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:
Donut Island surfForecast / Coromandel / New Zealand
48hr Weather and Surf, issued 12 am Friday 12 Dec 2025 NZDTForecast update in hr min s Forecast update imminent
Donut Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Donut Island sea temperature is
20.8° C
(Which is 2.7°C warmer than normal for this time of year)How big are the waves at Donut Island today?
The current surf forecast for Donut Island at 8AM is: 1.1m 8s primary swell from a Northeast direction and 0.8m 8s secondary swell from a East direction (forecast issued at 12:00am December 12). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 3.5ft (1.1m) | 8s |
| Afternoon (12 Dec) | 3.5ft (1.0m) | 8s |
| Evening (12 Dec) | 3ft (0.9m) | 8s |
Table - waves today at Donut Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 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 | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 6 | 8 | 8 | 8 | 8 | 8 | 6 | 6 | 6 | 6 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 413 | 331 | 160 | 181 | 156 | 129 | 129 | 126 | 109 | 107 | 90 | 61 | 67 | 40 | 63 | 60 | 51 | 75 | 116 | 59 | 50 | 37 | 41 | 88 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | off | off | off | off | glass | cross- on | cross- on | cross | cross | cross- off | cross | cross- on | on | cross- on | cross- on | cross- on | glass | cross | cross- on | on | on | on |
High Tide / height (m) | 1:08AM 1.64 | 1:34PM 1.76 | 2:05AM 1.58 | 2:27PM 1.68 | 3:02AM 1.54 | 3:19PM 1.61 | ||||||||||||||||||
Low Tide / height (m) | 7:17AM 0.27 | 7:57PM 0.28 | 8:10AM 0.36 | 8:49PM 0.32 | 9:04AM 0.44 | |||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - |
| Sunset | - | - | - | - | - | - | - | 8:29 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:30 |
 | | |  |  | | |  | | | | | | | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 17 | 16 | 15 | 18 | 21 | 23 | 22 | 19 | 16 | 14 | 14 | 16 | 19 | 20 | 19 | 16 | 16 | 15 | 15 | 18 | 19 | 19 | 18 |
| Feels °C (?) | 19 | 16 | 13 | 11 | 14 | 18 | 21 | 19 | 14 | 12 | 10 | 11 | 13 | 16 | 17 | 17 | 13 | 14 | 15 | 13 | 17 | 17 | 17 | 16 |
- 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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