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

Katahama 48 hour detailed Surf Forecast

Weather Forecast for Katahama

Issued: 2 pm 06 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
21.0° C

1.8°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.


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

  • 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 5PM is: 0.8m 12s primary swell from a East direction and 0.8m 6s secondary swell from a East direction (forecast issued at 02:00pm June 06). An open ocean swell of 0.6m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (06 Jun)--
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

Short Range Forecast

Heavy rain (total 57mm), heaviest during Sun night. Warm (max 24°C on Mon afternoon, min 18°C on Sun afternoon). Winds decreasing (strong winds from the ENE on Sun night, calm by Tue morning).

Sat
6
Sunday
7
Monday
8
Tue
9
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
1
0
0
0
0
0
0
0
0
0
1
2
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
E
6
0.8
E
6
0.8
E
12
0.8
E
12
0.7
E
12
0.1
SE
11
0.1
SE
11
0.1
SE
10
0.8
E
4
0.9
ESE
4
1.3
ESE
5
1.5
E
5
1.9
E
6
1.6
ENE
6
2.1
S
8
2.1
SSE
8
3
SSW
10
1.2
SSE
8
0.9
SSE
7
0.9
SSE
7
0.8
SSE
7
0.6
SSE
7
0.4
E
10
0.4
E
10
Wave Graph
Metric surfscale
Energy kJ
44
38
172
175
136
4
4
4
19
31
74
124
236
173
630
606
0
161
97
82
63
37
32
31
Wind (km/h)
5
E
10
SSE
10
S
10
SE
5
E
5
ENE
10
ENE
15
NE
20
ENE
20
ENE
30
ENE
25
ENE
35
ENE
40
ENE
25
NE
15
NE
5
N
20
SSW
25
WSW
30
WSW
30
WSW
30
W
25
W
10
W
Wind State
cross-on
cross-on
cross-on
on
glassy
cross
cross
cross
cross-on
cross-on
cross
cross-on
cross
cross
cross
cross
glassy
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
10:35PM1.44m
9:50AM1.18m
11:35PM1.44m
11:43AM1.12m
00:32AM1.45m
Low Tide
3:29PM0.42m
4:54AM0.87m
4:29PM0.56m
6:15AM0.78m
5:36PM0.69m
7:26AM0.66m
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
mod rain
heavy rain
heavy rain
light rain
light rain
light rain
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
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>
6:57
6:57
6:58
6:58
 mm
1
6
30
11
4
4
1
Temp °C
20
20
20
19
19
19
19
19
20
19
18
18
18
19
19
19
22
24
22
23
22
21
20
22
Feels °C
20
19
20
19
20
20
20
18
18
18
15
16
14
14
17
18
24
23
20
21
19
17
18
22
Swell 1
Height (m)
Direction
Period (s)
0.6
SSW
7
0.6
SSW
7
0.8
E
12
0.8
E
12
0.7
E
12
0.7
E
12
0.7
E
12
0.4
SSW
7
0.6
E
12
0.6
E
12
0.4
SW
6
0.3
SW
6
0.7
S
7
2.3
S
8
2.3
SW
10
2.5
SW
10
3
SSW
10
1.2
SSE
8
0.9
SSE
7
0.9
SSE
7
0.8
SSE
7
0.6
SSE
7
0.5
SSE
7
0.4
SSE
6
Energy kJ
37
36
172
175
136
137
137
18
101
99
10
6
43
737
1112
1379
1744
161
97
82
63
37
26
14
Swell 2
Height (m)
Direction
Period (s)
0.5
E
12
0.5
E
12
0.6
SSW
7
0.6
SSW
7
0.6
SSW
7
0.5
SW
7
0.4
SSW
7
0.1
SE
10
0.4
SW
7
0.4
SW
6
0.4
SW
6
0.1
SE
10
0.1
SE
10
1
ENE
6
2.1
S
8
2.1
SSE
8
0.6
E
11
0.7
SSW
8
0.5
E
11
0.5
E
10
0.5
E
10
0.4
E
10
0.4
E
10
0.4
E
10
Energy kJ
72
71
34
33
32
23
18
4
11
11
10
4
4
72
630
606
86
68
58
54
52
33
32
31
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.8
ENE
11
0.6
E
11
0.6
E
11
0.6
ENE
11
0.6
E
11
0.1
SE
9
Energy kJ
5
5
5
4
4
4
4
4
4
4
4
164
88
86
91
85
3
Wind waves
Height (m)
Direction
Period (s)
0.8
E
6
0.8
E
6
0.3
E
3
0.8
E
12
0.8
E
4
0.9
ESE
4
1.3
ESE
5
1.5
E
5
1.9
E
6
1.6
ENE
6
1.5
ENE
5
0.5
NNE
4
2.2
SW
10
2.2
SW
10
2
SW
9
1.7
SW
9
1.7
SW
9
1.7
WSW
8
1.9
WSW
8
Energy kJ
44
38
1
180
19
31
74
124
236
173
118
11
924
869
640
450
439
413
443
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
1
1
2
1
4
3
3
1
1
3
3
4
3
4
4
2
3
3
2
2
2
Distance (km)
415
415
355
104
104
13
13
186
179
186
104
104
430
208
351
351
94
2
65
148
103
103
103
103
Best forecast wave conditions in Shizuoka
Rating
(10 max)
2
1
4
4
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
1
4
4
4
4
3
3
1
1
4
4
4
4
4
4
4
4
3
2
4
4
Header Global
Rating
(10 max)
8
8
8
8
9
9
9
9
9
8
6
7
7
8
8
9
9
8
7
6
7
6
5
9
  • 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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