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Surf Forecasts:
Porthmeor surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 11 am Tuesday 09 Dec 2025 GMTForecast update in hr min s Forecast update imminent
Porthmeor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porthmeor sea temperature is
12.3° C
(Which is slightly warmer than usual)How big are the waves at Porthmeor today?
The current surf forecast for Porthmeor at 6PM is: 6.0m 14s primary swell from a West-southwest direction and 3.5m 15s secondary swell from a West direction (forecast issued at 11:00am December 09). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Dec) | 18ft (5.5m) | 12s |
| Afternoon (09 Dec) | 23ft (7.0m) | 14s |
| Evening (09 Dec) | 15ft (4.5m) | 14s |
Table - waves today at Porthmeor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| 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) (?) | 12 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 8132 | 13460 | 18951 | 15290 | 8826 | 5091 | 7376 | 5681 | 4567 | 3671 | 1578 | 1272 | 2644 | 5054 | 3762 | 2266 | 1783 | 4358 | 5875 | 9518 | 9317 | 7823 | 5874 | 8049 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | off | off | off | off | off | off | off | off | cross- on | cross- on | cross- on |
High Tide / height (m) | 7:46AM 5.77 | 8:14PM 5.23 | 8:39AM 5.41 | 9:09PM 4.86 | 9:35AM 5.05 | 10:09PM 4.56 | ||||||||||||||||||
Low Tide / height (m) | 2:23PM 0.65 | 2:40AM 0.94 | 3:17PM 0.97 | 3:34AM 1.26 | 4:14PM 1.27 | 4:33AM 1.53 | ||||||||||||||||||
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| Sunrise | 8:07 | - | - | - | - | - | - | - | 8:08 | - | - | - | - | - | - | - | 8:10 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:19 | - | - | - | - | - | - | - | 4:19 | - | - | - | - | - | - | - | 4:19 | - | - | - | - | - |
 | |  |  | | | | |  | | | | | | | | | | |  | |  | | | |
Rain (mm) | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 4 | 2 | - |
| Temp. °C | 14 | 14 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 10 | 9 | 10 |
| Feels °C (?) | 3 | 2 | 2 | 4 | 5 | 5 | 6 | 4 | 5 | 5 | 6 | 7 | 6 | 5 | 4 | 4 | 3 | 4 | 4 | 4 | 5 | 5 | 2 | 5 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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