Sirahama (Izu) Sea Conditions and Tide Table

Sirahama (Izu) 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 —.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 16°C on Mon morning, min 9°C on Mon night). Winds decreasing (fresh winds from the W on Mon afternoon, calm by Tue night).

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Thu afternoon, min 7°C on Fri night). Winds increasing (light winds from the WNW on Wed night, strong winds from the W by Thu night).

Days 8–10 Weather Summary

Moderate rain (total 15mm), heaviest on Sat night. Very mild (max 13°C on Mon afternoon, min 7°C on Sat night). Winds decreasing (near gales from the W on Sun night, calm by Tue afternoon).

Days 11–13 Weather Summary

Mostly dry. Very mild (max 15°C on Fri morning, min 7°C on Tue night). Wind will be generally light.

Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Fri
19
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
Wave Height Map
High Tide
8:13AM1.58m
6:08PM1.59m
9:00AM1.51m
6:55PM1.49m
9:46AM1.44m
7:49PM1.37m
10:30AM1.40m
9:01PM1.23m
11:12AM1.37m
10:44PM1.13m
11:52AM1.37m
00:50AM1.10m
12:30PM1.39m
2:28AM1.16m
1:08PM1.42m
3:32AM1.24m
1:45PM1.46m
4:18AM1.33m
2:21PM1.50m
4:56AM1.40m
2:57PM1.52m
5:32AM1.47m
3:32PM1.54m
Low Tide
00:43AM-0.07m
12:55PM1.16m
1:29AM0.06m
1:45PM1.14m
2:15AM0.22m
2:48PM1.10m
3:02AM0.40m
4:08PM1.03m
3:52AM0.59m
5:35PM0.91m
4:46AM0.75m
6:47PM0.77m
7:41PM0.61m
6:48AM0.98m
8:24PM0.47m
7:45AM1.04m
9:01PM0.34m
8:37AM1.07m
9:36PM0.23m
9:24AM1.09m
10:10PM0.13m
10:08AM1.09m
Wave
height (m) 
direction
period (s) 
2
W
6
1.9
W
6
2.1
W
6
1.7
W
6
1.3
W
6
1.1
NE
7
1
W
6
1
W
6
0.9
ESE
10
1.5
W
6
1.1
W
6
1.4
W
5
2
W
6
2.4
W
7
2
W
8
1.5
WNW
7
1.1
E
12
0.8
E
11
0.8
E
11
1.5
ENE
5
1.9
SSE
8
3.5
WSW
8
3.5
W
8
2.2
WSW
8
1.7
W
7
1.2
W
7
0.9
W
6
0.8
W
5
1.6
W
6
1.7
W
6
1
W
6
0.6
E
12
0.7
E
12
1.5
W
6
1
NE
4
1.1
NE
4
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
mod rain
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
clear
clear
some clouds
some clouds
some clouds
clear
clear
some clouds
clear
some clouds
cloudy
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
light rain
mod rain
rain shwrs
clear
clear
clear
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
clear
clear
clear
some clouds
cloudy
 km/h
15
WNW
25
W
35
W
10
NNW
20
NE
10
NE
5
NNW
10
N
15
WSW
10
NW
10
W
25
WSW
40
W
10
W
20
ESE
10
E
15
ENE
15
ENE
15
NE
15
NE
5
E
55
W
30
W
5
ESE
15
NNE
5
E
5
ESE
10
WNW
10
W
15
W
10
NW
5
W
15
W
10
NW
15
NNE
20
NE
 mm 
5
6
4
max°C
11
16
16
13
12
12
10
13
12
9
13
14
13
12
10
8
8
9
8
10
12
12
12
13
10
11
12
10
12
13
9
14
13
11
15
15
Moonrise
8:01
9:11
10:17
11:18
12:17
1:15
2:12
3:10
4:09
5:08
6:06
Moonset
9:53
10:33
11:05
11:33
11:58
12:22
12:46
1:11
1:39
2:12
2:50
3:34
Sunrise
6:37
6:37
6:39
6:39
6:41
6:41
6:41
6:43
6:43
6:43
6:45
6:45
Sunset
4:31
4:32
4:32
4:32
4:32
4:32
4:32
4:34
4:34
4:34
4:35
4:35
Today's sea temperature in Sirahama (Izu) is
19.9° C
(Statistics for 07 Dec 1981-2005 – mean: 20.4 max: 22.6 min: 18.9°C)
Issued (local time): 8 pm Sunday 07 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest