Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 pm 27 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
23.0° C

1.2°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 (28 Jun):

  • Evening surf: Evening surf (28 Jun, local time) - 0.5ft (0.2m), 16s period with ESE swell.

The current surf forecast for Katahama at 12AM is: 0.2m 16s primary swell from a East-southeast direction (forecast issued at 08:00pm June 27). An open ocean swell of 4.0m 12s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (28 Jun)--
Afternoon (28 Jun)--
Evening (28 Jun)0.5ft (0.2m)16s

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 9mm), mostly falling on Sun night. Warm (max 25°C on Sun morning, min 22°C on Sat night). Wind will be generally light.

Sat
27
Sunday
28
Monday
29
Tuesday
30
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
0
0
0
0
0
1
1
0
0
0
0
0
0
0
1
1
1
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)
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
1
SSE
8
1.1
SSE
8
0.2
ESE
15
0.9
SSE
8
0.8
SSE
7
0.7
SSE
7
0.4
SE
9
0.6
SSE
9
0.5
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.5
SE
9
Wave Graph
Metric surfscale
Energy kJ
25
25
25
25
25
25
25
24
151
167
21
107
73
55
29
53
41
52
53
71
54
54
54
41
Wind (km/h)
5
ENE
10
W
10
WSW
10
W
5
WSW
5
WSW
10
SW
15
SW
15
WSW
15
WSW
5
SSW
5
NE
10
ENE
10
E
10
SE
10
SE
10
S
5
SSE
5
N
5
NE
5
NE
10
ENE
10
SE
15
SE
Wind State
glassy
cross-off
cross-off
cross-off
glassy
cross-off
cross
cross
cross-off
cross-off
cross-on
cross
cross
cross-on
on
on
cross-on
glassy
glassy
glassy
cross
cross-on
on
on
High Tide
5:04PM1.42m
3:19AM1.54m
5:38PM1.47m
3:57AM1.58m
6:08PM1.51m
4:35AM1.61m
Low Tide
10:02PM1.10m
10:39AM0.22m
10:43PM1.10m
11:13AM0.17m
11:20PM1.07m
11:46AM0.14m
rain showers
clear
clear
part cloud
part cloud
rain showers
part cloud
light rain
light rain
light rain
light rain
cloud
cloud
part cloud
thunderstorm
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:35
4:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:04
7:04
7:04
 mm
4
1
1
2
3
1
1
Temp °C
23
23
22
22
22
24
25
23
22
22
22
22
22
23
24
24
23
23
22
22
22
24
24
24
Feels °C
27
26
24
24
25
27
27
24
23
24
25
25
24
26
27
26
25
27
26
25
25
26
26
25
Swell 1
Height (m)
Direction
Period (s)
3
SSW
12
4
SSW
12
4
SSW
12
4
SSW
12
3.5
SSW
11
3
SSW
11
2.5
SSW
10
2.2
SSW
10
1
SSE
8
1.1
SSE
8
1.8
SSW
8
1.4
SW
9
1.3
SW
8
1.1
SW
8
1.2
SSW
8
1
SW
8
1
SSW
8
0.9
SSW
8
0.9
SSW
7
0.9
SW
8
0.9
SW
7
0.8
SSW
7
0.9
SSW
7
0.9
SSW
7
Energy kJ
2555
4129
4609
3937
2681
1873
1220
838
151
167
479
293
216
167
154
113
117
98
96
82
79
66
77
73
Swell 2
Height (m)
Direction
Period (s)
0.8
SW
12
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
E
8
0.2
E
9
0.2
ESE
16
0.2
ESE
15
0.2
ESE
15
0.2
ESE
15
0.9
SSE
8
0.8
SSE
7
0.7
SSE
7
0.4
SE
9
0.6
SSE
9
0.5
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.6
SE
9
0.5
SE
9
Energy kJ
197
25
25
25
25
5
6
24
22
21
21
107
73
55
29
53
41
52
53
71
54
54
54
41
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
16
0.2
E
8
0.2
ESE
16
0.2
E
8
0.2
ESE
16
0.2
ESE
16
0.2
E
9
0.2
E
9
0.2
E
8
0.2
E
8
0.3
ESE
15
0.4
SE
9
0.4
SE
9
0.2
ESE
15
0.2
ESE
15
0.3
E
4
0.2
ESE
15
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
0.2
ESE
14
Energy kJ
25
6
25
5
25
25
6
6
5
5
42
22
31
21
21
2
21
21
20
19
18
18
18
Wind waves
Height (m)
Direction
Period (s)
1.7
SW
10
1.6
SW
9
0.5
E
3
0.7
E
4
0.6
E
4
0.1
NE
5
Energy kJ
535
437
5
14
11
1
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
4
4
3
3
3
2
2
1
2
2
1
1
1
1
1
1
1
1
1
Distance (km)
2
2
2
2
2
2
65
65
2
2
65
13
94
13
13
104
104
2
2
2
13
13
104
104
Best forecast wave conditions in Shizuoka
Rating
(10 max)
4
4
4
4
4
4
4
3
3
3
3
2
1
2
2
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
4
4
4
4
4
4
3
3
3
3
2
2
2
1
1
1
1
2
2
2
1
2
Header Global
Rating
(10 max)
5
5
5
5
6
9
9
8
7
6
5
5
9
5
6
6
6
5
6
9
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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