Shimoda Yamatoken (Tatado Hama) Surf Break

Lat Long: 34.66° N 138.93° E

Shimoda Yamatoken (Tatado Hama) 48 hour detailed Surf Forecast

Issued: 2 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Shimoda Yamatoken (Tatado Hama) sea temperature is
26.6° C
0.8° 

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 (21 Aug):

  • Afternoon surf: Afternoon surf (21 Aug, local time) - 1.5ft (0.4m), 11s period with SE swell.
  • Evening surf: Evening surf (21 Aug, local time) - 1.5ft (0.5m), 9s period with E swell.

The current surf forecast for Shimoda Yamatoken (Tatado Hama) at 9PM is: 0.5m 9s primary swell from a East direction and 0.4m 4s secondary swell from a South-southeast direction (forecast issued at 02:00pm August 21). An open ocean swell of 0.9m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Aug)--
Afternoon (21 Aug)1.5ft (0.4m)11s
Evening (21 Aug)1.5ft (0.5m)9s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Fri afternoon. Warm (max 28°C on Fri afternoon, min 25°C on Fri night). Wind will be generally light.

Fri
21
Saturday
22
Sunday
23
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)
0
0
0
0
1
1
1
1
0
0
0
0
0
0
0
0
0
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)
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.5
E
9
0.6
ESE
10
0.6
ESE
10
0.7
ESE
10
0.7
ESE
10
0.8
E
10
0.8
E
11
0.3
SE
11
0.2
ESE
10
0.4
SE
11
0.3
ESE
11
0.4
SE
11
0.4
SE
11
0.4
SE
13
0.4
ESE
12
0.5
E
12
0.5
E
12
Wave Graph
Metric surfscale
Energy kJ
30
30
30
43
74
75
100
100
131
146
18
11
30
23
29
29
44
48
73
73
Wind (km/h)
15
SW
15
SSW
10
SW
10
WSW
10
WSW
10
WSW
10
W
10
WSW
15
SW
15
SW
10
WSW
10
W
5
WNW
5
N
10
NE
15
NE
15
ENE
15
E
10
E
5
ENE
Wind State
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross
High Tide
12:24PM1.22m
9:27PM1.49m
4:24PM1.33m
10:24PM1.42m
4:14PM1.45m
Low Tide
3:08PM1.19m
6:04AM0.53m
4:55PM1.33m
7:38AM0.47m
8:58PM1.30m
part cloud
thunderstorm
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:25
6:24
6:22
 mm
1
1
1
1
1
1
Temp °C
28
28
26
26
25
25
25
27
28
27
27
26
26
25
25
26
26
27
26
25
Feels °C
30
30
29
30
28
28
28
30
30
30
31
30
30
29
28
28
28
30
30
29
  • 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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