Nisi (Io Sima) Sea Conditions and Tide Table

Nisi (Io Sima) 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 06:05 AM and sunset is at 04:45 PM.

Days 1–3 Weather Summary

Moderate rain (total 16mm), heaviest on Sat night. Warm air temperatures (max 24°C on Sun morning, min 21°C on Sat morning). Mainly strong winds.

Days 4–6 Weather Summary

Light rain (total 3mm), mostly falling on Tue morning. Warm air temperatures (max 23°C on Tue morning, min 22°C on Tue morning). Winds decreasing (strong winds from the NE on Wed afternoon, moderate winds from the NE by Thu night).

Days 7–9 Weather Summary

Moderate rain (total 16mm), heaviest on Sun night. Warm (max 26°C on Sun night, min 22°C on Fri morning). Mainly near gales.

Days 10–12 Weather Summary

Some drizzle, heaviest during Wed morning. Warm (max 23°C on Mon morning, min 20°C on Mon night). Mainly fresh winds.

Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
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
8:03AM0.94m
6:17PM0.93m
8:44AM0.94m
6:53PM0.91m
9:25AM0.93m
7:32PM0.87m
10:07AM0.92m
8:15PM0.82m
10:49AM0.90m
9:06PM0.77m
11:33AM0.88m
10:11PM0.70m
12:18PM0.87m
11:41PM0.65m
1:03PM0.86m
1:30AM0.64m
1:47PM0.85m
3:13AM0.67m
2:31PM0.86m
4:31AM0.73m
3:13PM0.87m
5:30AM0.79m
3:53PM0.88m
Low Tide
1:12PM0.61m
1:29AM-0.02m
1:54PM0.62m
2:06AM-0.01m
2:39PM0.62m
2:45AM0.03m
3:29PM0.61m
3:26AM0.10m
4:26PM0.59m
4:10AM0.17m
5:33PM0.55m
4:58AM0.26m
6:46PM0.50m
7:56PM0.42m
7:00AM0.43m
8:54PM0.33m
8:13AM0.49m
9:44PM0.23m
9:23AM0.54m
10:28PM0.15m
10:25AM0.57m
11:09PM0.07m
Wave
height (m) 
direction
period (s) 
2.5
NE
7
2.5
ENE
7
2.5
ENE
8
2.1
ENE
8
2.3
NE
8
2.5
NE
8
2.3
ENE
8
1.9
ENE
8
1.7
E
8
1.7
E
8
1.6
E
8
1.9
ENE
8
2
E
10
2
E
9
2.5
NE
7
2.4
NE
7
2.1
ENE
9
1.7
E
10
1.8
E
10
2.1
NNE
6
2.1
NE
7
2.5
NE
7
2.5
NE
8
3.5
ENE
9
3.5
ENE
9
3
ENE
9
3
ESE
8
2.5
ESE
9
2.5
ENE
8
3
NW
10
3
NW
11
2.5
NW
10
2.1
NW
10
1.7
NNW
9
1.6
N
8
1.5
N
8
light rain
light rain
mod rain
cloud
rain showers
part cloud
clear
clear
part cloud
rain showers
part cloud
part cloud
clear
part cloud
cloud
cloud
rain showers
light rain
part cloud
clear
rain showers
cloud
light rain
cloud
cloud
thunderstorm
thunderstorm
part cloud
part cloud
cloud
part cloud
part cloud
cloud
light rain
part cloud
part cloud
light rain
light rain
mod rain
cloudy
rain shwrs
some clouds
clear
clear
some clouds
rain shwrs
some clouds
some clouds
clear
some clouds
cloudy
cloudy
rain shwrs
light rain
some clouds
clear
rain shwrs
cloudy
light rain
cloudy
cloudy
risk tstorm
risk tstorm
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
light rain
some clouds
some clouds
 km/h
45
NE
45
NE
40
NNE
35
NNE
45
NNE
45
NE
35
NE
30
NE
30
NE
35
NE
35
NNE
35
NE
35
NE
35
NE
40
NE
40
ENE
30
NE
20
NE
40
NNE
40
NE
35
NE
40
ENE
50
ENE
50
E
50
ESE
45
SE
50
SSW
40
NNW
35
NNW
30
N
25
N
25
NNE
25
NE
25
NE
25
NNE
25
NNE
 mm 
4
1
10
1
1
1
1
1
1
1
13
1
max°C
21
21
22
24
24
24
23
23
23
23
23
23
23
23
22
22
23
23
22
22
23
22
22
22
24
25
26
23
23
21
21
21
20
20
21
21
Moonrise
5:57
7:06
8:15
9:19
10:18
11:13
12:06
12:58
1:50
2:42
3:36
Moonset
7:21
8:24
9:18
10:04
10:42
11:16
11:47
12:16
12:45
1:16
1:50
2:27
Sunrise
6:05
6:05
6:05
6:07
6:07
6:07
6:09
6:09
6:09
6:09
6:11
6:11
Sunset
4:45
4:45
4:45
4:45
4:45
4:45
4:45
4:46
4:46
4:46
4:47
4:47
Today's sea temperature in Nisi (Io Sima) is
27.7° C
(Statistics for 06 Dec 1981-2005 – mean: 25.4 max: 27.1 min: 24.0°C)
Issued (local time): 8 am Saturday 06 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest