Onset Sea Conditions and Tide Table

Onset 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 — and sunset is at 07:24 PM.

Days 1–4 Weather Summary

Light rain (total 5mm), mostly falling on Mon afternoon. Cool air temperatures (max 12°C on Sun morning, min 5°C on Sun night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Wed afternoon, min 3°C on Mon night). Wind will be generally light.

Days 8–10 Weather Summary

Some drizzle, heaviest during Sun afternoon. Very mild (max 11°C on Thu night, min 5°C on Thu night). Wind will be generally light.

Days 11–13 Weather Summary

Light rain (total 4mm), mostly falling on Tue morning. Very mild (max 13°C on Mon afternoon, min 3°C on Tue afternoon). Winds decreasing (fresh winds from the NNE on Tue morning, calm by Wed night).

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sun
3
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
High Tide
9:18PM1.44m
9:46AM1.22m
10:06PM1.46m
10:36AM1.21m
10:57PM1.43m
11:29AM1.17m
11:52PM1.37m
12:26PM1.13m
00:51AM1.29m
1:26PM1.09m
1:53AM1.21m
2:26PM1.08m
2:56AM1.14m
3:29PM1.09m
4:00AM1.09m
4:32PM1.11m
5:05AM1.06m
5:34PM1.16m
6:05AM1.06m
6:31PM1.21m
6:58AM1.06m
7:21PM1.26m
7:45AM1.07m
8:05PM1.29m
8:27AM1.08m
8:46PM1.30m
9:07AM1.06m
Low Tide
4:03AM-0.16m
3:51PM-0.19m
4:50AM-0.14m
4:36PM-0.16m
5:40AM-0.09m
5:24PM-0.11m
6:33AM-0.01m
6:14PM-0.03m
7:38AM0.07m
7:12PM0.07m
9:33AM0.13m
8:25PM0.15m
10:54AM0.13m
10:42PM0.18m
11:50AM0.12m
00:03AM0.16m
12:33PM0.10m
00:55AM0.12m
1:05PM0.09m
1:37AM0.10m
1:28PM0.07m
2:11AM0.07m
1:51PM0.05m
2:41AM0.05m
2:20PM0.04m
3:13AM0.03m
2:55PM0.03m
Wave
height (m) 
direction
period (s) 
0.3
S
7
0.8
ENE
4
0.6
E
4
0.4
E
7
0.7
SE
4
0.6
NW
3
0.5
W
3
0.3
E
7
0.2
ESE
7
0.6
N
3
0.3
N
3
0.2
E
7
0.4
SSW
3
0.6
SSW
4
0.2
E
7
0.3
E
7
0.3
E
7
0.2
E
7
0.4
NW
3
0.5
NW
3
0.5
NE
3
0.2
ENE
3
0.3
NE
3
0.3
ENE
3
0.4
SW
3
0.5
NE
3
0.9
ENE
4
0.6
ENE
4
0.4
N
3
0.3
E
12
0.4
SW
2
0.8
N
4
1.3
NE
5
0.8
NE
4
0.8
NE
4
0.4
ENE
8
0.5
WSW
3
0.2
ENE
9
0.2
ENE
9
0.4
SW
3
0.1
E
7
0.4
SW
2
0.5
SW
3
0.4
SW
3
0.5
SW
3
0.5
SSW
3
0.9
SW
4
part cloud
cloud
cloud
part cloud
part cloud
light rain
clear
light rain
rain showers
clear
clear
clear
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
light rain
light rain
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
light rain
part cloud
some clouds
cloudy
cloudy
some clouds
some clouds
light rain
clear
light rain
rain shwrs
clear
clear
clear
cloudy
cloudy
some clouds
clear
clear
clear
clear
clear
clear
some clouds
clear
clear
some clouds
some clouds
rain shwrs
some clouds
some clouds
some clouds
some clouds
light rain
light rain
some clouds
some clouds
clear
some clouds
clear
clear
clear
clear
clear
some clouds
cloudy
cloudy
light rain
some clouds
 km/h
10
N
20
ENE
10
ENE
5
S
20
S
15
NW
15
W
10
WNW
15
WNW
20
N
15
NNE
10
SSE
20
SSW
15
WSW
10
NNE
5
N
20
NNW
15
NNW
15
WNW
20
NNW
15
NE
15
N
15
NNE
10
ESE
10
WSW
20
NE
25
NE
15
NNW
15
N
10
S
10
W
35
NNE
30
NNE
15
NNE
25
NNE
5
NE
15
WSW
10
NNW
15
SSW
10
W
5
W
20
SW
10
SW
15
SW
20
SSW
25
SSW
25
SW
 mm 
2
1
2
1
2
2
2
max°C
10
8
8
8
12
11
8
6
10
8
5
7
6
8
14
10
10
13
11
9
11
8
8
10
8
8
6
6
11
13
11
9
4
6
6
10
9
14
16
13
18
19
14
16
16
12
15
Moonrise
6:12
6:50
7:38
8:38
9:48
11:04
12:19
1:31
2:40
3:46
4:51
5:55
7:00
8:05
9:09
Moonset
9:27
10:48
12:02
1:04
1:53
2:31
3:00
3:25
3:46
4:06
4:26
4:47
5:10
5:37
6:10
Sunrise
5:58
5:56
5:54
5:54
5:52
5:50
5:48
5:48
5:46
5:45
5:43
5:41
5:41
5:39
5:37
5:37
Sunset
7:24
7:25
7:27
7:28
7:29
7:30
7:30
7:31
7:32
7:34
7:36
7:37
7:37
7:38
7:39
7:40
Today's sea temperature in Onset is
7.1° C
(Statistics for 17 Apr 1981-2005 – mean: 6.1 max: 7.6 min: 4.7°C)
Issued (local time): 7 pm Friday 17 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest