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:
Cactus surfForecast / SA – Nullarbor / Australia
48hr Weather and Surf, issued 9 pm Saturday 13 Dec 2025 ACDTForecast update in hr min s Forecast update imminent
Cactus surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cactus sea temperature is
20.5° C
(Which is 2.2°C warmer than normal for this time of year)How big are the waves at Cactus today?
The current surf forecast for Cactus at 3AM is: 0.8m 12s primary swell from a Southwest direction and 0.7m 5s secondary swell from a South-southwest direction (forecast issued at 09:30pm December 13). The wind direction is predicted to be cross-shore.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 2.5ft (0.8m) | 12s |
| Afternoon (14 Dec) | 2.5ft (0.7m) | 15s |
| Evening (14 Dec) | 4.5ft (1.3m) | 15s |
Table - waves today at Cactus. (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) (?) | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 239 | 235 | 184 | 175 | 175 | 172 | 172 | 207 | 472 | 939 | 1297 | 1351 | 1004 | 987 | 746 | 502 | 430 | 330 | 319 | 228 | 217 | 285 | 280 | 213 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross | cross- on | cross- on | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross |
High Tide / height (m) | 1:57AM 0.78 | 12:04AM 0.85 | 10:52AM 0.57 | 11:53PM 0.98 | 11:36AM 0.63 | |||||||||||||||||||
Low Tide / height (m) | 3:40PM 0.46 | 7:16AM 0.52 | 4:31PM 0.38 | 6:46AM 0.42 | ||||||||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:26 | - | - | - |
| Sunset | 8:37 | - | - | - | - | - | - | - | 8:38 | - | - | - | - | - | - | - | 8:38 | - | - | - | - | - | - | - |
 |  | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 16 | 16 | 15 | 14 | 16 | 18 | 18 | 17 | 17 | 19 | 17 | 16 | 22 | 27 | 27 |
| Feels °C (?) | 12 | 12 | 13 | 14 | 14 | 14 | 13 | 12 | 12 | 11 | 12 | 10 | 9 | 10 | 12 | 12 | 11 | 12 | 14 | 11 | 11 | 18 | 24 | 20 |
- 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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