Surf Forecasts:
Fort Le Marchant surf forecast from 20 Aug 2026:
- Most powerful swell: Monday 24 Aug, 10PM (local time) - 6ft (1.8m), 6s period, ENE swell with 241 kJ wave energy.
Best Forecast Surf Conditions for Fort Le Marchant this week:
The most powerful waves expected at Fort Le Marchant in the next 16 days are 1.8m 6s and forecast to arrive on Monday (Aug 24) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 9s period and expected on Thursday (Aug 20) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Mon 24th Aug) | 6ft (1.8m) 6s |
Table - best surf conditions forecast for Fort Le Marchant over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu morning. Very mild (max 18°C on Thu morning, min 15°C on Thu night). Winds decreasing (fresh winds from the W on Thu morning, light winds from the NW by Fri afternoon). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 21°C on Mon afternoon, min 17°C on Sun morning). Winds decreasing (strong winds from the ENE on Mon afternoon, light winds from the E by Tue afternoon). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 8 | W 9 | W 9 | N 4 | NNE 4 | N 4 | ENE 4 | NE 4 | ENE 3 | W 9 | ENE 4 | E 4 | E 6 | ENE 6 | ENE 7 | NE 6 | NE 5 | ENE 4 | E 6 | WSW 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 16 | 9 | 3 | 11 | 19 | 6 | 0 | 16 | 39 | 139 | 121 | 163 | 25 | 9 | 2 | 1 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | on | cross-on | on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | off | cross | cross-off | off | cross-off | cross-off |
High Tide | 12:05PM6.16m | 00:29AM5.79m | 12:59PM5.61m | 1:39AM5.28m | 2:29PM5.27m | 3:29AM5.14m | 4:14PM5.41m | 4:57AM5.47m | 5:22PM5.88m | 5:51AM5.99m | 6:07PM6.46m | 6:30AM6.55m | 6:44PM7.05m | ||||||||
Low Tide | 6:22PM2.46m | 6:45AM2.74m | 7:22PM2.96m | 7:58AM3.17m | 8:59PM3.21m | 9:47AM3.23m | 10:43PM2.98m | 11:12AM2.85m | 11:47PM2.46m | 12:04PM2.32m | 00:29AM1.87m | 12:42PM1.77m | 1:04AM1.31m | ||||||||
 |  |  |  | |  | | | | | | | | | | | |  |  |  | | |
 | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — |
 | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — |
mm | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 2 | 1 | 2 | 15 | 2 |
Temp °C | 18 | 18 | 18 | 15 | 16 | 18 | 16 | 18 | 17 | 19 | 18 | 18 | 19 | 21 | 20 | 19 | 21 | 20 | 18 | 17 | 18 |
Feels °C | 13 | 13 | 13 | 12 | 15 | 15 | 11 | 13 | 12 | 16 | 12 | 12 | 11 | 14 | 14 | 19 | 21 | 16 | 16 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | — | — | — | W 9 | W 9 | W 8 | W 8 | W 10 | W 9 | W 9 | W 9 | WSW 10 | WSW 9 | SW 9 | W 9 | NE 6 | NE 5 | WNW 9 | WNW 9 | WSW 8 | W 8 |
| kJ | — | — | — | 168 | 99 | 64 | 48 | 45 | 25 | 14 | 6 | 19 | 8 | 3 | 2 | 25 | 9 | 16 | 16 | 127 | 105 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | NNE 4 | — | W 11 | — | WNW 6 | — | W 13 | W 6 | — | W 9 | SW 9 | W 8 | S 3 | ENE 4 | E 6 | WNW 9 | W 10 |
| kJ | — | — | — | — | 9 | — | 9 | — | 4 | — | 3 | 1 | — | 2 | 3 | 1 | 1 | 2 | 1 | 27 | 49 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 11 | WNW 10 | W 8 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 10 | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | W 9 | W 9 | N 4 | N 4 | N 4 | ENE 4 | NE 4 | ENE 3 | ESE 4 | ENE 4 | E 4 | E 6 | ENE 6 | ENE 7 | SSE 3 | — | SSW 3 | SW 5 | S 5 | S 3 |
| kJ | 400 | 450 | 440 | 16 | 9 | 3 | 11 | 19 | 6 | 7 | 16 | 39 | 139 | 121 | 163 | 1 | — | 3 | 67 | 34 | 8 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 395 | 122 | 120 | 144 | 50 | 35 | 37 | 209 | 211 | 206 | 213 | 213 | 595 | 102 | 206 | 167 | 186 | 125 | 246 | 103 | 70 |
Best forecast wave conditions in Guernsey | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Fort Le Marchant surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Fort Le Marchant Surf forecast
The above surf forecast table for Fort Le Marchant provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Fort Le Marchant can be found by selecting the local surf guide option on the grey menu. Our Fort Le Marchant surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Fort Le Marchant) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Fort Le Marchant may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Guernsey? If you are looking for accommodation near Fort Le Marchant, camping, hotels and holiday cottages in Guernsey, consider staying in Saint Peter Port which is 7 km (4 miles) away. Other places in and around Guernsey where you can find information about places to rent, and car hire include Guernsey which is 11 km (7 miles) away, Saint Helier, Octeville and Equeurdreville-Hainneville.
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