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

Katahama 48 hour detailed Surf Forecast

Weather Forecast for Katahama

Issued: 2 am 06 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.


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) - 3ft (0.9m), 5s 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 8AM is: 0.9m 6s primary swell from a East direction (forecast issued at 02:00am June 06). An open ocean swell of 0.5m 7s is not directed at the surf break, a second open ocean swell of 0.4m 12s 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)3ft (0.9m)5s
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 37mm), heaviest during Sun night. Warm (max 25°C on Mon afternoon, min 18°C on Sat morning). Winds increasing (light winds from the NE on Sat night, strong winds from the NE by Sun night).

Saturday
6
Sunday
7
Monday
8
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
3
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)
1.1
E
6
1
E
6
0.9
E
6
0.8
E
6
0.8
E
6
0.9
E
5
0.7
E
5
0.8
E
12
0.7
E
12
0.2
ESE
11
0.2
ESE
10
0.6
E
4
0.8
E
4
0.9
E
4
1.1
E
11
1.5
ESE
5
2.1
SE
6
2.5
SSE
7
4
SSW
10
2.2
SSE
9
3
SSW
11
3
SW
10
0.5
E
11
0.9
SSE
7
Wave Graph
Metric surfscale
Energy kJ
77
71
57
45
45
45
28
175
136
11
11
9
20
28
305
96
286
657
0
708
0
0
55
79
Wind (km/h)
15
NE
15
NE
15
NE
10
NE
10
E
10
S
10
S
10
SSE
5
E
5
NE
5
ENE
15
ENE
15
ENE
10
ENE
20
ENE
25
ENE
30
NE
40
NE
35
NE
10
WNW
15
W
25
WSW
25
WSW
25
W
Wind State
cross
cross
cross
cross
cross-on
cross-on
cross-on
on
cross-on
cross
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-off
cross-off
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
5:36PM0.69m
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
heavy rain
mod rain
mod rain
light rain
cloud
part cloud
clear
part 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
 mm
2
4
14
8
6
3
Temp °C
18
18
18
18
20
20
20
20
19
19
18
20
20
19
19
18
18
18
19
20
22
25
24
23
Feels °C
17
16
16
17
20
19
20
20
20
20
19
19
18
19
18
16
14
12
14
21
22
23
22
21
Swell 1
Height (m)
Direction
Period (s)
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
5
0.8
E
12
0.7
E
12
0.7
E
12
0.8
E
12
0.6
E
12
0.6
E
12
0.6
E
12
0.4
SW
6
0.4
SW
6
0.6
E
11
0.5
E
11
3.5
SSW
9
3
SW
10
3
SSW
11
0.5
E
11
0.5
E
11
0.9
SSE
7
Energy kJ
76
75
73
31
37
36
28
175
136
137
177
103
101
99
10
10
88
63
1742
1636
2170
58
55
79
Swell 2
Height (m)
Direction
Period (s)
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
0.5
SW
7
0.4
SSW
7
0.4
SSW
7
0.4
SW
7
0.4
SW
6
0.1
SE
10
0.4
SW
6
0.5
E
11
2.2
SSE
9
0.5
E
11
0.6
E
11
0.7
E
10
0.4
E
10
Energy kJ
5
5
10
47
72
71
34
33
23
23
18
18
11
11
4
10
62
708
59
83
108
33
Swell 3
Height (m)
Direction
Period (s)
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
0.2
ESE
11
0.2
ESE
10
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.1
SE
10
0.5
E
11
Energy kJ
5
5
5
5
5
5
70
4
4
11
11
4
4
4
4
61
Wind waves
Height (m)
Direction
Period (s)
1.1
E
6
1
E
6
0.9
E
6
0.8
E
6
0.8
E
6
0.9
E
5
0.6
E
4
0.8
E
4
0.9
E
4
1.1
E
11
1.5
ESE
5
2.1
SE
6
2.5
SSE
7
4
SSW
10
3
SW
10
2.5
SW
10
2
SW
9
Energy kJ
77
71
57
45
45
45
9
20
28
305
96
286
657
2621
1803
1199
683
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
2
1
1
1
4
3
3
1
1
1
1
8
1
3
4
4
3
4
1
Distance (km)
355
355
415
415
415
415
104
104
13
186
179
186
145
104
104
104
352
103
351
2
2
94
198
65
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
4
4
3
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
2
2
1
4
4
4
3
3
4
1
1
1
9
4
3
4
4
5
4
3
Header Global
Rating
(10 max)
9
9
8
8
8
8
9
9
9
9
9
8
6
8
8
8
8
8
9
8
7
6
7
7
  • 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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