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:
Renaca surfForecast / Santiago / Chile
48hr Weather and Surf, issued 2 am Sunday 14 Dec 2025 -04Forecast update in hr min s Forecast update imminent
Renaca surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Renaca sea temperature is
16.3° C
(Which is normal for this time of year)How big are the waves at Renaca today?
The current surf forecast for Renaca at 7AM is: 1.7m 12s primary swell from a Southwest direction and 0.4m 13s secondary swell from a West-northwest direction, 1.2m 6s secondary swell from a Southwest direction (forecast issued at 02:00am December 14). The wind direction is predicted to be cross-onshore.
| Time (-04) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 5.5ft (1.7m) | 12s |
| Afternoon (14 Dec) | 7ft (2.1m) | 12s |
| Evening (14 Dec) | 5ft (1.5m) | 12s |
Table - waves today at Renaca. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 8 | 12 | 9 | 9 | 11 | 12 | 8 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1326 | 1387 | 959 | 860 | 1319 | 1298 | 689 | 624 | 682 | 687 | 631 | 544 | 1491 | 1984 | 1334 | 1637 | 1944 | 1876 | 1470 | 1224 | 1202 | 1275 | 1249 | 1290 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | cross- on |
High Tide / height (m) | 7:05AM 0.93 | 8:05PM 1.11 | 8:06AM 0.88 | 8:47PM 1.19 | 9:01AM 0.86 | |||||||||||||||||||
Low Tide / height (m) | 1:24PM 0.28 | 2:29AM 0.40 | 2:05PM 0.30 | 3:21AM 0.33 | 2:44PM 0.30 | |||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 8:49 | - | - | - | - | - | - | - | 8:50 | - | - | - | - | - | - | - | 8:51 | - |
 | |  |  | |  | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 13 | 15 | 17 | 18 | 19 | 15 | 14 | 13 | 13 | 18 | 23 | 24 | 21 | 17 | 16 | 17 | 17 | 20 | 24 | 24 | 23 | 18 |
| Feels °C (?) | 13 | 12 | 11 | 12 | 13 | 14 | 14 | 10 | 11 | 10 | 10 | 16 | 17 | 17 | 13 | 14 | 14 | 15 | 15 | 18 | 21 | 21 | 21 | 17 |
- 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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