San Juan Surf Break

San Juan 48 hour detailed Surf Forecast

Lat Long: 29.12° N 13.57° W

Issued: 6 pm 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's San Juan sea temperature is
20.6° C

Normal for this time of year

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 (18 Jun):

  • Afternoon surf: Afternoon surf (18 Jun, local time) - 2.5ft (0.8m), 10s period with NW swell.
  • Evening surf: Evening surf (18 Jun, local time) - 3.5ft (1.0m), 7s period with N swell.

The current surf forecast for San Juan at 10PM is: 0.7m 10s primary swell from a Northwest direction and 0.1m 10s secondary swell from a North direction, 1.0m 7s secondary swell from a North direction (forecast issued at 06:00pm June 18). The wind direction is predicted to be cross-onshore.

Time (WEST) & DateWave HeightWave Period
Morning (18 Jun)--
Afternoon (18 Jun)2.5ft (0.8m)10s
Evening (18 Jun)3.5ft (1.0m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 21°C on Fri afternoon, min 19°C on Thu night). Wind will be generally light.

Thu
18
Friday
19
Saturday
20
Sun
21
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
1 AM
4 AM
7 AM
10 AM
1 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
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
NW
10
1
N
7
1
N
7
1
N
7
1
N
7
0.9
N
7
0.6
NW
10
0.9
N
6
0.9
N
6
0.9
NNE
7
0.9
N
7
0.9
NNE
7
0.9
NNE
6
0.8
NNE
6
0.8
NNE
6
0.8
NNE
6
0.7
NNE
6
0.7
NNE
6
0.7
NNE
6
0.8
NNE
6
0.8
NNE
6
0.6
WNW
8
0.6
WNW
8
0.6
WNW
8
Wave Graph
Metric surfscale
Energy kJ
124
98
96
89
86
70
74
66
68
73
70
73
68
51
50
48
34
33
32
45
45
45
45
43
Wind (km/h)
25
N
25
N
20
N
20
N
20
N
20
N
20
N
20
N
20
N
20
N
20
N
20
NNE
20
N
20
N
20
NNE
20
NNE
20
NNE
20
NNE
20
NNE
15
NNE
15
NNE
15
NE
15
NNE
20
NNE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
High Tide
5:00PM2.49m
5:35AM2.11m
5:52PM2.37m
6:29AM1.99m
6:47PM2.23m
7:26AM1.89m
Low Tide
11:22PM0.16m
11:28AM0.38m
00:16AM0.30m
12:21PM0.50m
1:13AM0.43m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:54
8:54
8:55
8:55
 mm
Temp °C
20
20
19
19
19
19
20
20
21
20
19
19
19
19
20
20
21
20
20
19
19
19
20
21
Feels °C
18
18
18
18
18
17
18
18
19
18
18
18
18
18
19
18
19
18
19
18
19
19
19
20
Swell 1
Height (m)
Direction
Period (s)
0.8
NW
10
0.7
NW
10
0.7
NW
10
0.6
NW
10
0.6
NW
10
0.6
NW
9
0.6
NW
10
0.6
NW
9
0.5
NW
9
0.4
NW
9
0.4
NW
9
0.4
NW
9
0.4
WNW
8
0.5
NW
9
0.5
NW
9
0.5
NW
8
0.5
NW
8
0.5
NW
8
0.5
NW
8
0.6
WNW
8
0.6
WNW
8
0.6
WNW
8
0.6
WNW
8
0.6
WNW
8
Energy kJ
124
98
96
77
61
54
74
52
41
29
29
29
28
38
36
35
33
33
32
45
45
45
45
43
Swell 2
Height (m)
Direction
Period (s)
0.1
N
10
0.1
N
10
0.1
N
10
0.1
N
9
0.4
NW
9
0.2
WNW
10
0.1
N
9
0.2
WNW
10
0.2
WNW
9
0.3
WNW
9
0.3
WNW
9
0.4
NW
9
0.3
NW
9
0.1
N
11
0.1
N
11
0.1
N
11
0.1
N
10
0.1
NW
10
0.2
WNW
10
0.1
N
10
0.1
N
13
0.2
N
13
0.2
N
13
0.2
NNW
12
Energy kJ
2
2
2
2
22
10
2
9
9
17
16
20
13
2
2
2
2
4
10
2
4
14
13
15
Swell 3
Height (m)
Direction
Period (s)
0.1
N
9
0.1
N
9
0.1
N
9
0.1
N
9
0.1
N
8
0.1
N
8
0.1
N
8
0.1
N
8
0.2
N
8
0.1
N
11
0.1
W
11
0.1
N
8
0.1
N
8
0.1
N
8
0.1
N
15
0.1
N
14
0.1
NW
10
0.1
NW
10
0.1
N
10
0.1
NW
10
Energy kJ
2
2
2
1
1
1
1
1
5
3
2
1
1
1
4
4
4
4
2
4
Wind waves
Height (m)
Direction
Period (s)
1
N
6
1
N
7
1
N
7
1
N
7
1
N
7
0.9
N
7
0.9
N
6
0.9
N
6
0.9
N
6
0.9
NNE
7
0.9
N
7
0.9
NNE
7
0.9
NNE
6
0.8
NNE
6
0.8
NNE
6
0.8
NNE
6
0.7
NNE
6
0.7
NNE
6
0.7
NNE
6
0.8
NNE
6
0.8
NNE
6
0.7
NNE
6
0.7
NNE
6
0.7
NNE
6
Energy kJ
83
88
89
89
86
70
68
66
68
73
70
73
68
51
50
48
34
31
31
36
40
29
28
27
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
330
331
331
334
331
334
38
149
149
541
38
38
38
38
38
38
514
514
276
38
38
38
38
38
Best forecast wave conditions in Lanzarote
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Spain (Africa)
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
6
5
5
5
6
6
6
4
4
4
4
4
5
5
4
5
9
5
8
9
9
9
8
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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