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Surf Forecasts:
Mawgan Porth surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 11 am Tuesday 16 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Mawgan Porth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mawgan Porth sea temperature is
11.9° C
(Which is slightly warmer than usual)How big are the waves at Mawgan Porth today?
The current surf forecast for Mawgan Porth at 6PM is: 2.5m 14s primary swell from a West-northwest direction (forecast issued at 11:00am December 16). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 8ft (2.5m) | 15s |
| Afternoon (16 Dec) | 8ft (2.5m) | 14s |
| Evening (16 Dec) | 7.5ft (2.3m) | 14s |
Table - waves today at Mawgan Porth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 9 PM | 0 AM | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 9 | 11 | 12 | 11 | 12 | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 17 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 2679 | 2643 | 2606 | 2376 | 2125 | 2038 | 1814 | 2062 | 1034 | 1060 | 3254 | 2336 | 3721 | 2744 | 15034 | 18870 | 17749 | 15520 | 14306 | 13271 | 12937 | 12235 | 11375 | 10587 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross- on | on | cross | cross- off | cross- off | cross | on | on | on | on | on | cross- on |
High Tide / height (m) | 2:47PM 5.14 | 3:11AM 5.27 | 3:32PM 5.32 | 3:53AM 5.49 | 4:12PM 5.50 | 4:31AM 5.69 | ||||||||||||||||||
Low Tide / height (m) | 8:45AM 1.73 | 9:08PM 1.59 | 9:31AM 1.53 | 9:50PM 1.41 | 10:12AM 1.32 | 10:29PM 1.24 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | 8:14 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - | 8:15 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:15 | - | - | - | - | - | - | - | 4:15 | - | - | - | - | - | - | - | 4:15 | - | - | - | - | - |
 | |  |  | |  | |  | |  | |  | | | | | |  | |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 3 | 4 | 5 | 3 | 1 | - | - | 2 | 16 | 13 | 1 | - | - | - | - |
| Temp. °C | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 9 | 10 | 9 | 10 | 11 | 12 | 11 | 10 | 10 | 10 | 12 | 10 | 10 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 4 | 5 | 6 | 6 | 6 | 4 | 2 | 2 | 2 | -1 | 0 | 1 | 3 | 8 | 7 | 7 | 6 | 1 | 2 | 0 | 2 | 1 | 2 | 2 |
- 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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