Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 am 19 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
21.3° 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 (19 Jun):

  • Morning surf: Morning surf (19 Jun, local time) - 2ft (0.6m), 6s period with SSE swell.
  • Afternoon surf: Afternoon surf (19 Jun, local time) - 1ft (0.3m), 10s period with SE swell.
  • Evening surf: Evening surf (19 Jun, local time) - 1ft (0.3m), 10s period with SE swell.

The current surf forecast for Katahama at 5AM is: 0.7m 6s primary swell from a South-southeast direction (forecast issued at 02:00am June 19). An open ocean swell of 1.1m 8s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (19 Jun)2ft (0.6m)6s
Afternoon (19 Jun)1ft (0.3m)10s
Evening (19 Jun)1ft (0.3m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 53mm), heaviest during Sat night. Warm (max 28°C on Sun afternoon, min 20°C on Sat night). Wind will be generally light.

Friday
19
Saturday
20
Sunday
21
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
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)
0.8
SSE
7
0.2
SSE
11
0.7
SSE
6
0.6
SSE
6
0.5
SSE
6
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.4
SE
10
0.3
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
9
1.5
SW
6
0.3
SE
9
0.3
SE
9
0.3
SE
11
0.3
SE
11
0.3
SE
11
0.4
SE
9
Wave Graph
Metric surfscale
Energy kJ
56
11
33
27
19
16
16
16
15
15
15
24
15
24
24
24
23
159
13
13
19
19
19
30
Wind (km/h)
10
WNW
5
N
5
NNE
10
E
10
SE
10
SE
5
SE
5
ENE
10
ENE
10
ENE
10
NNE
10
NE
5
NE
10
NE
10
NE
10
ENE
5
NE
5
NNW
0
E
5
WSW
20
WSW
25
WSW
25
WSW
20
WSW
Wind State
cross-off
glassy
glassy
cross-on
on
on
on
cross-on
cross
cross
cross-off
cross
cross
cross
cross
cross
glassy
cross-off
glassy
glassy
cross-off
cross-off
cross-off
cross-off
High Tide
7:06AM1.51m
8:52PM1.54m
7:58AM1.41m
9:38PM1.52m
9:00AM1.30m
Low Tide
1:49AM0.93m
2:02PM0.26m
2:47AM0.90m
2:47PM0.38m
3:51AM0.85m
3:36PM0.52m
rain showers
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
cloud
mod rain
heavy rain
mod rain
light rain
rain showers
rain showers
clear
clear
part cloud
<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>
7:01
7:02
7:02
 mm
1
1
1
2
7
20
8
5
8
1
Temp °C
22
21
22
23
24
24
24
23
23
22
22
22
22
21
21
20
20
21
21
22
27
28
27
25
Feels °C
25
24
25
25
26
26
27
26
26
24
24
24
25
23
23
22
23
24
24
26
27
26
26
25
Swell 1
Height (m)
Direction
Period (s)
1.3
SW
8
1.5
SSW
8
1.1
SW
8
0.9
SW
8
0.8
SW
8
0.8
SW
7
0.9
SSW
7
0.7
SW
7
0.7
SW
7
0.8
SW
7
0.8
SW
7
0.8
SSW
7
0.8
SW
7
0.8
SW
7
0.7
SW
7
0.7
SW
6
0.4
SE
9
0.4
SE
9
0.3
SE
9
2.1
SW
8
0.3
SE
9
0.3
SE
9
0.3
SE
9
0.4
SE
9
Energy kJ
214
292
157
96
79
77
90
48
47
57
57
59
55
55
46
42
23
22
13
464
13
13
13
30
Swell 2
Height (m)
Direction
Period (s)
0.8
SSE
7
0.2
SSE
11
0.7
SSE
6
0.6
SSE
6
0.5
SSE
6
0.4
SSE
6
0.3
SE
10
0.3
SSE
5
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.4
SE
10
0.3
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.2
E
9
0.2
E
5
0.2
ENE
10
0.3
SE
9
0.2
E
9
0.3
SE
11
0.3
SE
11
0.2
E
10
Energy kJ
56
11
33
27
19
10
16
6
15
15
15
24
15
24
24
24
6
2
9
13
7
19
19
8
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
11
0.1
E
10
0.2
SSE
11
0.2
ESE
8
0.3
SE
10
0.3
SE
10
0.2
E
8
0.3
SE
10
0.3
SSE
5
0.2
E
9
0.2
E
8
0.2
E
8
0.2
E
8
0.1
SE
12
0.1
SE
12
0.2
E
9
0.2
E
5
0.2
SSE
12
0.2
SSE
12
0.2
SSE
11
0.3
SE
11
0.2
E
10
0.2
E
11
Energy kJ
11
2
11
6
16
16
5
16
5
6
6
6
6
6
6
7
2
13
13
12
19
7
9
Wind waves
Height (m)
Direction
Period (s)
1.6
SW
8
0.3
NE
2
0.4
ENE
3
0.3
E
3
0.3
E
3
0.2
E
3
1
SSW
6
1.5
SW
6
2.1
SW
7
2.4
SW
8
2
SW
8
1.9
SW
8
1.9
SW
8
1.8
SW
8
Energy kJ
322
1
3
2
2
1
75
159
416
664
444
470
481
437
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
2
3
2
2
2
1
Distance (km)
2
2
2
13
13
104
104
13
13
13
13
13
13
2
13
236
2
2
2
2
65
104
103
112
Best forecast wave conditions in Shizuoka
Rating
(10 max)
1
1
2
1
1
1
1
1
1
1
1
1
1
1
2
2
3
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
2
1
2
3
3
3
3
3
2
Header Global
Rating
(10 max)
6
5
5
5
6
6
6
4
4
4
4
4
5
5
4
5
9
5
8
9
9
9
8
7
  • 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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