Io Sima (Nagasaki) Sea Conditions and Tide Table

Io Sima (Nagasaki) 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 — and sunset is at 06:06 PM.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 13°C on Mon afternoon, min 8°C on Tue morning). Winds decreasing (fresh winds from the NW on Wed afternoon, calm by Thu morning).

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 15°C on Sun morning, min 9°C on Thu night). Wind will be generally light.

Days 8–10 Weather Summary

Heavy rain (total 37mm), heaviest during Tue morning. Very mild (max 17°C on Sun afternoon, min 5°C on Tue night). Mainly fresh winds.

Days 11–13 Weather Summary

Mostly dry. Mild temperatures (max 8°C on Sat afternoon, min 4°C on Wed afternoon). Winds decreasing (fresh winds from the NNW on Wed afternoon, calm by Sat morning).

Mon
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
1
Monday
2
Tuesday
3
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
7:54PM2.47m
8:48AM2.66m
8:33PM2.61m
9:15AM2.70m
9:10PM2.68m
9:42AM2.71m
9:47PM2.69m
10:09AM2.68m
10:24PM2.63m
10:36AM2.61m
11:03PM2.50m
11:04AM2.51m
11:46PM2.32m
11:33AM2.38m
00:38AM2.11m
12:06PM2.22m
1:51AM1.92m
12:51PM2.04m
3:50AM1.84m
2:10PM1.88m
5:44AM1.98m
4:16PM1.86m
6:40AM2.18m
5:45PM2.01m
7:18AM2.36m
6:43PM2.23m
7:49AM2.51m
7:28PM2.43m
8:17AM2.62m
Low Tide
2:11PM0.79m
2:19AM-0.02m
2:43PM0.60m
2:53AM-0.03m
3:13PM0.44m
3:26AM0.03m
3:44PM0.32m
3:58AM0.15m
4:16PM0.25m
4:30AM0.33m
4:50PM0.24m
5:02AM0.56m
5:26PM0.28m
5:35AM0.81m
6:08PM0.37m
6:13AM1.08m
7:01PM0.50m
7:05AM1.34m
8:16PM0.62m
8:53AM1.53m
9:59PM0.63m
11:20AM1.47m
11:27PM0.51m
12:28PM1.26m
00:27AM0.34m
1:09PM1.03m
1:13AM0.19m
1:43PM0.79m
1:51AM0.09m
Wave
height (m) 
direction
period (s) 
0.6
WNW
4
0.4
NW
4
0.4
NW
5
0.3
NNW
3
0.3
NW
2
1
WNW
5
1.1
NW
5
0.8
WNW
5
0.3
W
5
0.2
W
5
0.1
W
5
0.3
WSW
2
0.5
W
4
0.3
WSW
4
0.1
SW
4
0.2
SSW
3
0.6
SW
4
0.8
SW
5
0.8
SW
6
0.7
SW
6
0.8
SSW
5
0.8
SSW
6
1.2
SSW
6
0.9
SSW
6
0.9
WNW
6
0.5
NW
5
0.6
NW
5
1
NW
5
0.6
NW
5
0.6
NW
4
0.9
NW
4
0.4
NW
4
0.4
NW
4
0.5
NW
3
0.2
WNW
3
0.1
W
5
0.1
W
5
0.1
W
4
0.2
N
2
0.3
NW
2
0.3
NW
4
0.1
SW
7
0.1
S
6
0.2
WSW
2
0.6
WSW
4
1
W
5
0.4
WSW
4
cloud
cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
mod rain
heavy rain
heavy rain
light rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
cloud
cloud
cloud
cloud
rain showers
clear
clear
part cloud
part cloud
cloud
light rain
rain showers
part cloud
cloudy
cloudy
clear
clear
some clouds
clear
clear
clear
clear
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
clear
some clouds
some clouds
some clouds
some clouds
mod rain
heavy rain
heavy rain
light rain
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
cloudy
cloudy
cloudy
cloudy
rain shwrs
clear
clear
some clouds
some clouds
cloudy
light rain
rain shwrs
some clouds
 km/h
20
NNW
20
NNE
15
NNE
15
NNW
10
NNW
30
NW
35
NW
20
NW
10
ENE
10
W
5
WNW
15
W
20
WNW
0
NNW
10
ESE
15
S
20
S
20
SE
20
SSW
20
SSE
25
SSE
25
S
30
SSE
10
N
20
N
20
N
25
N
35
NNW
25
NNE
25
N
30
NNW
15
N
15
NNE
25
NNW
10
N
10
NE
5
WNW
5
ENE
15
NNE
20
NNW
10
NNE
5
E
10
SW
10
SW
25
WSW
25
WNW
10
NW
 mm 
6
13
14
4
6
2
1
max°C
13
11
11
12
10
10
11
10
9
10
11
12
12
11
12
14
14
15
17
17
16
17
17
14
8
6
6
5
4
6
7
6
7
7
6
7
9
8
6
10
9
10
12
15
15
14
13
Moonrise
6:52
7:22
7:51
8:19
8:48
9:20
9:56
10:40
11:31
12:32
1:39
2:49
3:58
5:06
6:10
Moonset
4:50
5:54
6:57
8:00
9:04
10:10
11:19
12:29
1:40
2:48
3:48
4:40
5:23
6:00
6:31
Sunrise
7:01
7:01
7:00
6:58
6:58
6:56
6:56
6:54
6:54
6:52
6:52
6:50
6:48
6:48
6:47
Sunset
6:06
6:07
6:07
6:07
6:08
6:09
6:10
6:12
6:13
6:14
6:14
6:15
6:15
6:16
6:17
6:17
Today's sea temperature in Io Sima (Nagasaki) is
15.9° C
(Statistics for 16 Feb 1981-2005 – mean: 17.6 max: 18.8 min: 16.1°C)
Issued (local time): 2 pm Monday 16 Feb 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest