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 06:50 AM and sunset is at 06:06 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Warm air temperatures (max 21°C on Mon morning, min 19°C on Tue morning). Mainly fresh winds.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 20°C on Thu night, min 19°C on Thu morning). Mainly fresh winds.

Days 7–9 Weather Summary

Mostly dry. Warm (max 20°C on Sun morning, min 18°C on Mon morning). Wind will be generally light.

Days 10–12 Weather Summary

Mostly dry. Warm (max 20°C on Wed afternoon, min 18°C on Wed morning). Winds increasing (light winds from the ESE on Wed afternoon, strong winds from the ESE by Sat morning).

Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
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
5:16PM0.85m
5:52AM0.90m
5:59PM0.83m
6:39AM0.89m
6:48PM0.80m
7:33AM0.86m
7:45PM0.76m
8:33AM0.83m
8:53PM0.74m
9:42AM0.81m
10:11PM0.74m
10:55AM0.81m
11:30PM0.76m
12:03PM0.83m
00:39AM0.82m
1:02PM0.85m
1:39AM0.87m
1:55PM0.87m
2:30AM0.92m
2:42PM0.89m
3:16AM0.95m
3:24PM0.89m
3:59AM0.96m
Low Tide
11:18AM0.17m
11:29PM0.08m
12:01PM0.18m
00:13AM0.09m
12:50PM0.21m
1:03AM0.12m
1:47PM0.23m
2:01AM0.16m
2:52PM0.25m
3:09AM0.19m
4:05PM0.25m
4:26AM0.21m
5:18PM0.22m
5:42AM0.20m
6:24PM0.17m
6:50AM0.18m
7:20PM0.12m
7:48AM0.15m
8:10PM0.07m
8:39AM0.13m
8:55PM0.04m
9:25AM0.12m
9:37PM0.02m
Wave
height (m) 
direction
period (s) 
1.5
S
12.0
1.4
S
12.0
1.4
S
11.0
1.5
SSW
14.0
1.6
SSW
14.0
1.5
SSW
13.0
1.8
SSW
12.0
1.9
SSW
17.0
2.1
SSW
15.0
2.1
SSW
14.0
2.1
SSW
13.0
2.2
S
17.0
2.5
SSW
16.0
2.5
S
15.0
2.4
SSW
14.0
2.3
SSW
14.0
2.2
SSW
14.0
2
SSW
13.0
1.7
SSW
13.0
1.7
SSW
12.0
1.6
SSW
12.0
1.4
SSW
12.0
1.4
SSW
11.0
1.3
SSW
11.0
1.2
SSW
11.0
1.3
SSW
12.0
1.5
SSW
11.0
1.4
SSW
10.0
1.3
SSW
10.0
1.3
SSW
10.0
1.3
SSW
16.0
1.3
SSW
16.0
1.3
SSW
15.0
1.4
SSW
14.0
1.6
SSW
13.0
1.9
ESE
6.0
part cloud
part cloud
cloud
part cloud
clear
rain showers
clear
rain showers
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
clear
part cloud
some clouds
some clouds
cloudy
some clouds
clear
rain shwrs
clear
rain shwrs
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
cloudy
clear
some clouds
some clouds
clear
some clouds
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
cloudy
cloudy
some clouds
clear
some clouds
 km/h
15
E
20
E
25
ESE
25
ESE
20
SE
20
ESE
30
SE
20
ESE
30
ESE
35
ESE
30
ESE
30
ESE
30
ESE
25
ESE
20
ESE
25
SE
25
SE
20
SE
20
ESE
25
ESE
20
SE
25
SE
20
SE
20
SE
20
ESE
15
ESE
20
ESE
25
ESE
20
ESE
20
ESE
25
SE
20
ESE
25
ESE
30
SE
30
ESE
35
ESE
 mm 
1
1
max°C
21
21
20
20
19
19
19
19
20
19
19
20
19
20
20
19
19
20
20
20
19
19
19
19
20
20
20
19
20
19
18
20
20
19
19
19
Moonrise
9:38
10:32
11:27
12:24
1:23
2:26
3:31
4:37
5:39
6:35
7:25
Moonset
9:35
10:14
10:52
11:31
12:13
1:00
1:52
2:50
3:53
4:57
6:01
7:01
Sunrise
6:50
6:50
6:50
6:50
6:50
6:50
6:50
6:50
6:48
6:48
6:48
6:48
Sunset
6:06
6:06
6:07
6:07
6:07
6:07
6:07
6:07
6:07
6:08
6:08
6:08
Today's sea temperature in James Bay, Saint Helena is 21.6 °C (Statistics for 14 Jul 1981-2005 – mean: 21.4 max: 22.1 min: 20.7°C)
Issued (local time): 11 am Monday 14 Jul 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest