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:
Dunedin - St Clair surfForecast / Otago / New Zealand
48hr Weather and Surf, issued 6 am Friday 12 Dec 2025 NZDTForecast update in hr min s Forecast update imminent
Dunedin - St Clair surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dunedin - St Clair sea temperature is
14.9° C
(Which is 3.5°C warmer than normal for this time of year)How big are the waves at Dunedin - St Clair today?
The current surf forecast for Dunedin - St Clair at 11AM is: 0.8m 6s primary swell from a South-southwest direction and 0.3m 13s secondary swell from a South-southwest direction (forecast issued at 06:00am December 12). An open ocean swell of 0.2m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 2.5ft (0.8m) | 6s |
| Afternoon (12 Dec) | 2.5ft (0.8m) | 7s |
| Evening (12 Dec) | 3ft (0.9m) | 8s |
Table - waves today at Dunedin - St Clair. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| 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) (?) | 14 | 14 | 6 | 6 | 7 | 8 | 8 | 10 | 10 | 10 | 8 | 8 | 8 | 7 | 10 | 10 | 10 | 9 | 8 | 8 | 8 | 12 | 12 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 40 | 36 | 43 | 47 | 53 | 88 | 238 | 442 | 588 | 96 | 57 | 48 | 45 | 40 | 35 | 19 | 49 | 44 | 24 | 22 | 22 | 14 | 28 | 41 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross | cross | cross | cross- off | cross- off | cross- off | glass | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 11:10AM 1.70 | 11:37PM 1.65 | 12:01PM 1.66 | 12:28AM 1.65 | 12:50PM 1.64 | |||||||||||||||||||
Low Tide / height (m) | 4:35AM 0.31 | 5:09PM 0.34 | 5:35AM 0.36 | 6:06PM 0.36 | 6:34AM 0.39 | 7:00PM 0.37 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Mon 15 | |||||||||||||||||||||
| Sunrise | - | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - |
| Sunset | - | - | - | - | - | 9:21 | - | - | - | - | - | - | - | 9:22 | - | - | - | - | - | - | - | 9:22 | - | - |
 |  | |  | |  |  | | | | | | | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 10 | 11 | 15 | 16 | 15 | 12 | 10 | 9 | 10 | 13 | 14 | 15 | 13 | 12 | 11 | 12 | 12 | 15 | 16 | 19 | 20 | 16 | 15 |
| Feels °C (?) | 5 | 5 | 5 | 9 | 10 | 10 | 9 | 7 | 6 | 8 | 12 | 11 | 10 | 7 | 8 | 9 | 11 | 11 | 15 | 14 | 15 | 15 | 12 | 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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