Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 am 22 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
22.4° C

1.4°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 (22 Jun):

  • Morning surf: Morning surf (22 Jun, local time) - 1.5ft (0.4m), 10s period with SE swell.
  • Afternoon surf: Afternoon surf (22 Jun, local time) - 1.5ft (0.4m), 10s period with SE swell.
  • Evening surf: Evening surf (22 Jun, local time) - 1.5ft (0.4m), 10s period with SE swell.

The current surf forecast for Katahama at 8AM is: 0.4m 10s primary swell from a Southeast direction (forecast issued at 02:00am June 22). An open ocean swell of 1.6m 7s is not directed at the surf break, a second open ocean swell of 0.5m 5s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (22 Jun)1.5ft (0.4m)10s
Afternoon (22 Jun)1.5ft (0.4m)10s
Evening (22 Jun)1.5ft (0.4m)10s

Table - waves today at Katahama. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Mon night. Warm (max 24°C on Mon morning, min 20°C on Mon night). Wind will be generally light.

Monday
22
Tuesday
23
Wednesday
24
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
1
0
0
0
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
SE
9
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
11
0.4
SE
11
0.9
E
5
0.4
SE
11
0.5
E
5
0.3
E
4
0.3
SE
10
0.4
SE
10
0.6
E
10
0.4
SE
12
0.4
SE
11
0.4
SE
11
0.7
E
9
0.6
E
9
Wave Graph
Metric surfscale
Energy kJ
31
25
35
35
25
35
35
35
35
38
41
43
45
43
11
3
15
37
68
47
42
41
85
60
Wind (km/h)
30
WNW
20
WNW
15
WNW
0
ENE
10
SE
10
ESE
10
SE
15
ESE
15
ENE
15
NE
15
NNE
10
NE
5
SE
10
SW
15
SW
5
WSW
0
ENE
0
E
5
ENE
10
E
10
SE
10
SSE
10
SSE
5
SE
Wind State
cross-off
cross-off
off
glassy
on
on
on
cross-on
cross
cross-off
cross-off
cross
glassy
cross
cross-off
cross-off
glassy
glassy
cross-on
cross-on
on
on
on
on
High Tide
10:28PM1.51m
10:23AM1.19m
11:22PM1.49m
12:16PM1.14m
00:17AM1.48m
2:05PM1.18m
Low Tide
5:03AM0.79m
4:30PM0.68m
6:18AM0.71m
5:33PM0.83m
7:30AM0.60m
6:45PM0.95m
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
cloud
cloud
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part 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>
7:02
7:02
7:02
 mm
1
1
Temp °C
23
22
22
24
24
23
23
22
21
20
20
21
22
22
22
21
21
21
20
22
22
22
21
21
Feels °C
20
21
22
27
25
24
25
23
22
20
20
21
24
22
22
23
24
24
22
23
23
23
22
23
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
9
0.4
SE
10
1.7
WSW
7
1.5
WSW
7
1.4
WSW
7
1.4
WSW
7
1.3
WSW
6
0.9
SW
7
0.4
SE
10
0.4
SE
10
1.1
WSW
6
0.6
SW
6
0.5
SW
6
0.7
E
5
0.5
E
5
0.4
ENE
10
0.5
E
10
0.5
E
10
0.6
E
10
0.5
E
10
0.5
E
10
0.5
E
9
0.7
E
9
0.6
E
9
Energy kJ
31
25
289
222
196
175
136
73
35
38
69
27
16
26
11
33
51
50
68
48
46
45
85
60
Swell 2
Height (m)
Direction
Period (s)
0.2
E
12
0.2
E
12
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.6
W
5
0.3
ENE
10
0.3
ENE
9
0.4
SE
11
0.5
W
5
0.4
SE
11
0.5
SW
6
0.3
ENE
10
0.4
SW
6
0.4
SW
5
0.4
SE
10
0.4
SE
12
0.4
SE
12
0.4
SE
11
0.4
SSW
11
0.4
SE
11
0.4
SSW
10
Energy kJ
11
11
35
35
25
35
35
20
18
17
41
11
32
15
20
8
7
37
47
47
42
41
41
33
Swell 3
Height (m)
Direction
Period (s)
0.2
ENE
9
0.1
SE
16
0.2
E
12
0.2
ENE
12
0.2
ENE
11
0.2
ENE
10
0.2
ENE
10
0.4
SE
10
0.1
S
11
0.1
S
11
0.3
ENE
9
0.4
SE
11
0.3
WNW
4
0.4
SE
11
0.3
SW
6
0.3
E
4
0.3
SE
10
0.2
S
5
0.2
SSW
5
0.3
SSW
12
0.4
S
11
0.4
SE
11
0.3
SSW
12
0.4
SE
11
Energy kJ
8
10
11
13
12
11
10
35
2
2
17
43
4
43
5
3
15
2
3
28
40
41
27
41
Wind waves
Height (m)
Direction
Period (s)
2.2
WSW
8
2.1
WSW
8
0.5
NW
5
2
W
6
1.8
W
6
1.9
W
6
0.2
ESE
2
1.6
W
6
1.3
WSW
6
1.3
WSW
6
0.7
E
4
0.9
E
5
0.4
E
3
0.5
E
3
0.6
E
4
0.6
E
4
Energy kJ
643
487
12
314
272
282
1
175
127
102
18
45
2
5
11
13
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
1
2
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
Distance (km)
103
103
2
2
104
13
13
186
13
13
2
13
94
6
65
94
94
94
13
236
236
104
104
13
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
3
4
2
1
2
1
2
2
2
2
2
1
1
1
1
1
3
2
2
2
2
2
2
Header Global
Rating
(10 max)
7
7
7
6
6
5
7
6
6
5
5
5
5
6
5
5
5
6
7
8
9
9
9
8
  • 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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