Rio San Juan Sea Conditions and Tide Table

Rio 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 07:07 AM and sunset is at 06:05 PM.

Days 1–3 Weather Summary

Moderate rain (total 12mm), heaviest on Thu morning. Warm air temperatures (max 27°C on Thu afternoon, min 24°C on Thu morning). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 40mm), heaviest during Sun night. Warm air temperatures (max 27°C on Mon afternoon, min 23°C on Tue night). Wind will be generally light.

Days 7–9 Weather Summary

Heavy rain (total 40mm), heaviest during Wed afternoon. Warm (max 26°C on Fri morning, min 23°C on Wed morning). Wind will be generally light.

Days 10–12 Weather Summary

Moderate rain (total 17mm), heaviest on Sun night. Warm (max 26°C on Sat afternoon, min 21°C on Mon night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
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
7:49AM0.68m
7:28PM0.38m
8:29AM0.69m
8:11PM0.38m
9:10AM0.70m
8:54PM0.39m
9:49AM0.70m
9:37PM0.40m
10:27AM0.70m
10:22PM0.42m
11:04AM0.69m
11:09PM0.45m
11:41AM0.68m
00:00AM0.48m
12:18PM0.65m
00:53AM0.51m
12:58PM0.62m
1:50AM0.55m
1:43PM0.58m
2:49AM0.60m
2:32PM0.53m
3:50AM0.65m
3:27PM0.49m
4:51AM0.71m
Low Tide
2:30PM0.20m
1:17AM0.07m
3:12PM0.19m
1:58AM0.06m
3:53PM0.19m
2:40AM0.07m
4:32PM0.19m
3:22AM0.09m
5:11PM0.19m
5:48PM0.19m
6:23PM0.19m
5:42AM0.18m
6:59PM0.17m
6:40AM0.21m
7:36PM0.15m
7:47AM0.24m
8:16PM0.12m
9:00AM0.24m
9:01PM0.09m
10:14AM0.23m
9:50PM0.05m
Wave
height (m) 
direction
period (s) 
1.3
NNE
10
1.4
NE
10
1.3
NE
9
1.3
NE
9
1.3
NE
8
1.1
NE
8
1.1
NE
8
1
ENE
9
1.3
ENE
11
1.4
NE
12
1.4
NE
11
1.2
NE
11
1.2
NE
10
1.2
NE
10
1.4
NE
10
1.4
NE
9
1.6
NE
7
2
NNE
9
2.1
NNE
9
2.1
NNE
10
2
NNE
10
2
NNE
9
1.8
NE
9
1.6
NE
9
1.6
NE
8
1.3
NE
8
1.6
NNE
8
1.6
NNE
9
1.6
NNE
10
1.4
NNE
10
1.4
NNE
10
1.3
NNE
10
1.3
NNE
9
1.3
NE
6
1
NE
8
0.8
NNE
8
thunderstorm
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
rain showers
rain showers
rain showers
clear
rain showers
rain showers
clear
part cloud
rain showers
rain showers
rain showers
rain showers
clear
clear
risk tstorm
clear
clear
risk tstorm
risk tstorm
clear
clear
clear
risk tstorm
rain shwrs
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
some clouds
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
rain shwrs
rain shwrs
rain shwrs
rain shwrs
clear
rain shwrs
rain shwrs
clear
some clouds
rain shwrs
rain shwrs
rain shwrs
rain shwrs
clear
clear
 km/h
20
SE
25
E
15
SE
15
ESE
20
E
10
SE
15
ESE
15
E
10
E
15
ESE
15
E
10
E
15
E
20
ENE
20
ENE
20
ENE
25
ENE
10
E
15
ENE
15
NE
15
NE
25
NE
20
NE
10
NE
15
NE
15
ENE
20
ENE
15
ENE
15
ENE
10
ENE
15
NNE
15
NNE
15
NE
15
NE
15
NE
5
SE
 mm 
4
2
2
4
2
2
7
4
4
9
3
9
5
7
12
6
2
3
1
4
3
1
1
9
3
max°C
26
27
25
26
27
25
27
27
25
26
26
25
26
27
25
26
26
24
24
24
23
24
25
24
26
26
23
25
26
24
25
25
23
24
25
23
Moonrise
5:57
6:51
7:43
8:32
9:18
9:59
10:37
11:13
11:48
12:23
1:00
1:41
Moonset
4:53
5:44
6:37
7:33
8:29
9:24
10:18
11:12
12:06
1:02
2:01
Sunrise
7:07
7:07
7:09
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:13
7:13
Sunset
6:05
6:05
6:06
6:06
6:07
6:07
6:07
6:07
6:08
6:08
6:09
6:09
Today's sea temperature in Rio San Juan is
28.1° C
(Statistics for 18 Dec 1981-2005 – mean: 27.0 max: 27.8 min: 25.8°C)
Issued (local time): 7 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest