Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 pm 28 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
23.0° 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.


How big are the waves at Katahama today (29 Jun):

  • Morning surf: Morning surf (29 Jun, local time) - 2.5ft (0.7m), 7s period with SSE swell.
  • Afternoon surf: Afternoon surf (29 Jun, local time) - 2ft (0.6m), 7s period with SSE swell.
  • Evening surf: Evening surf (29 Jun, local time) - 1.5ft (0.5m), 9s period with SE swell.

The current surf forecast for Katahama at 3AM is: 0.9m 8s primary swell from a South-southeast direction (forecast issued at 08:00pm June 28). An open ocean swell of 1.3m 9s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (29 Jun)2.5ft (0.7m)7s
Afternoon (29 Jun)2ft (0.6m)7s
Evening (29 Jun)1.5ft (0.5m)9s

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 3mm), mostly falling on Tue night. Warm (max 26°C on Wed afternoon, min 21°C on Tue night). Wind will be generally light.

Sun
28
Monday
29
Tuesday
30
Wednesday
1
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)
1
1
0
1
1
0
0
0
0
1
1
1
0
0
0
0
1
1
0
0
0
0
0
1
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
SSE
8
0.9
SSE
8
0.2
ESE
15
0.9
SSE
8
0.8
SSE
7
0.7
SSE
7
0.6
SSE
7
0.6
SSE
7
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.6
SE
10
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
Wave Graph
Metric surfscale
Energy kJ
160
116
21
105
73
55
40
37
40
41
41
43
58
54
53
53
52
41
41
41
41
41
41
40
Wind (km/h)
10
WSW
10
WSW
10
WSW
5
W
5
NE
10
E
10
SE
15
S
10
SW
10
WSW
5
NW
5
NNW
5
ENE
10
E
10
SE
10
SE
5
ENE
5
SSE
10
ESE
15
E
15
ENE
15
NE
10
ENE
5
W
Wind State
cross-off
cross-off
cross-off
glassy
glassy
cross-on
on
cross-on
cross
cross-off
off
glassy
cross
cross-on
on
on
glassy
glassy
on
cross-on
cross
cross
cross
glassy
High Tide
5:38PM1.47m
3:57AM1.58m
6:08PM1.51m
4:35AM1.61m
6:37PM1.55m
5:15AM1.63m
Low Tide
10:43PM1.10m
11:13AM0.17m
11:20PM1.07m
11:46AM0.14m
11:57PM1.03m
12:19PM0.14m
light rain
cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:35
4:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:04
7:04
7:04
 mm
4
2
1
Temp °C
22
22
22
22
22
23
25
24
24
23
23
22
22
24
24
23
23
23
22
21
21
23
25
26
Feels °C
24
24
24
25
25
25
27
25
26
26
26
25
25
26
26
25
26
27
24
22
22
23
26
28
Swell 1
Height (m)
Direction
Period (s)
1.6
SW
10
1.4
SW
9
1.7
SSW
9
1.3
SW
9
1.1
SW
8
1.1
SW
8
1
SW
8
0.9
SW
8
0.5
SE
9
1.1
SSW
7
1.1
SSW
7
1
SSW
7
0.9
SSW
7
0.9
SW
7
0.8
SSW
7
0.8
SSW
7
0.7
SW
7
0.7
SW
7
0.9
SW
7
1.2
SSW
8
1.6
SSW
8
1.6
SSW
8
1.3
SSW
8
0.9
SW
7
Energy kJ
452
338
408
238
176
145
129
107
40
131
131
114
96
77
66
59
47
47
71
154
334
307
173
91
Swell 2
Height (m)
Direction
Period (s)
1.1
SSE
8
0.9
SSE
8
0.2
ESE
15
0.9
SSE
8
0.8
SSE
7
0.7
SSE
7
0.6
SSE
7
0.6
SSE
7
0.2
ESE
15
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.6
SE
10
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
0.7
E
5
0.7
E
6
Energy kJ
160
116
21
105
73
55
40
37
21
41
41
43
58
54
53
53
52
41
41
41
41
41
26
32
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
15
0.2
ESE
15
0.2
E
8
0.3
ESE
15
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.2
E
8
0.2
ESE
15
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
0.2
ESE
13
0.2
ESE
13
0.2
ESE
13
0.2
ESE
13
0.5
E
4
0.5
SE
9
0.5
SE
9
Energy kJ
22
21
5
42
29
30
29
29
5
21
21
20
19
18
18
18
18
18
18
18
17
8
41
40
Wind waves
Height (m)
Direction
Period (s)
1
SSW
8
0.4
NE
2
0.4
NE
3
0.7
ENE
4
0.2
WSW
2
Energy kJ
117
2
3
20
1
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
1
2
1
1
1
2
1
1
1
1
1
1
1
1
1
2
2
2
2
1
Distance (km)
2
2
2
2
2
13
103
6
6
2
2
2
13
13
104
104
2
2
94
94
13
13
13
2
Best forecast wave conditions in Shizuoka
Rating
(10 max)
2
2
2
2
2
2
1
1
2
1
1
1
1
1
1
1
2
2
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
3
2
2
2
2
1
2
2
2
1
2
2
2
1
2
1
2
2
2
2
1
Header Global
Rating
(10 max)
6
6
5
5
6
9
6
6
7
6
6
5
5
5
5
5
5
5
5
5
5
5
5
5
  • 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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