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:
Kelps surfForecast / SA – East Coast / Australia
48hr Weather and Surf, issued 3 am Saturday 13 Dec 2025 ACDTForecast update in hr min s Forecast update imminent
Kelps surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kelps sea temperature is
17.3° C
(Which is 1.4°C warmer than normal for this time of year)How big are the waves at Kelps today?
The current surf forecast for Kelps at 9AM is: 1.9m 15s primary swell from a Southwest direction and 0.9m 16s secondary swell from a Southwest direction, 0.9m 5s secondary swell from a South-southwest direction (forecast issued at 03:30am December 13). The wind direction is predicted to be cross-onshore.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 6ft (1.9m) | 15s |
| Afternoon (13 Dec) | 6ft (1.9m) | 14s |
| Evening (13 Dec) | 6ft (1.8m) | 13s |
Table - waves today at Kelps. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| 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) (?) | 12 | 12 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 528 | 528 | 416 | 1466 | 1512 | 1358 | 1144 | 1053 | 721 | 1381 | 1602 | 2335 | 4332 | 8700 | 9509 | 7121 | 5633 | 5621 | 4369 | 5828 | 4715 | 4174 | 3446 | 3113 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | on | on | cross- on | cross | cross | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on | cross- on | cross- on |
High Tide / height (m) | 4:34AM 0.61 | 4:12AM 0.55 | 11:57PM 0.57 | |||||||||||||||||||||
Low Tide / height (m) | 12:15PM 0.29 | 1:14PM 0.26 | 2:19PM 0.23 | |||||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | ||||||||||||||||||||||
| Sunrise | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 8:24 | - | - | - | - | - | - | - | 8:24 | - | - | - | - | - | - | - | 8:25 | - |
 |  |  |  | | | | | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 |
| Feels °C (?) | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 8 | 9 | 7 | 6 | 6 | 5 | 5 | 6 | 6 | 6 | 7 | 6 | 7 | 6 | 6 | 6 |
- 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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