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:
Tahunanui bar surfForecast / Nelson – Tasman Bay / New Zealand
48hr Weather and Surf, issued 6 pm Monday 15 Dec 2025 NZDTForecast update in hr min s Forecast update imminent
Tahunanui bar surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tahunanui bar sea temperature is
19.3° C
(Which is 3.9°C warmer than normal for this time of year)How big are the waves at Tahunanui bar today?
The current surf forecast for Tahunanui bar at 1AM is: 1.4m 6s primary swell from a North direction (forecast issued at 06:00pm December 15). The wind direction is predicted to be onshore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 6ft (1.9m) | 8s |
| Afternoon (16 Dec) | 4.5ft (1.4m) | 8s |
| Evening (16 Dec) | 3.5ft (1.0m) | 7s |
Table - waves today at Tahunanui bar. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| 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 | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 15 | 14 | 14 | 4 | 4 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 151 | 139 | 128 | 156 | 297 | 521 | 398 | 456 | 221 | 152 | 86 | 68 | 37 | 24 | 15 | 7 | 7 | 42 | 21 | 20 | 13 | 10 | 6 | 6 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | on | cross- off | on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross | glass | off | cross- off | glass | on |
High Tide / height (m) | 7:28PM 3.45 | 7:54AM 3.40 | 8:16PM 3.48 | 8:52AM 3.54 | 9:01PM 3.51 | 9:41AM 3.72 | ||||||||||||||||||
Low Tide / height (m) | 1:16PM 1.44 | 1:43AM 1.38 | 2:09PM 1.39 | 2:27AM 1.31 | 2:54PM 1.32 | 3:08AM 1.25 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - |
| Sunset | - | 8:54 | - | - | - | - | - | - | - | 8:55 | - | - | - | - | - | - | - | 8:55 | - | - | - | - | - | - |
 |  |  |  |  |  | | | | |  | | |  | | | |  | | | | | | | |
Rain (mm) | 1 | - | - | - | 1 | 5 | 5 | 4 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 19 | 17 | 17 | 17 | 18 | 17 | 17 | 18 | 17 | 13 | 11 | 10 | 10 | 13 | 17 | 18 | 16 | 13 | 11 | 11 | 11 | 15 | 17 |
| Feels °C (?) | 13 | 14 | 14 | 13 | 12 | 13 | 16 | 16 | 15 | 11 | 9 | 8 | 6 | 7 | 9 | 11 | 13 | 12 | 11 | 9 | 9 | 9 | 13 | 15 |
- 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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