Fort Le Marchant surfForecast / Guernsey / UK

information circle12 Day Weather and Surf, issued 11 pm Saturday 20 Dec 2025 GMT
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
12.9° C
(Which is 1.6°C warmer than 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 3.0m 8s and forecast to arrive on Thursday (Dec 25) at 6PM. 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 16s period and expected on Sunday (Dec 21) at 9AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 6PM (Thu 25th Dec)10ft (3.0m) 8s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 6mm), mostly falling on Sun night. Very mild (max 12°C on Sun night, min 8°C on Tue afternoon). Winds decreasing (strong winds from the SSE on Sat night, calm by Mon afternoon).

Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Thu night. Mild temperatures (max 8°C on Tue night, min 2°C on Thu night). Winds decreasing (near gales from the NE on Thu afternoon, fresh winds from the ENE by Fri morning).

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Sat
27
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
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
Wave Height (m) & direction (?)
2
W
2.5
W
2.4
W
2
W
0.4
ENE
0.3
ENE
0.4
ENE
1.1
NE
1.4
NE
1.8
NE
2
NE
2.3
NE
2.3
ENE
2.4
NE
2.5
NE
1.6
NE
1.4
NE
1.1
NE
1.4
NE
1.9
NE
2.2
NE
Period(s) (?)1216151565355667777765567
Wave
Graph
(?)Metric surfscale
Energy kJ (?)000015534911522832648158464065828513365119275436
Wind
(km/h)
30
S
25
ESE
35
E
35
E
20
SE
5
S
10
ENE
35
NE
35
NNE
45
NE
50
ENE
55
ENE
50
ENE
50
ENE
55
NE
30
E
30
ENE
30
NE
45
NE
60
ENE
60
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
crosscrosscross-
off
glasscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
crosscrosscross-
on
cross-
on
cross-
on
cross
High Tide
/ height (m)
7:04AM
7.41
7:24PM
7.22
7:39AM
7.50
7:59PM
7.23
8:14AM
7.51
8:35PM
7.18
8:50AM
7.44
9:12PM
7.07
9:28AM
7.31
9:53PM
6.92
10:10AM
7.12
10:40PM
6.75
10:58AM
6.89
Low Tide
/ height (m)
1:01AM
1.33
1:23PM
1.12
1:36AM
1.26
1:58PM
1.07
2:10AM
1.26
2:34PM
1.09
2:45AM
1.33
3:10PM
1.16
3:22AM
1.46
3:49PM
1.28
4:03AM
1.63
4:32PM
1.43
4:50AM
1.82
5:22PM
1.61
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Sat
27
Sunrise-8:03--8:03--8:03--8:03--8:04--8:04--8:04-
Sunset--4:12--4:12--4:13--4:13--4:14--4:15--4:15
light rain
light rain
cloud
light rain
cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
light rain
part cloud
cloud
part cloud
clear
clear
Rain (mm)
12-3-----------3-----
Temp. °C11101112111112109887666455687
Feels °C (?)344669821-2-3-5-5-6-7-5-3-3-3-6-7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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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.

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