San Juan Sea Conditions and Tide Table

San Juan Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 06:54 AM and sunset is at 05:54 PM.

Days 1–3 Weather Summary

Some drizzle, heaviest during Sat afternoon. Warm air temperatures (max 25°C on Fri morning, min 21°C on Sun night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 27°C on Tue afternoon, min 21°C on Mon morning). Wind will be generally light.

Days 7–9 Weather Summary

Some drizzle, heaviest during Sat night. Warm (max 27°C on Thu afternoon, min 23°C on Thu night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Tue afternoon. Warm (max 27°C on Sun morning, min 22°C on Tue night). Wind will be generally light.

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
1:21PM0.45m
2:08AM0.35m
1:58PM0.41m
3:18AM0.40m
2:39PM0.36m
4:25AM0.46m
3:25PM0.32m
5:29AM0.51m
4:17PM0.28m
6:30AM0.54m
5:15PM0.25m
7:30AM0.57m
6:16PM0.24m
8:26AM0.59m
7:18PM0.24m
9:20AM0.59m
8:20PM0.26m
10:11AM0.58m
9:22PM0.27m
10:59AM0.56m
10:25PM0.30m
11:42AM0.52m
11:29PM0.31m
Low Tide
6:39AM0.09m
8:03PM0.08m
7:50AM0.13m
8:38PM0.03m
9:10AM0.16m
9:19PM-0.02m
10:34AM0.17m
10:06PM-0.07m
11:55AM0.16m
10:57PM-0.12m
1:07PM0.15m
11:52PM-0.15m
2:12PM0.14m
00:50AM-0.17m
3:08PM0.13m
1:48AM-0.18m
3:59PM0.12m
2:45AM-0.16m
4:46PM0.11m
3:41AM-0.12m
5:30PM0.10m
6:12PM0.09m
Wave
height (m) 
direction
period (s) 
1.2
NNE
9
1.3
N
14
1.8
N
12
1.7
N
12
1.6
N
12
1.4
NNE
12
1.4
N
12
1.5
N
12
1.4
N
11
1.3
NNE
14
1.3
NNE
13
1.3
NNE
12
1.4
NNE
12
1.5
N
12
1.5
NNE
12
1.3
NNE
11
1.2
NNE
11
1
N
10
0.9
N
11
0.9
NNW
10
0.9
NNW
9
0.9
N
10
1
N
9
0.8
NNW
9
0.8
NNW
9
0.8
NNW
8
0.8
N
8
0.9
N
10
0.9
N
10
0.8
N
9
0.8
N
8
0.8
N
8
0.9
N
9
0.9
NNE
8
0.8
NNE
8
0.7
NNE
8
part cloud
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
rain showers
clear
some clouds
clear
clear
clear
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
cloudy
some clouds
cloudy
some clouds
clear
clear
clear
clear
clear
rain shwrs
clear
clear
clear
clear
clear
clear
clear
rain shwrs
clear
 km/h
15
NNE
10
NE
5
SE
10
ENE
15
ENE
5
ESE
10
NNE
15
N
5
ENE
10
ENE
15
ENE
10
SE
5
ESE
20
ESE
10
SE
15
ESE
15
ESE
15
SE
20
E
20
E
10
SE
15
E
20
E
10
SE
20
E
20
ENE
10
ESE
20
E
20
E
10
E
15
E
20
ESE
5
S
5
NNE
10
NNW
5
WSW
 mm 
1
1
2
max°C
25
25
24
25
25
24
24
25
23
24
24
23
25
27
23
25
27
25
26
27
24
26
27
24
27
27
25
27
27
25
27
27
25
26
26
24
Moonrise
11:32
12:08
12:45
1:27
2:14
3:08
4:10
5:17
6:26
7:32
8:34
9:32
Moonset
11:49
12:44
1:42
2:44
3:50
4:59
6:08
7:11
8:08
8:57
9:39
Sunrise
6:54
6:54
6:54
6:54
6:54
6:56
6:56
6:56
6:56
6:56
6:56
6:58
Sunset
5:54
5:55
5:55
5:57
5:57
5:58
5:59
5:59
6:00
6:00
6:00
6:01
Today's sea temperature in San Juan is
28.0° C
(Statistics for 26 Dec 1981-2005 – mean: 26.8 max: 27.6 min: 25.9°C)
Issued (local time): 1 am Friday 26 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest