Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 am 14 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
21.0° C

2.2°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 (14 Jun):

  • Morning surf: Morning surf (14 Jun, local time) - 1.5ft (0.5m), 8s period with E swell.
  • Afternoon surf: Afternoon surf (14 Jun, local time) - 1.5ft (0.5m), 8s period with E swell.
  • Evening surf: Evening surf (14 Jun, local time) - 1.5ft (0.5m), 9s period with E swell.

The current surf forecast for Katahama at 10AM is: 0.5m 8s primary swell from a East direction and 0.6m 6s secondary swell from a South direction (forecast issued at 02:00am June 14). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (14 Jun)1.5ft (0.5m)8s
Afternoon (14 Jun)1.5ft (0.5m)8s
Evening (14 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

Moderate rain (total 11mm), heaviest on Sun night. Warm (max 23°C on Sun morning, min 17°C on Sun night). Winds decreasing (fresh winds from the NE on Mon morning, calm by Tue night).

Sunday
14
Monday
15
Tuesday
16
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)
1
1
0
0
0
0
0
0
0
0
0
0
0
1
2
3
3
2
2
1
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)
0.7
S
7
0.5
E
8
0.5
E
8
0.5
E
8
0.5
E
8
0.5
E
8
0.5
E
9
0.5
E
9
0.7
E
8
1.2
E
4
1.8
E
6
1.1
SE
7
2.3
E
8
2.2
E
8
2.5
E
9
2
ESE
9
1.7
ESE
9
1.5
E
9
1.3
E
9
1.2
ESE
8
1
E
8
0.9
E
8
0.8
E
8
0.7
E
8
Wave Graph
Metric surfscale
Energy kJ
42
31
31
31
32
35
38
38
66
53
199
121
652
692
928
600
474
363
263
217
136
108
82
64
Wind (km/h)
5
W
5
N
10
NE
10
E
10
SE
10
SSE
10
SE
20
SSE
20
ESE
25
NE
25
NE
35
NE
35
NE
20
NE
20
NE
10
NNE
5
NNW
5
N
5
ENE
10
E
10
S
15
SSW
10
SSW
0
SSW
Wind State
cross-off
glassy
cross
cross-on
on
on
on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross-off
off
glassy
glassy
cross-on
cross-on
cross-on
cross-on
glassy
High Tide
3:47AM1.57m
5:51PM1.46m
4:21AM1.60m
6:24PM1.49m
4:57AM1.61m
6:57PM1.52m
Low Tide
10:21PM1.02m
10:59AM0.15m
10:57PM1.03m
11:32AM0.11m
11:33PM1.02m
12:05PM0.10m
clear
clear
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
cloud
part cloud
cloud
cloud
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
<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>
7:00
7:00
7:00
 mm
1
1
1
3
5
Temp °C
22
20
20
22
23
22
23
19
18
17
17
18
20
21
21
20
19
19
18
19
21
21
21
20
Feels °C
24
22
21
23
24
23
23
17
15
14
13
13
15
18
19
20
19
20
18
19
21
20
22
22
Swell 1
Height (m)
Direction
Period (s)
0.7
S
7
0.6
S
6
0.6
S
6
0.6
S
6
0.5
S
6
0.5
E
8
0.5
E
9
0.5
E
9
0.7
S
5
0.5
SSW
6
0.1
SE
15
1.1
SE
7
0.1
E
15
2.2
E
8
2.1
ESE
9
2
ESE
9
1.7
ESE
9
1.5
E
9
1.3
E
9
1.2
ESE
8
1
E
8
0.9
E
8
0.8
E
8
0.7
E
8
Energy kJ
42
28
26
26
18
35
38
38
26
19
8
121
4
692
647
600
474
363
263
217
136
108
82
64
Swell 2
Height (m)
Direction
Period (s)
0.5
SW
8
0.5
E
8
0.5
E
8
0.5
E
8
0.5
E
8
0.4
SW
7
0.3
SW
7
0.3
SW
7
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
15
0.1
SW
7
0.5
S
7
0.4
SSE
8
0.4
SSE
7
0.4
SSW
7
0.4
SSW
7
0.4
SSW
7
0.4
SSW
7
0.4
SSW
7
Energy kJ
31
31
31
31
32
14
8
8
6
6
6
8
2
28
19
18
16
19
18
19
19
Swell 3
Height (m)
Direction
Period (s)
0.5
E
8
0.5
SW
8
0.4
SW
8
0.4
SW
7
0.4
SW
7
0.1
SE
15
0.2
SSE
6
0.1
SE
15
0.1
SW
7
0.1
SE
9
0.1
E
15
0.1
E
15
0.1
SW
7
0.3
SSW
7
0.3
SSW
7
0.1
SE
13
0.3
SSE
7
0.3
SSE
7
0.2
SSE
6
0.3
SSE
6
Energy kJ
30
29
20
14
14
8
3
8
2
3
4
4
2
9
10
7
9
9
4
7
Wind waves
Height (m)
Direction
Period (s)
0.5
S
6
0.5
S
4
0.8
S
4
0.7
E
8
1.2
E
4
1.8
E
6
1.8
ENE
6
2.3
E
8
2.5
E
9
Energy kJ
18
9
25
66
53
199
229
652
928
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
2
4
3
4
1
1
1
2
2
1
1
1
1
Distance (km)
2
6
13
13
208
208
208
208
208
104
351
334
94
94
13
2
2
2
6
13
104
6
6
6
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
1
1
4
3
4
3
3
2
2
2
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
4
3
4
3
4
3
3
4
4
3
2
1
2
2
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
5
5
5
9
5
5
5
5
5
4
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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