Ascension Island Sea Conditions and Tide Table

Ascension 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 06:35 AM and sunset is at 07:10 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 23°C on Thu morning, min 22°C on Thu night). Mainly fresh winds.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 24°C on Tue afternoon, min 22°C on Sun morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 24°C on Wed afternoon, min 23°C on Wed morning). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Warm (max 23°C on Sat morning, min 22°C on Sun morning). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
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
5:28PM1.13m
5:31AM1.06m
6:01PM1.16m
6:06AM1.05m
6:33PM1.17m
6:40AM1.05m
7:06PM1.18m
7:16AM1.03m
7:40PM1.18m
7:53AM1.02m
8:16PM1.18m
8:32AM1.00m
8:56PM1.16m
9:17AM0.98m
9:40PM1.15m
10:09AM0.95m
10:32PM1.13m
11:12AM0.94m
11:33PM1.11m
12:24PM0.95m
00:41AM1.10m
1:38PM0.99m
1:52AM1.10m
Low Tide
11:06AM0.39m
11:37PM0.46m
11:38AM0.38m
00:13AM0.45m
12:10PM0.38m
00:48AM0.44m
12:43PM0.38m
1:23AM0.43m
1:16PM0.39m
2:00AM0.43m
1:50PM0.41m
2:39AM0.44m
2:28PM0.43m
3:23AM0.45m
3:11PM0.46m
4:13AM0.46m
4:01PM0.49m
5:10AM0.46m
5:02PM0.51m
6:15AM0.46m
6:15PM0.53m
7:22AM0.44m
7:33PM0.52m
Wave
height (m) 
direction
period (s) 
1.4
NNW
13
1.5
NNW
13
1.4
NW
12
1.4
SW
11
1.3
SSW
11
1.2
S
10
1.2
NW
14
1.2
NW
14
1.2
NW
13
1.1
NW
13
1.1
NW
12
1.1
WNW
12
1.2
NW
12
1.2
W
11
1.3
NNW
16
1.3
NW
14
1.3
NNW
16
1.3
NW
13
1.3
NNW
14
1.3
NW
13
1.3
NW
13
1.3
WNW
13
1.3
WSW
13
1.3
SW
12
1.3
NNW
16
1.2
NNW
15
1.1
NNW
14
1.1
NNW
14
1
NNW
14
0.9
NNW
13
0.9
NNW
13
0.9
NNW
13
0.8
NNW
12
0.8
NNW
12
0.8
NNW
12
0.9
NW
12
clear
cloud
cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
clear
cloud
cloud
part cloud
cloud
part cloud
cloud
part cloud
clear
cloudy
cloudy
some clouds
clear
some clouds
some clouds
clear
clear
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
clear
some clouds
cloudy
cloudy
cloudy
some clouds
cloudy
some clouds
clear
cloudy
cloudy
some clouds
cloudy
some clouds
cloudy
some clouds
 km/h
30
ESE
30
SE
25
ESE
25
ESE
25
ESE
20
ESE
20
SE
20
SE
20
SE
25
SE
25
SE
25
SE
25
SE
20
SE
20
SE
15
SE
20
SE
20
SE
20
SE
20
SE
25
ESE
25
ESE
25
ESE
25
SE
20
SE
20
SE
20
SE
25
SE
25
SE
20
SE
20
SE
15
ESE
20
ESE
20
ESE
20
ESE
20
ESE
 mm 
max°C
23
23
23
23
23
23
23
23
23
23
23
22
22
22
23
23
24
23
23
24
23
23
23
23
23
23
23
23
23
23
22
23
23
23
23
23
Moonrise
5:07
5:56
6:48
7:41
8:34
9:26
10:16
11:04
11:52
12:41
1:31
2:25
Moonset
6:05
6:57
7:49
8:39
9:27
10:12
10:55
11:35
12:16
12:57
1:42
Sunrise
6:35
6:35
6:37
6:37
6:37
6:37
6:39
6:39
6:39
6:39
6:41
6:41
Sunset
7:10
7:12
7:12
7:13
7:13
7:14
7:14
7:15
7:15
7:15
7:15
7:15
Today's sea temperature in Ascension Island is
24.7° C
(Statistics for 18 Dec 1981-2005 – mean: 25.1 max: 26.1 min: 24.3°C)
Issued (local time): 5 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest