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:
Glenelg Rivermouth surfForecast / VIC – Far West / Australia
48hr Weather and Surf, issued 3 am Wednesday 17 Dec 2025 ACDTForecast update in hr min s Forecast update imminent
Glenelg Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Glenelg Rivermouth sea temperature is
16.2° C
(Which is normal for this time of year)How big are the waves at Glenelg Rivermouth today?
The current surf forecast for Glenelg Rivermouth at 9AM is: 1.2m 10s primary swell from a South direction and 1.0m 11s secondary swell from a Southwest direction (forecast issued at 03:30am December 17). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 4ft (1.2m) | 10s |
| Afternoon (17 Dec) | 3.5ft (1.0m) | 10s |
| Evening (17 Dec) | 2.5ft (0.8m) | 11s |
Table - waves today at Glenelg Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| 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) (?) | 10 | 10 | 10 | 10 | 10 | 11 | 9 | 11 | 10 | 11 | 13 | 12 | 14 | 13 | 13 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 11 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 450 | 384 | 277 | 230 | 183 | 175 | 133 | 134 | 127 | 151 | 325 | 199 | 268 | 511 | 560 | 502 | 486 | 585 | 649 | 585 | 463 | 440 | 431 | 367 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | glass | on | on | glass | cross- off | off | off | off | cross | on | cross- on | cross | cross- off | off | off | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 12:08AM 0.81 | 12:33AM 0.88 | 1:00AM 0.94 | 11:01AM 0.37 | ||||||||||||||||||||
Low Tide / height (m) | 3:58PM 0.19 | 4:41PM 0.15 | 9:11AM 0.36 | 5:21PM 0.11 | ||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| Sunrise | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 8:24 | - | - | - | - | - | - | - | 8:25 | - | - | - | - | - | - | - | 8:25 | - |
 | |  | | | | | | | | | | |  |  |  |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 15 | 17 | 26 | 27 | 24 | 21 | 21 | 20 | 19 | 20 | 30 | 30 | 30 | 21 | 21 | 19 | 20 | 20 | 25 | 22 | 19 | 15 | 14 |
| Feels °C (?) | 11 | 13 | 14 | 24 | 23 | 21 | 20 | 19 | 18 | 16 | 17 | 27 | 26 | 26 | 20 | 19 | 16 | 16 | 18 | 22 | 19 | 16 | 13 | 11 |
- 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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