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

Katahama 48 hour detailed Surf Forecast

Weather Forecast for Katahama

Issued: 8 am 05 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
21.3° C

1.3°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 (05 Jun):

  • Morning surf: Morning surf (05 Jun, local time) - 4.5ft (1.4m), 5s period with E swell.
  • Afternoon surf: Afternoon surf (05 Jun, local time) - 5.5ft (1.7m), 6s period with E swell.
  • Evening surf: Evening surf (05 Jun, local time) - 3.5ft (1.1m), 5s period with E swell.

The current surf forecast for Katahama at 2PM is: 1.7m 6s primary swell from a East direction (forecast issued at 08:00am June 05). An open ocean swell of 0.4m 12s is not directed at the surf break, a second open ocean swell of 0.4m 7s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (05 Jun)4.5ft (1.4m)5s
Afternoon (05 Jun)5.5ft (1.7m)6s
Evening (05 Jun)3.5ft (1.1m)5s

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 51mm), heaviest during Sun night. Warm (max 22°C on Fri afternoon, min 18°C on Fri night). Winds increasing (calm on Sat night, fresh winds from the ENE by Sun night).

Friday
5
Saturday
6
Sunday
7
Mon
8
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
1
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
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)
0.4
ESE
8
1.4
E
5
1.8
E
6
1.7
E
6
1.4
E
6
1.1
E
5
1.2
E
5
1.1
E
6
0.9
E
6
0.7
E
6
0.7
E
6
0.7
E
5
0.6
E
7
0.8
E
12
0.8
E
12
0.8
E
12
0.2
ESE
10
0.7
E
4
0.8
E
4
1
E
4
0.9
ESE
4
1.2
E
5
1.7
E
5
1.9
E
6
Wave Graph
Metric surfscale
Energy kJ
20
104
237
219
134
67
77
78
55
32
30
28
38
172
178
178
11
16
22
40
28
61
168
238
Wind (km/h)
10
NE
25
ENE
20
E
10
SE
5
ESE
10
NNE
15
NNE
15
NE
10
NNE
10
NE
10
SE
10
S
10
S
5
SE
5
ENE
5
NNE
5
ENE
15
ENE
10
ENE
15
NE
20
ENE
30
NE
35
ENE
30
NE
Wind State
cross
cross-on
cross-on
on
cross-on
cross-off
cross-off
cross
cross-off
cross
on
cross-on
cross-on
on
cross-on
glassy
cross
cross
cross
cross
cross-on
cross
cross
cross
High Tide
7:32AM1.42m
9:38PM1.45m
8:31AM1.30m
10:35PM1.44m
9:50AM1.18m
11:35PM1.44m
Low Tide
2:37PM0.29m
3:34AM0.93m
3:29PM0.42m
4:54AM0.87m
4:29PM0.56m
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
light rain
heavy rain
heavy rain
mod rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:33
—
—
—
—
—
—
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
13
18
8
5
Temp °C
19
20
21
22
21
20
18
18
18
19
20
20
20
20
19
19
19
20
19
18
18
18
18
19
Feels °C
18
16
18
21
21
19
16
17
17
18
20
19
20
21
20
20
20
19
19
17
16
15
14
15
Swell 1
Height (m)
Direction
Period (s)
0.8
SSW
7
0.7
SSW
7
0.5
SSW
7
0.4
ENE
12
0.5
E
12
0.5
E
12
0.5
E
12
0.5
E
12
0.9
E
6
0.7
E
6
0.7
SSW
7
0.7
SSW
7
0.6
SSW
7
0.8
E
12
0.8
E
12
0.5
SW
7
0.7
E
12
0.6
E
12
0.6
E
12
0.6
E
11
0.6
E
11
0.3
SW
6
0.3
SW
6
0.6
S
7
Energy kJ
68
47
28
50
75
78
76
75
55
32
48
47
34
172
178
23
139
101
99
94
89
6
6
33
Swell 2
Height (m)
Direction
Period (s)
0.4
ESE
8
0.1
SE
12
0.1
SE
12
0.4
SSW
7
0.3
SSW
7
0.3
SSW
7
0.2
SSW
7
0.2
SSW
7
0.5
E
12
0.5
SSW
8
0.5
E
12
0.5
E
12
0.5
E
12
0.6
SSW
7
0.6
SSW
7
0.2
ESE
11
0.5
SW
7
0.4
SSW
7
0.4
SW
7
0.4
SW
6
0.4
SW
6
0.1
SE
10
0.1
SE
10
0.3
SW
9
Energy kJ
20
5
5
19
9
9
5
4
73
32
72
71
70
33
32
11
23
18
11
11
10
4
4
13
Swell 3
Height (m)
Direction
Period (s)
0.3
ENE
12
0.2
E
15
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
11
0.3
SSW
7
0.5
E
12
0.1
SE
11
0.3
E
7
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
10
0.2
ESE
10
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
E
10
—
0.1
SE
10
Energy kJ
28
18
5
6
6
5
5
5
10
72
5
9
5
4
4
4
11
4
4
4
4
2
—
4
Wind waves
Height (m)
Direction
Period (s)
0.6
E
4
1.4
E
5
1.8
E
6
1.7
E
6
1.4
E
6
1.1
E
5
1.2
E
5
1.1
E
6
—
—
0.7
E
6
0.7
E
5
0.6
E
7
—
—
0.8
E
12
0.5
E
4
0.7
E
4
0.8
E
4
1
E
4
0.9
ESE
4
1.2
E
5
1.7
E
5
1.9
E
6
Energy kJ
15
104
237
219
134
67
77
78
—
—
30
28
38
—
—
178
7
16
22
40
28
61
168
238
Nearest Offshore or Glassy
Omaezaki
Shizuoka
Unnamed
Kyu Shu
Nagata
Kyu Shu
Hashikui Bay
Shikoku
Hashikui Bay
Shikoku
Hashikui Bay
Shikoku
Hashikui Bay
Shikoku
Hashikui Bay
Shikoku
Suruga Bay
Shizuoka
Omaezaki
Shizuoka
Hashikui Bay
Shikoku
Yasuda Rivermouth
Shikoku
Keta Reef Oshima
Izu Islands
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Susuki
Shizuoka
Big Ben
Chiba
Amatu
Chiba
Kurihama
Kanagawa
Keta Reef Oshima
Izu Islands
Yasuda Rivermouth
Shikoku
Keta Reef Oshima
Izu Islands
Usami
Shizuoka
Nunoshima
Shikoku
Rating
(10 max)
1
1
1
3
3
2
2
2
1
1
1
1
1
2
2
1
3
3
1
1
4
1
1
3
Distance (km)
13
721
747
355
355
355
355
355
2
13
355
415
104
13
13
6
179
186
145
104
415
104
85
351
Best forecast wave conditions in Shizuoka
Omaezaki
Omaezaki
Akabane Long Beach
Omaezaki
Omaezaki
Omaezaki
Usami
Rating
(10 max)
1
1
1
2
2
2
1
Best forecast wave conditions in Japan
Niyodo Rivermouth
Shikoku
Kojima
Kyu Shu
Nagata
Kyu Shu
Hashikui Bay
Shikoku
Yasuda Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Yasuda Rivermouth
Shikoku
Yasuda Rivermouth
Shikoku
Keta Reef Oshima
Izu Islands
Matsube Bay
Chiba
Kuminatu
Chiba
Kuminatu
Chiba
Kuminatu
Chiba
Kuminatu
Chiba
Takanabe
Kyu Shu
Keta Reef Oshima
Izu Islands
Niyodo Rivermouth
Shikoku
Kaifu Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Rating
(10 max)
1
1
1
3
3
3
2
2
2
2
1
1
1
4
4
4
3
3
4
1
4
4
4
4
Header Global
Cobblestones
Australia
Cobblestones
Australia
Cobblestones
Australia
Cobblestones
Australia
Papa Tangaroa
Chile
Viri Inga O Tuki
Chile
Viri Inga O Tuki
Chile
Cow Bombie
Australia
Cobblestones
Australia
Cobblestones
Australia
Cobblestones
Australia
Luna Park
Australia
Lebu
Chile
Easter Reef
Australia
Easter Reef
Australia
Easter Reef
Australia
Easter Reef
Australia
Lebu
Chile
El Loa
Chile
El Loa
Chile
El Loa
Chile
El Olon de Ilo
Peru
El Olon de Ilo
Peru
Easter Reef
Australia
Rating
(10 max)
5
5
5
5
9
9
9
9
8
8
8
9
9
9
9
9
9
6
6
8
8
8
8
8
  • 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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