Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 pm 16 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
21.2° 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 (16 Jun):

  • Afternoon surf: Afternoon surf (16 Jun, local time) - 3.5ft (1.0m), 8s period with E swell.
  • Evening surf: Evening surf (16 Jun, local time) - 2.5ft (0.8m), 8s period with E swell.

The current surf forecast for Katahama at 6PM is: 0.9m 8s primary swell from a East direction (forecast issued at 02:00pm June 16). An open ocean swell of 0.6m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (16 Jun)--
Afternoon (16 Jun)3.5ft (1.0m)8s
Evening (16 Jun)2.5ft (0.8m)8s

Table - waves today at Katahama. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu morning, min 20°C on Tue night). Wind will be generally light.

Tue
16
Wednesday
17
Thursday
18
Fri
19
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)
0
0
0
0
1
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
1
0
0
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)
1.1
E
9
1
E
8
0.9
E
8
0.8
E
8
0.7
E
8
0.6
E
8
0.6
E
8
0.5
E
8
0.7
S
7
0.4
E
8
0.8
SE
5
0.8
SSE
6
0.8
SSE
6
0.3
E
9
0.6
SE
6
0.7
ENE
4
0.3
SE
10
0.8
ESE
6
0.3
SE
11
1
SSE
7
0.8
SSE
6
0.7
SE
6
0.6
SE
6
0.4
ESE
7
Wave Graph
Metric surfscale
Energy kJ
181
144
116
90
71
51
52
35
44
23
29
39
40
14
26
11
16
39
18
85
52
38
27
15
Wind (km/h)
10
S
15
SSW
5
S
5
SE
0
SSE
5
NE
10
NE
15
E
20
SE
20
ESE
20
ESE
10
ENE
15
NNE
5
NE
15
NE
10
ENE
5
ESE
15
SW
20
WSW
15
WSW
10
W
5
NNW
5
NE
5
ESE
Wind State
cross-on
cross-on
cross-on
on
glassy
glassy
cross
cross-on
on
on
on
cross-on
cross-off
cross
cross
cross
cross-on
cross
cross-off
cross-off
cross-off
glassy
glassy
cross-on
High Tide
6:57PM1.52m
5:36AM1.61m
7:32PM1.53m
6:19AM1.57m
8:11PM1.54m
7:06AM1.51m
Low Tide
12:05PM0.10m
00:14AM1.00m
12:42PM0.11m
00:58AM0.97m
1:20PM0.17m
1:49AM0.93m
part cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
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
7:01
7:01
7:01
 mm
Temp °C
21
22
21
21
21
20
20
21
21
21
21
21
20
20
21
23
25
25
24
22
22
21
21
23
Feels °C
22
22
23
23
24
22
21
20
20
19
20
21
20
21
21
23
26
25
23
23
24
23
23
25
Swell 1
Height (m)
Direction
Period (s)
1.1
E
9
1
E
8
0.9
E
8
0.8
E
8
0.7
E
8
0.6
E
8
0.6
E
8
0.6
SSW
7
0.7
S
7
0.4
SW
9
0.6
SW
8
0.8
SSE
6
1.1
SSW
8
1.7
S
7
1.4
SSW
7
1.5
S
7
1.5
S
7
1.7
SW
10
1.8
SSW
9
1.2
SW
9
1.1
SW
8
0.9
SW
8
0.8
SW
8
0.8
SW
7
Energy kJ
181
144
116
90
71
51
52
36
44
27
54
39
142
311
203
199
211
569
549
210
149
104
79
75
Swell 2
Height (m)
Direction
Period (s)
0.6
SSW
8
0.5
SSW
7
0.6
SSW
7
0.6
SSW
7
0.5
SSW
7
0.4
SSW
7
0.5
SSW
7
0.5
E
8
0.4
E
8
0.4
E
8
0.4
E
9
0.7
SW
8
0.8
SSE
6
0.3
E
9
0.6
SE
6
0.2
SSE
10
0.5
SW
12
0.8
ESE
6
0.3
SE
11
1
SSE
7
0.8
SSE
6
0.7
SE
6
0.6
SE
6
0.4
SSE
6
Energy kJ
44
31
42
40
27
19
27
35
23
23
23
62
40
14
26
10
71
39
18
85
52
38
27
11
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
E
13
0.2
S
6
0.1
SE
9
0.1
SE
6
0.1
SE
10
0.4
SW
6
0.1
SE
10
0.1
SE
10
0.3
E
9
0.1
SE
10
0.3
E
9
0.1
E
12
0.3
SE
10
0.2
SSE
10
0.1
SE
15
0.1
SE
11
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.4
ESE
7
Energy kJ
7
7
7
7
3
3
3
2
4
11
4
4
14
4
14
3
16
10
9
5
11
11
11
15
Wind waves
Height (m)
Direction
Period (s)
0.5
S
4
0.1
SE
6
0.7
SE
4
0.8
SE
5
0.6
ENE
9
0.6
NE
4
2.2
SSW
7
0.6
NE
3
0.7
ENE
4
0.3
NE
3
0.9
ENE
5
Energy kJ
10
1
15
29
58
10
503
9
11
2
38
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
1
1
1
1
1
2
2
2
2
1
3
2
2
2
1
2
2
1
1
1
1
Distance (km)
104
208
208
13
6
13
13
208
208
208
208
351
2
13
13
13
13
6
65
2
2
2
2
13
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
1
1
1
3
2
2
2
1
2
2
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
3
2
2
2
2
2
2
2
3
3
2
2
3
2
2
2
1
2
2
2
2
2
2
Header Global
Rating
(10 max)
5
5
5
5
4
4
4
5
5
5
7
5
4
4
5
5
9
9
7
6
5
6
6
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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