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Surf Forecasts:
Mawgan Porth surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 6 am Tuesday 12 May 2026 BSTForecast 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
12.6° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Mawgan Porth today?
The current surf forecast for Mawgan Porth at 3PM is: 0.2m 18s primary swell from a West-southwest direction and 0.2m 8s secondary swell from a South-southwest direction, 0.8m 4s secondary swell from a West-northwest direction (forecast issued at 06:00am May 12). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 1.5ft (0.5m) | 5s |
| Afternoon (12 May) | 0.5ft (0.2m) | 18s |
| Evening (12 May) | 4ft (1.2m) | 5s |
Table - waves today at Mawgan Porth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 8mm), mostly falling on Wed morning. Very mild (max 12°C on Tue afternoon, min 9°C on Thu morning). Winds increasing (light winds from the NW on Tue morning, strong winds from the NW by Wed morning). | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | Fri 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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 9 | SW 8 | NW 5 | NW 4 | WSW 18 | WNW 5 | WNW 5 | WNW 5 | WNW 6 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | W 8 | W 7 | |
19 | 18 | 13 | 12 | 35 | 69 | 72 | 95 | 299 | 705 | 947 | 935 | 904 | 815 | 1047 | 982 | 861 | 859 | 817 | 679 | 480 | 296 | 212 | 150 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | |
High Tide | 1:52AM5.04m | 2:28PM5.03m | 2:51AM5.42m | 3:22PM5.49m | 3:43AM5.87m | 4:10PM5.96m | ||||||||||||||||||
Low Tide | 8:22AM1.66m | 8:45PM1.64m | 9:17AM1.25m | 9:38PM1.22m | 10:06AM0.83m | 10:27PM0.78m | ||||||||||||||||||
 |  |  |  | | |  | |  | |  | | | |  |  | |  | | | | | | | |
 | 5:37 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | 5:33 |
 | — | — | — | — | — | 8:55 | — | — | — | — | — | — | — | 8:57 | — | — | — | — | — | — | — | 8:59 | — | 9:00 |
— | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | 1 | 1 | — | 1 | 1 | 1 | 1 | — | — | — | |
Temp °C | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 11 | 10 | 11 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 10 | 10 |
9 | 8 | 7 | 7 | 6 | 6 | 6 | 4 | 0 | 1 | -1 | 1 | 2 | 2 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 3 | 3 | 3 | |
Swell 1 Height (m) Direction Period (s) | N 6 | N 5 | SW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | WNW 12 | SSW 8 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 15 | SW 15 | W 9 | W 8 | W 7 |
 kJ | 9 | 9 | 11 | 7 | 7 | 6 | 6 | 14 | 6 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 22 | 21 | 21 | 8 | 73 | 212 | 150 |
Swell 2 Height (m) Direction Period (s) | WNW 4 | WNW 4 | W 9 | W 8 | WSW 18 | WSW 18 | WNW 12 | SSW 8 | SW 17 | SW 8 | SW 8 | SW 8 | SW 7 | S 7 | — | — | — | — | — | — | — | SW 15 | SW 14 | SW 14 |
| kJ | 3 | 3 | 6 | 6 | 30 | 30 | 15 | 6 | 12 | 2 | 2 | 2 | 2 | 1 | — | — | — | — | — | — | — | 8 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | SW 9 | SW 8 | SW 18 | SW 18 | NW 12 | WNW 12 | WSW 18 | WSW 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 19 | 18 | 13 | 12 | 6 | 15 | 30 | 30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NW 5 | NW 4 | WNW 4 | WNW 5 | WNW 5 | WNW 5 | WNW 6 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | N 6 | N 6 |
| kJ | — | — | 12 | 8 | 35 | 69 | 72 | 95 | 299 | 705 | 947 | 935 | 904 | 815 | 1047 | 982 | 861 | 859 | 817 | 679 | 480 | 296 | 112 | 78 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 49 | 49 | 481 | 479 | 526 | 557 | 525 | 501 | 526 | 506 | 765 | 912 | 909 | 1132 | 330 | 330 | 93 | 93 | 250 | 252 | 382 | 299 | 69 | 131 |
Best forecast wave conditions in North Cornwall | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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