Fort Le Marchant Surf Forecast

/ Guernsey (8 surf breaks) /

UK (471 surf breaks)

Surf Forecasts:

Fort Le Marchant surfForecast / Guernsey / UK

12 Day Weather and Surf, issued 12 am Wednesday 20 Aug 2025 BST

Forecast 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 17.6° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Fort Le Marchant this week:

The most powerful waves expected at Fort Le Marchant in the next 12 days are 1.9m 7s and forecast to arrive on Wednesday (Aug 20) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 17s period and expected on Tuesday (Aug 26) at 1PM.

Wave Type	Time (BST) & Date	Wave Height & Period
Next good surf (1 star+)	-	-
Best Surf	-	-
Most Powerful	7AM (Wed 20th Aug)	6ft (1.9m) 7s

Table - best surf conditions forecast for Fort Le Marchant over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 2mm), mostly falling on Tue night. Very mild (max 19°C on Tue night, min 15°C on Wed night). Winds decreasing (strong winds from the NE on Tue night, light winds from the N by Thu night).										Days 3-6 Weather Summary Mostly dry. Warm (max 25°C on Sun afternoon, min 18°C on Fri night). Wind will be generally light.
		Wednesday 20			Thursday 21			Friday 22			Saturday 23			Sunday 24			Monday 25			Tue 26
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NE	NE	NE	NE	NE	NE	NE	ENE	ENE	W	W	W	W	W	W	E	W	W	W	W	W
Period(s) (?)	4	7	6	6	5	5	6	5	5	11	10	9	9	8	8	3	9	9	20	19	17
Wave Graph (?)
Energy (?)	36	267	106	26	45	32	22	6	2	0	0	0	0	0	0	6	0	0	0	0	0
Wind (km/h)	NE	NE	NE	N	NE	NNE	N	SSW	W	W	SSW	NNW	ESE	SE	ENE	NNE	WSW	WNW	W	WSW	W
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	on	cross- on	cross- on	on	cross- off	cross	glass	off	glass	cross- off	cross- off	cross	cross- on	cross- off	cross- on	cross	cross- off	cross
High Tide / height (m)		4:59AM 6.17	5:28PM 6.60		6:02AM 6.66	6:22PM 7.15		6:50AM 7.16		7:06PM 7.65	7:30AM 7.57		7:44PM 8.01	8:06AM 7.84		8:19PM 8.20	8:39AM 7.96		8:51PM 8.21	9:10AM 7.93
Low Tide / height (m)	10:46PM 2.24	11:20AM 2.22		11:57PM 1.72	12:19PM 1.70		12:48AM 1.17		1:05PM 1.21	1:30AM 0.73		1:44PM 0.83	2:06AM 0.43		2:18PM 0.60	2:38AM 0.30		2:50PM 0.52	3:09AM 0.35		3:21PM 0.60

		Wednesday 20			Thursday 21			Friday 22			Saturday 23			Sunday 24			Monday 25			Tue 26
Sunrise	-	6:07	-	-	6:07	-	-	6:09	-	-	6:11	-	-	6:13	-	-	6:13	-	-	6:16	-
Sunset	-	-	8:17	-	-	8:15	-	-	8:14	-	-	8:12	-	-	8:09	-	-	8:07	-	-	8:06

Rain (mm)	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	19	17	18	18	15	17	17	16	18	19	18	19	20	20	25	23	19	19	18	18	17
Feels °C (?)	16	12	16	16	11	14	14	14	16	18	16	18	16	16	19	20	18	16	17	16	14

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Guernsey

Wind Update The wind is still cross-on at Fort Le Marchant (near gales from the ENE at Sun Yachts 5 km from Fort Le Marchant). A 0.8m local chop from the NE
1 hour 23 minutes ago Fort Le Marchant

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1 h 23 min ago

57 km/h

ENE

Cross-On

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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 12 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.