Tristan da Cunha Island Sea Conditions and Tide Table

Tristan da Cunha 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 05:26 AM and sunset is at 08:07 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Cool air temperatures (max 17°C on Tue night, min 12°C on Mon morning). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 18mm), heaviest on Fri night. Warm air temperatures (max 20°C on Fri night, min 15°C on Sat night). Winds increasing (light winds from the NW on Thu morning, near gales from the NNW by Fri night).

Days 7–9 Weather Summary

Moderate rain (total 11mm), heaviest on Mon night. Very mild (max 19°C on Mon night, min 15°C on Sun morning). Winds decreasing (near gales from the NNW on Tue morning, moderate winds from the W by Tue night).

Days 10–12 Weather Summary

Light rain (total 6mm), mostly falling on Thu night. Very mild (max 19°C on Thu afternoon, min 15°C on Fri night). Winds increasing (moderate winds from the WNW on Wed night, strong winds from the NW by Thu night).

Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
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
1:49PM0.76m
2:14AM0.72m
2:26PM0.75m
2:54AM0.71m
3:06PM0.74m
3:38AM0.69m
3:52PM0.73m
4:30AM0.68m
4:47PM0.71m
5:31AM0.68m
5:52PM0.70m
6:39AM0.68m
7:05PM0.70m
7:49AM0.70m
8:19PM0.71m
8:55AM0.74m
9:27PM0.74m
9:54AM0.78m
10:27PM0.77m
10:49AM0.81m
11:24PM0.79m
11:40AM0.85m
00:14AM0.81m
Low Tide
7:39AM0.27m
8:07PM0.25m
8:15AM0.28m
8:45PM0.26m
8:54AM0.29m
9:27PM0.27m
9:39AM0.31m
10:16PM0.28m
10:33AM0.32m
11:13PM0.29m
11:37AM0.33m
00:18AM0.29m
12:50PM0.32m
1:28AM0.29m
2:04PM0.30m
2:36AM0.27m
3:13PM0.26m
3:38AM0.25m
4:14PM0.21m
4:35AM0.23m
5:10PM0.17m
5:28AM0.21m
6:01PM0.14m
Wave
height (m) 
direction
period (s) 
2.1
WSW
11
1.8
WSW
12
1.7
WSW
11
1.5
WSW
11
1.3
WSW
11
1.3
WSW
10
1.2
SW
10
1.2
SW
10
1.4
SW
10
1.5
WSW
9
1.6
WSW
9
1.6
NNW
17
1.5
NNW
16
1.8
NNW
16
2.4
NW
7
3.5
NW
9
3
NW
9
2.5
WNW
9
3
W
9
3
SW
12
2.5
SW
12
2.5
SW
12
2.4
SW
12
2.5
SW
12
3.5
SW
13
3
SW
12
2.5
SW
12
2.2
SW
11
2
WSW
10
2.1
WSW
16
3
SW
14
3
SW
13
3.5
SW
13
4
WSW
12
3.5
WSW
12
3
WSW
12
clear
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
light rain
cloud
rain showers
part cloud
part cloud
light rain
heavy rain
part cloud
clear
rain showers
clear
part cloud
part cloud
part cloud
clear
rain showers
light rain
part cloud
part cloud
clear
clear
clear
clear
clear
rain showers
clear
clear
rain showers
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
cloudy
light rain
cloudy
rain shwrs
some clouds
some clouds
light rain
heavy rain
some clouds
clear
rain shwrs
clear
some clouds
some clouds
some clouds
clear
rain shwrs
light rain
some clouds
some clouds
clear
clear
clear
clear
clear
rain shwrs
clear
clear
rain shwrs
 km/h
30
ESE
20
E
15
NE
15
NNW
20
NNW
20
NW
20
NW
15
W
25
NW
25
WNW
35
NW
30
NW
30
NNW
40
NNW
45
NNW
40
WSW
40
WSW
30
WSW
30
W
25
W
30
NW
30
NW
25
NNW
35
N
50
NNW
35
WNW
25
W
25
W
30
W
25
WNW
30
NW
45
NW
50
NW
40
W
30
W
35
WSW
 mm 
2
3
2
12
1
6
5
5
1
max°C
12
13
14
15
16
17
17
17
17
17
18
18
18
19
20
17
16
15
16
17
17
18
18
19
19
19
18
17
17
17
18
19
19
17
17
17
Moonrise
7:17
8:21
9:25
10:29
11:34
12:39
1:47
2:58
4:14
5:31
6:46
7:54
Moonset
10:20
10:51
11:19
11:44
12:09
12:34
1:01
1:32
2:11
2:59
3:59
Sunrise
5:26
5:26
5:26
5:26
5:28
5:28
5:28
5:30
5:31
5:31
5:31
5:33
Sunset
8:07
8:08
8:08
8:09
8:09
8:09
8:10
8:10
8:10
8:10
8:12
8:12
Today's sea temperature in Tristan da Cunha Island is
18.1° C
(Statistics for 22 Dec 1981-2005 – mean: 16.0 max: 17.1 min: 15.1°C)
Issued (local time): 5 am Monday 22 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest