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:
Porpoise Bay surfForecast / Catlins / New Zealand
48hr Weather and Surf, issued 12 pm Friday 12 Dec 2025 NZDTForecast update in hr min s Forecast update imminent
Porpoise Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porpoise Bay sea temperature is
14.5° C
(Which is 3.2°C warmer than normal for this time of year)How big are the waves at Porpoise Bay today?
The current surf forecast for Porpoise Bay at 5PM is: 1.9m 6s primary swell from a West-southwest direction and 0.6m 12s secondary swell from a Southwest direction, 0.2m 11s secondary swell from a East direction (forecast issued at 12:00pm December 12). The wind direction is predicted to be cross-shore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 2.5ft (0.8m) | 13s |
| Afternoon (12 Dec) | 6ft (1.8m) | 6s |
| Evening (12 Dec) | 5.5ft (1.7m) | 10s |
Table - waves today at Porpoise Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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) (?) | 13 | 13 | 6 | 10 | 10 | 10 | 9 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 13 | 9 | 12 | 12 | 12 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 246 | 239 | 233 | 609 | 530 | 484 | 225 | 522 | 440 | 268 | 311 | 239 | 196 | 125 | 94 | 104 | 53 | 110 | 112 | 139 | 350 | 407 | 288 | 224 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross | cross | cross | cross- off | cross- off | on | cross | cross | cross- off | glass | glass | cross- off | glass | cross- on | cross | cross | cross- off | off | off | cross- off |
High Tide / height (m) | 9:19AM 1.97 | 9:46PM 1.92 | 10:17AM 1.91 | 10:44PM 1.88 | 11:11AM 1.88 | 11:39PM 1.88 | ||||||||||||||||||
Low Tide / height (m) | 3:35PM 0.44 | 4:00AM 0.43 | 4:28PM 0.47 | 4:53AM 0.48 | 5:19PM 0.49 | 5:43AM 0.51 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:43 | - | - | - | - | - | - | - | 5:43 |
| Sunset | - | - | - | 9:30 | - | - | - | - | - | - | - | 9:30 | - | - | - | - | - | - | - | 9:31 | - | - | - | - |
 | |  | |  |  |  |  |  | | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 13 | 12 | 12 | 11 | 11 | 10 | 8 | 11 | 15 | 16 | 16 | 13 | 11 | 11 | 11 | 14 | 16 | 17 | 17 | 18 | 15 | 16 | 16 |
| Feels °C (?) | 4 | 5 | 6 | 7 | 7 | 7 | 7 | 5 | 9 | 13 | 13 | 12 | 11 | 11 | 11 | 10 | 14 | 14 | 14 | 14 | 16 | 13 | 14 | 12 |
- 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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