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 12 pm Saturday 13 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
14.4° C
(Which is 3.0°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 5PM is: 0.4m 11s primary swell from a South-southwest direction and 0.6m 7s secondary swell from a South direction, 0.3m 2s secondary swell from a East-northeast direction (forecast issued at 12:00pm December 13). The wind direction is predicted to be cross-shore.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 2.5ft (0.7m) | 8s |
| Afternoon (13 Dec) | 1.5ft (0.4m) | 11s |
| Evening (13 Dec) | 1.5ft (0.4m) | 10s |
Table - waves today at Dunedin - St Clair. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 11 | 7 | 10 | 7 | 10 | 9 | 8 | 8 | 8 | 12 | 12 | 14 | 14 | 14 | 14 | 13 | 13 | 4 | 13 | 10 | 10 | 18 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 70 | 63 | 42 | 36 | 35 | 24 | 49 | 43 | 24 | 22 | 21 | 14 | 29 | 69 | 69 | 66 | 36 | 35 | 17 | 17 | 17 | 10 | 10 | 104 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- on | cross | cross- off | cross- off | cross- off | cross- off | glass | cross | cross | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- on | on | on | glass | cross |
High Tide / height (m) | 12:01PM 1.66 | 12:28AM 1.65 | 12:50PM 1.64 | 1:15AM 1.65 | 1:36PM 1.62 | 2:00AM 1.66 | ||||||||||||||||||
Low Tide / height (m) | 6:06PM 0.36 | 6:34AM 0.39 | 7:00PM 0.37 | 7:29AM 0.39 | 7:50PM 0.36 | |||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 | - | - | - | - | - | - | - | 5:41 |
| Sunset | - | - | - | 9:22 | - | - | - | - | - | - | - | 9:22 | - | - | - | - | - | - | - | 9:22 | - | - | - | - |
 |  | | |  |  | | | | | | | |  | |  | | | | |  | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 3 | 1 | 1 | 1 |
| Temp. °C | 13 | 14 | 14 | 14 | 12 | 11 | 11 | 12 | 14 | 16 | 18 | 19 | 17 | 17 | 20 | 19 | 21 | 19 | 21 | 14 | 12 | 12 | 12 | 12 |
| Feels °C (?) | 11 | 10 | 9 | 9 | 8 | 9 | 10 | 11 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 17 | 15 | 15 | 10 | 9 | 11 | 12 | 11 |
- 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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