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 — and sunset is at —.

Days 1–4 Weather Summary

Heavy rain (total 20mm), heaviest during Sun afternoon. Cool air temperatures (max 12°C on Sun afternoon, min 7°C on Sun night). Mainly severe gales.

Days 5–7 Weather Summary

Moderate rain (total 14mm), heaviest on Wed afternoon. Low air temperatures (max 9°C on Mon night, min 6°C on Tue morning). Mainly near gales.

Days 8–10 Weather Summary

Moderate rain (total 14mm), heaviest on Thu night. Mild temperatures (max 7°C on Thu night, min 5°C on Sat morning). Winds decreasing (near gales from the WNW on Thu night, moderate winds from the N by Sat afternoon).

Days 11–13 Weather Summary

Light rain (total 8mm), mostly falling on Mon morning. Freeze-thaw conditions (max 6°C on Sun night, min 0°C on Wed night). Winds increasing (light winds from the W on Mon night, strong winds from the NE by Tue morning).

Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wed
24
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
Wave Height Map
High Tide
7:14PM2.50m
8:04AM3.21m
8:44PM2.43m
8:47AM3.24m
10:02PM2.48m
9:25AM3.27m
11:04PM2.59m
10:02AM3.30m
11:52PM2.70m
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
Low Tide
1:12AM1.44m
2:55PM1.46m
2:06AM1.66m
3:49PM1.26m
3:01AM1.82m
4:33PM1.06m
3:53AM1.94m
5:12PM0.89m
4:40AM2.00m
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
Wave
height (m) 
direction
period (s) 
3
SW
13
3
SW
12
2.5
SW
11
5.5
SW
10
4.5
SW
11
6
SSW
10
5.5
SSW
12
4.5
SSW
11
4.5
SSW
11
4.5
SW
11
5
SW
11
4.5
WSW
11
4.5
WSW
10
4.5
WSW
11
4.5
WSW
11
4.5
WSW
11
4
WSW
11
4.5
W
13
4.5
WNW
11
3
WNW
10
3
WNW
10
3
WNW
9
3
WNW
10
2.5
WNW
10
2.4
WNW
9
2.2
WNW
9
2.5
NW
7
3
NW
8
2.3
NW
8
2.5
WNW
8
3
WNW
10
3.5
WNW
11
3.5
WNW
12
2.5
WNW
11
1.9
WNW
10
1.9
WNW
9
light rain
part cloud
part cloud
part cloud
light rain
mod rain
mod rain
cloud
part cloud
rain showers
cloud
light rain
light rain
cloud
rain showers
rain showers
part cloud
light rain
rain showers
rain showers
rain showers
rain showers
rain showers
light rain
part cloud
rain showers
part cloud
cloud
rain showers
part cloud
light rain
rain showers
cloud
rain showers
part cloud
cloud
light rain
some clouds
some clouds
some clouds
light rain
mod rain
mod rain
cloudy
some clouds
rain shwrs
cloudy
light rain
light rain
cloudy
rain shwrs
rain shwrs
some clouds
light rain
rain shwrs
rain shwrs
rain shwrs
rain shwrs
rain shwrs
light rain
some clouds
rain shwrs
some clouds
cloudy
rain shwrs
some clouds
light rain
rain shwrs
cloudy
rain shwrs
some clouds
cloudy
 km/h
30
SSW
20
SW
30
S
65
SW
50
S
85
S
20
WNW
45
WSW
45
WSW
45
S
45
W
45
W
55
W
35
SW
45
SW
45
WSW
45
WNW
50
WNW
45
NW
35
WNW
40
W
40
WNW
35
NNW
30
N
30
NNW
30
NW
45
NNW
35
NW
40
W
35
NW
20
WNW
30
N
40
NNE
30
NNW
20
NNE
30
NE
 mm 
3
2
6
9
1
1
4
3
3
2
4
2
2
2
1
2
1
2
4
1
1
max°C
10
9
10
11
10
12
8
8
8
9
6
7
7
7
7
7
7
7
7
6
6
6
6
5
5
5
5
6
6
6
5
5
4
4
2
2
Moonrise
2:19
3:29
4:39
5:49
6:59
8:06
9:06
9:56
10:34
11:03
11:25
11:42
Moonset
1:30
1:43
1:59
2:19
2:46
3:21
4:07
5:06
6:14
7:28
8:43
Sunrise
8:38
8:40
8:41
8:41
8:41
8:42
8:44
8:44
8:45
8:45
8:45
8:45
Sunset
4:51
4:51
4:51
4:51
4:51
4:52
4:52
4:52
4:52
4:53
4:53
4:54
Today's sea temperature in Union Seamount is
9.7° C
(Statistics for 12 Dec 1981-2005 – mean: 9.1 max: 10.8 min: 7.5°C)
Issued (local time): 9 pm Friday 12 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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