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70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
Cactus surfForecast / SA – Nullarbor / Australia
48hr Weather and Surf, issued 3 am Monday 15 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
20.1° C
(Which is 1.8°C warmer than normal for this time of year)How big are the waves at Cactus today?
The current surf forecast for Cactus at 9AM is: 1.7m 13s primary swell from a South-southwest direction (forecast issued at 03:30am December 15). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 5.5ft (1.7m) | 13s |
| Afternoon (15 Dec) | 4.5ft (1.3m) | 12s |
| Evening (15 Dec) | 4ft (1.2m) | 12s |
Table - waves today at Cactus. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| 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) (?) | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 16 | 15 | 15 | 10 | 10 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1428 | 1351 | 1143 | 987 | 908 | 502 | 430 | 330 | 319 | 263 | 217 | 285 | 234 | 215 | 172 | 146 | 110 | 58 | 64 | 75 | 57 | 68 | 122 | 75 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross | cross- off | cross- off |
High Tide / height (m) | 12:04AM 0.85 | 10:52AM 0.57 | 11:53PM 0.98 | 11:36AM 0.63 | 12:06AM 1.11 | 12:06PM 0.68 | ||||||||||||||||||
Low Tide / height (m) | 7:16AM 0.52 | 4:31PM 0.38 | 6:46AM 0.42 | 5:04PM 0.31 | 6:55AM 0.32 | 5:34PM 0.24 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| Sunrise | - | - | 6:24 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 8:38 | - | - | - | - | - | - | - | 8:39 | - | - | - | - | - | - | - | 8:40 | - |
 | |  | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 15 | 15 | 16 | 18 | 17 | 17 | 17 | 19 | 17 | 17 | 24 | 28 | 29 | 25 | 21 | 24 | 25 | 26 | 32 | 35 | 35 | 32 | 28 |
| Feels °C (?) | 11 | 10 | 10 | 10 | 12 | 11 | 11 | 11 | 14 | 11 | 12 | 20 | 24 | 23 | 20 | 17 | 19 | 21 | 20 | 25 | 31 | 29 | 25 | 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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