Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 2 am Saturday 16 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
18.8° C
(Which is 2.0°C colder than average for this time of year)

How big are the waves at Katahama today?

The current surf forecast for Katahama at 7AM is: 0.8m 9s primary swell from a East direction and 0.4m 8s secondary swell from a East-southeast direction (forecast issued at 02:00am May 16). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (16 May)2.5ft (0.8m)9s
Afternoon (16 May)2.5ft (0.7m)9s
Evening (16 May)2.5ft (0.8m)8s

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 23°C on Mon morning, min 17°C on Sat night). Wind will be generally light.

Saturday
16
Sunday
17
Monday
18
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
0
0
0
0
1
1
1
1
1
0
0
0
1
1
1
1
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)
1
E
9
0.5
E
9
0.8
E
9
0.8
E
9
0.7
ESE
9
0.7
ESE
9
0.8
ESE
7
0.8
ESE
8
0.5
E
9
0.8
ESE
9
0.6
ESE
7
0.7
ESE
7
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
0.7
ESE
9
0.7
ESE
9
Wave Graph
Metric surfscale
Energy kJ
164
41
108
101
80
75
56
78
43
84
34
48
90
88
92
124
116
106
106
103
103
103
77
79
Wind (km/h)
5
ENE
10
NNE
10
NNE
10
E
15
SSE
15
S
10
S
5
SW
5
WNW
10
WNW
5
NNW
5
SE
10
S
15
S
15
S
5
WNW
10
NNE
5
NNE
0
SE
5
S
15
SSW
20
SSW
15
SW
10
WSW
cross
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
glassy
glassy
off
glassy
glassy
cross-on
cross-on
cross-on
glassy
cross-off
glassy
glassy
cross-on
cross
cross
cross
cross-off
High Tide
4:16AM1.56m
5:45PM1.44m
4:43AM1.59m
6:21PM1.45m
5:14AM1.60m
6:59PM1.44m
Low Tide
10:35PM0.80m
11:09AM0.11m
11:04PM0.84m
11:40AM0.06m
11:35PM0.87m
12:14PM0.05m
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:43
4:43
4:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:44
6:44
Temp °C
18
17
17
19
20
19
19
18
18
17
17
20
22
22
21
21
21
19
19
21
23
23
22
21
18
17
16
18
18
17
18
18
18
16
17
21
21
20
19
22
21
19
20
21
21
20
21
21
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
10
0.7
ESE
6
0.8
E
9
0.8
E
9
0.7
ESE
9
0.7
ESE
9
0.8
ESE
7
0.8
ESE
8
0.6
ESE
7
0.8
ESE
9
0.6
ESE
7
0.7
ESE
7
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
0.9
ESE
9
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
0.7
ESE
9
0.7
ESE
9
Energy kJ
24
39
108
101
80
75
56
78
31
84
34
48
90
88
92
124
116
106
106
103
103
103
77
79
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
11
0.5
E
9
0.4
ESE
8
0.4
ESE
8
0.4
ESE
8
0.5
E
8
0.3
E
9
0.2
E
9
0.5
E
9
0.2
SSE
10
0.4
ESE
10
0.4
ESE
9
0.3
SE
11
0.3
SE
10
0.1
SE
8
0.1
SE
7
0.1
SE
12
0.2
SSE
7
0.2
SSE
7
0.3
SE
7
Energy kJ
19
41
28
28
28
35
15
7
43
10
30
29
18
17
2
2
5
5
5
8
Swell 3
Height (m)
Direction
Period (s)
0.1
S
6
0.4
ESE
8
0.3
SE
11
0.3
SE
11
0.3
SE
12
0.3
SE
11
0.3
SE
11
0.2
SSE
10
0.2
SSE
10
0.1
SE
14
0.2
SSE
10
0.3
SE
11
0.1
SE
14
0.1
SE
7
0.1
SE
7
0.1
SE
11
0.1
SE
11
0.3
SE
10
Energy kJ
1
26
18
19
21
19
18
10
10
7
10
18
7
2
2
5
5
16
Wind waves
Height (m)
Direction
Period (s)
1
E
9
0.2
W
3
0.4
SW
3
0.4
SW
3
0.4
SW
3
Energy kJ
164
1
2
3
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
2
13
13
13
104
104
104
6
6
6
6
6
65
6
65
6
13
6
6
6
6
211
65
6
Best forecast wave conditions in Shizuoka
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
1
1
1
1
Header Global
Rating
(10 max)
6
5
5
5
5
5
4
5
6
5
5
5
4
5
6
9
9
7
4
4
5
8
7
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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