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:
Sidmouth surfForecast / Devon (South) / UK
48hr Weather and Surf, issued 11 pm Tuesday 16 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Sidmouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sidmouth sea temperature is
11.8° C
(Which is slightly warmer than usual)How big are the waves at Sidmouth today?
The current surf forecast for Sidmouth at 6AM is: 0.1m 14s primary swell from a Southwest direction and 0.5m 3s secondary swell from a Southwest direction (forecast issued at 11:00pm December 16). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 2.5ft (0.8m) | 14s |
| Afternoon (17 Dec) | 6.5ft (2.0m) | 6s |
| Evening (17 Dec) | 8ft (2.5m) | 7s |
Table - waves today at Sidmouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 15 | 3 | 14 | 13 | 6 | 7 | 7 | 8 | 9 | 7 | 21 | 8 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 17 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 8 | 8 | 8 | 8 | 210 | 139 | 290 | 524 | 758 | 821 | 1836 | 172 | 4041 | 1688 | 2354 | 493 | 964 | 148 | 163 | 163 | 160 | 157 | 43 | 42 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | cross- on | cross- on | cross- on | on | on | on | cross- on | cross- on | cross- on | on | cross- on | on | cross- on | cross- on | cross- off | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 4:47AM 2.92 | 5:07PM 2.85 | 5:29AM 3.08 | 5:49PM 3.00 | 6:07AM 3.23 | |||||||||||||||||||
Low Tide / height (m) | 9:52PM 0.94 | 10:19AM 0.95 | 10:32PM 0.82 | 10:58AM 0.79 | 11:09PM 0.70 | 11:34AM 0.65 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 8:08 | - | - | - | - | - | - | - | 8:08 | - | - | - | - | - | - | - | 8:10 | - | - | - |
| Sunset | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - | 4:07 | - |
 | | |  |  |  | |  | | | |  | |  |  | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | 2 | 2 | 3 | 2 | 4 | 1 | - | 4 | 14 | 6 | 4 | - | - | - | - | - | - | - | - |
| Temp. °C | 7 | 6 | 6 | 8 | 10 | 10 | 10 | 11 | 11 | 12 | 11 | 11 | 11 | 12 | 11 | 11 | 9 | 7 | 7 | 7 | 7 | 10 | 10 | 8 |
| Feels °C (?) | 4 | 4 | 2 | 3 | 3 | 3 | 2 | 3 | 2 | 4 | 8 | 8 | 10 | 1 | 5 | 5 | 1 | 2 | 2 | 2 | 2 | 4 | 5 | 4 |
- 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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