Heard Island Sea Conditions and Tide Table

Heard 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 — and sunset is at 08:31 PM.

Days 1–4 Weather Summary

A dusting of snow turning to light rain (total 8mm) on Wed afternoon. Air temperatures will be slightly above freezing (max 4°C on Wed night, min 2°C on Mon night). Winds decreasing (near gales from the WNW on Mon night, moderate winds from the W by Tue night).

Days 5–7 Weather Summary

Moderate rain (total 14mm), heaviest on Sat afternoon. Low air temperatures (max 5°C on Sun afternoon, min 2°C on Thu night). Mainly strong winds.

Days 8–10 Weather Summary

Light rain (total 8mm) at first, then becoming colder with a dusting of snow on Mon morning. Temperatures will be slightly above freezing (max 4°C on Sun night, min 2°C on Mon morning). Winds decreasing (severe gales from the SW on Mon afternoon, fresh winds from the WSW by Tue morning).

Days 11–13 Weather Summary

Moderate rain (total 15mm), heaviest on Wed night. Temperatures will be slightly above freezing (max 4°C on Wed night, min 2°C on Thu night). Mainly strong winds.

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Sat
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
Wave Height Map
High Tide
00:58AM1.06m
2:33PM1.10m
1:34AM1.09m
3:01PM1.10m
2:14AM1.11m
3:31PM1.11m
2:58AM1.13m
4:03PM1.13m
3:48AM1.13m
4:39PM1.14m
4:47AM1.12m
5:18PM1.16m
5:59AM1.10m
6:04PM1.16m
7:46AM1.09m
7:02PM1.16m
9:47AM1.14m
8:14PM1.17m
11:00AM1.19m
9:29PM1.18m
11:53AM1.23m
10:37PM1.19m
12:37PM1.23m
Low Tide
7:30PM0.67m
7:40AM0.18m
7:58PM0.64m
8:12AM0.19m
8:30PM0.62m
8:47AM0.24m
9:05PM0.61m
9:25AM0.34m
9:47PM0.61m
10:06AM0.47m
10:37PM0.63m
10:54AM0.61m
11:40PM0.63m
11:53AM0.75m
1:03AM0.61m
1:21PM0.86m
2:34AM0.55m
3:08PM0.91m
3:47AM0.45m
4:21PM0.89m
4:45AM0.33m
5:17PM0.83m
5:36AM0.23m
Wave
height (m) 
direction
period (s) 
4.5
W
13
3
W
12
2.5
W
11
2
W
12
1.6
WSW
12
1.8
WSW
12
3.5
W
10
4
W
11
3.5
WSW
12
3
WSW
11
2.2
W
11
2.3
W
10
2
W
10
2
WNW
10
2.5
WNW
10
2.1
WNW
10
1.6
WNW
10
1.6
W
10
3
NNW
8
4
NW
11
6.5
W
13
3.5
WSW
11
2.5
SW
10
2.3
SW
10
2.5
WSW
9
3
WSW
10
2.5
WSW
10
3
WSW
11
2.5
WSW
11
2.4
WSW
11
2.3
WSW
11
2.5
WSW
11
3
WSW
10
3
WSW
12
2.5
WSW
12
2.3
WSW
12
snow showers
part cloud
clear
part cloud
part cloud
light rain
light rain
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
light rain
light rain
light rain
light rain
light rain
rain showers
light snow
light snow
part cloud
part cloud
part cloud
rain showers
part cloud
cloud
light rain
part cloud
part cloud
rain showers
rain showers
rain showers
rain showers
rain showers
cloud
snow shwrs
some clouds
clear
some clouds
some clouds
light rain
light rain
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
light rain
light rain
light rain
light rain
light rain
rain shwrs
light snow
light snow
some clouds
some clouds
some clouds
rain shwrs
some clouds
cloudy
light rain
some clouds
some clouds
rain shwrs
rain shwrs
rain shwrs
rain shwrs
rain shwrs
cloudy
 km/h
50
W
40
WSW
35
WSW
25
W
20
NW
45
NNW
55
W
55
W
40
WSW
30
SW
30
W
35
W
25
W
35
NNW
40
WNW
25
NW
35
ENE
30
N
45
NNW
80
SW
75
SW
50
WSW
35
WSW
35
W
45
W
45
W
35
WNW
40
WNW
40
W
40
W
40
WNW
50
W
50
W
40
WSW
35
W
30
NW
 mm 
1
3
4
1
4
2
3
4
5
1
2
5
1
2
2
3
1
max°C
2
2
2
2
2
3
4
3
3
2
2
3
3
3
4
4
4
5
4
3
2
2
2
3
3
3
3
4
3
3
3
2
2
2
3
3
Moonrise
7:22
8:42
10:03
11:23
12:44
2:08
3:36
5:09
6:45
8:15
9:27
Moonset
11:33
11:51
12:04
12:15
12:25
12:35
12:45
12:59
1:18
1:46
2:31
3:39
Sunrise
3:36
3:36
3:38
3:38
3:39
3:40
3:41
3:42
3:43
3:44
3:45
3:46
Sunset
8:31
8:32
8:32
8:34
8:34
8:34
8:34
8:34
8:34
8:34
8:34
8:34
8:34
Today's sea temperature in Heard Island is
3.2° C
(Statistics for 22 Dec 1981-2005 – mean: 2.3 max: 3.3 min: 1.4°C)
Issued (local time): 10 pm Monday 22 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest