San Juan Surf Break

Lat Long: 29.12° N 13.57° W

San Juan 48 hour detailed Surf Forecast

Issued: 12 am 20 Oct 2026 (local time)

Forecast update in  hr  min

Today's San Juan sea temperature is
23.8°C
1.5° 

San Juan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at San Juan today (20 Oct):

  • Morning surf: Morning surf (20 Oct, local time) - 5ft (1.6m), 10s period with N swell.
  • Afternoon surf: Afternoon surf (20 Oct, local time) - 3.5ft (1.1m), 14s period with NW swell.
  • Evening surf: Evening surf (20 Oct, local time) - 3.5ft (1.1m), 14s period with NW swell.

The current surf forecast for San Juan at 6AM is: 1.6m 10s primary swell from a North direction and 0.8m 16s secondary swell from a Northwest direction (forecast issued at 12:00am October 20). The wind direction is predicted to be glassy and the swell rating is 3.

Time (WEST) & DateWave HeightWave Period
Morning (20 Oct)5ft (1.6m)10s
Afternoon (20 Oct)3.5ft (1.1m)14s
Evening (20 Oct)3.5ft (1.1m)14s

Table - waves today at San Juan. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 7mm), mostly falling on Wed night. Warm (max 22°C on Mon night, min 19°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the ENE by Wed morning).

Tuesday
20
Wednesday
21
Thursday
22
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
2
3
2
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
N
11
1.7
N
11
1.6
N
10
1.5
N
10
1.1
NW
14
1.1
NW
14
1.1
NW
14
1.1
NW
13
1.1
NW
13
1.1
NW
13
1.1
NW
13
1.1
NW
13
1
NW
13
0.9
NW
13
0.9
NW
13
0.9
NW
13
0.8
NW
12
0.8
NW
12
0.7
NW
12
0.7
NW
12
0.6
NW
12
0.9
NNW
14
1.1
NNW
13
1.2
NNW
12
Wave Graph
Metric surfscale
Energy kJ
730
639
556
470
459
447
428
392
437
380
380
386
336
282
277
238
181
175
144
144
114
312
396
420
Wind (km/h)
5
NNE
5
NE
5
NNE
10
NE
10
E
15
ENE
15
ENE
20
ENE
20
ENE
25
NE
25
ENE
30
ENE
25
ENE
20
ENE
20
ENE
25
ENE
25
ENE
20
E
15
ENE
10
ENE
10
E
10
ENE
15
NE
20
NNE
Wind State
on
glassy
on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
on
on
High Tide
10:03AM1.74m
10:48PM1.67m
10:59AM1.89m
11:33PM1.85m
11:42AM2.06m
Low Tide
3:37AM0.95m
4:36PM0.77m
4:44AM0.81m
5:22PM0.60m
5:30AM0.65m
6:00PM0.42m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
7:58
—
—
—
—
—
—
—
7:58
—
—
—
—
—
—
—
7:58
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
7:19
—
—
—
—
—
—
—
7:17
—
—
—
—
—
—
—
7:16
—
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
3
3
1
—
—
—
—
—
—
Temp °C
21
21
21
21
22
22
22
22
21
21
21
21
22
22
21
20
19
20
20
20
21
22
22
21
Feels °C
22
22
22
21
22
22
21
20
19
18
19
18
20
21
19
18
17
18
19
20
21
23
22
21
  • 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
How to use the Wavefinder 

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 San Juan 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.


Nearest locationNearest