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 04:36 PM.

Days 1–4 Weather Summary

Moderate rain (total 18mm), heaviest on Wed morning. Cool air temperatures (max 16°C on Sun afternoon, min 5°C on Mon night). Wind will be generally light.

Days 5–7 Weather Summary

Heavy rain (total 37mm), heaviest during Wed afternoon. Cool air temperatures (max 16°C on Wed afternoon, min 6°C on Fri night). Mainly strong winds.

Days 8–10 Weather Summary

Moderate rain (total 12mm), heaviest on Tue morning. Very mild (max 10°C on Mon morning, min 5°C on Sun night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Very mild (max 13°C on Thu afternoon, min 7°C on Wed night). Winds decreasing (fresh winds from the W on Wed night, calm by Fri afternoon).

Sun
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Fri
2
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
4:41PM1.54m
7:17AM1.58m
5:16PM1.53m
7:52AM1.57m
5:55PM1.51m
8:26AM1.54m
6:38PM1.47m
9:00AM1.49m
7:28PM1.41m
9:33AM1.45m
8:29PM1.33m
10:08AM1.41m
9:49PM1.24m
10:44AM1.39m
11:36PM1.20m
11:24AM1.39m
1:37AM1.24m
12:12PM1.41m
3:10AM1.35m
1:05PM1.45m
4:16AM1.46m
2:01PM1.49m
5:12AM1.55m
Low Tide
11:51PM-0.01m
12:08PM1.09m
00:26AM0.01m
12:47PM1.07m
1:03AM0.06m
1:28PM1.03m
1:42AM0.16m
2:13PM0.98m
2:24AM0.29m
3:07PM0.90m
3:10AM0.45m
4:09PM0.80m
4:04AM0.63m
5:20PM0.66m
5:08AM0.81m
6:31PM0.50m
6:22AM0.96m
7:37PM0.31m
7:40AM1.07m
8:36PM0.13m
8:37AM1.13m
9:33PM-0.01m
9:51AM1.15m
Wave
height (m) 
direction
period (s) 
1.2
SE
7
1.3
SE
8
2.2
NE
6
1.6
E
9
1.6
E
10
1.6
NE
5
1.3
ENE
5
0.9
ESE
8
1.1
SE
5
2.5
S
7
2.1
SSW
8
1.6
SSW
8
1.4
SSW
7
2.3
W
6
3.5
W
8
3
W
8
1.8
W
8
1.4
E
14
1.2
E
13
1.2
E
13
1.3
E
13
1.2
E
13
1.2
E
13
1.4
E
13
1.2
E
13
1.4
NE
4
1.4
ESE
7
1.1
ENE
14
1.4
E
11
1.6
E
11
2
W
6
2.2
W
6
1.6
W
6
2.3
W
6
1.8
W
7
1.1
E
12
light rain
part cloud
part cloud
cloud
clear
part cloud
part cloud
rain showers
heavy rain
heavy rain
light rain
cloud
light rain
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
some clouds
some clouds
cloudy
clear
some clouds
some clouds
rain shwrs
heavy rain
heavy rain
light rain
cloudy
light rain
some clouds
clear
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
clear
some clouds
some clouds
some clouds
rain shwrs
rain shwrs
some clouds
clear
clear
clear
clear
clear
clear
clear
some clouds
 km/h
15
WSW
10
ENE
25
NE
20
NE
20
NE
20
NE
20
NE
15
NE
5
NE
35
S
10
W
0
NE
5
E
25
W
30
W
10
W
10
NNE
5
NE
10
ENE
15
NNE
15
NNE
15
NE
15
NNE
20
NNE
15
NE
15
NNE
15
NNW
10
W
5
WNW
10
WNW
25
WSW
20
WNW
10
W
25
W
10
NW
10
NNE
 mm 
5
1
12
35
1
1
1
11
max°C
16
16
10
10
9
8
10
11
16
16
15
15
13
13
11
11
7
7
8
7
9
9
6
10
10
8
10
11
10
12
12
10
12
13
9
11
Moonrise
8:34
9:12
9:45
10:14
10:41
11:07
11:34
12:03
12:37
1:18
2:08
Moonset
5:22
6:23
7:26
8:28
9:31
10:33
11:37
12:43
1:53
3:07
4:22
5:36
Sunrise
6:47
6:47
6:48
6:48
6:48
6:48
6:48
6:50
6:50
6:50
6:50
6:50
Sunset
4:36
4:37
4:37
4:37
4:37
4:38
4:38
4:39
4:40
4:40
4:42
4:43
Today's sea temperature in Sirahama (Izu) is
18.6° C
(Statistics for 21 Dec 1981-2005 – mean: 19.5 max: 21.0 min: 17.9°C)
Issued (local time): 2 pm Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest