Katahama Surf Break
Lat Long: 34.72° N 138.22° E

Katahama 48 hour detailed Surf Forecast

Weather Forecast for Katahama

Issued: 8 pm 05 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
21.0° C

1.6°C colder than average for this time of year

Katahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Surf Forecasts:

How big are the waves at Katahama today (06 Jun):

  • Morning surf: Morning surf (06 Jun, local time) - 2.5ft (0.8m), 6s period with E swell.
  • Afternoon surf: Afternoon surf (06 Jun, local time) - 2.5ft (0.8m), 6s period with E swell.
  • Evening surf: Evening surf (06 Jun, local time) - 2.5ft (0.8m), 12s period with E swell.

The current surf forecast for Katahama at 4AM is: 1.0m 6s primary swell from a East direction (forecast issued at 08:00pm June 05). An open ocean swell of 0.5m 12s is not directed at the surf break, a second open ocean swell of 0.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (06 Jun)2.5ft (0.8m)6s
Afternoon (06 Jun)2.5ft (0.8m)6s
Evening (06 Jun)2.5ft (0.8m)12s

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 44mm), heaviest during Sun night. Warm (max 25°C on Mon afternoon, min 18°C on Fri night). Winds increasing (calm on Sat night, fresh winds from the NE by Sun night).

Fri
5
Saturday
6
Sunday
7
Monday
8
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
12 PM
3 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
3
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
E
6
1.4
E
6
1.2
E
6
1
E
6
0.9
E
6
0.8
E
6
0.9
E
6
0.8
E
6
0.7
E
7
0.8
E
12
0.8
E
12
0.8
E
12
0.1
SE
10
0.6
E
4
0.8
E
4
1.2
E
5
1.4
E
5
1.6
E
5
1.8
E
6
1.1
SE
6
1.4
E
7
1.9
S
8
0.8
E
8
1.4
S
8
Wave Graph
Metric surfscale
Energy kJ
134
121
92
68
55
45
57
38
43
175
178
175
4
9
22
60
85
142
220
98
167
501
80
251
Wind (km/h)
5
NE
15
NE
15
NE
15
NE
15
NE
10
NE
10
ESE
10
S
10
S
10
SSE
10
ESE
5
NE
10
NE
15
NE
15
ENE
15
NE
20
ENE
30
ENE
30
ENE
35
NE
25
NE
10
NNE
20
W
25
WSW
Wind State
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
on
cross-on
glassy
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
High Tide
9:38PM1.45m
8:31AM1.30m
10:35PM1.44m
9:50AM1.18m
11:35PM1.44m
11:43AM1.12m
Low Tide
3:34AM0.93m
3:29PM0.42m
4:54AM0.87m
4:29PM0.56m
6:15AM0.78m
cloud
cloud
part cloud
part cloud
cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
light rain
light rain
mod rain
heavy rain
mod rain
mod rain
light rain
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
4:33
—
—
—
—
—
—
—
4:33
—
—
—
—
—
—
—
4:33
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
—
—
—
—
—
—
—
6:57
—
—
—
—
—
—
—
6:57
—
—
—
—
—
—
6:58
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
5
7
13
8
8
2
—
—
—
Temp °C
21
19
18
18
18
19
20
20
20
20
19
19
19
19
19
18
18
18
18
18
20
20
22
25
Feels °C
21
18
16
16
16
18
19
19
20
20
19
20
20
18
18
17
16
14
14
13
18
21
21
22
Swell 1
Height (m)
Direction
Period (s)
0.5
E
12
0.5
E
12
0.5
E
12
0.5
E
12
0.5
E
12
0.5
SSW
7
0.6
SSW
7
0.6
SSW
7
0.7
E
7
0.8
E
12
0.8
E
12
0.5
SW
7
0.4
SSW
7
0.6
E
12
0.6
E
12
0.4
SW
6
0.4
SW
6
0.3
SW
6
0.2
SSW
6
1.1
SE
6
2.4
SSW
9
2.2
SW
10
3
SSW
9
1.4
S
8
Energy kJ
76
78
76
75
73
31
37
36
43
175
178
23
18
103
101
11
10
6
4
98
990
906
1376
251
Swell 2
Height (m)
Direction
Period (s)
0.3
SSW
7
0.3
SSW
7
0.2
SSW
7
0.2
SSW
7
0.3
SSW
7
0.4
ENE
12
0.5
E
12
0.5
E
12
0.6
SSW
7
0.6
SSW
7
0.5
SW
7
0.1
SE
11
0.1
SE
10
0.4
SSW
7
0.4
SW
7
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.3
SW
6
0.6
S
7
0.5
E
11
1.9
S
8
0.8
E
8
0.8
E
8
Energy kJ
9
9
5
5
10
47
72
71
34
33
23
4
4
18
11
4
4
4
6
37
62
501
80
82
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.5
E
12
0.1
SE
11
0.1
SE
11
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
E
11
—
—
—
0.3
SW
9
0.6
E
11
1
E
7
0.5
E
11
0.5
E
11
Energy kJ
6
5
5
5
5
5
5
5
70
4
4
4
4
4
4
2
—
—
—
14
86
106
59
57
Wind waves
Height (m)
Direction
Period (s)
1.4
E
6
1.4
E
6
1.2
E
6
1
E
6
0.9
E
6
0.8
E
6
0.9
E
6
0.8
E
6
—
—
—
0.8
E
12
0.8
E
12
0.6
E
4
0.8
E
4
1.2
E
5
1.4
E
5
1.6
E
5
1.8
E
6
1.5
E
6
1.4
E
7
2.5
SW
10
—
2.2
SW
10
Energy kJ
134
121
92
68
55
45
57
38
—
—
—
175
180
9
22
60
85
142
220
170
167
1306
—
906
Nearest Offshore or Glassy
Suruga Bay
Shizuoka
Hashikui Bay
Shikoku
Hashikui Bay
Shikoku
Hashikui Bay
Shikoku
Hashikui Bay
Shikoku
Hashikui Bay
Shikoku
Yasuda Rivermouth
Shikoku
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Keta Reef Oshima
Izu Islands
Amatu
Chiba
Kurihama
Kanagawa
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Ohara
Chiba
Tainohama
Shikoku
Sakawa River
Kanagawa
Shimoda Yamatoken (Tatado Hama)
Shizuoka
Suruga Bay
Shizuoka
Susuki
Shizuoka
Inamuragasaki
Kanagawa
Rating
(10 max)
1
2
2
2
1
1
2
1
1
1
2
2
1
3
1
1
1
3
4
1
1
3
1
2
Distance (km)
2
355
355
355
355
355
415
104
104
104
13
13
104
186
145
104
104
208
352
103
66
2
6
136
Best forecast wave conditions in Shizuoka
Suruga Bay
Omaezaki
Omaezaki
Usami
Omaezaki
Usami
Rating
(10 max)
1
2
2
1
4
1
Best forecast wave conditions in Japan
Suruga Bay
Shizuoka
Yasuda Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Yasuda Rivermouth
Shikoku
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Kuminatu
Chiba
Matsube Bay
Chiba
Matsube Bay
Chiba
Matsube Bay
Chiba
Kuminatu
Chiba
Takanabe
Kyu Shu
Keta Reef Oshima
Izu Islands
Tsurigasaki Surfing Beach (Tokyo 2020)
Chiba
Kaifu Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Omaezaki
Shizuoka
Big Ben
Chiba
Chikura
Chiba
Rating
(10 max)
1
3
2
2
2
2
2
1
1
4
4
4
4
3
4
1
3
5
4
4
3
4
4
4
Header Global
Papa Tangaroa
Chile
Papa Tangaroa
Chile
Viri Inga O Tuki
Chile
Cow Bombie
Australia
Cobblestones
Australia
Cobblestones
Australia
Cobblestones
Australia
Lebu
Chile
Lebu
Chile
Luna Park
Australia
Easter Reef
Australia
Easter Reef
Australia
Easter Reef
Australia
Teniente (Lieutenant)
Chile
Teniente (Lieutenant)
Chile
El Loa
Chile
El Loa
Chile
El Olon de Ilo
Peru
El Olon de Ilo
Peru
Easter Reef
Australia
Trial Harbour
Australia
Easter Reef
Australia
Easter Reef
Australia
Easter Reef
Australia
Rating
(10 max)
9
9
9
9
8
8
8
8
9
9
9
9
9
8
7
8
8
8
8
7
9
7
7
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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