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Surf Forecasts:

Grand Mere surfForecast / Saint Barthélemy / Saint Barthélemy

information circle12 Day Weather and Surf, issued 7 pm Wednesday 03 Sep 2025 AST
Forecast update in hr  min  s Forecast update imminent
Grand Mere surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Grand Mere sea temperature is
29.6° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Grand Mere this week:

The most powerful waves expected at Grand Mere in the next 12 days are 1.5m 12s and forecast to arrive on Wednesday (Sep 10) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Thursday (Sep 04) at 11PM.

Wave TypeTime (AST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5PM (Wed 10th Sep)5ft (1.5m) 12s

Table - best surf conditions forecast for Grand Mere over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 6mm), mostly falling on Thu night. Warm (max 29°C on Fri afternoon, min 28°C on Wed night). Mainly fresh winds.

Days 3-6 Weather Summary Light rain (total 9mm), mostly falling on Mon night. Warm (max 29°C on Tue afternoon, min 28°C on Sat night). Mainly fresh winds.

Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wed
10
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
See all maps
Wave Height (m) & direction (?)
0.9
E
0.8
E
0.8
E
1
E
1.2
E
1.2
E
1.3
E
1.2
E
1.1
E
1.1
E
1.1
E
1.1
E
1.3
E
1.3
E
1.3
E
1.4
E
1.5
E
1.5
E
1.5
E
1
E
1.5
E
Period(s) (?)77756777777787778881312
Wave
Graph
(?)Metric surfscale
Energy (?)101869572119149181155147124137157186198197222280291373549643
Wind
(km/h)
25
E
20
E
25
E
30
E
25
ESE
25
E
30
E
25
E
20
E
25
E
25
ESE
25
ESE
30
E
30
ESE
25
E
25
E
30
ESE
25
E
30
E
25
E
25
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscrosscrosscrosscrosscrosscrosscross-
on		crosscrosscross-
on		crosscrosscrosscrosscrosscrosscross-
off
High Tide
/ height (m)
6:00PM
0.51
2:27AM
0.46
6:11PM
0.49
3:47AM
0.47
6:23PM
0.48
5:02AM
0.48
6:34PM
0.46
6:16AM
0.49
6:44PM
0.45
7:34AM
0.49
6:50PM
0.45
9:00AM
0.50
6:49PM
0.46
Low Tide
/ height (m)
10:26AM
0.01
11:36PM
0.44
11:06AM
0.02
11:42PM
0.39
11:46AM
0.05
12:09AM
0.33
12:26PM
0.11
12:45AM
0.24
1:08PM
0.18
1:26AM
0.16
1:50PM
0.27
2:11AM
0.08
2:34PM
0.37
Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wed
10
Sunrise-5:56--5:56--5:56--5:56--5:58--5:58--5:58-
Sunset--6:22--6:22--6:21--6:20--6:19--6:17--6:17
clear
clear
clear
thunderstorm
thunderstorm
clear
clear
thunderstorm
clear
clear
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
clear
clear
thunderstorm
part cloud
clear
Rain (mm)
---22--2--2-21-4--1--
Temp. °C282828282829282828282828282828282829292829
Feels °C (?)292928282830282829292828282628282830292830
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Saint Barthélemy

  1. weather stationWind Update Continuing clean conditions at Grand Mere (light winds from the E at Gustavia wx 4 km from Grand Mere). 0.8m 8s swell from the E to make surfable waves.

    1 hour 7 minutes ago Grand Mere
Expand
<
>
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1 h 7 min ago

6 km/h
E
Clean
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Grand Mere 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.

View detailed surf forecast for Grand Mere at:
surf-forecast.com

Information about the Grand Mere Surf forecast

The above surf forecast table for Grand Mere provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Grand Mere can be found by selecting the local surf guide option on the grey menu. Our Grand Mere 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 (Grand Mere) 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 Grand Mere 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 Saint Barthélemy? If you are looking for accommodation near Grand Mere, camping, hotels and holiday cottages in Saint Barthélemy, consider staying in Gustavia which is 4 km (2 miles) away. Other places in and around Saint Barthélemy where you can find information about places to rent, and car hire include Philipsburg which is 33 km (20 miles) away, Marigot, The Valley and Basseterre.

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