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 04:58 AM and sunset is at 06:29 PM.

Days 1–3 Weather Summary

Heavy rain (total 21mm), heaviest during Wed afternoon. Warm air temperatures (max 24°C on Wed morning, min 19°C on Thu night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Sat afternoon. Warm air temperatures (max 28°C on Sun morning, min 21°C on Sat night). Mainly fresh winds.

Days 7–9 Weather Summary

Mostly dry. Warm (max 33°C on Wed morning, min 22°C on Tue night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 7mm), mostly falling on Sun afternoon. Warm (max 31°C on Sun morning, min 21°C on Fri night). Wind will be generally light.

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
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
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
7:48AM0.97m
7:43PM0.99m
9:05AM0.93m
9:21PM0.97m
Low Tide
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
2:24PM0.51m
3:02AM0.34m
3:38PM0.47m
4:21AM0.37m
Wave
height (m) 
direction
period (s) 
1
E
7
1.6
S
6
1.6
SSE
8
1.3
SSE
7
1.2
SSE
7
1.1
SE
7
0.9
S
10
0.9
S
10
0.8
S
9
0.7
SSE
9
0.8
SSE
8
0.8
SSE
8
0.8
SE
7
1.2
E
5
0.8
S
12
0.9
ESE
6
1.3
E
6
0.9
E
6
1
E
6
1.3
E
5
1.2
ESE
6
1.1
E
7
1.4
E
6
1.1
E
7
1
E
7
1.3
E
6
0.9
ESE
7
0.8
E
7
1
E
5
0.8
ESE
7
0.7
ESE
8
1.3
E
5
0.9
E
5
0.9
E
5
1
E
5
0.8
E
6
thunderstorm
light rain
cloud
cloud
light rain
mod rain
light rain
part cloud
rain showers
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
part cloud
risk tstorm
light rain
cloudy
cloudy
light rain
mod rain
light rain
some clouds
rain shwrs
some clouds
risk tstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
rain shwrs
some clouds
 km/h
20
SW
20
WSW
10
WSW
5
SW
5
SE
5
N
5
ENE
10
E
15
NE
10
NE
20
ENE
15
NE
20
NE
30
E
15
NE
20
NE
30
E
15
NE
20
NE
25
ENE
20
NE
15
NE
25
ENE
20
NE
15
ENE
20
E
15
NE
10
ENE
15
E
15
NE
15
ENE
20
E
15
NNE
10
NE
15
E
10
NNE
 mm 
4
3
1
7
5
1
2
7
max°C
24
20
21
22
22
21
21
22
21
26
26
23
28
27
23
28
26
23
31
31
23
33
32
24
32
29
24
29
28
24
29
27
24
31
30
24
Moonrise
2:45
3:28
4:15
5:07
6:02
6:59
7:56
8:52
9:47
10:42
11:38
12:37
Moonset
4:39
5:33
6:27
7:18
8:05
8:48
9:27
10:02
10:36
11:10
11:44
Sunrise
4:58
4:58
4:58
4:58
5:00
5:00
5:01
5:01
5:01
5:01
5:03
5:03
Sunset
6:29
6:29
6:30
6:30
6:30
6:30
6:31
6:31
6:32
6:32
6:32
6:34
Today's sea temperature in Rio das Ostras is
26.1° C
(Statistics for 17 Dec 1981-2005 – mean: 24.8 max: 26.2 min: 23.6°C)
Issued (local time): 2 am Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest