Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 2 am Friday 22 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
20.3° C
(Which is 1.1°C colder than average for this time of year)

How big are the waves at Katahama today?

The current surf forecast for Katahama at 9AM is: 1.2m 6s primary swell from a East direction and 0.4m 10s secondary swell from a East-southeast direction (forecast issued at 02:00am May 22). An open ocean swell of 1.7m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (22 May)4ft (1.2m)6s
Afternoon (22 May)3.5ft (1.0m)6s
Evening (22 May)--

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 3mm), mostly falling on Sat night. Warm (max 21°C on Sun afternoon, min 15°C on Fri night). Winds decreasing (fresh winds from the ENE on Fri night, light winds from the ENE by Sun night).

Friday
22
Saturday
23
Sunday
24
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
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1
E
10
1.2
E
5
1.1
E
5
1.2
E
6
1.1
E
6
1
E
6
1.5
E
7
1.8
E
8
1.8
E
8
1.8
E
9
1.9
E
9
2.2
E
7
2
E
7
2
E
7
1.9
E
6
1.9
E
6
1.8
E
6
1.7
E
6
1.6
E
6
1.6
E
7
1.6
ESE
7
1.4
ESE
7
1.3
ESE
8
1.2
ESE
8
Wave Graph
Metric surfscale
Energy kJ
192
60
61
89
82
66
0
0
0
0
0
0
0
373
290
264
239
225
220
247
259
208
191
170
Wind (km/h)
15
ESE
20
NE
25
NE
25
NE
20
NE
25
NE
25
ENE
30
ENE
30
ENE
25
NE
25
NE
25
NE
25
ENE
20
ENE
20
ENE
25
ENE
25
ENE
20
NE
20
NE
20
ENE
15
E
10
ESE
10
ESE
10
ESE
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-on
on
cross-on
cross-on
High Tide
9:27PM1.38m
7:59AM1.32m
10:34PM1.36m
9:10AM1.19m
11:45PM1.37m
11:03AM1.10m
Low Tide
3:01AM0.98m
3:17PM0.34m
4:32AM0.95m
4:21PM0.47m
6:08AM0.87m
5:34PM0.58m
heavy rain
heavy rain
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
light rain
part cloud
part cloud
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:39
4:39
4:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:47
6:49
13
16
2
1
2
Temp °C
19
17
17
17
18
19
18
16
15
15
15
15
16
18
19
18
17
17
17
19
20
21
20
20
19
15
14
14
16
16
14
10
9
10
10
10
11
14
16
14
13
14
14
17
18
20
19
20
Swell 1
Height (m)
Direction
Period (s)
2.1
SSW
8
1.9
SSW
8
1.9
SSW
8
1.7
SW
8
1.4
SW
8
1.3
SSW
8
1.1
SW
8
0.9
SW
8
0.7
SW
7
0.6
SSW
7
0.4
SSW
7
0.4
SW
7
0.4
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
6
0.9
SE
7
0.5
E
9
1.3
ESE
8
1.2
ESE
8
Energy kJ
493
403
425
362
242
187
129
82
54
34
19
12
12
2
2
2
2
2
2
65
43
191
170
Swell 2
Height (m)
Direction
Period (s)
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.4
ESE
10
0.5
ESE
10
0.4
ESE
10
0.2
S
6
0.5
E
10
0.4
E
10
Energy kJ
54
54
54
37
52
31
3
47
29
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1
E
10
1.2
E
5
1.1
E
5
1.2
E
6
1.1
E
6
1
E
6
1.5
E
7
1.8
E
8
1.8
E
8
1.8
E
9
1.9
E
9
2.2
E
7
2
E
7
2
E
7
1.9
E
6
1.9
E
6
1.8
E
6
1.7
E
6
1.6
E
6
1.6
E
7
1.6
ESE
7
1.4
ESE
7
Energy kJ
192
60
61
89
82
66
208
391
465
487
554
434
377
373
290
264
239
225
220
247
259
208
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
2
2
2
1
1
1
1
2
1
1
1
2
1
1
1
2
2
1
1
1
1
Distance (km)
94
13
13
13
13
13
373
351
373
415
415
661
661
747
150
104
103
103
13
13
104
104
103
103
Best forecast wave conditions in Shizuoka
Rating
(10 max)
3
2
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
3
2
2
2
2
2
1
1
1
1
2
1
1
1
2
1
1
3
2
2
1
1
2
3
Header Global
Rating
(10 max)
5
5
5
4
5
7
7
7
6
6
6
5
6
7
8
8
7
6
5
5
5
5
6
6
  • 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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