Onagawa Sea Conditions and Tide Table

Onagawa 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 06:46 AM and sunset is at 04:15 PM.

Days 1–3 Weather Summary

Light rain (total 8mm), mostly falling on Sun morning. Cool air temperatures (max 15°C on Sat night, min 4°C on Fri morning). Winds increasing (light winds from the W on Fri morning, strong winds from the WNW by Sun night).

Days 4–6 Weather Summary

Moderate rain (total 16mm), heaviest on Wed afternoon. Cool air temperatures (max 13°C on Wed night, min 2°C on Mon night). Winds increasing (calm on Tue morning, near gales from the WNW by Wed night).

Days 7–9 Weather Summary

Light rain (total 4mm), mostly falling on Sat night. Very mild (max 10°C on Sat night, min 2°C on Thu night). Winds increasing (calm on Fri night, strong winds from the E by Sat night).

Days 10–12 Weather Summary

Heavy rain (total 35mm), heaviest during Sun morning. Very mild (max 11°C on Sun morning, min 7°C on Mon night). Winds decreasing (near gales from the WNW on Sun night, light winds from the NNW by Mon night).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
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
1:45PM1.45m
5:03AM1.28m
2:26PM1.48m
5:39AM1.29m
3:06PM1.48m
6:14AM1.28m
3:48PM1.46m
6:46AM1.26m
4:32PM1.41m
7:18AM1.25m
5:20PM1.34m
7:48AM1.23m
6:12PM1.24m
8:19AM1.22m
7:15PM1.12m
8:51AM1.22m
8:39PM1.02m
9:26AM1.23m
10:36PM0.95m
10:04AM1.25m
00:50AM0.98m
10:47AM1.28m
2:30AM1.06m
Low Tide
8:30AM1.06m
9:29PM-0.02m
9:12AM1.06m
10:08PM-0.05m
9:52AM1.05m
10:46PM-0.05m
10:33AM1.03m
11:24PM0.00m
11:16AM0.99m
00:01AM0.09m
12:03PM0.94m
00:39AM0.20m
12:57PM0.88m
1:17AM0.34m
1:59PM0.81m
1:55AM0.48m
3:12PM0.72m
2:37AM0.64m
4:30PM0.60m
3:24AM0.78m
5:43PM0.47m
4:24AM0.91m
6:44PM0.33m
Wave
height (m) 
direction
period (s) 
0.6
ENE
13
0.6
ENE
12
0.8
ENE
12
0.8
ESE
7
1.1
S
6
1.2
S
6
2.5
S
8
2.4
SSE
8
2
SSE
9
1.9
SSE
9
1.7
SSE
10
1
SE
10
0.9
SE
9
0.8
SE
9
1
SE
9
1.3
S
5
2
SSE
7
2.2
SE
8
2
SE
9
1.8
SE
9
1.3
SE
9
1.2
ESE
11
1.1
E
15
1
E
14
1
E
14
1.1
E
14
1.1
E
13
2.4
ESE
7
3.5
SE
9
3
ESE
10
2.3
ESE
11
2.2
E
11
1.7
E
11
1.5
E
11
1.8
E
11
2
ESE
10
clear
clear
clear
clear
clear
part cloud
light rain
rain showers
rain showers
part cloud
clear
clear
clear
part cloud
cloud
part cloud
mod rain
rain showers
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
light rain
heavy rain
mod rain
rain showers
part cloud
part cloud
part cloud
light rain
cloud
light rain
clear
clear
clear
clear
clear
some clouds
light rain
rain shwrs
rain shwrs
some clouds
clear
clear
clear
some clouds
cloudy
some clouds
mod rain
rain shwrs
clear
clear
clear
some clouds
clear
clear
some clouds
cloudy
light rain
heavy rain
mod rain
rain shwrs
some clouds
some clouds
some clouds
light rain
cloudy
light rain
 km/h
10
W
15
S
15
WSW
15
WSW
10
S
20
SSW
45
SSW
15
WSW
45
WNW
30
NW
35
NW
10
NNW
0
NNW
10
SE
25
S
35
S
40
S
55
WNW
30
NW
35
NW
30
WNW
20
NW
25
NNW
5
NW
10
SSE
20
SSE
20
SE
45
ENE
50
NNE
50
WNW
30
WNW
35
WNW
20
WNW
20
NE
30
ENE
30
NE
 mm 
4
1
3
7
9
4
19
10
3
2
1
max°C
6
10
10
10
14
15
15
15
9
5
5
3
3
5
11
12
12
13
6
6
4
5
5
3
6
9
10
11
11
8
10
9
7
8
9
8
Moonrise
6:09
7:04
7:54
8:36
9:12
9:42
10:09
10:33
10:57
11:21
11:47
12:19
Moonset
3:10
4:01
4:59
6:01
7:06
8:11
9:16
10:22
11:28
12:37
1:50
Sunrise
6:46
6:46
6:47
6:47
6:48
6:48
6:48
6:48
6:48
6:50
6:50
6:50
Sunset
4:15
4:15
4:15
4:15
4:16
4:16
4:17
4:17
4:19
4:20
4:20
4:21
Today's sea temperature in Onagawa is
12.7° C
(Statistics for 19 Dec 1981-2005 – mean: 15.3 max: 17.9 min: 13.0°C)
Issued (local time): 2 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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