Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 8 am 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 1.9°C colder than average for this time of year)

How big are the waves at Katahama today?

The current surf forecast for Katahama at 3PM is: 0.3m 10s primary swell from a East-southeast direction (forecast issued at 08:00am May 04). An open ocean swell of 3.5m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (04 May)1.5ft (0.4m)10s
Afternoon (04 May)1ft (0.3m)10s
Evening (04 May)1ft (0.3m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Mon morning. Warm (max 22°C on Mon morning, min 12°C on Mon night). Winds decreasing (strong winds from the WSW on Mon afternoon, calm by Tue night).

Monday
4
Tuesday
5
Wednesday
6
Thu
7
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
12 AM
3 AM
Rating
(10 max)
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
1
1
0
0
0
0
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><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.4
ESE
9
0.4
ESE
10
0.4
ESE
10
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.6
S
8
0.4
SE
10
0.4
SE
10
0.4
SE
10
1.1
E
6
0.9
E
6
0.5
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.7
SE
6
0.7
SE
6
0.5
ESE
9
0.5
ESE
9
0.7
SE
6
0.7
SE
6
0.5
ESE
9
0.5
ESE
9
Wave Graph
Metric surfscale
Energy kJ
29
31
32
20
20
21
41
29
27
26
91
66
54
37
37
36
35
34
49
48
33
32
47
46
Wind (km/h)
35
WSW
30
WSW
35
W
40
WSW
40
WNW
40
WNW
35
WNW
20
WNW
15
E
25
SE
20
SE
15
SE
10
SE
5
E
5
NNE
10
NNE
15
NNE
15
NE
10
ENE
10
ESE
10
SE
5
ESE
5
ENE
10
NE
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-on
on
on
on
on
glassy
glassy
cross-off
cross-off
cross
cross
on
on
cross-on
cross
cross
High Tide
5:43AM1.59m
7:20PM1.41m
6:16AM1.56m
8:08PM1.37m
6:53AM1.48m
9:05PM1.32m
Low Tide
12:39PM0.05m
00:34AM0.84m
1:19PM0.09m
1:18AM0.90m
2:05PM0.17m
2:17AM0.96m
light rain
light rain
part cloud
part cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
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
4
2
Temp °C
20
18
22
21
17
15
13
12
14
16
16
17
17
16
16
15
15
17
18
18
17
17
16
16
16
14
16
13
8
6
5
8
11
10
11
14
14
15
15
13
12
13
16
17
17
18
16
15
Swell 1
Height (m)
Direction
Period (s)
0.4
ESE
9
0.4
ESE
10
0.4
ESE
10
0.3
ESE
10
2.5
SW
9
0.3
ESE
10
0.6
S
8
1.8
SW
9
1.8
WSW
9
1.4
WSW
8
1
SW
8
0.8
SW
8
0.7
SW
8
0.6
SW
8
0.7
SE
5
0.4
ESE
10
0.7
SE
6
0.7
SE
6
0.7
SE
6
0.7
SE
6
0.7
SE
6
0.7
SE
6
0.5
SE
5
0.6
SE
5
Energy kJ
29
31
32
20
1010
21
41
470
475
267
129
93
60
46
24
36
30
31
31
31
31
31
14
18
Swell 2
Height (m)
Direction
Period (s)
0.3
ESE
9
0.2
E
10
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.5
S
8
0.4
SE
10
0.4
SE
10
0.5
W
5
0.4
SE
10
0.5
ESE
10
0.4
ESE
10
0.5
SW
7
0.4
SW
7
0.4
ESE
9
0.4
ESE
9
0.5
ESE
9
0.5
ESE
9
0.4
ESE
9
0.4
ESE
9
0.5
ESE
9
0.5
ESE
9
Energy kJ
17
7
20
20
21
29
27
26
13
24
54
37
27
13
35
34
49
48
33
32
47
46
Swell 3
Height (m)
Direction
Period (s)
0.3
E
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.3
W
4
0.2
W
4
0.2
SSE
7
0.4
ESE
10
0.3
SSE
6
0.3
SW
7
0.3
SW
6
0.2
WSW
6
0.1
SW
6
0.3
SSW
5
0.1
W
7
0.3
SSW
5
0.1
SW
7
Energy kJ
17
27
26
25
3
1
5
37
8
7
6
4
2
5
1
4
2
Wind waves
Height (m)
Direction
Period (s)
4
SW
9
3.5
SW
10
3.5
SW
10
3.5
WSW
9
1.7
WNW
6
3
WSW
9
3
WSW
9
1.5
WNW
6
1.5
WNW
6
0.4
E
5
1.1
E
6
0.9
E
6
0.7
ESE
5
0.7
ESE
5
0.7
SE
5
0.2
NNE
2
0.4
NE
3
0.3
SSW
5
0.2
SSW
5
Energy kJ
2722
2408
2129
2048
215
1406
1181
148
154
7
91
66
23
20
23
1
2
4
2
Nearest Offshore or Glassy
Rating
(10 max)
3
2
4
1
2
1
1
2
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
351
334
334
619
373
103
351
2
13
94
104
208
208
13
13
148
13
13
13
13
66
13
13
13
Best forecast wave conditions in Shizuoka
Rating
(10 max)
2
3
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
4
1
2
3
1
2
3
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
4
4
4
4
5
5
5
4
5
4
5
5
5
5
5
5
5
5
6
5
9
9
9
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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