Shimoda Yamatoken (Tatado Hama) Surf Break

Lat Long: 34.66° N 138.93° E

Shimoda Yamatoken (Tatado Hama) 48 hour detailed Surf Forecast

Issued: 8 am 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Shimoda Yamatoken (Tatado Hama) sea temperature is
25.8°C
0.3° 

Shimoda Yamatoken (Tatado Hama) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Shimoda Yamatoken (Tatado Hama) today (20 Sep):

  • Morning surf: Morning surf (20 Sep, local time) - 8ft (2.5m), 12s period with SE swell.
  • Afternoon surf: Afternoon surf (20 Sep, local time) - 8ft (2.5m), 11s period with SE swell.
  • Evening surf: Evening surf (20 Sep, local time) - 10ft (3.0m), 12s period with SSE swell.

The current surf forecast for Shimoda Yamatoken (Tatado Hama) at 5PM is: 3.0m 12s primary swell from a Southeast direction and 0.3m 13s secondary swell from a East direction (forecast issued at 08:00am September 20). An open ocean swell of 1.8m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Sep)8ft (2.5m)12s
Afternoon (20 Sep)8ft (2.5m)11s
Evening (20 Sep)10ft (3.0m)12s

Table - waves today at Shimoda Yamatoken (Tatado Hama). (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 243mm), heaviest during Mon night. Warm (max 29°C on Tue morning, min 22°C on Tue night). Mainly gales.

Sunday
20
Monday
21
Tuesday
22
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
1
1
1
2
2
2
2
0
!
!
!
!
0
!
0
2
1
2
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SE
12
2.5
SE
12
2.5
SE
12
2.5
SE
11
3
SE
12
3
SSE
12
3
SSE
12
3.5
SSE
13
3.5
SSE
13
4
SSE
13
4.5
SSE
13
5
S
13
6.5
S
14
8.5
SSE
14
2.3
SE
11
2.5
SE
10
1.2
SE
10
1.6
S
9
0.8
SE
9
0.6
SE
9
1.3
S
8
0.6
SE
8
Wave Graph
Metric surfscale
Energy kJ
1934
1775
1686
1651
2107
2241
2691
3636
4549
5517
7376
8213
16239
31039
1235
1406
279
431
99
49
223
41
Wind (km/h)
30
NE
30
NE
35
NE
30
NNE
30
NNE
35
NE
35
NNE
35
NE
35
NE
30
NE
30
NE
35
ENE
45
ENE
60
ENE
70
NNW
30
W
25
W
15
W
5
WNW
10
NE
25
NE
25
NE
Wind State
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross
cross
High Tide
3:03PM1.39m
9:00PM1.35m
3:26PM1.47m
00:43AM1.30m
3:48PM1.55m
Low Tide
5:17AM0.55m
7:23PM1.35m
7:02AM0.55m
9:04PM1.21m
8:19AM0.50m
heavy rain
mod rain
mod rain
heavy rain
mod rain
light rain
light rain
light rain
mod rain
mod rain
mod rain
heavy rain
thunderstorm
thunderstorm
heavy rain
heavy rain
rain showers
clear
clear
clear
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:30
5:30
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:44
5:42
 mm
16
7
8
13
7
2
3
5
6
9
7
25
38
29
69
12
1
Temp °C
23
24
24
23
23
23
23
23
23
24
24
24
26
26
26
25
26
27
29
28
27
25
Feels °C
22
23
23
22
22
21
21
21
21
23
23
23
23
21
19
25
27
30
34
31
25
24
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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