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Surf Forecasts:
Fort Le Marchant surfForecast / Guernsey / UK
48hr Weather and Surf, issued 12 am Monday 18 May 2026 BSTForecast update in hr min s Forecast update imminent
Fort Le Marchant surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Fort Le Marchant sea temperature is
12.4° C
(Which is normal for this time of year)Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Sun night. Very mild (max 16°C on Wed afternoon, min 10°C on Sun night). Winds decreasing (strong winds from the S on Mon night, light winds from the WSW by Wed afternoon). | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
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 | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
W 12 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | S 5 | SW 7 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 9 | W 9 | W 9 | W 10 | W 14 | W 13 | W 13 | W 13 | W 13 | |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | |
High Tide | 8:10AM8.45m | 8:31PM8.52m | 8:57AM8.25m | 9:17PM8.28m | 9:46AM7.85m | |||||||||||||||||||
Low Tide | 2:03AM-0.01m | 2:24PM0.20m | 2:50AM0.05m | 3:11PM0.45m | 3:39AM0.32m | 4:00PM0.85m | ||||||||||||||||||
 | |  |  | | | | | | |  | |  | | |  |  | | | | | | | | |
 | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:50 | — | — | — | — | — | — | — | 8:52 | — | — | — | — | — | — | — | 8:52 | — |
1 | 3 | — | 1 | — | — | — | 1 | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 10 | 11 | 11 | 11 | 11 | 13 | 12 | 12 | 12 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 15 | 15 | 16 | 16 |
5 | 4 | 4 | 5 | 5 | 5 | 8 | 6 | 4 | 3 | 8 | 7 | 5 | 5 | 5 | 6 | 6 | 7 | 6 | 7 | 11 | 12 | 13 | 14 | |
Swell 1 Height (m) Direction Period (s) | — | — | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 6 | W 7 | — | — | W 15 | W 15 | W 15 | W 14 | W 17 | W 16 | W 14 | W 14 | W 13 | W 13 | W 13 | W 13 |
 kJ | — | — | 650 | 615 | 517 | 358 | 382 | 275 | 50 | 56 | — | — | 4 | 4 | 4 | 4 | 52 | 129 | 585 | 2651 | 2031 | 1629 | 1325 | 1178 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 11 | W 11 | — | — | — | — | — | W 14 | W 13 | W 14 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 110 | 82 | — | — | — | — | — | 4 | 3 | 34 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 12 | W 12 | — | — | — | SSW 4 | SSW 4 | SSW 4 | S 4 | S 5 | SW 7 | WSW 8 | WSW 8 | WSW 8 | W 8 | W 9 | W 9 | W 9 | W 10 | — | — | — | — | — |
| kJ | 647 | 636 | — | — | — | 11 | 12 | 14 | 50 | 115 | 331 | 432 | 510 | 588 | 647 | 694 | 726 | 848 | 980 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 206 | 102 | 76 | 101 | 103 | 70 | 48 | 70 | 454 | 454 | 210 | 557 | 677 | 575 | 395 | 122 | 204 | 122 | 122 | 122 | 101 | 37 | 35 | 6 |
Best forecast wave conditions in Guernsey | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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