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 05:09 AM and sunset is at 06:16 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 19°C on Sun morning, min 15°C on Sat night). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 75mm), heaviest during Thu night. Cool air temperatures (max 19°C on Wed morning, min 12°C on Thu night). Winds increasing (calm on Thu morning, fresh winds from the NNE by Thu night).

Days 7–9 Weather Summary

Heavy rain (total 31mm), heaviest during Fri night. Very mild (max 16°C on Sun afternoon, min 10°C on Fri night). Winds decreasing (fresh winds from the NNE on Fri morning, calm by Sun night).

Days 10–12 Weather Summary

Heavy rain (total 23mm), heaviest during Tue night. Warm (max 21°C on Wed morning, min 15°C on Mon night). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sun
3
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
6:10PM1.65m
6:58PM1.59m
7:51PM1.50m
6:08AM1.50m
8:52PM1.38m
6:31AM1.46m
10:13PM1.27m
6:54AM1.39m
00:15AM1.23m
7:20AM1.28m
1:44AM1.26m
9:13AM1.13m
2:17AM1.28m
12:53PM1.12m
2:40AM1.31m
2:24PM1.23m
3:02AM1.35m
3:22PM1.35m
3:24AM1.40m
4:09PM1.43m
3:47AM1.46m
4:51PM1.48m
4:10AM1.51m
5:29PM1.49m
4:33AM1.54m
Low Tide
11:18AM-0.02m
11:42PM0.66m
11:56AM-0.09m
00:15AM0.81m
12:37PM-0.10m
00:46AM0.95m
1:21PM-0.04m
1:16AM1.07m
2:11PM0.07m
1:49AM1.16m
3:14PM0.21m
3:01AM1.21m
4:40PM0.35m
7:32AM1.13m
6:19PM0.43m
8:08AM0.95m
7:37PM0.48m
8:38AM0.75m
8:32PM0.52m
9:08AM0.55m
9:14PM0.57m
9:39AM0.36m
9:48PM0.63m
10:10AM0.21m
10:18PM0.69m
10:41AM0.10m
10:45PM0.75m
Wave
height (m) 
direction
period (s) 
1.1
E
11
1.1
E
11
1.1
E
11
1.1
E
11
1.1
E
10
1.2
SE
14
1.2
SE
13
1.1
SE
13
1.1
SE
13
1.2
ESE
12
1.2
ESE
12
1.2
ESE
11
1.1
E
10
1
E
10
0.9
E
10
0.7
E
10
0.8
E
10
2
NE
6
3
ENE
7
3
NE
7
2.5
NE
6
2.1
SSW
8
1.7
SSW
8
1.8
SSW
8
1.4
NE
5
1.2
ENE
11
1
ENE
12
0.9
ENE
12
0.9
ENE
12
0.9
ENE
12
0.9
ENE
12
1.2
ENE
12
1.5
SSW
6
1.8
SSW
7
1.7
SSW
8
1.3
SSW
7
1.2
SSW
7
0.9
SSW
6
1
NE
4
0.9
NE
4
0.7
E
9
0.7
E
8
0.6
E
7
0.6
E
7
4
S
8
3.5
SSW
10
3
SSW
9
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
rain showers
clear
rain showers
rain showers
rain showers
part cloud
cloud
heavy rain
heavy rain
light rain
light rain
heavy rain
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
heavy rain
part cloud
cloud
light rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
rain showers
part cloud
part cloud
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
some clouds
some clouds
rain shwrs
clear
rain shwrs
rain shwrs
rain shwrs
some clouds
cloudy
heavy rain
heavy rain
light rain
light rain
heavy rain
cloudy
cloudy
cloudy
some clouds
clear
clear
clear
clear
some clouds
some clouds
some clouds
heavy rain
some clouds
cloudy
light rain
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
light rain
rain shwrs
some clouds
some clouds
 km/h
5
ESE
10
SSE
10
N
15
ENE
15
E
10
NNE
15
ENE
10
ENE
5
NW
15
ENE
10
ESE
5
NNE
15
SE
15
S
5
WNW
5
WSW
15
NE
25
NNE
35
NNE
30
NE
30
NNE
20
NE
15
NE
25
NE
20
NE
15
ENE
5
NE
5
S
15
SSW
10
W
15
SW
20
SW
15
SW
5
ENE
5
SSE
10
E
15
NNE
15
ENE
15
NNE
15
NE
10
E
5
NNE
10
E
5
S
55
SSW
30
WSW
35
WSW
 mm 
1
1
2
1
19
51
5
4
22
22
1
1
87
max°C
18
18
15
19
19
16
18
17
16
18
18
17
19
19
17
18
15
14
13
12
11
13
13
12
15
16
13
18
18
16
20
19
18
21
20
18
19
18
15
18
17
16
19
19
21
23
23
Moonrise
5:09
5:48
6:35
7:31
8:36
9:46
10:57
12:06
1:11
2:13
3:14
4:13
5:13
6:12
7:13
8:12
Moonset
7:23
8:40
9:55
11:03
12:01
12:49
1:28
2:01
2:29
2:54
3:19
3:44
4:11
4:40
5:14
Sunrise
5:09
5:07
5:07
5:05
5:05
5:03
5:01
5:01
5:00
4:58
4:58
4:56
4:54
4:54
4:52
4:52
Sunset
6:16
6:17
6:19
6:20
6:20
6:21
6:22
6:22
6:23
6:23
6:24
6:25
6:27
6:28
6:29
6:29
Today's sea temperature in Sirahama (Izu) is
17.0° C
(Statistics for 18 Apr 1981-2005 – mean: 18.8 max: 21.8 min: 16.7°C)
Issued (local time): 8 am Saturday 18 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest