direction and 0.2m 15s secondary swell from a West-southwest direction (forecast issued at 07:00pm December 13). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 3.5ft (1.0m) | 11s |
| Afternoon (14 Dec) | 3ft (0.9m) | 11s |
| Evening (14 Dec) | 3ft (0.9m) | 11s |
Table - waves today at Cottesloe Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 16 | 15 | 15 | 15 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 243 | 234 | 173 | 396 | 317 | 247 | 186 | 186 | 170 | 193 | 204 | 215 | 215 | 215 | 215 | 211 | 193 | 151 | 146 | 220 | 204 | 196 | 242 | 478 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | on | cross- on | cross- on | cross | cross- off | cross | cross- off | cross- on | cross- on |
High Tide / height (m) | 6:08PM 0.51 | 6:03AM 0.23 | 6:23PM 0.56 | 6:45PM 0.61 | ||||||||||||||||||||
Low Tide / height (m) | 4:20AM 0.23 | 7:31AM 0.23 | 4:15AM 0.17 | 4:30AM 0.13 | ||||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:03 | - | - | - | - | - | - | - | 5:03 | - | - | - | - | - | - | - | 5:05 | - | - |
| Sunset | 7:16 | - | - | - | - | - | - | - | 7:16 | - | - | - | - | - | - | - | 7:17 | - | - | - | - | - | - | - |
 |  | | | | | |  |  |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 16 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 29 | 31 | 31 | 27 | 25 | 27 | 33 | 36 | 27 | 26 | 27 | 26 | 27 | 28 | 28 | 25 | 26 | 23 | 23 | 22 | 21 | 22 | 22 | 22 |
| Feels °C (?) | 26 | 27 | 24 | 22 | 20 | 21 | 28 | 33 | 21 | 21 | 21 | 23 | 25 | 27 | 27 | 25 | 26 | 23 | 25 | 23 | 22 | 23 | 21 | 22 |
- 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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