Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 8 am Monday 11 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Katahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Katahama sea temperature is
17.9° C
(Which is 2.5°C colder than average for this time of year)

How big are the waves at Katahama today?

The current surf forecast for Katahama at 5PM is: 0.9m 10s primary swell from a Southeast direction and 0.7m 5s secondary swell from a Southeast direction (forecast issued at 08:00am May 11). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (11 May)2.5ft (0.7m)10s
Afternoon (11 May)3ft (0.9m)10s
Evening (11 May)2.5ft (0.7m)10s

Table - waves today at Katahama. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 19°C on Mon morning, min 16°C on Mon night). Wind will be generally light.

Monday
11
Tuesday
12
Wednesday
13
Thu
14
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
12 AM
3 AM
Rating
(10 max)
0
0
0
0
0
0
1
2
2
1
0
0
1
1
2
2
2
1
0
0
2
2
2
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.9
SE
6
0.7
ESE
10
0.7
ESE
10
0.9
SE
10
0.9
SE
10
0.7
ESE
10
0.9
SE
8
1.2
SE
9
1.2
SE
9
1.2
SE
9
1.3
SE
9
1.2
SE
9
1.2
SE
9
1.2
SE
9
1.2
ESE
9
1.2
ESE
9
1.2
ESE
9
1.2
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
ESE
9
1.2
ESE
9
1.2
ESE
9
1.2
ESE
10
Wave Graph
Metric surfscale
Energy kJ
59
85
86
163
160
83
86
230
230
230
266
242
247
247
221
221
221
221
203
203
203
227
237
242
Wind (km/h)
5
NE
10
ESE
15
SSE
15
S
10
SSE
5
SE
0
WNW
5
NNW
5
NNE
10
ESE
15
SSE
15
SSE
5
SSE
5
SE
5
NE
5
N
5
NNE
5
E
10
SSE
10
SSE
5
SE
5
E
5
WNW
5
N
cross
cross-on
cross-on
cross-on
cross-on
on
glassy
glassy
glassy
cross-on
on
cross-on
cross-on
on
glassy
cross-off
glassy
cross-on
cross-on
cross-on
glassy
glassy
glassy
glassy
High Tide
2:06PM1.15m
2:29AM1.42m
3:08PM1.24m
3:00AM1.46m
3:55PM1.32m
Low Tide
8:25AM0.68m
7:56PM0.61m
9:07AM0.53m
8:50PM0.66m
9:42AM0.40m
9:32PM0.70m
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:47
4:46
4:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:39
6:39
6:40
Temp °C
18
19
19
19
19
18
18
17
16
18
19
19
19
18
17
16
16
18
19
19
19
18
17
17
18
18
17
17
18
18
19
17
16
17
17
17
18
17
17
15
15
17
17
17
18
17
17
16
Swell 1
Height (m)
Direction
Period (s)
0.9
SE
6
0.8
SE
6
0.7
ESE
10
0.9
SE
10
0.9
SE
10
0.7
SE
6
0.9
SE
8
1.2
SE
9
1.2
SE
9
1.2
SE
9
1.3
SE
9
1.2
SE
9
1.2
SE
9
1.2
SE
9
1.2
ESE
9
1.2
ESE
9
1.2
ESE
9
1.2
ESE
9
1.1
ESE
9
1.1
ESE
9
1.1
ESE
9
1.2
ESE
9
1.2
ESE
9
1.2
ESE
10
Energy kJ
54
38
86
163
160
32
86
230
230
230
266
242
247
247
221
221
221
221
203
203
203
227
237
242
Swell 2
Height (m)
Direction
Period (s)
0.6
ESE
9
0.7
ESE
10
0.7
ESE
10
0.6
ESE
9
0.1
S
9
0.1
S
7
0.1
S
7
0.2
S
7
0.2
S
6
0.1
S
7
0.1
S
7
0.1
S
7
Energy kJ
59
85
83
68
2
1
1
4
3
1
1
1
Swell 3
Height (m)
Direction
Period (s)
0.1
S
9
Energy kJ
1
Wind waves
Height (m)
Direction
Period (s)
0.7
SE
5
0.7
SE
5
Energy kJ
28
29
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
1
1
2
1
1
1
Distance (km)
6
208
208
208
208
65
2
2
2
13
85
85
104
2
2
2
2
13
104
104
6
2
2
2
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
1
2
2
2
1
1
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
2
1
2
2
2
2
2
1
1
2
2
2
2
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
6
5
8
6
5
4
5
5
5
5
5
5
9
9
9
9
9
7
5
7
7
6
6
7
  • 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

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