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 05:14 PM.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 18°C on Sun morning, min 7°C on Fri night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Wed afternoon, min 9°C on Mon night). Wind will be generally light.

Days 8–10 Weather Summary

Heavy rain (total 50mm), heaviest during Sat afternoon. Very mild (max 18°C on Sat afternoon, min 12°C on Thu night). Mainly strong winds.

Days 11–13 Weather Summary

Moderate rain (total 12mm), heaviest on Wed morning. Very mild (max 13°C on Wed afternoon, min 8°C on Mon night). Winds decreasing (strong winds from the NW on Sun afternoon, calm by Tue afternoon).

Fri
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wed
17
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
Wave Height Map
High Tide
7:47PM2.58m
9:10AM2.77m
8:24PM2.58m
9:50AM2.74m
9:03PM2.54m
10:30AM2.68m
9:44PM2.47m
11:11AM2.60m
10:29PM2.37m
11:55AM2.51m
11:21PM2.25m
12:41PM2.41m
00:23AM2.13m
1:32PM2.33m
1:39AM2.05m
2:26PM2.28m
3:05AM2.03m
3:22PM2.25m
4:28AM2.11m
4:16PM2.27m
5:37AM2.25m
5:06PM2.31m
6:34AM2.40m
Low Tide
2:15PM1.09m
2:24AM-0.03m
2:54PM1.11m
3:03AM-0.04m
3:33PM1.13m
3:42AM0.02m
4:14PM1.15m
4:23AM0.14m
4:58PM1.17m
5:07AM0.30m
5:48PM1.17m
5:55AM0.49m
6:44PM1.14m
6:49AM0.70m
7:48PM1.08m
7:52AM0.90m
8:56PM0.96m
9:03AM1.05m
10:01PM0.79m
10:16AM1.14m
10:58PM0.60m
11:21AM1.18m
11:49PM0.40m
Wave
height (m) 
direction
period (s) 
0.7
NW
5
0.2
W
5
0.1
W
5
0.1
W
4
0.1
W
3
0.2
W
3
0.4
W
3
0.3
W
3
0.7
WNW
4
0.8
NW
4
0.3
NW
4
0.2
N
3
0.4
NW
2
0.1
NW
3
0
W
2
0
W
4
0
W
4
0
W
4
0.2
NNW
2
0.2
N
2
0.1
NE
2
0.1
NE
2
0.2
ESE
2
0.9
SSE
4
2.2
S
8
1.8
W
6
1.8
WNW
6
2.3
WNW
6
1.5
WNW
6
1.1
NW
5
0.8
NW
4
0.3
WSW
6
0.1
W
6
0.1
W
5
0.1
SW
3
0.3
S
4
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
heavy rain
mod rain
cloud
cloud
cloud
part cloud
clear
part cloud
cloud
cloud
light rain
heavy rain
clear
clear
clear
clear
some clouds
some clouds
clear
some clouds
some clouds
clear
clear
clear
some clouds
clear
clear
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
cloudy
heavy rain
mod rain
cloudy
cloudy
cloudy
some clouds
clear
some clouds
cloudy
cloudy
light rain
heavy rain
 km/h
25
N
5
NNE
5
E
5
W
10
WSW
15
SW
20
WNW
10
W
25
NNW
25
NW
15
NNE
10
NNE
20
NNW
10
NNE
5
ENE
0
W
5
NE
10
NNE
15
N
15
NE
15
NE
15
E
15
E
30
ESE
40
SSE
40
NW
40
WNW
50
NW
35
NW
30
NNW
25
NNW
10
NE
10
ENE
0
NNE
10
ENE
15
N
 mm 
44
6
1
11
max°C
9
7
10
12
15
18
18
17
16
13
12
12
13
11
13
14
13
14
16
13
14
16
14
16
18
17
12
11
10
11
11
10
10
12
12
11
Moonrise
5:14
6:21
7:33
8:45
9:53
10:57
11:58
12:55
1:51
2:47
3:44
4:42
Moonset
8:33
9:35
10:25
11:06
11:40
12:09
12:35
1:00
1:25
1:52
2:21
2:55
Sunrise
7:07
7:09
7:09
7:09
7:11
7:11
7:11
7:13
7:13
7:13
7:15
7:16
Sunset
5:14
5:14
5:14
5:14
5:14
5:14
5:15
5:15
5:15
5:15
5:15
5:15
Today's sea temperature in Io Sima (Nagasaki) is
20.9° C
(Statistics for 05 Dec 1981-2005 – mean: 21.1 max: 22.1 min: 20.2°C)
Issued (local time): 2 pm Friday 05 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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