Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 2 pm Tuesday 19 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 1.2°C colder than average for this time of year)

How big are the waves at Katahama today?

The current surf forecast for Katahama at 6PM is: 0.6m 11s primary swell from a Southeast direction and 0.5m 9s secondary swell from a East direction, 0.5m 3s secondary swell from a Southwest direction (forecast issued at 02:00pm May 19). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (19 May)--
Afternoon (19 May)2ft (0.6m)11s
Evening (19 May)2ft (0.6m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 81mm), heaviest during Thu night. Warm (max 24°C on Wed morning, min 16°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the SW by Thu afternoon).

Tue
19
Wednesday
20
Thursday
21
Fri
22
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
6 AM
9 AM
Rating
(10 max)
0
0
0
1
1
1
1
0
0
0
1
1
1
0
1
0
0
0
0
0
0
0
0
0
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)
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
10
0.7
SE
11
0.8
SE
10
0.9
SE
10
0.9
SE
10
0.9
SE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
9
0.7
ESE
10
0.7
ESE
10
0.6
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.9
E
10
1.3
E
5
1.7
SW
8
Wave Graph
Metric surfscale
Energy kJ
73
73
72
69
117
120
148
145
145
125
122
120
115
103
100
80
81
61
54
55
55
149
95
0
Wind (km/h)
20
SW
20
SW
20
SW
15
WSW
10
WSW
10
W
10
W
15
WSW
20
SW
20
SW
10
WSW
0
W
0
W
10
SW
5
SW
15
SW
25
WSW
35
SW
30
WSW
15
SW
15
NE
30
NE
30
NE
30
NE
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
glassy
glassy
cross
glassy
cross
cross-off
cross
cross-off
cross
cross
cross
cross
cross
High Tide
7:42PM1.43m
6:25AM1.53m
8:30PM1.40m
7:08AM1.44m
9:27PM1.38m
7:59AM1.32m
Low Tide
12:51PM0.07m
00:54AM0.93m
1:34PM0.12m
1:49AM0.96m
2:22PM0.22m
3:01AM0.98m
part cloud
clear
clear
cloud
part cloud
clear
clear
clear
part cloud
cloud
light rain
rain showers
light rain
light rain
light rain
light rain
mod rain
heavy rain
mod rain
mod rain
heavy rain
heavy rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:41
4:39
4:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:46
6:46
4
2
1
2
2
4
6
13
9
7
15
13
3
Temp °C
23
23
22
21
20
20
20
23
24
21
21
21
21
21
21
21
22
21
22
21
19
16
16
18
21
21
21
22
21
21
21
23
23
20
23
25
25
24
24
22
21
19
21
22
20
12
12
13
Swell 1
Height (m)
Direction
Period (s)
0.6
E
9
0.6
E
9
0.6
SE
11
0.6
SE
10
0.7
SE
11
0.8
SE
10
0.9
SE
10
0.9
SE
10
0.9
SE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
1.5
SSW
6
0.7
ESE
10
0.7
ESE
10
0.6
ESE
10
0.5
ESE
10
0.5
ESE
10
2.3
SW
8
2
SSW
8
1.9
SW
8
1.7
SW
8
Energy kJ
60
63
72
69
117
120
148
145
145
125
122
120
115
103
165
80
81
61
54
55
636
489
473
390
Swell 2
Height (m)
Direction
Period (s)
0.6
SE
11
0.6
SE
11
0.5
E
9
0.5
E
9
0.5
E
10
0.5
E
10
0.1
S
7
0.1
S
7
0.1
S
7
0.2
S
7
0.2
S
7
0.2
S
6
0.2
S
6
0.8
ESE
9
0.5
ESE
10
0.4
ESE
10
Energy kJ
73
73
41
42
48
54
1
1
1
4
3
3
3
100
55
37
Swell 3
Height (m)
Direction
Period (s)
0.1
S
8
0.1
S
8
0.1
S
8
0.2
S
7
Energy kJ
1
1
1
4
Wind waves
Height (m)
Direction
Period (s)
0.3
SW
2
0.4
SW
3
0.5
SW
3
0.4
SW
3
0.3
SW
3
0.3
SSW
3
0.2
WSW
3
0.4
SSW
4
0.4
SW
3
0.5
S
4
0.5
S
4
0.5
S
4
0.5
S
4
1
S
5
1.7
SSW
7
2.1
SSW
7
2.5
SW
8
3
SW
8
2.5
SW
8
0.9
E
10
1.3
E
5
1.6
E
6
Energy kJ
1
2
5
2
1
2
1
4
2
7
8
8
8
58
268
478
721
1060
823
149
95
209
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
2
2
3
2
Distance (km)
6
6
382
236
65
2
2
2
2
6
65
355
6
6
6
6
2
6
2
65
65
2
94
13
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
3
2
2
3
2
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
2
1
1
1
1
1
2
2
1
2
2
2
2
2
2
2
3
3
4
3
2
Header Global
Rating
(10 max)
4
4
4
4
4
4
4
4
5
5
5
5
4
5
4
5
5
4
4
5
4
4
4
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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