Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 pm 06 Jul 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
24.1° C

1.1°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 Jul):

  • Afternoon surf: Afternoon surf (06 Jul, local time) - 2ft (0.6m), 15s period with SE swell.
  • Evening surf: Evening surf (06 Jul, local time) - 2.5ft (0.8m), 14s period with SE swell.

The current surf forecast for Katahama at 10PM is: 0.8m 14s primary swell from a Southeast direction and 0.5m 11s secondary swell from a Southeast direction, 1.2m 5s secondary swell from a East-southeast direction (forecast issued at 02:00pm July 06). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (06 Jul)--
Afternoon (06 Jul)2ft (0.6m)15s
Evening (06 Jul)2.5ft (0.8m)14s

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 8mm), mostly falling on Mon afternoon. Warm (max 25°C on Tue morning, min 21°C on Mon afternoon). Wind will be generally light.

Mon
6
Tuesday
7
Wednesday
8
Thu
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)
1
0
0
0
1
0
2
1
1
1
2
2
3
3
4
3
3
2
3
3
4
4
4
3
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)
0.6
SSE
15
0.6
SE
15
0.8
SE
14
0.8
SE
14
0.8
SE
13
0.8
SE
13
1
SE
13
0.8
SSE
16
0.9
SSE
16
1.4
SE
15
1.5
SE
15
1.8
SE
15
1.9
SE
16
1.7
SSE
16
1.9
SSE
15
2
SSE
15
1.3
SSE
18
2.1
SSE
16
2.2
SSE
16
2.2
SSE
15
2.2
SSE
15
2.1
SSE
14
2.3
SSE
15
2.3
SSE
15
Wave Graph
Metric surfscale
Energy kJ
144
171
273
221
212
235
305
322
441
860
966
1436
1806
1460
1589
1739
1057
2219
2354
2094
2111
1728
2228
2479
Wind (km/h)
15
ENE
15
NE
20
ENE
20
ENE
15
ENE
20
NE
15
NE
15
ENE
10
E
10
SE
10
SE
10
ESE
5
ENE
5
NE
5
NNE
5
E
10
SSE
10
SSE
10
SSE
5
ESE
5
ESE
0
NNW
0
NNE
10
SE
Wind State
cross
cross
cross
cross-on
cross
cross
cross
cross
cross-on
on
on
on
cross-on
cross
glassy
cross-on
on
on
on
on
glassy
glassy
glassy
on
High Tide
9:25AM1.30m
10:17PM1.55m
10:51AM1.20m
11:07PM1.52m
12:53PM1.16m
00:05AM1.49m
Low Tide
3:36PM0.64m
5:07AM0.72m
4:27PM0.81m
6:22AM0.66m
5:29PM0.97m
7:38AM0.57m
light rain
light rain
light rain
light rain
light rain
light rain
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:39
4:39
4:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
7:02
7:02
7:02
 mm
4
2
3
1
1
1
Temp °C
21
21
21
21
21
21
21
23
25
25
24
24
23
23
22
23
24
24
24
23
23
23
22
24
Feels °C
22
22
21
21
22
21
21
23
26
25
24
26
25
25
24
25
25
25
26
25
26
26
25
26
Swell 1
Height (m)
Direction
Period (s)
0.6
SSE
15
0.6
SE
15
0.8
SE
14
0.8
SE
14
0.8
SE
13
0.8
SE
13
1
SE
13
0.8
SE
12
0.9
SSE
16
1.4
SE
15
1.5
SE
15
1.8
SE
15
1.9
SE
16
1.7
SSE
16
1.9
SSE
15
2
SSE
15
1.6
SSE
14
2.1
SSE
16
2.2
SSE
16
2.2
SSE
15
2.2
SSE
15
2.1
SSE
14
2.3
SSE
15
2.3
SSE
15
Energy kJ
144
171
273
221
212
235
305
197
441
860
966
1436
1806
1460
1589
1739
1057
2219
2354
2094
2111
1728
2228
2479
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
6
0.5
SE
12
0.4
SW
6
0.5
SE
11
0.5
SE
11
0.6
SSE
16
1
ESE
6
0.8
SSE
16
0.8
SE
12
0.4
SW
7
0.3
SW
6
0.3
SW
6
0.3
SW
7
0.8
ESE
8
0.9
ESE
8
0.9
ESE
8
1.3
SSE
18
0.9
ESE
8
0.8
ESE
8
0.8
ESE
8
0.8
ESE
8
0.9
SSE
18
0.7
ESE
8
0.7
ESE
8
Energy kJ
14
68
13
59
58
173
68
322
197
15
6
6
7
90
115
118
1015
115
92
92
90
534
70
68
Swell 3
Height (m)
Direction
Period (s)
0.3
SE
12
0.4
SW
6
0.1
S
7
0.4
SW
6
0.3
SW
6
0.3
SW
6
0.6
SSE
17
0.3
SW
7
0.3
SW
7
0.2
SSE
20
0.4
SW
6
0.3
SW
6
0.4
SSE
21
0.5
SSE
20
0.3
SW
6
1
E
8
0.9
ESE
8
0.9
S
18
0.5
S
20
0.9
ESE
8
0.8
ESE
8
0.5
S
20
Energy kJ
23
14
1
13
6
6
202
7
7
37
10
6
144
223
6
140
115
544
198
112
90
190
Wind waves
Height (m)
Direction
Period (s)
1
ESE
7
1
ESE
7
1.1
ESE
7
1.2
ESE
5
1.3
ESE
5
1.2
ESE
6
0.9
ESE
6
0.9
ESE
5
0.9
ESE
5
0.8
ESE
6
0.9
ESE
8
Energy kJ
91
91
108
66
85
87
72
46
47
42
109
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
1
1
2
3
3
1
2
3
3
4
4
4
4
3
3
3
4
4
4
4
4
Distance (km)
85
103
103
85
85
13
13
13
85
104
104
103
13
13
2
13
104
104
104
13
2
2
2
13
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
1
2
3
3
1
4
4
4
4
4
4
4
4
4
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
3
3
3
4
4
4
4
4
4
4
5
4
4
4
4
4
5
4
5
4
Header Global
Rating
(10 max)
5
7
7
5
9
8
8
8
7
5
5
5
5
7
9
9
9
8
7
8
9
9
9
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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