Rio das Ostras Sea Conditions and Tide Table

Rio das Ostras 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 04:56 AM and sunset is at 06:27 PM.

Days 1–3 Weather Summary

Heavy rain (total 50mm), heaviest during Wed morning. Very warm air temperatures (max 34°C on Tue afternoon, min 20°C on Wed night). Winds increasing (calm on Mon morning, fresh winds from the WSW by Wed morning).

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Fri afternoon. Warm air temperatures (max 28°C on Sat morning, min 20°C on Thu night). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 30°C on Tue morning, min 21°C on Sun night). Mainly fresh winds.

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Fri afternoon. Warm (max 32°C on Thu morning, min 22°C on Wed night). Wind will be generally light.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
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
11:41AM0.97m
00:20AM1.04m
12:19PM1.00m
1:04AM1.09m
12:54PM1.03m
1:42AM1.14m
1:28PM1.06m
2:18AM1.17m
2:00PM1.09m
2:52AM1.18m
2:31PM1.12m
3:25AM1.18m
3:04PM1.15m
3:58AM1.17m
3:37PM1.16m
4:33AM1.15m
4:14PM1.16m
5:12AM1.11m
4:53PM1.14m
5:55AM1.07m
5:38PM1.10m
6:46AM1.02m
6:32PM1.05m
Low Tide
6:00PM0.33m
6:30AM0.40m
6:41PM0.25m
7:12AM0.38m
7:19PM0.17m
7:50AM0.36m
7:55PM0.11m
8:26AM0.35m
8:32PM0.07m
9:00AM0.35m
9:09PM0.05m
9:35AM0.36m
9:47PM0.05m
10:10AM0.37m
10:27PM0.07m
10:48AM0.40m
11:09PM0.11m
11:30AM0.43m
11:56PM0.16m
12:19PM0.47m
00:48AM0.22m
1:16PM0.50m
1:50AM0.28m
Wave
height (m) 
direction
period (s) 
0.9
E
7
1
E
7
1.2
E
7
1.3
E
7
1.1
E
7
1
E
7
1.1
E
7
1.9
S
7
1.8
S
8
1.6
SSE
8
1.4
SSE
8
1.2
SSE
7
1
S
10
1
S
10
0.9
S
9
1
SSE
9
1.3
E
6
1
E
6
0.8
ESE
7
1.1
E
4
0.8
ESE
5
0.9
ESE
6
1.2
E
5
0.9
ESE
6
1
E
7
1.3
E
5
1.1
E
7
1
E
7
1.4
E
5
1.1
E
7
1
E
7
1
E
7
0.9
E
7
0.8
E
7
0.8
E
7
0.7
ESE
7
rain showers
thunderstorm
rain showers
part cloud
thunderstorm
thunderstorm
heavy rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
thunderstorm
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
rain shwrs
risk tstorm
rain shwrs
some clouds
risk tstorm
risk tstorm
heavy rain
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
rain shwrs
some clouds
some clouds
risk tstorm
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
risk tstorm
clear
 km/h
0
NE
10
E
15
NE
15
NNE
15
NE
5
WNW
20
SSW
25
SW
10
SW
10
SW
15
SSE
5
NNW
10
NE
15
ENE
10
NNE
15
NNE
20
ENE
15
NE
20
NE
25
E
10
NE
20
NE
30
E
15
NNE
20
NE
30
ENE
20
NE
15
NE
25
ENE
15
NE
10
NE
15
E
10
NNE
5
SSE
10
ESE
10
NNE
 mm 
1
5
1
1
17
25
1
1
2
max°C
29
26
24
32
34
24
23
22
22
25
23
21
23
24
22
28
27
22
28
27
23
28
26
23
30
29
23
31
31
24
32
30
25
29
28
24
Moonrise
1:33
2:07
2:45
3:28
4:15
5:07
6:02
6:59
7:56
8:52
9:47
10:42
Moonset
2:52
3:44
4:39
5:33
6:27
7:18
8:05
8:48
9:27
10:02
10:36
11:10
Sunrise
4:56
4:56
4:58
4:58
4:58
4:58
5:00
5:00
5:01
5:01
5:01
5:01
Sunset
6:27
6:28
6:29
6:29
6:30
6:30
6:30
6:30
6:31
6:31
6:32
6:32
Today's sea temperature in Rio das Ostras is
25.6° C
(Statistics for 15 Dec 1981-2005 – mean: 24.7 max: 26.2 min: 23.4°C)
Issued (local time): 2 am Monday 15 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest