Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 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 (28 Jun):

  • Afternoon surf: Afternoon surf (28 Jun, local time) - 0.5ft (0.2m), 16s period with ESE swell.
  • Evening surf: Evening surf (28 Jun, local time) - 3.5ft (1.0m), 8s period with SSE swell.

The current surf forecast for Katahama at 7PM is: 1.0m 8s primary swell from a South-southeast direction (forecast issued at 02:00pm June 28). An open ocean swell of 1.6m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (28 Jun)--
Afternoon (28 Jun)0.5ft (0.2m)16s
Evening (28 Jun)3.5ft (1.0m)8s

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 7mm), mostly falling on Sun afternoon. Warm (max 26°C on Wed morning, min 22°C on Sun afternoon). Wind will be generally light.

Sun
28
Monday
29
Tuesday
30
Wed
1
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)
1
0
1
1
0
1
1
0
0
0
0
0
1
1
1
0
0
0
1
1
1
1
1
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)
0.2
ESE
16
0.2
ESE
16
1.1
SSE
8
1
SSE
8
0.2
ESE
15
0.9
SSE
8
0.7
SSE
7
0.7
SSE
7
0.5
SE
9
0.6
SSE
7
0.5
SE
9
0.5
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
10
0.6
SE
10
0.6
SE
9
0.6
SE
9
0.5
SE
9
0.5
SE
9
0.8
S
7
0.5
SE
9
0.5
SE
9
0.5
SE
9
Wave Graph
Metric surfscale
Energy kJ
25
24
160
140
21
105
57
57
41
37
40
41
53
54
58
58
52
52
41
41
55
41
41
41
Wind (km/h)
5
SW
10
SW
10
WSW
10
WSW
5
WSW
5
WSW
5
ENE
10
E
15
SE
10
SSE
10
SSW
5
SW
5
NW
5
N
5
NNE
10
E
10
S
10
S
5
S
0
E
5
NNW
10
NNE
10
NE
15
ENE
Wind State
glassy
cross
cross-off
cross-off
cross-off
glassy
glassy
cross-on
on
on
cross
cross
glassy
glassy
cross-off
cross-on
cross-on
cross-on
glassy
glassy
glassy
cross-off
cross-off
cross
High Tide
5:38PM1.47m
3:57AM1.58m
6:08PM1.51m
4:35AM1.61m
6:37PM1.55m
5:15AM1.63m
Low Tide
10:39AM0.22m
10:43PM1.10m
11:13AM0.17m
11:20PM1.07m
11:46AM0.14m
11:57PM1.03m
light rain
light rain
light rain
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
<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
2
3
4
Temp °C
23
22
22
22
22
22
22
23
24
25
24
23
23
22
22
23
24
24
23
23
23
22
22
24
Feels °C
27
25
24
24
24
25
25
25
25
27
26
26
26
25
25
25
26
26
26
27
26
24
24
25
Swell 1
Height (m)
Direction
Period (s)
2.5
SSW
10
2.1
SSW
10
1.6
SW
10
1.4
SW
9
1.7
SSW
9
1.2
SW
9
1.1
SW
8
1.1
SW
8
0.9
SW
8
0.9
SW
8
1
SSW
7
1
SSW
8
1
SSW
8
0.9
SSW
8
0.8
SSW
8
0.8
SSW
7
0.7
SW
7
0.8
SSW
7
0.9
SW
7
0.9
SW
7
0.9
SSW
7
1.1
SSW
7
1.2
SSW
7
0.9
SW
7
Energy kJ
1220
811
452
338
408
216
176
145
109
104
114
117
117
101
72
70
54
62
71
75
90
124
144
91
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
16
0.2
ESE
16
1.1
SSE
8
1
SSE
8
0.2
ESE
15
0.9
SSE
8
0.7
SSE
7
0.7
SSE
7
0.6
SSE
7
0.6
SSE
7
0.5
SE
9
0.5
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
10
0.6
SE
10
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
S
6
Energy kJ
25
24
160
140
21
105
57
57
36
37
40
41
53
54
58
58
52
52
41
41
41
41
41
38
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
16
0.2
ESE
15
0.2
ESE
15
0.2
ESE
15
0.2
E
8
0.3
ESE
15
0.4
SE
9
0.4
SE
9
0.5
SE
9
0.4
SE
9
0.2
ESE
15
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
SE
9
Energy kJ
25
23
22
21
5
42
29
30
41
29
21
21
21
20
19
18
18
18
18
18
18
18
17
41
Wind waves
Height (m)
Direction
Period (s)
0.8
S
7
Energy kJ
55
Nearest Offshore or Glassy
Rating
(10 max)
3
1
2
2
1
2
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
2
6
2
2
2
2
2
13
104
105
6
2
2
2
2
13
104
104
2
2
2
2
2
13
Best forecast wave conditions in Shizuoka
Rating
(10 max)
4
1
2
2
2
2
2
2
1
1
1
1
1
1
1
1
2
1
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
2
4
3
2
2
2
2
2
2
1
1
2
2
1
1
1
1
1
1
2
2
2
1
Header Global
Rating
(10 max)
9
8
6
6
5
5
6
5
6
6
7
6
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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