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Mounts Bay (Penzance) surfForecast / Cornwall (South) / UK
48hr Weather and Surf, issued 11 am Saturday 21 Mar 2026 GMTForecast update in hr min s Forecast update imminent
Mounts Bay (Penzance) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mounts Bay (Penzance) sea temperature is
10.7° C
(Which is slightly warmer than usual)How big are the waves at Mounts Bay (Penzance) today?
The current surf forecast for Mounts Bay (Penzance) at 2PM is: 1.1m 12s primary swell from a West direction and 0.4m 4s secondary swell from a East-southeast direction (forecast issued at 11:00am March 21). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 3.5ft (1.0m) | 12s |
| Afternoon (21 Mar) | 4ft (1.2m) | 12s |
| Evening (21 Mar) | 4ft (1.2m) | 12s |
Table - waves today at Mounts Bay (Penzance). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 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 | 12 | 12 | 12 | 12 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 314 | 359 | 411 | 284 | 454 | 484 | 490 | 529 | 529 | 506 | 490 | 395 | 377 | 365 | 377 | 475 | 475 | 537 | 497 | 503 | 404 | 384 | 302 | 242 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | glass | glass | glass | off | off | off | off | cross- off | cross- off | off | off | off | cross- off | cross- off | cross | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 6:14PM 5.58 | 6:34AM 5.65 | 6:52PM 5.47 | 7:14AM 5.43 | 7:34PM 5.26 | |||||||||||||||||||
Low Tide / height (m) | 12:43PM 0.56 | 1:01AM 0.63 | 1:21PM 0.71 | 1:40AM 0.81 | 1:59PM 0.97 | 2:21AM 1.09 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | 6:22 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - |
 | | | |  | | | | |  |  | | |  | | | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 9 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Feels °C (?) | 7 | 9 | 10 | 9 | 8 | 8 | 8 | 5 | 6 | 5 | 6 | 5 | 6 | 6 | 6 | 6 | 7 | 8 | 8 | 8 | 7 | 6 | 5 | 4 |
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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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