Ryotu Sea Conditions and Tide Table

Ryotu 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 04:30 PM.

Days 1–4 Weather Summary

Heavy rain (total 37mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Fri afternoon. Icy conditions (max 9°C on Thu night, min -1°C on Fri afternoon). Winds decreasing (near gales from the NNW on Thu night, light winds from the NW by Sat night).

Days 5–7 Weather Summary

Moderate rain (total 12mm), heaviest on Mon night. Cool air temperatures (max 11°C on Mon night, min 4°C on Tue night). Winds decreasing (strong winds from the WSW on Mon night, calm by Wed morning).

Days 8–10 Weather Summary

Moderate rain (total 12mm), heaviest on Wed night. Mild temperatures (max 9°C on Thu morning, min 2°C on Thu night). Wind will be generally light.

Days 11–13 Weather Summary

Heavy rain (total 28mm), heaviest during Tue morning. Mild temperatures (max 8°C on Sat afternoon, min 3°C on Sat night). Winds decreasing (near gales from the NNW on Sat night, calm by Mon afternoon).

Thu
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tue
6
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
8:41PM0.22m
6:19AM0.26m
8:53PM0.22m
7:54AM0.23m
9:10PM0.23m
10:06AM0.21m
9:33PM0.24m
12:28PM0.21m
10:02PM0.26m
2:29PM0.22m
10:37PM0.28m
4:09PM0.24m
11:17PM0.30m
00:00AM0.31m
00:46AM0.32m
1:33AM0.33m
6:49PM0.22m
6:49PM0.21m
Low Tide
1:14PM0.08m
00:20AM0.20m
1:57PM0.12m
2:05AM0.18m
2:39PM0.15m
3:45AM0.15m
3:21PM0.18m
5:05AM0.11m
3:59PM0.20m
6:08AM0.08m
4:32PM0.22m
7:01AM0.04m
4:51PM0.24m
7:50AM0.01m
8:35AM-0.01m
9:18AM-0.02m
9:59AM-0.02m
7:22PM0.22m
10:38AM-0.01m
8:29PM0.21m
11:17AM0.01m
Wave
height (m) 
direction
period (s) 
1.5
N
6
1.3
NNW
7
4
NNW
10
4
NW
10
4
NW
11
2.4
NW
10
2
NNW
9
1.6
NW
8
1.4
NW
8
1.4
NW
8
1.1
NW
8
0.9
WNW
7
1.1
W
8
2
WNW
10
2.1
WNW
10
1.9
WNW
8
2
NW
10
1.6
NW
9
1.2
NW
8
1.1
NW
7
1.3
NW
7
1.1
NW
7
1.6
NW
7
1.6
NW
8
1.4
NW
8
1.2
NW
8
1
NW
7
0.8
NW
7
2.5
NNW
8
1.7
NW
7
1.3
NW
7
1.4
NNW
7
1
N
7
0.8
NNW
6
0.9
N
7
1
N
7
mod rain
rain showers
light rain
light snow
light snow
rain showers
light rain
rain showers
clear
part cloud
clear
part cloud
part cloud
rain showers
rain showers
clear
part cloud
part cloud
clear
rain showers
light rain
light rain
light rain
cloud
part cloud
cloud
light rain
mod rain
rain showers
rain showers
rain showers
part cloud
part cloud
rain showers
rain showers
rain showers
mod rain
rain shwrs
light rain
light snow
light snow
rain shwrs
light rain
rain shwrs
clear
some clouds
clear
some clouds
some clouds
rain shwrs
rain shwrs
clear
some clouds
some clouds
clear
rain shwrs
light rain
light rain
light rain
cloudy
some clouds
cloudy
light rain
mod rain
rain shwrs
rain shwrs
rain shwrs
some clouds
some clouds
rain shwrs
rain shwrs
rain shwrs
 km/h
25
NNE
40
WSW
45
NW
50
WNW
40
WNW
20
WNW
20
WSW
10
NW
20
WNW
10
WSW
20
S
20
S
25
SSW
45
WSW
35
WNW
30
WNW
10
WNW
5
WSW
10
SW
20
WSW
15
W
10
N
25
N
10
NNW
10
NNW
5
N
10
E
35
SW
50
NNW
30
WNW
25
WNW
10
WNW
10
SE
5
SE
5
SW
15
N
 mm 
8
15
1
1
2
10
10
2
3
1
3
2
3
8
2
1
1
1
5
8
max°C
7
9
2
-1
0
3
4
6
8
8
9
9
10
11
8
5
5
6
7
8
9
7
3
3
3
3
3
8
6
4
4
4
5
5
4
4
Moonrise
10:45
11:09
11:34
12:00
12:32
1:10
1:59
2:59
4:10
5:27
6:43
Moonset
9:29
10:34
11:41
12:49
2:02
3:18
4:36
5:51
6:57
7:52
8:35
9:09
Sunrise
7:00
7:00
7:01
7:01
7:01
7:01
7:01
7:01
7:01
7:01
7:01
7:01
Sunset
4:30
4:31
4:31
4:32
4:34
4:34
4:35
4:36
4:37
4:37
4:38
4:38
Today's sea temperature in Ryotu is
14.6° C
(Statistics for 25 Dec 1981-2005 – mean: 13.2 max: 15.0 min: 11.0°C)
Issued (local time): 2 pm Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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