Johnston Atoll Sea Conditions and Tide Table

Johnston Atoll 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 06:43 AM and sunset is at 07:52 PM.

Days 1–3 Weather Summary

Light rain (total 5mm), mostly falling on Sun afternoon. Warm air temperatures (max 27°C on Sat morning, min 25°C on Sun night). Mainly fresh winds.

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Tue afternoon. Warm air temperatures (max 26°C on Tue morning, min 26°C on Tue morning). Mainly fresh winds.

Days 7–9 Weather Summary

Light rain (total 6mm), mostly falling on Fri morning. Warm (max 26°C on Fri morning, min 25°C on Fri night). Mainly fresh winds.

Days 10–12 Weather Summary

Light rain (total 6mm), mostly falling on Mon afternoon. Warm (max 26°C on Mon morning, min 26°C on Mon morning). Mainly fresh winds.

Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
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
7:58AM0.46m
7:53PM0.67m
8:46AM0.47m
8:38PM0.64m
9:40AM0.50m
9:27PM0.60m
10:38AM0.54m
10:23PM0.55m
11:39AM0.58m
11:28PM0.50m
12:41PM0.63m
00:39AM0.46m
1:40PM0.69m
1:53AM0.44m
2:37PM0.74m
3:02AM0.44m
3:30PM0.77m
4:04AM0.45m
4:21PM0.79m
4:59AM0.47m
5:09PM0.80m
5:50AM0.48m
5:54PM0.78m
Low Tide
1:26PM0.05m
2:33AM-0.06m
2:15PM0.09m
3:16AM-0.04m
3:13PM0.12m
4:04AM-0.03m
4:24PM0.15m
4:55AM-0.02m
5:47PM0.16m
5:52AM-0.00m
7:11PM0.12m
6:51AM-0.00m
8:24PM0.07m
7:51AM-0.00m
9:25PM0.01m
8:49AM-0.01m
10:18PM-0.05m
9:43AM-0.02m
11:07PM-0.09m
10:35AM-0.03m
11:52PM-0.12m
11:23AM-0.02m
00:35AM-0.12m
Wave
height (m) 
direction
period (s) 
1.7
E
8.0
1.6
E
8.0
1.7
ENE
7.0
1.8
ENE
7.0
1.9
ENE
7.0
1.9
E
7.0
1.8
E
8.0
1.8
E
8.0
1.9
E
8.0
1.9
E
8.0
1.8
E
8.0
1.8
E
8.0
1.8
E
8.0
1.7
E
8.0
1.7
E
8.0
1.6
E
8.0
1.5
E
8.0
1.5
E
8.0
1.5
E
8.0
1.5
E
7.0
1.5
E
7.0
1.6
E
7.0
1.7
E
7.0
1.8
E
7.0
1.8
E
8.0
1.7
E
8.0
1.9
E
8.0
1.9
E
8.0
2
E
8.0
2
E
8.0
2
E
8.0
1.9
SE
10.0
1.8
SE
10.0
1.7
E
8.0
1.7
ESE
9.0
1.7
ESE
9.0
part cloud
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
thunderstorm
clear
clear
clear
part cloud
cloud
part cloud
rain showers
thunderstorm
clear
thunderstorm
clear
clear
clear
clear
clear
thunderstorm
clear
thunderstorm
part cloud
clear
clear
thunderstorm
clear
thunderstorm
part cloud
some clouds
clear
clear
clear
risk tstorm
risk tstorm
risk tstorm
clear
clear
clear
risk tstorm
clear
clear
clear
some clouds
cloudy
some clouds
rain shwrs
risk tstorm
clear
risk tstorm
clear
clear
clear
clear
clear
risk tstorm
clear
risk tstorm
some clouds
clear
clear
risk tstorm
clear
risk tstorm
some clouds
 km/h
30
E
20
ENE
35
ENE
30
ENE
30
E
25
E
30
E
30
E
35
E
25
E
30
E
30
E
25
E
25
E
25
E
25
E
20
E
25
ENE
30
E
25
E
30
E
30
E
30
E
30
E
30
E
30
E
30
E
30
E
35
E
30
E
30
E
25
E
25
E
25
E
25
E
25
E
 mm 
2
1
2
1
1
2
2
2
1
2
2
max°C
27
27
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
Moonrise
11:10
11:51
12:30
1:08
1:46
2:27
3:10
3:59
4:55
5:56
7:02
Moonset
9:47
10:43
11:39
12:33
1:28
2:24
3:22
4:25
5:31
6:39
7:45
8:47
Sunrise
6:43
6:43
6:45
6:45
6:45
6:45
6:45
6:46
6:46
6:46
6:46
6:47
Sunset
7:52
7:52
7:52
7:52
7:52
7:52
7:52
7:52
7:52
7:53
7:53
7:53
Today's sea temperature in Johnston Atoll is 27.4 °C (Statistics for 14 Jun 1981-2005 – mean: 26.6 max: 27.3 min: 25.5°C)
Issued (local time): 1 am Saturday 14 Jun 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest