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 08:08 PM.

Days 1–3 Weather Summary

Heavy rain (total 32mm), heaviest during Fri night. Cool air temperatures (max 18°C on Wed morning, min 17°C on Wed morning). Winds increasing (moderate winds from the W on Wed morning, strong winds from the NW by Fri night).

Days 4–6 Weather Summary

Heavy rain (total 26mm), heaviest during Sat morning. Cool air temperatures (max 19°C on Mon afternoon, min 14°C on Sat night). Winds increasing (light winds from the WNW on Sun morning, near gales from the NNW by Mon night).

Days 7–9 Weather Summary

Some drizzle, heaviest during Thu morning. Very mild (max 19°C on Tue morning, min 15°C on Thu night). Winds decreasing (strong winds from the NW on Wed night, light winds from the WSW by Thu night).

Days 10–12 Weather Summary

Light rain (total 5mm), mostly falling on Sat night. Warm (max 21°C on Sun morning, min 15°C on Fri morning). Winds increasing (light winds from the N on Fri morning, near gales from the NW by Sun afternoon).

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
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
3:06PM0.74m
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
12:29PM0.87m
1:02AM0.81m
1:15PM0.87m
1:47AM0.80m
Low Tide
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
6:17AM0.19m
6:50PM0.13m
7:03AM0.19m
7:37PM0.14m
Wave
height (m) 
direction
period (s) 
1.3
WSW
10
1.3
WSW
10
1.5
WSW
10
1.8
WSW
9
1.8
WSW
9
1.6
WSW
8
1.7
WSW
8
1.8
NNW
16
2.4
WNW
7
2.2
WNW
8
1.9
WNW
8
2
WNW
8
1.8
WNW
8
1.8
SW
11
1.9
SW
11
1.9
SW
11
1.9
SW
11
2.5
N
7
2.5
NNW
7
2.5
NNW
8
2.3
NNW
8
3
SW
16
3
SW
15
3
SW
14
3.5
SW
13
3.5
SW
12
2.5
WSW
12
2.1
WSW
11
1.9
WSW
11
1.7
WSW
10
1.6
WSW
10
1.8
W
13
2.4
WSW
12
3
W
9
4
WNW
9
4
W
12
rain showers
cloud
part cloud
cloud
cloud
rain showers
rain showers
light rain
heavy rain
heavy rain
rain showers
clear
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
part cloud
clear
clear
rain showers
rain showers
part cloud
light rain
rain shwrs
cloudy
some clouds
cloudy
cloudy
rain shwrs
rain shwrs
light rain
heavy rain
heavy rain
rain shwrs
clear
some clouds
some clouds
some clouds
some clouds
rain shwrs
rain shwrs
some clouds
clear
clear
clear
clear
clear
rain shwrs
clear
clear
clear
clear
some clouds
clear
clear
rain shwrs
rain shwrs
some clouds
light rain
 km/h
25
NW
20
W
30
WNW
30
WNW
30
WNW
30
NW
30
NW
35
NW
40
NW
20
SSW
30
SSW
30
SSW
10
SW
15
WNW
25
N
30
N
35
N
50
NNW
25
NNW
25
SW
25
WNW
25
NW
25
NW
35
NW
45
W
35
WSW
15
SW
15
N
20
NNW
30
N
30
NNW
30
N
45
NNW
45
NNW
55
NW
40
NW
 mm 
1
1
1
5
24
19
2
1
4
1
1
1
3
max°C
18
17
17
18
18
18
18
18
18
18
17
15
16
16
17
18
19
19
19
18
17
18
18
18
18
16
16
15
17
19
19
20
20
21
21
20
Moonrise
9:25
10:29
11:34
12:39
1:47
2:58
4:14
5:31
6:46
7:54
8:49
9:34
Moonset
11:19
11:44
12:09
12:34
1:01
1:32
2:11
2:59
3:59
5:09
6:25
Sunrise
5:26
5:26
5:28
5:28
5:28
5:30
5:31
5:31
5:31
5:33
5:33
5:35
Sunset
8:08
8:09
8:09
8:09
8:10
8:10
8:10
8:10
8:12
8:12
8:12
8:12
Today's sea temperature in Tristan da Cunha Island is
18.0° C
(Statistics for 24 Dec 1981-2005 – mean: 16.1 max: 17.3 min: 14.8°C)
Issued (local time): 11 am Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest