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 am 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
19.8° C
(Which is 4.4°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 1PM is: 1.1m 5s primary swell from a North direction (forecast issued at 06:00am December 15). The wind direction is predicted to be onshore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 1.5ft (0.5m) | 4s |
| Afternoon (15 Dec) | 4.5ft (1.3m) | 6s |
| Evening (15 Dec) | 4.5ft (1.4m) | 6s |
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 | Thu 18 | |||||||||||||||||||||
| 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 | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 4 | 4 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 15 | 15 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 18 | 18 | 9 | 60 | 130 | 144 | 153 | 229 | 462 | 649 | 763 | 394 | 493 | 138 | 91 | 54 | 38 | 24 | 15 | 15 | 43 | 42 | 21 | 20 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | glass | on | on | on | on | on | on | on | on | on | cross- off | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | on | cross- on | glass | cross- on |
High Tide / height (m) | 6:52AM 3.34 | 7:28PM 3.45 | 7:54AM 3.40 | 8:16PM 3.48 | 8:52AM 3.54 | 9:01PM 3.51 | ||||||||||||||||||
Low Tide / height (m) | 1:16PM 1.44 | 1:43AM 1.38 | 2:09PM 1.39 | 2:27AM 1.31 | 2:54PM 1.32 | |||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| Sunrise | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - |
| Sunset | - | - | - | - | - | 8:54 | - | - | - | - | - | - | - | 8:55 | - | - | - | - | - | - | - | 8:55 | - | - |
 |  | | | | | |  | |  |  | | | |  |  | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | 1 | 9 | 4 | 2 | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 13 | 17 | 18 | 19 | 19 | 17 | 18 | 18 | 18 | 17 | 16 | 18 | 17 | 13 | 10 | 10 | 10 | 16 | 19 | 15 | 15 | 13 | 14 |
| Feels °C (?) | 14 | 13 | 16 | 14 | 13 | 14 | 13 | 15 | 13 | 16 | 18 | 15 | 16 | 11 | 9 | 7 | 6 | 6 | 10 | 15 | 9 | 12 | 12 | 13 |
- 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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