Hikawa (Yonakuni Sima) Sea Conditions and Tide Table

Hikawa (Yonakuni 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 07:16 AM and sunset is at 05:59 PM.

Days 1–3 Weather Summary

Some drizzle, heaviest during Sun night. Warm air temperatures (max 22°C on Sun morning, min 20°C on Fri morning). Mainly fresh winds.

Days 4–6 Weather Summary

Light rain (total 8mm), mostly falling on Mon morning. Warm air temperatures (max 23°C on Wed morning, min 21°C on Mon night). Winds decreasing (strong winds from the NE on Mon night, light winds from the E by Tue night).

Days 7–9 Weather Summary

Light rain (total 6mm), mostly falling on Sat morning. Warm (max 23°C on Thu morning, min 19°C on Sat night). Winds increasing (moderate winds from the NE on Thu morning, near gales from the NNE by Sat night).

Days 10–12 Weather Summary

Light rain (total 3mm), mostly falling on Sun morning. Warm (max 22°C on Mon night, min 18°C on Sun morning). Winds decreasing (near gales from the NNE on Sun morning, light winds from the SE by Mon night).

Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
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
7:49AM1.31m
6:45PM1.60m
8:30AM1.30m
7:20PM1.62m
9:09AM1.27m
7:57PM1.61m
9:49AM1.24m
8:36PM1.57m
10:29AM1.21m
9:18PM1.49m
11:13AM1.18m
10:05PM1.39m
11:59AM1.16m
11:02PM1.27m
12:50PM1.16m
00:16AM1.15m
1:44PM1.17m
1:50AM1.07m
2:37PM1.21m
3:30AM1.06m
3:27PM1.27m
4:52AM1.10m
4:13PM1.34m
5:55AM1.15m
Low Tide
12:54PM0.71m
1:48AM-0.07m
1:29PM0.73m
2:27AM-0.08m
2:05PM0.74m
3:05AM-0.05m
2:43PM0.75m
3:46AM0.01m
3:25PM0.75m
4:28AM0.11m
4:14PM0.76m
5:12AM0.22m
5:14PM0.75m
6:02AM0.35m
6:30PM0.72m
6:58AM0.46m
7:58PM0.65m
8:02AM0.57m
9:19PM0.53m
9:08AM0.64m
10:24PM0.38m
10:08AM0.69m
11:17PM0.23m
Wave
height (m) 
direction
period (s) 
1.5
NNE
8
1.6
NE
6
1.7
NE
6
1.3
NE
6
1.1
NE
6
1.1
NE
5
1.1
NE
8
1.1
ENE
7
1.6
ENE
6
1.8
ENE
6
2
ENE
6
2.5
NE
7
2
NE
7
1.8
NE
7
1.6
NE
7
1.6
NE
7
1.3
NE
7
1.2
ENE
7
1
ENE
6
1.2
NE
4
1.6
NE
6
1.7
NE
6
1.8
NE
7
2
NE
8
1.9
NE
8
2.2
NE
7
3
NNE
8
4.5
NNE
10
4
NNE
10
3
NNE
9
2.4
NNE
9
1.9
NE
8
1.4
NE
8
1.1
NE
8
1
NE
7
0.9
ENE
7
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
rain showers
rain showers
rain showers
rain showers
part cloud
clear
rain showers
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
light rain
light rain
light rain
light rain
light rain
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
rain shwrs
rain shwrs
rain shwrs
rain shwrs
some clouds
clear
rain shwrs
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
some clouds
light rain
light rain
light rain
light rain
light rain
some clouds
clear
clear
some clouds
some clouds
clear
some clouds
 km/h
30
NE
35
NE
35
ENE
25
NE
25
NE
25
ENE
20
ENE
25
ENE
35
ENE
35
ENE
40
NE
45
NE
35
ENE
30
ENE
20
E
25
ENE
20
E
20
E
25
NE
35
NE
35
NE
35
NE
30
ENE
35
NE
35
NNE
40
NNE
50
NNE
55
NNE
50
NNE
45
NNE
30
NE
25
ENE
20
ESE
20
E
20
E
25
ENE
 mm 
1
3
1
2
2
2
1
3
2
1
max°C
20
20
20
21
21
21
22
22
22
22
22
22
22
22
22
23
23
23
23
23
23
23
23
23
23
22
21
18
18
19
20
21
22
22
22
22
Moonrise
6:07
7:14
8:24
9:32
10:35
11:34
12:30
1:22
2:14
3:05
3:58
Moonset
7:26
8:36
9:39
10:33
11:18
11:57
12:30
1:01
1:31
2:01
2:32
3:05
Sunrise
7:16
7:16
7:18
7:18
7:18
7:20
7:20
7:20
7:22
7:22
7:22
7:24
Sunset
5:59
5:59
5:59
5:59
6:00
6:00
6:00
6:00
6:00
6:00
6:00
6:01
Today's sea temperature in Hikawa (Yonakuni Sima) is
26.7° C
(Statistics for 05 Dec 1981-2005 – mean: 24.6 max: 26.3 min: 23.4°C)
Issued (local time): 8 am Friday 05 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest