Round Island Sea Conditions and Tide Table

Round Island 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 06:05 AM and sunset is at 06:51 PM.

Days 1–3 Weather Summary

Moderate rain (total 18mm), heaviest on Mon morning. Warm air temperatures (max 29°C on Sun morning, min 28°C on Sun morning). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 19mm), heaviest on Wed night. Warm air temperatures (max 29°C on Wed morning, min 28°C on Wed morning). Wind will be generally light.

Days 7–9 Weather Summary

Heavy rain (total 20mm), heaviest during Sun morning. Warm (max 29°C on Sat morning, min 26°C on Sun night). Mainly fresh winds.

Days 10–12 Weather Summary

Moderate rain (total 17mm), heaviest on Thu morning. Warm (max 29°C on Tue morning, min 28°C on Wed morning). Wind will be generally light.

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
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
12:48PM3.14m
12:59PM3.12m
1:10PM3.04m
1:01PM2.90m
12:19PM2.75m
5:53PM2.66m
11:30AM2.69m
7:22PM2.51m
11:06AM2.73m
8:33PM2.37m
11:04AM2.86m
9:41PM2.22m
11:16AM3.02m
10:51PM2.07m
11:36AM3.18m
00:10AM1.93m
12:02PM3.32m
1:47AM1.83m
12:29PM3.44m
3:57AM1.82m
Low Tide
1:18AM0.56m
1:49AM0.53m
2:17AM0.55m
2:41AM0.62m
4:03PM2.64m
3:05AM0.71m
4:12PM2.38m
3:27AM0.82m
4:43PM2.09m
3:51AM0.96m
5:20PM1.79m
4:14AM1.12m
6:02PM1.51m
4:37AM1.28m
6:48PM1.24m
4:59AM1.46m
7:38PM1.02m
8:29PM0.81m
Wave
height (m) 
direction
period (s) 
0
W
3
0.1
N
1
0
W
3
0.1
N
1
0.2
WNW
2
0.1
W
3
0.1
W
4
0
W
4
0.1
S
2
0.1
S
2
0.1
N
2
0.1
W
3
0
W
3
0
W
4
0.2
E
2
0.1
E
2
0.1
S
2
0
W
4
0.1
W
3
0.3
WSW
3
0.2
WSW
3
0.2
W
2
0.2
W
2
0.1
SW
3
0.3
W
3
0.5
W
3
0.4
WSW
3
0.3
W
3
0.5
W
3
0.3
WSW
3
0.2
W
3
0.2
WNW
2
0.3
WNW
3
0.2
W
3
0.2
WNW
2
0.1
W
4
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
rain showers
thunderstorm
part cloud
rain showers
thunderstorm
part cloud
rain showers
thunderstorm
part cloud
rain showers
thunderstorm
part cloud
rain showers
thunderstorm
part cloud
part cloud
mod rain
thunderstorm
light rain
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
rain showers
thunderstorm
cloud
rain showers
risk tstorm
some clouds
risk tstorm
risk tstorm
some clouds
rain shwrs
risk tstorm
some clouds
rain shwrs
risk tstorm
some clouds
rain shwrs
risk tstorm
some clouds
rain shwrs
risk tstorm
some clouds
rain shwrs
risk tstorm
some clouds
some clouds
mod rain
risk tstorm
light rain
risk tstorm
risk tstorm
some clouds
risk tstorm
some clouds
some clouds
risk tstorm
risk tstorm
rain shwrs
risk tstorm
cloudy
rain shwrs
 km/h
5
NE
10
N
10
NNE
10
NNW
15
W
5
ENE
5
NE
5
NNW
10
SE
5
E
10
WNW
10
S
5
NE
5
SSE
10
E
10
ENE
10
NW
5
SSE
10
NW
25
SW
10
W
15
WSW
15
WNW
15
WSW
20
W
30
WSW
20
WSW
20
WNW
25
W
20
WSW
10
WSW
20
WNW
20
WNW
15
NW
15
WNW
5
N
 mm 
4
2
5
1
2
4
3
4
4
3
1
4
2
8
5
1
3
1
2
3
1
2
4
4
max°C
29
29
29
28
28
28
29
29
29
29
29
29
28
29
29
29
29
29
29
29
29
28
28
28
29
29
29
29
29
29
29
29
29
28
28
28
Moonrise
6:46
7:40
8:33
9:24
10:15
11:04
11:53
12:44
1:37
2:35
3:38
4:44
Moonset
7:57
8:45
9:30
10:13
10:53
11:33
12:12
12:54
1:39
2:29
3:26
Sunrise
6:05
6:05
6:07
6:07
6:07
6:07
6:09
6:09
6:09
6:11
6:11
6:11
Sunset
6:51
6:51
6:52
6:52
6:52
6:52
6:53
6:53
6:53
6:54
6:54
6:55
Today's sea temperature in Round Island is
29.9° C
(Statistics for 21 Dec 1981-2005 – mean: 29.3 max: 30.6 min: 28.5°C)
Issued (local time): 3 am Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest