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Sandy Mouth Surf Forecast
/ Cornwall (North) (59 surf breaks) /
Surf Forecasts:
Sandy Mouth surfForecast / Cornwall (North) / UK
48hr Weather and Surf, issued 6 am Thursday 18 Sep 2025 BST
How big are the waves at Sandy Mouth today?
The current surf forecast for Sandy Mouth at 7AM is: 2.2m 12s primary swell from a West direction (forecast issued at 06:00am September 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 7ft (2.1m) | 12s |
| Afternoon (18 Sep) | 6ft (1.9m) | 11s |
| Evening (18 Sep) | 5.5ft (1.7m) | 10s |
Table - waves today at Sandy Mouth. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1684 | 1347 | 1103 | 898 | 862 | 736 | 586 | 484 | 470 | 541 | 490 | 431 | 377 | 319 | 273 | 220 | 171 | 164 | 160 | 130 | 143 | 101 | 134 | 157 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross- off | cross- off | cross | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on |
High Tide / height (m) | 4:02AM 5.79 | 4:29PM 6.25 | 4:58AM 6.29 | 5:17PM 6.77 | 5:40AM 6.76 | 5:57PM 7.20 | ||||||||||||||||||
Low Tide / height (m) | 10:23AM 1.95 | 10:55PM 1.53 | 11:13AM 1.45 | 11:38PM 1.08 | 11:52AM 1.02 | 12:14AM 0.72 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | - | 6:56 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | - | 7:00 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:25 | - | - | - | - | - | - | - | 7:23 | - | - | - | - | - | - | - | 7:22 | - | - |
 |  |  | | | |  | | | | |  | | | | | | | | |  | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | 1 |
| Temp. °C | 17 | 17 | 18 | 20 | 19 | 18 | 17 | 16 | 16 | 15 | 17 | 19 | 19 | 17 | 15 | 15 | 15 | 14 | 16 | 18 | 18 | 16 | 13 | 13 |
| Feels °C (?) | 13 | 12 | 14 | 16 | 15 | 15 | 15 | 14 | 14 | 13 | 15 | 16 | 17 | 16 | 14 | 14 | 14 | 13 | 13 | 14 | 13 | 9 | 3 | 4 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Cornwall (North)
The wind is still cross-on at Sandy Mouth (moderate winds from the SW at Chivenor Royal Air Force 39 km from Sandy Mouth). 2.6m 12s groundswell from the WSW with a 2.1m 12s groundswell from the W. 2 swells combining so expect closeout sets.
39 km away, 1 h 17 min ago
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