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:
Dum Dums surfForecast / NSW – South Coast / Australia
48hr Weather and Surf, issued 10 pm Sunday 14 Dec 2025 AEDTForecast update in hr min s Forecast update imminent
Dum Dums surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dum Dums sea temperature is
19.7° C
(Which is slightly cooler than normal)How big are the waves at Dum Dums today?
The current surf forecast for Dum Dums at 2AM is: 2.5m 8s primary swell from a South direction and 2.2m 8s secondary swell from a South-southeast direction, 0.7m 8s secondary swell from a East-northeast direction (forecast issued at 10:00pm December 14). The wind direction is predicted to be cross-onshore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 6ft (1.9m) | 8s |
| Afternoon (15 Dec) | 4ft (1.2m) | 7s |
| Evening (15 Dec) | 5ft (1.6m) | 10s |
Table - waves today at Dum Dums. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sun 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| 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) (?) | 8 | 7 | 8 | 9 | 8 | 8 | 7 | 7 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 11 | 11 | 9 | 11 | 11 | 11 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 117 | 295 | 891 | 586 | 489 | 354 | 160 | 111 | 562 | 441 | 489 | 431 | 377 | 353 | 397 | 404 | 330 | 307 | 242 | 103 | 191 | 191 | 146 | 249 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | off | cross- off | cross- on | cross- on | cross |
High Tide / height (m) | 5:10PM 1.01 | 5:51AM 1.29 | 6:08PM 0.98 | 6:30AM 1.35 | 7:01PM 0.96 | 7:08AM 1.40 | ||||||||||||||||||
Low Tide / height (m) | 11:10PM 0.40 | 12:27PM 0.44 | 11:50PM 0.42 | 1:15PM 0.37 | 12:30AM 0.44 | 1:58PM 0.31 | ||||||||||||||||||
Sun 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - |
| Sunset | 8:07 | - | - | - | - | - | - | - | 8:08 | - | - | - | - | - | - | - | 8:08 | - | - | - | - | - | - | - |
 |  | | | | |  | | | | | | | |  | | | | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 16 | 16 | 16 | 15 | 16 | 18 | 18 | 18 | 18 | 17 | 18 | 16 | 17 | 23 | 24 | 23 |
| Feels °C (?) | 13 | 14 | 15 | 14 | 14 | 13 | 14 | 14 | 13 | 14 | 15 | 14 | 15 | 16 | 15 | 15 | 17 | 17 | 18 | 16 | 16 | 20 | 20 | 20 |
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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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