Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 pm 13 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):

  • Evening surf: Evening surf (14 Jun, local time) - 2.5ft (0.7m), 7s period with S swell.

The current surf forecast for Katahama at 12AM is: 0.7m 7s primary swell from a South direction (forecast issued at 08:00pm June 13). An open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (14 Jun)--
Afternoon (14 Jun)--
Evening (14 Jun)2.5ft (0.7m)7s

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 14mm), heaviest on Sun night. Warm (max 22°C on Sat night, min 17°C on Sun night). Winds decreasing (fresh winds from the NE on Mon morning, calm by Mon night).

Sat
13
Sunday
14
Monday
15
Tuesday
16
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)
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
3
3
2
2
2
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)
0.5
E
8
0.7
S
7
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
0.1
SE
15
2.4
E
8
2.3
E
8
2.2
ESE
9
2.1
ESE
9
1.6
E
9
1.4
E
9
1.3
E
9
1.2
E
9
1
E
9
0.9
E
8
Wave Graph
Metric surfscale
Energy kJ
29
42
42
31
31
31
32
35
37
38
66
53
202
8
705
737
724
692
445
341
276
230
154
111
Wind (km/h)
15
SSW
10
SW
5
WSW
5
N
10
NE
10
E
10
SE
10
SE
15
SSE
15
SE
15
ENE
30
NE
30
NE
35
NE
35
ENE
25
ENE
15
ENE
5
NNE
10
NNW
5
N
5
NE
5
E
10
S
15
SSW
Wind State
cross
cross
cross-off
cross-off
cross
cross-on
on
on
on
on
cross-on
cross
cross
cross
cross
cross
cross
cross-off
cross-off
glassy
glassy
glassy
cross-on
cross-on
High Tide
5:17PM1.42m
3:47AM1.57m
5:51PM1.46m
4:21AM1.60m
6:24PM1.49m
4:57AM1.61m
Low Tide
10:21PM1.02m
10:59AM0.15m
10:57PM1.03m
11:32AM0.11m
11:33PM1.02m
12:05PM0.10m
clear
clear
clear
clear
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
clear
cloud
part cloud
part cloud
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
7:00
 mm
2
1
1
4
5
1
Temp °C
23
22
21
20
20
22
22
22
22
19
18
17
17
18
20
21
21
20
19
19
19
19
21
22
Feels °C
23
23
23
22
21
23
23
23
21
18
17
13
13
12
14
17
19
20
19
20
20
20
21
22
Swell 1
Height (m)
Direction
Period (s)
0.6
SW
8
0.5
SW
8
0.7
S
7
0.6
S
6
0.6
S
6
0.6
S
6
0.5
E
8
0.6
S
6
0.5
E
9
0.7
S
5
0.6
S
6
0.4
SSW
6
0.2
SSW
6
0.1
SE
15
0.6
S
9
0.7
SSE
9
2.2
ESE
9
2.1
ESE
9
1.6
E
9
1.4
E
9
1.3
E
9
1.2
E
9
1
E
9
0.9
E
8
Energy kJ
53
32
42
28
27
26
32
25
37
24
23
11
4
8
60
82
724
692
445
341
276
230
154
111
Swell 2
Height (m)
Direction
Period (s)
0.5
E
8
0.5
E
8
0.5
SW
8
0.5
E
8
0.5
E
8
0.5
E
8
0.4
SW
7
0.5
E
8
0.3
SW
7
0.5
E
9
0.1
SE
12
0.1
SE
12
0.1
SE
15
0.1
S
11
0.1
E
15
0.8
SSE
9
0.9
SSE
8
0.7
SE
8
0.6
SSE
8
0.4
SW
7
0.4
SSW
7
0.4
SW
7
Energy kJ
29
30
31
31
31
31
14
35
8
38
6
6
8
2
4
106
111
67
42
13
20
12
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
16
0.1
SE
16
0.5
E
8
0.5
SW
8
0.4
SW
8
0.4
SW
7
0.1
SE
15
0.4
SW
7
0.2
SSW
6
0.3
SW
7
0.1
SW
7
0.1
SE
9
0.1
SE
12
0.1
E
14
0.3
SSW
7
0.4
SSW
7
0.1
SE
13
0.1
SE
13
0.3
SSE
6
Energy kJ
10
10
30
29
20
14
8
14
4
7
2
3
6
4
9
17
7
7
8
Wind waves
Height (m)
Direction
Period (s)
0.7
S
7
0.7
S
7
0.6
S
6
0.5
S
4
0.6
S
6
0.7
E
8
1.2
E
4
1.8
E
6
2.3
E
7
2.4
E
8
2.3
E
8
3
E
9
Energy kJ
44
42
26
8
22
66
53
202
469
705
737
1192
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
3
3
1
1
1
1
1
1
1
Distance (km)
65
6
2
6
13
13
208
208
208
208
208
334
334
369
352
94
13
2
2
2
2
2
65
6
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
1
1
1
1
3
3
3
3
2
2
2
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
2
2
3
3
3
3
3
3
2
4
3
2
1
Header Global
Rating
(10 max)
5
5
5
5
5
4
4
5
5
5
5
5
4
4
5
5
5
5
4
5
4
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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