Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 8 pm Wednesday 27 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
20.0° C
(Which is 2.0°C colder than average for this time of year)

How big are the waves at Katahama today (28 May):

  • Morning surf: Morning surf (28 May, local time) - 2.5ft (0.8m), 9s period with ESE swell.
  • Afternoon surf: Afternoon surf (28 May, local time) - 2.5ft (0.8m), 8s period with E swell.
  • Evening surf: Evening surf (28 May, local time) - 2.5ft (0.7m), 8s period with E swell.

The current surf forecast for Katahama at 4AM is: 0.8m 9s primary swell from a East-southeast direction and 0.2m 5s secondary swell from a South direction, 0.4m 4s secondary swell from a South direction (forecast issued at 08:00pm May 27). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (28 May)2.5ft (0.8m)9s
Afternoon (28 May)2.5ft (0.8m)8s
Evening (28 May)2.5ft (0.7m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Wed night. Warm (max 30°C on Fri morning, min 20°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the W by Fri afternoon).

Wed
27
Thursday
28
Friday
29
Saturday
30
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
6 AM
9 AM
12 PM
3 PM
Rating
(10 max)
0
1
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
1
2
0
0
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.8
E
8
1
S
7
0.7
E
8
0.7
E
8
0.7
ESE
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.7
ESE
10
0.7
E
10
1.1
E
6
1.4
E
7
1.1
E
7
0.6
E
11
Wave Graph
Metric surfscale
Energy kJ
126
126
131
106
99
99
99
92
90
69
71
96
67
67
67
67
68
67
96
88
88
192
117
85
Wind (km/h)
10
S
5
SSW
10
S
10
ESE
15
ENE
15
NE
15
ENE
5
ENE
5
SSE
10
WSW
25
WSW
25
W
25
W
25
W
35
W
35
W
25
WNW
25
ENE
15
ENE
5
NE
5
NNE
5
E
10
SSE
15
SSE
cross-on
glassy
cross-on
on
cross-on
cross
cross
cross-on
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross
cross
glassy
glassy
on
cross-on
High Tide
3:27PM1.27m
2:48AM1.49m
4:14PM1.34m
3:17AM1.52m
4:54PM1.39m
3:45AM1.55m
Low Tide
8:49PM0.81m
9:43AM0.34m
9:33PM0.86m
10:16AM0.24m
10:09PM0.90m
10:47AM0.16m
cloud
cloud
light rain
cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
clear
clear
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:37
4:35
4:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:51
6:52
6:52
1
Temp °C
22
21
21
20
20
21
22
22
22
22
22
23
23
27
30
30
27
22
22
22
21
22
24
24
24
24
23
22
21
21
22
24
26
24
21
21
22
25
25
24
23
21
22
23
22
23
23
22
Swell 1
Height (m)
Direction
Period (s)
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
1
S
6
1
S
7
1.5
SSW
7
0.7
E
8
0.7
ESE
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
0.6
E
10
1
SW
7
0.9
SW
7
0.8
SW
7
0.6
SW
7
1.4
E
7
1.1
E
7
0.6
E
11
Energy kJ
126
126
131
106
99
99
99
78
89
249
71
96
67
67
67
67
68
88
75
54
37
192
117
85
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
0.2
S
5
0.4
S
4
0.5
S
5
0.6
S
5
0.8
E
8
1
SW
8
0.7
E
8
0.2
ESE
12
0.1
S
9
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.1
SE
13
0.6
E
10
0.7
WNW
5
0.7
E
10
0.6
E
11
0.6
SW
7
0.6
SW
7
0.4
SW
7
Energy kJ
19
19
18
2
6
11
20
92
111
69
15
2
15
15
15
15
6
67
28
88
83
38
31
17
Swell 3
Height (m)
Direction
Period (s)
0.2
S
5
0.2
S
5
0.2
S
5
0.2
ESE
13
0.2
ESE
13
0.2
ESE
13
0.2
ESE
13
0.5
SW
8
0.8
E
8
0.2
ESE
13
0.1
S
9
0.1
S
9
0.1
S
9
0.1
S
9
0.1
SE
9
0.1
SE
12
0.7
ESE
10
0.5
W
5
0.4
W
5
0.3
SSE
6
0.5
E
11
0.3
S
6
Energy kJ
2
2
2
18
18
17
17
28
90
16
2
2
2
2
3
6
96
13
7
8
59
7
Wind waves
Height (m)
Direction
Period (s)
0.4
S
4
0.5
ENE
3
0.5
ENE
3
1.9
SW
8
1.9
SW
7
1.7
SW
7
1.7
WSW
7
1.9
WSW
6
2.1
WSW
6
2
WSW
6
1.2
W
6
0.3
E
2
0.5
ENE
4
1.1
E
6
1.7
E
7
1.3
E
7
0.8
ESE
6
Energy kJ
5
5
7
407
392
309
294
233
300
272
91
1
9
88
274
154
53
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
2
1
1
1
2
1
3
2
1
1
2
1
2
1
Distance (km)
208
6
65
13
66
13
13
13
2
2
65
65
65
65
103
65
104
13
150
13
2
2
13
104
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
1
1
1
1
1
2
1
2
1
1
1
1
2
1
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
3
3
3
2
2
1
2
2
2
2
2
3
3
3
3
3
2
1
2
2
2
2
1
Header Global
Rating
(10 max)
7
7
9
7
6
6
8
9
9
7
9
7
7
6
5
5
5
5
5
4
5
5
5
5
  • 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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