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:
Wainui Bay surfForecast / Northland / New Zealand
48hr Weather and Surf, issued 12 pm Wednesday 17 Dec 2025 NZDTForecast update in hr min s Forecast update imminent
Wainui Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Wainui Bay sea temperature is
20.1° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Wainui Bay today?
The current surf forecast for Wainui Bay at 8PM is: 0.7m 8s primary swell from a East-northeast direction and 0.3m 13s secondary swell from a North direction (forecast issued at 12:00pm December 17). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 2.5ft (0.8m) | 8s |
| Afternoon (17 Dec) | 2ft (0.6m) | 7s |
| Evening (17 Dec) | 2.5ft (0.7m) | 8s |
Table - waves today at Wainui Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| 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 | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 12 | 12 | 8 | 8 | 8 | 8 | 8 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 48 | 42 | 41 | 62 | 58 | 60 | 82 | 57 | 51 | 49 | 48 | 46 | 46 | 46 | 46 | 80 | 72 | 69 | 69 | 107 | 107 | 109 | 104 | 96 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 6:43PM 1.88 | 7:29AM 1.93 | 7:29PM 1.87 | 8:14AM 1.96 | 8:12PM 1.88 | |||||||||||||||||||
Low Tide / height (m) | 12:39PM 0.81 | 12:59AM 0.66 | 1:24PM 0.80 | 1:44AM 0.64 | 2:07PM 0.77 | 2:27AM 0.62 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:05 |
| Sunset | - | - | - | 8:35 | - | - | - | - | - | - | - | 8:35 | - | - | - | - | - | - | - | 8:36 | - | - | - | - |
 | |  | |  |  | | | | | | | | | | | | | |  |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 20 | 20 | 19 | 16 | 15 | 14 | 14 | 18 | 19 | 21 | 20 | 16 | 15 | 14 | 14 | 19 | 21 | 20 | 21 | 18 | 18 | 18 | 18 |
| Feels °C (?) | 14 | 16 | 14 | 14 | 13 | 13 | 11 | 12 | 15 | 16 | 17 | 16 | 13 | 14 | 12 | 13 | 17 | 17 | 17 | 17 | 15 | 15 | 14 | 14 |
- 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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