Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 2 pm Wednesday 29 Apr 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
17.9° 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 10PM is: 0.2m 9s primary swell from a East direction (forecast issued at 02:00pm April 29). An open ocean swell of 0.7m 6s is not directed at the surf break, a second open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (29 Apr)--
Afternoon (29 Apr)1ft (0.3m)9s
Evening (29 Apr)0.5ft (0.2m)9s

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 55mm), heaviest during Thu night. Warm (max 23°C on Wed afternoon, min 12°C on Thu afternoon). Mainly strong winds.

Wed
29
Thursday
30
Friday
1
Sat
2
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
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
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)
0.3
E
9
0.3
E
9
0.3
E
9
0.2
E
9
0.3
E
9
1.3
E
5
0.1
S
12
1.6
E
6
1.9
E
6
2
E
7
1.9
E
6
1.7
E
6
1.5
E
6
2
ESE
7
2.5
ESE
8
2.1
ESE
8
1.9
SE
8
1.8
SE
9
1.2
ESE
9
0.9
ESE
9
0.8
ESE
9
0.6
ESE
9
0.4
ESE
9
0.4
ESE
10
Wave Graph
Metric surfscale
Energy kJ
15
14
14
6
14
87
3
199
282
342
293
239
188
352
711
536
509
525
221
141
92
54
34
37
Wind (km/h)
30
W
25
W
25
W
20
WNW
20
NE
20
NE
20
NE
20
ENE
20
NE
25
ENE
25
ENE
30
NE
30
NE
40
NE
35
NE
30
NE
20
NE
5
N
35
W
35
W
35
W
45
W
30
WNW
20
WNW
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
High Tide
4:19PM1.36m
4:01AM1.49m
4:54PM1.41m
4:23AM1.53m
5:28PM1.44m
4:47AM1.57m
Low Tide
10:11AM0.37m
10:07PM0.60m
10:37AM0.26m
10:35PM0.65m
11:04AM0.16m
11:01PM0.69m
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
mod rain
heavy rain
heavy rain
light rain
rain showers
cloud
thunderstorm
part cloud
cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
4:56
4:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:29
6:30
6:30
6:31
3
4
3
4
7
12
15
5
1
1
Temp °C
23
23
20
18
17
15
15
14
13
12
12
12
13
13
14
15
16
17
17
15
14
14
14
18
16
17
14
14
15
12
11
10
9
8
7
6
8
6
8
11
14
17
11
8
7
6
8
14
Swell 1
Height (m)
Direction
Period (s)
0.3
E
9
0.3
E
9
0.3
E
9
0.7
SW
6
0.7
SW
6
0.5
SW
6
0.4
SW
6
0.4
SW
6
0.3
SW
6
0.2
SSW
6
0.1
SW
5
0.1
SW
5
0.5
SE
8
2.5
ESE
8
2.1
ESE
8
2.2
SSW
8
2.5
SSW
9
1.2
ESE
9
0.9
ESE
9
0.8
ESE
9
0.6
ESE
9
0.4
ESE
9
0.4
ESE
10
Energy kJ
15
14
14
32
33
15
12
9
5
3
1
1
33
711
536
634
1009
221
141
92
54
34
37
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
6
0.1
SE
11
0.1
SE
11
0.2
E
9
0.6
W
4
0.4
WNW
5
0.2
W
5
0.1
S
12
0.1
S
12
0.9
SSW
7
1.9
SE
8
1.8
SE
9
0.9
SSE
8
0.8
SSE
8
0.3
SE
10
0.3
SE
10
Energy kJ
1
5
5
6
14
8
2
3
3
64
509
525
119
69
16
16
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
11
0.1
S
13
0.1
S
13
0.1
E
11
0.3
E
9
0.1
SE
8
0.1
S
12
0.1
S
12
Energy kJ
5
3
3
2
14
3
3
3
Wind waves
Height (m)
Direction
Period (s)
1.2
SW
6
1.2
WSW
6
1.1
WSW
6
0.8
WNW
4
0.2
E
3
1.3
E
5
1.7
E
6
1.6
E
6
1.9
E
6
2
E
7
1.9
E
6
1.7
E
6
1.5
E
6
2
ESE
7
1.9
SSW
7
1.9
SW
8
3
SW
9
2.5
SW
9
2.5
SW
9
3
SW
9
3.5
WSW
9
3.5
WSW
9
3
WSW
9
Energy kJ
105
87
77
24
1
87
212
199
282
342
293
239
188
352
379
485
1305
1088
1134
1441
1704
1718
1259
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
2
1
1
1
1
1
1
1
2
1
3
3
2
4
4
2
1
2
2
3
1
Distance (km)
161
145
104
1025
1025
1025
1025
150
150
352
747
658
430
351
334
103
13
2
351
351
103
103
2
127
Best forecast wave conditions in Shizuoka
Rating
(10 max)
4
4
3
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
1
1
1
1
1
3
3
3
3
4
4
5
2
1
4
4
4
4
Header Global
Rating
(10 max)
9
9
8
8
8
7
6
5
5
5
5
5
5
6
6
6
6
7
5
5
5
5
5
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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