Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 2 am Sunday 03 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
18.1° C
(Which is 1.7°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: 0.5m 10s primary swell from a East-southeast direction (forecast issued at 02:00am May 03). An open ocean swell of 0.7m 6s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (03 May)1.5ft (0.5m)10s
Afternoon (03 May)1.5ft (0.5m)10s
Evening (03 May)4.5ft (1.3m)6s

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 34mm), heaviest during Sun night. Warm (max 21°C on Sun night, min 12°C on Mon night). Winds decreasing (near gales from the SSW on Sun night, calm by Mon night).

Sunday
3
Monday
4
Tuesday
5
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
0
0
0
0
0
0
0
0
0
0
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>
Wave
Height (m)
Direction
Period (s)
0.5
ESE
9
0.5
ESE
9
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
1
SSW
6
1.3
SSW
6
0.5
ESE
9
0.5
E
9
0.4
ESE
10
0.4
ESE
10
0.3
ESE
10
0.3
ESE
10
0.4
ESE
10
0.7
S
7
0.3
ESE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
ESE
10
1.1
E
5
1
E
5
0.9
ESE
5
Wave Graph
Metric surfscale
Energy kJ
47
49
54
54
52
52
58
123
50
44
30
32
19
20
35
51
21
27
27
39
39
61
53
38
Wind (km/h)
10
WNW
5
NNW
0
ESE
5
SE
20
SSW
20
SSW
20
SSW
20
SSW
30
SSW
55
SSW
30
W
30
W
35
W
40
W
40
WNW
40
WNW
35
W
20
NW
5
NNE
5
S
10
SSE
10
SE
15
ESE
15
ENE
cross-off
glassy
glassy
glassy
cross
cross
cross
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
glassy
cross-on
on
on
cross-on
cross
High Tide
5:13AM1.59m
6:40PM1.44m
5:43AM1.59m
7:20PM1.41m
6:16AM1.56m
8:08PM1.37m
Low Tide
11:28PM0.74m
12:03PM0.05m
11:59PM0.79m
12:39PM0.05m
00:34AM0.84m
1:19PM0.09m
part cloud
part cloud
part cloud
part cloud
clear
cloud
cloud
light rain
mod rain
mod rain
heavy rain
cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:54
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:32
6:34
4
8
8
14
Temp °C
19
18
18
19
20
20
19
19
19
21
19
19
20
20
17
15
13
12
14
16
16
17
17
17
17
17
18
18
18
18
17
18
16
14
15
13
13
12
9
6
5
7
12
14
13
13
14
15
Swell 1
Height (m)
Direction
Period (s)
1
SW
8
0.9
SW
7
0.8
SW
6
0.6
SW
6
0.5
ESE
10
0.5
ESE
10
0.5
ESE
9
0.5
ESE
9
0.5
ESE
9
0.5
E
9
0.4
ESE
10
0.4
ESE
10
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
0.7
S
7
0.3
ESE
10
0.4
SE
10
1.7
SW
9
1.4
WSW
8
1.1
SW
8
0.8
SW
8
0.7
SW
8
0.6
SW
8
Energy kJ
114
79
49
30
52
52
50
50
50
44
30
32
19
20
20
51
21
27
439
267
167
90
57
35
Swell 2
Height (m)
Direction
Period (s)
0.5
ESE
9
0.5
ESE
9
0.5
ESE
10
0.5
ESE
10
0.1
S
6
0.2
WSW
6
0.3
ESE
11
0.2
E
9
0.4
ESE
10
0.3
ESE
10
0.4
SE
10
0.4
SE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
Energy kJ
47
49
54
54
1
4
22
7
35
21
27
26
39
38
38
38
Swell 3
Height (m)
Direction
Period (s)
0.2
S
7
0.2
S
6
0.3
S
7
0.3
S
6
0.3
E
10
0.2
W
6
0.4
ESE
10
0.2
SSE
7
0.3
W
4
0.2
SSE
7
0.3
SSE
6
Energy kJ
3
3
8
7
17
3
39
5
3
5
8
Wind waves
Height (m)
Direction
Period (s)
0.4
WNW
4
0.3
NW
4
0.7
SW
6
0.9
SSW
5
1
SSW
6
1.3
SSW
6
1.8
SSW
7
3.5
SSW
8
4
SW
9
3.5
SW
10
3.5
SW
10
3
SW
9
3
WSW
9
2.5
WSW
9
3
WSW
9
2.5
WSW
9
0.9
NW
5
0.4
ENE
3
0.7
E
4
1.1
E
5
1
E
5
0.9
ESE
5
Energy kJ
6
2
38
46
58
123
282
1383
2703
2369
2140
1786
1599
1157
1249
1020
42
4
18
61
53
34
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
2
4
3
4
3
3
4
2
1
1
4
2
1
1
2
1
1
1
Distance (km)
2
2
6
6
1900
1900
1912
619
619
352
334
352
334
373
351
103
150
2
2
2
13
13
208
208
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
1
1
2
3
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
3
2
2
1
4
3
4
4
3
4
2
1
4
4
2
3
2
2
1
1
1
Header Global
Rating
(10 max)
5
4
4
4
4
4
4
4
5
4
4
4
4
4
5
5
5
4
5
4
5
5
5
5
  • 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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