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Surf Forecasts:

Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 2 am Saturday 25 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
18.1° C
 (Which is 1.1°C colder than average for this time of year)

How big are the waves at Katahama today?

The current surf forecast for Katahama at 6AM is: 1.5m 6s primary swell from a East direction and 0.4m 7s secondary swell from a South direction (forecast issued at 02:00am April 25). An open ocean swell of 0.6m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (25 Apr)5ft (1.6m)6s
Afternoon (25 Apr)5ft (1.5m)6s
Evening (25 Apr)4.5ft (1.3m)6s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast

Heavy rain (total 28mm), heaviest during Sun night. Very mild (max 17°C on Sun afternoon, min 13°C on Sat night). Winds decreasing (fresh winds from the NE on Sun night, calm by Mon night).

Saturday
25
Sunday
26
Monday
27
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
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)
1
E
8
1.3
E
5
1.5
E
6
1.6
E
6
1.6
E
6
1.5
E
6
1.4
ESE
6
1.3
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.1
SE
6
1.2
ESE
6
1.3
ESE
7
1.2
ESE
7
1
ESE
7
0.9
ESE
7
0.8
ESE
7
Wave Graph
Metric surfscale
Energy kJ
125
90
143
175
194
178
160
139
123
123
123
119
119
103
107
107
119
91
109
144
124
99
66
53
Wind (km/h)
15
NE
15
ENE
15
ENE
20
ENE
20
ENE
10
ESE
15
E
15
E
10
NE
10
NE
10
NE
15
ENE
15
E
15
ESE
20
E
20
NE
30
NE
30
NNE
20
NE
25
NE
10
WNW
5
ENE
10
ESE
5
SSE
Wind State
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross
cross
cross-off
glassy
cross-on
cross-on
High Tide
1:12AM1.25m
11:36AM1.05m
2:08AM1.32m
1:41PM1.10m
2:45AM1.38m
2:50PM1.20m
Low Tide
7:14AM0.94m
6:41PM0.49m
8:29AM0.78m
7:56PM0.51m
9:10AM0.63m
8:52PM0.53m
cloud
light rain
light rain
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
mod rain
heavy rain
light rain
light rain
rain showers
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
5:03
—
—
—
—
—
—
—
5:03
—
—
—
—
—
—
—
5:01
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
6:25
—
—
—
—
—
—
—
6:27
—
—
—
—
—
—
—
6:28
—
 mm
—
2
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
6
15
2
4
1
—
—
Temp °C
15
14
14
14
15
16
16
16
14
13
13
15
16
17
17
16
15
13
13
15
14
15
15
16
Feels °C
13
12
10
9
10
13
13
13
12
10
10
12
13
13
13
12
10
8
10
11
13
15
13
16
Swell 1
Height (m)
Direction
Period (s)
0.7
SW
8
0.6
SW
8
0.6
SW
8
0.5
SW
8
0.4
SW
8
0.3
S
7
0.3
S
7
0.2
SSW
7
0.2
SSW
7
0.2
SSW
7
0.1
S
6
0.1
SW
7
0.1
SE
11
0.1
SW
7
0.1
SW
6
0.1
SE
13
0.1
SE
13
1.1
SE
6
1.2
ESE
6
1.3
ESE
7
1.2
ESE
7
1
ESE
7
0.9
ESE
7
0.8
ESE
7
Energy kJ
68
54
53
30
16
9
8
5
5
5
1
2
5
2
2
7
7
91
109
144
124
99
66
53
Swell 2
Height (m)
Direction
Period (s)
0.7
S
8
0.6
S
8
0.4
S
7
0.4
S
7
0.3
S
7
0.3
SW
8
0.1
SW
8
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SE
11
0.1
SE
13
0.1
SE
13
0.1
SE
13
—
0.1
SW
7
0.1
SE
13
0.1
SE
13
0.1
SE
12
0.6
S
7
0.6
S
7
0.6
S
6
0.7
SSW
7
Energy kJ
61
41
17
16
9
9
2
2
2
2
2
5
7
7
7
—
2
6
6
6
35
33
30
45
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SW
8
0.1
SE
14
0.1
SE
14
0.1
E
14
0.1
S
6
0.1
S
6
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
11
0.1
SE
11
0.1
E
14
—
0.1
SW
7
0.1
S
7
0.1
SW
7
—
0.1
SE
12
0.1
SE
12
0.1
SE
12
Energy kJ
5
5
5
5
2
8
8
4
1
1
7
7
7
5
5
4
—
2
1
2
—
6
6
6
Wind waves
Height (m)
Direction
Period (s)
1
E
8
1.3
E
5
1.5
E
6
1.6
E
6
1.6
E
6
1.5
E
6
1.4
ESE
6
1.3
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
1.2
ESE
6
0.9
NE
4
0.9
NNE
4
0.4
NNE
4
1.5
E
7
—
—
—
Energy kJ
125
90
143
175
194
178
160
139
123
123
123
119
119
103
107
107
119
22
25
5
202
—
—
—
Nearest Offshore or Glassy
Uchiboso
Chiba
Tainohama
Shikoku
Nunoshima
Shikoku
Gomoda
Shikoku
Mera
Chiba
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Mera
Chiba
Kurihama
Kanagawa
Ohara
Chiba
Ohara
Chiba
Sakawa River
Kanagawa
Uchiboso
Chiba
Uchiboso
Chiba
Akabane Long Beach
Shizuoka
Nunoshima
Shikoku
Suruga Bay
Shizuoka
Susuki
Shizuoka
Akabane Long Beach
Shizuoka
Suruga Bay
Shizuoka
Rating
(10 max)
1
2
1
1
2
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
Distance (km)
150
352
351
334
150
104
104
104
104
13
13
150
145
208
208
103
150
150
94
351
2
6
94
2
Best forecast wave conditions in Shizuoka
Omaezaki
Omaezaki
Akabane Long Beach
Susuki
Akabane Long Beach
Akabane Long Beach
Suruga Bay
Rating
(10 max)
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Mera
Chiba
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Mera
Chiba
Uchiboso
Chiba
Cape Toi
Kyu Shu
Cape Toi
Kyu Shu
Nunoshima
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Susuki
Shizuoka
Kaifu Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Rating
(10 max)
2
2
3
3
2
1
1
4
4
3
3
1
1
4
3
2
3
4
2
2
1
1
1
1
Header Global
Lebu
Chile
Otago Peninsula - Allans Beach
New Zealand
Trial Harbour
Australia
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Trial Harbour
Australia
Bali Village
Indonesia
Bali Village
Indonesia
Dunedin - Bobs Beach
New Zealand
Dunedin - Bobs Beach
New Zealand
Dunedin - Bobs Beach
New Zealand
Alnes Lighthouse
Norway
Papatowai
New Zealand
Gas Bay
Australia
Papatowai
New Zealand
Otago Peninsula - Allans Beach
New Zealand
Cobblestones
Australia
Cobblestones
Australia
Cobblestones
Australia
Cobblestones
Australia
Cow Bombie
Australia
Cobblestones
Australia
Rating
(10 max)
5
4
5
5
5
5
5
5
4
4
5
7
7
4
6
6
5
4
9
9
8
7
6
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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