Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 8 pm Monday 04 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
18.0° 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 5AM is: 0.5m 7s primary swell from a South direction (forecast issued at 08:00pm May 04). An open ocean swell of 1.8m 9s is not directed at the surf break, a second open ocean swell of 1.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (05 May)3.5ft (1.0m)4s
Afternoon (05 May)3ft (0.9m)6s
Evening (05 May)1.5ft (0.4m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 10mm), heaviest on Wed night. Warm (max 21°C on Thu afternoon, min 12°C on Mon night). Winds decreasing (strong winds from the WNW on Mon night, light winds from the E by Tue night).

Mon
4
Tuesday
5
Wednesday
6
Thursday
7
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
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
1
1
0
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.3
ESE
10
0.3
ESE
10
0.7
S
8
0.5
S
7
0.4
SE
10
1
E
4
1.1
E
5
0.9
ESE
6
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.8
SE
5
0.4
ESE
9
0.4
ESE
9
0.9
SE
6
0.9
SE
6
1.1
SE
6
1.1
SE
6
1.3
SE
6
1.3
SE
7
1.3
SE
7
1.1
SE
7
1
SE
7
0.9
SE
7
Wave Graph
Metric surfscale
Energy kJ
20
21
63
28
27
36
65
52
38
37
37
36
35
34
47
58
85
88
132
140
144
102
86
75
Wind (km/h)
40
WNW
40
WNW
35
W
25
WNW
20
ENE
25
ESE
20
ESE
15
SE
10
SE
5
E
10
NE
15
NNE
15
NNE
15
NE
15
NE
15
NE
15
ENE
15
ENE
15
NE
10
NE
10
NW
10
SW
20
SSW
25
SW
cross-off
cross-off
cross-off
off
cross-on
cross-on
on
on
on
cross-on
cross
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross-off
off
cross
cross
cross
High Tide
7:20PM1.41m
6:16AM1.56m
8:08PM1.37m
6:53AM1.48m
9:05PM1.32m
7:35AM1.37m
Low Tide
00:34AM0.84m
1:19PM0.09m
1:18AM0.90m
2:05PM0.17m
2:17AM0.96m
2:59PM0.28m
clear
part cloud
cloud
cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:52
4:52
4:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:32
6:34
6:35
6:36
1
3
4
2
Temp °C
17
15
14
12
14
16
16
17
17
17
16
15
15
16
17
16
15
15
16
16
16
19
20
21
9
7
6
7
9
10
11
14
14
15
14
12
11
13
14
14
13
14
15
15
15
19
17
17
Swell 1
Height (m)
Direction
Period (s)
2.5
SW
9
2.2
SW
9
1.8
SW
9
1.8
SW
9
1.8
WSW
9
1.3
SW
8
0.9
SW
8
0.8
SW
8
0.7
SW
8
0.6
SW
8
0.4
ESE
10
0.8
SE
5
0.7
SE
5
0.6
SE
5
0.4
ESE
9
0.9
SE
6
1.1
SE
6
0.4
ESE
9
0.4
ESE
9
1.3
SE
7
1.3
SE
7
1.1
SE
7
1
SE
7
0.9
SE
7
Energy kJ
1132
766
525
492
513
224
112
90
60
36
37
30
24
23
33
58
85
32
32
140
144
102
86
75
Swell 2
Height (m)
Direction
Period (s)
0.3
ESE
10
0.3
ESE
10
0.7
S
8
0.5
S
7
0.5
S
7
0.6
W
5
0.4
WNW
5
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
SW
7
0.4
ESE
10
0.4
ESE
9
0.4
ESE
9
0.2
WSW
6
0.4
ESE
9
0.5
ESE
9
0.1
SW
5
0.1
SW
7
0.5
ESE
9
0.1
W
7
0.4
ESE
9
0.5
ESE
9
0.5
ESE
10
Energy kJ
20
21
63
28
27
20
9
38
38
37
19
36
35
34
4
33
48
1
2
42
1
33
50
56
Swell 3
Height (m)
Direction
Period (s)
0.3
ESE
10
0.4
SE
10
0.3
ESE
10
0.4
SE
10
0.4
S
7
0.4
SE
10
0.2
W
5
0.2
SSE
7
0.3
SSE
7
0.4
SSE
6
0.3
SSE
6
0.3
SSE
6
0.3
SW
6
0.2
WSW
6
0.1
SW
6
0.1
SW
6
0.1
W
7
0.1
W
7
0.1
W
7
0.1
W
6
0.1
W
6
0.1
W
6
Energy kJ
21
27
21
27
15
25
2
5
9
13
8
7
6
4
1
1
1
1
1
1
1
1
Wind waves
Height (m)
Direction
Period (s)
1.6
WNW
6
1.8
WNW
6
1.9
WNW
6
1.6
WNW
6
1.6
WNW
6
1
E
4
1.1
E
5
0.9
ESE
6
0.8
ESE
4
0.8
ESE
5
0.8
SE
5
0.4
ENE
3
0.9
SE
6
1.1
SE
6
1.3
SE
6
0.2
NNE
2
Energy kJ
172
200
238
166
185
36
65
52
27
28
30
3
47
88
132
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
4
2
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
351
103
104
2
13
94
104
104
208
13
13
13
13
13
208
13
13
334
13
2
2
6
65
208
Best forecast wave conditions in Shizuoka
Rating
(10 max)
2
3
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
4
4
2
3
2
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
2
2
Header Global
Rating
(10 max)
5
5
4
5
5
4
5
5
5
5
5
4
5
5
6
5
5
9
5
9
5
9
5
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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