James Bay, Saint Helena Sea Conditions and Tide Table

James Bay, Saint Helena 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 05:46 AM and sunset is at 06:51 PM.

Days 1–3 Weather Summary

Mostly dry. Warm air temperatures (max 21°C on Thu morning, min 20°C on Thu night). Mainly fresh winds.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 22°C on Tue night, min 20°C on Sun morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Warm (max 22°C on Thu night, min 20°C on Wed morning). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Warm (max 22°C on Sat night, min 19°C on Tue 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
2:10PM0.80m
2:17AM0.83m
2:46PM0.83m
2:50AM0.83m
3:21PM0.84m
3:24AM0.83m
3:56PM0.85m
3:57AM0.83m
4:31PM0.85m
4:33AM0.81m
5:08PM0.84m
5:10AM0.79m
5:48PM0.83m
5:52AM0.77m
6:34PM0.82m
6:39AM0.75m
7:26PM0.81m
7:36AM0.73m
8:26PM0.81m
8:42AM0.72m
9:33PM0.81m
9:56AM0.73m
10:41PM0.83m
Low Tide
7:59AM0.17m
8:12PM0.21m
8:32AM0.14m
8:48PM0.20m
9:05AM0.13m
9:23PM0.20m
9:38AM0.12m
9:59PM0.21m
10:12AM0.12m
10:35PM0.21m
10:47AM0.13m
11:13PM0.23m
11:25AM0.14m
11:55PM0.24m
12:07PM0.16m
00:43AM0.26m
12:55PM0.18m
1:40AM0.27m
1:52PM0.19m
2:45AM0.28m
2:58PM0.20m
3:55AM0.26m
4:09PM0.20m
5:04AM0.22m
Wave
height (m) 
direction
period (s) 
1.5
SSW
11
1.5
S
11
1.5
S
10
1.6
S
10
1.5
S
9
1.3
SSE
9
1.3
SSE
9
1.2
SSE
8
1.3
SSE
8
1.2
SE
8
1.2
SE
9
1.2
SE
9
1.3
SE
9
1.3
SE
9
1.3
S
10
1.4
SSE
10
1.3
SSE
9
1.3
SSE
10
1.3
SSE
9
1.3
WNW
14
1.3
WNW
14
1.3
W
13
1.3
W
12
1.3
WSW
12
1.3
SSW
11
1.3
SW
11
1.2
SSE
9
1.2
SSE
8
1.1
SSE
8
1.1
SSE
8
1.1
SE
8
1.1
NW
13
1
WNW
13
0.9
WSW
12
0.9
SE
8
0.9
SSE
8
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
clear
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
some clouds
clear
clear
clear
clear
clear
some clouds
clear
clear
clear
some clouds
some clouds
cloudy
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
some clouds
clear
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
clear
some clouds
some clouds
some clouds
some clouds
some clouds
clear
some clouds
 km/h
30
ESE
25
E
25
ESE
25
ESE
20
E
20
ESE
20
ESE
20
ESE
15
SE
15
SE
15
SSE
20
SE
20
ESE
20
ESE
20
ESE
20
E
15
ESE
15
ESE
20
E
20
E
20
ESE
20
ESE
20
E
20
ESE
20
ESE
20
ESE
20
ESE
20
ESE
15
E
20
ESE
25
ESE
20
E
20
ESE
20
ESE
15
ESE
20
ESE
 mm 
max°C
21
21
21
21
21
21
21
21
21
20
21
21
20
21
21
20
21
22
21
21
20
21
21
22
21
21
22
21
21
22
21
21
21
20
20
20
Moonrise
4:14
5:02
5:54
6:48
7:42
8:37
9:30
10:22
11:14
12:07
1:01
1:59
Moonset
5:46
6:40
7:31
8:20
9:06
9:47
10:27
11:04
11:40
12:18
12:58
Sunrise
5:46
5:47
5:47
5:48
5:48
5:48
5:48
5:50
5:50
5:50
5:52
5:52
Sunset
6:51
6:52
6:52
6:52
6:52
6:53
6:53
6:53
6:54
6:54
6:55
6:55
Today's sea temperature in James Bay, Saint Helena is
21.7° C
(Statistics for 18 Dec 1981-2005 – mean: 22.0 max: 22.9 min: 21.1°C)
Issued (local time): 11 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest