Mcmaster Island Sea Conditions and Tide Table

Mcmaster 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 08:03 AM and sunset is at 04:51 PM.

Days 1–3 Weather Summary

A dusting of new snow. Air temperatures will be below freezing (max -3°C on Thu afternoon, min -12°C on Fri night). Winds increasing (calm on Thu morning, strong winds from the NNW by Thu night).

Days 4–6 Weather Summary

Light rain (total 8mm), mostly falling on Mon night. Icy conditions (max 7°C on Mon night, min -9°C on Tue night). Winds increasing (light winds from the S on Mon morning, strong winds from the W by Tue morning).

Days 7–9 Weather Summary

A dusting of new snow. Temperatures will be below freezing (max -1°C on Wed night, min -18°C on Fri morning). Winds decreasing (fresh winds from the NW on Thu morning, calm by Fri night).

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Sat morning. Becoming milder with moderate rain (total 13mm) heaviest on Sat afternoon. Freeze-thaw conditions (max 5°C on Sat afternoon, min -16°C on Tue morning). Winds decreasing (strong winds from the SSW on Sat afternoon, calm by Mon morning).

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
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
3:27PM6.42m
3:56AM6.38m
4:15PM6.39m
4:46AM6.45m
5:09PM6.35m
5:40AM6.53m
6:08PM6.32m
6:39AM6.65m
7:10PM6.33m
7:40AM6.80m
8:13PM6.40m
8:41AM7.01m
9:13PM6.51m
9:39AM7.20m
10:11PM6.68m
10:35AM7.39m
11:07PM6.84m
11:29AM7.50m
11:59PM6.96m
12:20PM7.51m
00:50AM7.00m
1:10PM7.40m
1:40AM6.97m
Low Tide
9:24AM1.48m
9:48PM1.14m
10:11AM1.45m
10:36PM1.16m
11:03AM1.40m
11:29PM1.17m
12:00PM1.31m
00:26AM1.16m
1:03PM1.15m
1:27AM1.11m
2:08PM0.89m
2:29AM1.00m
3:10PM0.57m
3:30AM0.85m
4:08PM0.25m
4:29AM0.64m
5:03PM-0.01m
5:24AM0.45m
5:55PM-0.17m
6:16AM0.34m
6:45PM-0.19m
7:07AM0.33m
7:34PM-0.07m
Wave
height (m) 
direction
period (s) 
0.1
S
1
0.2
N
2
0.8
N
4
0.7
N
4
0.5
N
3
0.3
N
3
0.3
N
2
0.3
N
3
0.6
NNW
3
0.8
NNW
4
0.6
NW
3
0.1
NW
2
0.1
S
1
0.6
SE
3
0.4
WSW
3
0.7
W
3
0.7
W
3
0.6
W
3
0.5
W
3
0.3
WSW
3
0.4
SW
2
0.4
WNW
3
0.4
NW
3
0.2
WNW
2
0.2
WNW
2
0.1
W
2
0
W
2
0.4
S
2
0.9
S
4
0.4
W
3
0.4
NW
3
0.2
NNW
2
0.1
N
2
0
E
1
0.1
NE
2
0.4
N
3
light snow
snow showers
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
light rain
rain showers
clear
cloud
part cloud
clear
part cloud
part cloud
light snow
clear
clear
clear
part cloud
part cloud
light snow
mod rain
rain showers
clear
clear
cloud
light snow
light snow
snow showers
light snow
snow shwrs
some clouds
clear
clear
clear
clear
clear
some clouds
clear
clear
some clouds
cloudy
light rain
rain shwrs
clear
cloudy
some clouds
clear
some clouds
some clouds
light snow
clear
clear
clear
some clouds
some clouds
light snow
mod rain
rain shwrs
clear
clear
cloudy
light snow
light snow
snow shwrs
 km/h
5
S
20
NNW
40
NNW
30
NNW
25
NNW
20
NNW
20
NNW
25
NNW
35
NW
40
NW
30
NW
10
NW
15
SSE
35
SE
30
W
40
W
40
W
35
W
25
W
25
WSW
25
WSW
30
NW
25
NW
20
WNW
15
WNW
15
W
5
W
30
S
45
SSW
25
NW
20
NNW
15
NNW
10
N
10
E
15
NE
25
N
 mm 
2
6
10
3
max°C
-5
-3
-4
-11
-9
-10
-10
-7
-7
-4
-1
-3
1
5
7
-6
-8
-9
-7
-4
-1
-3
-9
-14
-17
-13
-10
0
5
5
-7
-6
-8
-6
-4
-6
Moonrise
11:25
11:43
12:01
12:21
12:44
1:13
1:51
2:42
3:49
5:07
6:29
7:50
Moonset
10:42
11:54
1:07
2:25
3:46
5:10
6:31
7:43
8:41
9:23
9:55
Sunrise
8:03
8:04
8:04
8:04
8:04
8:04
8:06
8:06
8:06
8:06
8:06
8:04
Sunset
4:51
4:51
4:52
4:52
4:53
4:53
4:54
4:55
4:57
4:58
4:59
5:00
Today's sea temperature in Mcmaster Island is
6.3° C
(Statistics for 25 Dec 1981-2005 – mean: 5.9 max: 7.1 min: 4.7°C)
Issued (local time): 7 am Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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