Grand Mere surfForecast / Saint Barthélemy / Saint Barthélemy

information circle48hr Weather and Surf, issued 7 am Friday 05 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)


How big are the waves at Grand Mere today?

The current surf forecast for Grand Mere at 2PM is: 1.1m 6s primary swell from a East direction and 0.4m 8s secondary swell from a Southeast direction (forecast issued at 07:00am September 05). An open ocean swell of 0.3m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (AST) & DateWave HeightWave Period
Morning (05 Sep)3.5ft (1.1m)5s
Afternoon (05 Sep)3.5ft (1.1m)6s
Evening (05 Sep)4ft (1.2m)7s

Table - waves today at Grand Mere. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Friday
05
Saturday
06
Sunday
07
Mon
08
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
0
0
0
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 (?)
1
E
1.1
E
1.1
E
1.1
E
1.1
E
1.2
E
1.3
E
1.3
E
1.2
E
1.2
E
1.1
E
0.9
ENE
0.8
ENE
0.8
ENE
0.9
ENE
0.9
ENE
1
E
1.1
E
1.2
E
1.1
E
1.1
E
1.2
E
1.2
E
1.3
E
Period(s) (?)855677787777777777777777
Wave
Graph
(?)Metric surfscale
Energy (?)150829510613816018318615515513013410692100115118132152138148175175197
Wind
(km/h)
25
ESE
30
ESE
25
ESE
25
ESE
30
E
30
E
30
E
25
E
25
E
25
E
20
E
20
E
20
E
25
E
25
E
25
E
25
E
30
E
30
ESE
25
ESE
25
ESE
30
E
25
E
25
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrosscross-
off
cross-
off
crosscrosscrosscrosscrosscrosscrosscrosscrosscross
High Tide
/ height (m)
2:27AM
0.46
6:11PM
0.49
3:47AM
0.47
6:23PM
0.48
5:02AM
0.48
6:34PM
0.46
Low Tide
/ height (m)
11:06AM
0.02
11:42PM
0.39
11:46AM
0.05
12:09AM
0.33
12:26PM
0.11
12:45AM
0.24
Friday
05
Saturday
06
Sunday
07
Mon
08
Sunrise-5:56-------5:56-------5:56------
Sunset----6:22-------6:21-------6:20---
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
part cloud
clear
clear
thunderstorm
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
Rain (mm)
12------11---1--11------
Temp. °C282828282928282828282828282828272728282828282828
Feels °C (?)292828282928272828292929292828272728282828272728
  • 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 Still cross-shore at Grand Mere (light winds from the ESE at Gustavia wx 4 km from Grand Mere). 1.0m 7s swell from the E to make surfable waves.

    Grand Mere
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1 h 6 min ago

13 km/h
ESE
Cross-Shore
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