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Surf Forecasts:

Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 8 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 3PM is: 1.7m 6s primary swell from a East direction and 0.3m 7s secondary swell from a South direction (forecast issued at 08:00am April 25). An open ocean swell of 0.3m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (25 Apr)5ft (1.6m)6s
Afternoon (25 Apr)5.5ft (1.7m)6s
Evening (25 Apr)4.5ft (1.4m)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

Moderate rain (total 13mm), heaviest on 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
Tue
28
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
0
0
0
0
0
0
0
0
0
0
0
2
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)
1.4
E
6
1.6
E
6
1.7
E
6
1.7
E
6
1.5
E
6
1.4
ESE
6
1.4
ESE
6
1.3
ESE
6
1.2
ESE
7
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
1.4
ESE
6
1.5
ESE
7
1.4
ESE
7
1
ESE
7
0.9
ESE
7
0.6
ESE
7
0.6
ESE
7
0.6
ESE
7
Wave Graph
Metric surfscale
Energy kJ
125
175
219
235
188
165
153
133
131
123
119
103
107
110
119
85
144
192
173
102
82
32
38
40
Wind (km/h)
15
ENE
20
ENE
15
ENE
15
E
15
E
15
E
10
NE
10
NE
10
NE
15
ENE
15
E
20
E
20
E
25
ENE
30
NE
30
NE
25
NE
15
NE
10
WSW
10
NE
20
ESE
15
ESE
10
E
5
ENE
Wind State
cross
cross
cross-on
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
cross
on
cross-on
cross-on
cross
High Tide
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
light rain
cloud
cloud
cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
light rain
mod rain
light rain
light rain
part cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
—
—
—
—
—
—
5:03
—
—
—
—
—
—
—
5:01
—
—
—
—
—
—
—
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
6:25
—
—
—
—
—
—
—
6:27
—
—
—
—
—
—
—
6:28
—
—
6:28
 mm
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
4
6
1
2
—
—
—
—
—
Temp °C
14
14
15
16
16
15
14
14
13
15
16
17
17
16
16
13
14
15
15
17
16
15
16
15
Feels °C
11
9
11
12
13
12
12
12
10
11
13
13
13
11
10
7
10
13
14
16
13
13
15
15
Swell 1
Height (m)
Direction
Period (s)
0.6
SW
8
0.5
SW
8
0.4
SW
8
0.3
S
7
0.3
S
7
0.3
SSW
7
0.2
SSW
7
0.2
SSW
7
0.1
SE
13
0.1
SW
7
0.1
SE
11
0.1
SW
6
0.1
SW
6
0.1
SE
13
0.1
SE
13
1.1
SE
6
1.4
ESE
6
1.5
ESE
7
1.4
ESE
7
1
ESE
7
0.9
ESE
7
0.9
SSW
7
0.9
SSW
7
0.8
SSW
7
Energy kJ
53
30
16
9
8
9
5
5
7
2
5
2
2
7
7
85
144
192
173
102
82
89
77
61
Swell 2
Height (m)
Direction
Period (s)
0.4
S
7
0.4
S
7
0.3
S
7
0.3
SW
8
0.1
SW
8
0.1
SW
8
0.1
SE
14
0.1
SE
13
0.1
SE
11
0.1
SE
11
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SW
8
0.1
SW
7
0.1
SE
13
0.1
SE
13
0.1
SE
12
0.5
S
7
0.8
S
7
0.9
SSW
7
0.6
ESE
7
0.6
ESE
7
0.6
ESE
7
Energy kJ
17
16
9
9
2
2
7
7
5
5
7
7
7
2
2
6
6
6
21
59
82
32
38
40
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
SE
12
0.1
SW
8
0.1
SE
14
—
0.1
E
14
0.1
E
14
0.1
E
16
0.1
E
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
SW
7
0.1
SW
7
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.5
E
7
0.1
SE
12
0.1
SE
12
Energy kJ
5
5
2
8
—
4
4
5
4
7
7
5
5
—
4
2
2
2
6
6
6
26
6
6
Wind waves
Height (m)
Direction
Period (s)
1.4
E
6
1.6
E
6
1.7
E
6
1.7
E
6
1.5
E
6
1.4
ESE
6
1.4
ESE
6
1.3
ESE
6
1.2
ESE
7
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
NE
4
1
NNE
4
0.4
N
4
—
—
—
—
—
—
Energy kJ
125
175
219
235
188
165
153
133
131
123
119
103
107
110
119
35
34
6
—
—
—
—
—
—
Nearest Offshore or Glassy
Gomoda
Shikoku
Gomoda
Shikoku
Mera
Chiba
Keta Reef Oshima
Izu Islands
Dragons Leaf
Kyu Shu
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Uchiboso
Chiba
Omaezaki
Shizuoka
Mera
Chiba
Kurihama
Kanagawa
Niyodo Rivermouth
Shikoku
Sakawa River
Kanagawa
Sakawa River
Kanagawa
Tainohama
Shikoku
Tainohama
Shikoku
Akabane Long Beach
Shizuoka
Omaezaki
Shizuoka
Suruga Bay
Shizuoka
Susuki
Shizuoka
Sakawa River
Kanagawa
Kisami-Ohama Beach
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Rating
(10 max)
1
1
2
1
2
1
1
1
1
1
1
3
1
1
4
2
1
2
1
1
1
1
1
1
Distance (km)
334
334
150
104
619
104
104
150
13
150
145
437
103
103
352
352
94
13
2
6
103
65
13
13
Best forecast wave conditions in Shizuoka
Omaezaki
Akabane Long Beach
Omaezaki
Susuki
Susuki
Akabane Long Beach
Omaezaki
Omaezaki
Rating
(10 max)
1
1
2
2
1
1
1
1
Best forecast wave conditions in Japan
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Mera
Chiba
Keta Reef Oshima
Izu Islands
Takanabe
Kyu Shu
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Mera
Chiba
Uchiboso
Chiba
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Ikumi Beach
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Susuki
Shizuoka
Kuminatu
Chiba
Matsube Bay
Chiba
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Rating
(10 max)
3
4
2
1
4
4
4
4
4
1
1
3
3
3
4
3
2
2
2
2
2
1
1
1
Header Global
Trial Harbour
Australia
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Papatowai
New Zealand
Dunedin - Bobs Beach
New Zealand
Papatowai
New Zealand
Dunedin - Cob Cottage
New Zealand
Otago Peninsula - Papanui Beach
New Zealand
Papatowai
New Zealand
Gas Bay
Australia
Gas Bay
Australia
Gas Bay
Australia
Cobblestones
Australia
Cobblestones
Australia
Cobblestones
Australia
Cobblestones
Australia
Cyclops
Australia
Gas Bay
Australia
Cobblestones
Australia
Trial Harbour
Australia
Rating
(10 max)
5
5
5
5
5
5
5
5
5
8
5
8
6
6
7
7
9
9
8
7
5
6
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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