Union Seamount Sea Conditions and Tide Table

Union Seamount 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 08:41 AM and sunset is at 04:51 PM.

Days 1–3 Weather Summary

Moderate rain (total 15mm), heaviest on Wed morning. Low air temperatures (max 8°C on Wed morning, min 5°C on Wed night). Winds decreasing (near gales from the WSW on Wed morning, moderate winds from the W by Fri morning).

Days 4–6 Weather Summary

Moderate rain (total 13mm), heaviest on Sat night. Low air temperatures (max 7°C on Sat morning, min 4°C on Sun night). Winds decreasing (near gales from the W on Sat night, moderate winds from the WNW by Mon night).

Days 7–9 Weather Summary

Light rain (total 7mm), mostly falling on Tue afternoon. Mild temperatures (max 7°C on Tue night, min 3°C on Wed afternoon). Mainly near gales.

Days 10–12 Weather Summary

Heavy rain (total 26mm), heaviest during Sat morning. Mild temperatures (max 9°C on Fri night, min 3°C on Sat morning). Winds increasing (moderate winds from the SW on Fri morning, severe gales from the S by Fri night).

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
10:37AM3.33m
00:31AM2.80m
11:13AM3.37m
1:07AM2.88m
11:49AM3.41m
1:40AM2.93m
12:25PM3.44m
2:14AM2.96m
1:02PM3.44m
2:48AM2.98m
1:41PM3.41m
3:23AM3.00m
2:22PM3.34m
3:59AM3.02m
3:06PM3.22m
4:37AM3.07m
3:55PM3.06m
5:18AM3.13m
4:53PM2.87m
6:01AM3.20m
6:04PM2.69m
6:48AM3.29m
7:30PM2.57m
Low Tide
5:47PM0.74m
5:24AM2.02m
6:22PM0.62m
6:03AM2.01m
6:56PM0.53m
6:39AM1.99m
7:30PM0.48m
7:16AM1.96m
8:05PM0.47m
7:53AM1.93m
8:40PM0.51m
8:34AM1.90m
9:16PM0.59m
9:21AM1.86m
9:54PM0.72m
10:14AM1.81m
10:33PM0.89m
11:16AM1.71m
11:16PM1.10m
12:25PM1.55m
00:04AM1.33m
1:36PM1.33m
00:59AM1.56m
Wave
height (m) 
direction
period (s) 
5
WSW
10
4.5
WSW
11
4.5
WSW
11
4
W
11
3.5
W
11
3.5
WNW
12
3
W
10
3
W
9
3
W
9
3
W
9
2.5
W
10
3
WSW
9
3
W
9
3
W
10
3
W
10
2.5
W
10
2.5
W
12
2.5
WNW
11
2.2
WNW
10
3
WSW
8
3.5
W
12
5
WNW
12
4.5
NE
9
4
NW
10
3
NW
10
2.4
WNW
10
1.7
WNW
9
1.5
WNW
9
1.6
NW
8
2.5
SSW
7
6
SSW
10
5
WSW
11
5.5
W
13
6.5
WNW
15
6.5
WNW
14
6
WNW
13
rain showers
light rain
light rain
part cloud
rain showers
rain showers
rain showers
light rain
light rain
cloud
light rain
rain showers
rain showers
light rain
light rain
cloud
cloud
part cloud
cloud
light rain
rain showers
clear
rain showers
part cloud
part cloud
cloud
part cloud
cloud
cloud
light rain
heavy rain
light rain
light rain
light rain
rain showers
cloud
rain shwrs
light rain
light rain
some clouds
rain shwrs
rain shwrs
rain shwrs
light rain
light rain
cloudy
light rain
rain shwrs
rain shwrs
light rain
light rain
cloudy
cloudy
some clouds
cloudy
light rain
rain shwrs
clear
rain shwrs
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
light rain
heavy rain
light rain
light rain
light rain
rain shwrs
cloudy
 km/h
55
WSW
45
SW
45
WSW
30
WNW
40
W
45
W
25
W
40
W
40
WSW
25
WSW
30
SW
45
W
35
W
35
WNW
25
NNE
25
N
30
NNW
20
WNW
35
SSW
45
WNW
25
NE
60
NNE
55
N
45
N
35
NNW
30
NNW
15
WNW
20
SW
35
SSW
60
S
75
S
50
WSW
50
SW
45
W
55
NW
45
WNW
 mm 
1
1
3
1
3
1
1
4
2
6
1
2
2
5
1
1
3
13
1
4
4
1
max°C
8
8
8
6
6
7
6
7
7
7
6
6
5
5
5
5
5
5
5
5
7
6
4
5
6
7
7
7
8
9
9
5
5
6
6
7
Moonrise
6:59
8:06
9:06
9:56
10:34
11:03
11:25
11:42
11:57
12:11
12:25
12:40
Moonset
2:46
3:21
4:07
5:06
6:14
7:28
8:43
9:59
11:15
12:32
1:51
Sunrise
8:41
8:42
8:44
8:44
8:45
8:45
8:45
8:45
8:45
8:47
8:47
8:47
Sunset
4:51
4:52
4:52
4:52
4:52
4:53
4:53
4:54
4:54
4:55
4:57
4:58
Today's sea temperature in Union Seamount is
9.7° C
(Statistics for 17 Dec 1981-2005 – mean: 9.0 max: 10.8 min: 7.5°C)
Issued (local time): 9 am Wednesday 17 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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