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Surf Forecasts:

Guana Bay surfForecast / Saint Martin / Netherlands Antilles

information circle48hr Weather and Surf, issued 7 pm Friday 19 Dec 2025 AST
Forecast update in hr  min  s Forecast update imminent
Guana Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Guana Bay sea temperature is
28.0° C
 (Which is 1.1°C warmer than normal for this time of year)
Nearby Cam: 9km away, Famous plane beach ✈️ - SXM Airport - Maho Beach Sint Maarten

How big are the waves at Guana Bay today?

The current surf forecast for Guana Bay at 10PM is: 1.5m 10s primary swell from a East direction and 0.3m 15s secondary swell from a North direction (forecast issued at 07:00pm December 19). An open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (AST) & DateWave HeightWave Period
Morning (19 Dec)--
Afternoon (19 Dec)5.5ft (1.7m)10s
Evening (19 Dec)5ft (1.6m)10s

Table - waves today at Guana Bay. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Friday
19
Saturday
20
Sunday
21
Monday
22
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 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
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.6
E
1.6
E
1.5
E
1.5
E
1.5
E
1.5
E
1.5
E
1.5
E
1.5
E
1.5
E
1.6
ENE
1.6
ENE
1.7
E
1.7
ENE
1.7
ENE
1.7
E
1.7
E
1.7
E
1.7
E
1.7
E
1.7
E
1.6
E
1.6
E
1.5
E
Period(s) (?)1010101010101099999999998999999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)480500431414408408400397397405471461495495495484445415455465476422408359
Wind
(km/h)
25
ENE
25
ENE
25
ENE
25
E
25
E
25
E
25
E
25
E
30
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
E
30
E
30
E
30
E
25
ENE
25
ENE
25
ENE
25
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononononononononcross-
on		cross-
on		onononononononononononon
High Tide
/ height (m)
9:17AM
0.36
9:55AM
0.37
10:30AM
0.37
Low Tide
/ height (m)
12:37AM
0.01
1:17AM
0.01
1:57AM
0.03
Friday
19
Saturday
20
Sunday
21
Monday
22
Sunrise-----6:37-------6:37-------6:37--
Sunset5:39-------5:40-------5:40-------
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
Rain (mm)
-1-------------111------
Temp. °C262626262626262626262626262626262626262626262626
Feels °C (?)262525252424262524242424242424242524252525252526
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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 Guana Bay 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 Guana Bay at:
surf-forecast.com

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