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:
Big Lefts surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Tuesday 16 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Big Lefts surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Lefts sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at Big Lefts today?
The current surf forecast for Big Lefts at 9PM is: 1.2m 6s primary swell from a South direction (forecast issued at 07:00pm December 16). An open ocean swell of 1.0m 12s is not directed at the surf break, a second open ocean swell of 0.7m 14s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | - | - |
| Afternoon (16 Dec) | 4.5ft (1.3m) | 6s |
| Evening (16 Dec) | 4ft (1.2m) | 6s |
Table - waves today at Big Lefts. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 130 | 113 | 109 | 98 | 95 | 115 | 112 | 101 | 92 | 77 | 61 | 46 | 34 | 39 | 29 | 29 | 134 | 102 | 33 | 34 | 35 | 41 | 41 | 38 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | glass | glass | glass | glass | on | on |
High Tide / height (m) | 2:53AM 0.66 | 2:06PM 0.20 | 3:26AM 0.69 | 2:47PM 0.19 | 4:00AM 0.70 | |||||||||||||||||||
Low Tide / height (m) | 7:08PM 0.01 | 10:23AM 0.13 | 7:39PM -0.00 | 11:00AM 0.12 | 8:12PM -0.01 | 11:35AM 0.10 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:03 | - | - |
| Sunset | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - |
 |  | | | | | | | | | | | | |  | |  | | |  |  |  | | | |
Rain (mm) | 3 | 5 | 4 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 4 | 4 | 3 | 2 | - | - | - | 1 | 1 | - | - | - | - | - |
| Temp. °C | 25 | 25 | 25 | 24 | 25 | 24 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 |
| Feels °C (?) | 24 | 24 | 25 | 23 | 24 | 23 | 23 | 23 | 23 | 25 | 25 | 24 | 24 | 24 | 24 | 26 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 27 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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