Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 2 am Saturday 30 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
20.5° C
(Which is 1.6°C colder than average for this time of year)

How big are the waves at Katahama today (30 May):

  • Morning surf: Morning surf (30 May, local time) - 2.5ft (0.7m), 11s period with E swell.
  • Afternoon surf: Afternoon surf (30 May, local time) - 2ft (0.6m), 11s period with E swell.
  • Evening surf: Evening surf (30 May, local time) - 2ft (0.6m), 11s period with E swell.

The current surf forecast for Katahama at 8AM is: 0.7m 11s primary swell from a East direction and 0.9m 5s secondary swell from a East-northeast direction (forecast issued at 02:00am May 30). An open ocean swell of 0.8m 7s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (30 May)2.5ft (0.7m)11s
Afternoon (30 May)2ft (0.6m)11s
Evening (30 May)2ft (0.6m)11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 24°C on Sat morning, min 19°C on Sun night). Wind will be generally light.

Saturday
30
Sunday
31
Monday
1
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)
1
1
1
1
0
0
0
1
1
1
1
2
1
1
2
2
2
1
2
0
0
0
0
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.6
E
10
0.7
E
10
0.6
E
11
0.7
E
11
0.6
E
11
0.6
E
11
0.6
E
11
0.6
E
11
0.6
E
10
0.6
E
10
0.7
E
10
0.6
S
14
0.8
S
13
1
S
13
1
S
12
1.1
S
12
1.2
S
12
0.5
E
10
1
S
11
0.5
E
10
0.5
E
10
0.8
S
10
0.5
E
10
0.5
E
10
Wave Graph
Metric surfscale
Energy kJ
68
92
83
114
85
85
83
82
78
77
104
142
225
316
292
336
393
51
233
50
47
121
46
45
Wind (km/h)
10
NNW
5
NNE
5
NE
0
SE
15
SSW
20
SSW
15
SW
10
W
5
WNW
0
N
5
NNE
5
ENE
10
SSE
15
SW
10
W
10
W
15
WSW
10
W
10
WNW
5
SW
15
SSW
20
SSW
15
SW
5
WSW
cross-off
cross-off
cross-off
glassy
cross
cross
cross
cross-off
glassy
glassy
glassy
glassy
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
High Tide
3:45AM1.55m
5:30PM1.43m
4:15AM1.58m
6:05PM1.45m
4:46AM1.60m
6:41PM1.47m
Low Tide
10:09PM0.90m
10:47AM0.16m
10:41PM0.94m
11:19AM0.10m
11:14PM0.95m
11:52AM0.07m
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:35
4:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:53
Temp °C
23
22
21
23
24
24
23
22
21
20
20
22
23
23
24
23
20
19
19
23
24
24
23
21
21
21
20
23
21
21
20
20
21
21
20
22
22
21
22
22
20
19
19
23
22
22
22
22
Swell 1
Height (m)
Direction
Period (s)
1
SW
7
0.8
SSW
7
0.8
SSW
7
0.8
SSW
7
0.7
E
6
0.7
SSW
7
0.6
E
11
0.6
E
11
0.6
E
10
0.6
E
10
0.7
E
10
0.6
E
10
0.8
S
13
1
S
13
1
S
12
1.1
S
12
1.2
S
12
1.3
S
11
1
S
11
1.1
S
11
1.1
S
14
1.3
S
14
1.6
S
13
2
SSW
14
Energy kJ
91
59
59
53
38
38
83
82
78
77
104
75
225
316
292
336
393
418
233
279
474
627
933
1421
Swell 2
Height (m)
Direction
Period (s)
0.7
W
5
0.7
E
10
0.6
E
11
0.7
E
11
0.7
SSW
7
0.7
E
6
0.6
E
6
0.5
SW
6
0.4
SW
6
0.3
SSE
6
0.5
SW
4
0.6
S
14
0.6
E
10
0.6
E
10
0.6
E
10
1
SSW
5
0.9
SSW
5
0.5
E
10
0.7
S
15
1
S
15
1
S
11
0.9
SSW
17
1
SSW
17
0.5
E
10
Energy kJ
28
92
83
114
40
38
25
21
14
6
8
142
74
73
71
56
36
51
221
447
227
419
550
45
Swell 3
Height (m)
Direction
Period (s)
0.6
E
10
0.6
W
5
0.4
W
5
0.6
E
6
0.6
E
11
0.6
E
11
0.1
SE
9
0.4
E
6
0.3
SSE
6
0.3
SW
6
0.4
S
15
0.5
SW
6
0.4
SW
6
0.1
SE
12
0.3
SE
12
0.6
E
10
0.5
E
10
0.5
S
16
0.5
E
10
0.5
E
10
0.5
E
10
0.8
S
10
0.5
E
10
0.3
SE
11
Energy kJ
68
18
7
25
85
85
3
9
6
6
70
17
12
6
22
75
51
127
50
50
47
121
46
20
Wind waves
Height (m)
Direction
Period (s)
0.4
NE
4
0.9
ENE
5
0.7
SW
6
0.4
WSW
3
0.4
WSW
4
0.4
WSW
4
0.7
WSW
6
0.5
SW
3
1.1
SSW
5
Energy kJ
4
36
42
4
5
6
34
5
55
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
1
3
3
3
3
Distance (km)
2
2
2
6
6
65
65
6
6
6
2
2
65
6
2
2
2
2
2
6
65
65
2
2
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
1
3
3
3
3
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
2
2
1
2
1
1
2
2
2
3
3
3
3
3
4
4
4
3
4
4
4
Header Global
Rating
(10 max)
5
4
5
5
5
5
5
5
6
8
7
7
7
7
6
6
5
5
5
5
5
5
5
4
  • 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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