Katahama Surf Break
Lat Long: 34.72° N 138.22° E

Katahama 48 hour detailed Surf Forecast

Weather Forecast for Katahama

Issued: 2 am 08 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
21.0° C

1.8°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 (08 Jun):

  • Afternoon surf: Afternoon surf (08 Jun, local time) - 4.5ft (1.3m), 8s period with E swell.
  • Evening surf: Evening surf (08 Jun, local time) - 3.5ft (1.0m), 8s period with E swell.

The current surf forecast for Katahama at 7AM is: 1.6m 6s primary swell from a East-northeast direction and 1.3m 7s secondary swell from a East-southeast direction (forecast issued at 02:00am June 08). An open ocean swell of 2.2m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (08 Jun)--
Afternoon (08 Jun)4.5ft (1.3m)8s
Evening (08 Jun)3.5ft (1.0m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Mon night. Warm (max 24°C on Mon morning, min 19°C on Tue night). Wind will be generally light.

Monday
8
Tuesday
9
Wednesday
10
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)
0
0
0
0
2
0
1
2
0
1
1
1
0
0
1
1
0
0
0
0
0
0
1
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)
1.6
ESE
6
2
E
6
1.6
ENE
6
2.5
SSW
11
1.6
E
8
1.3
E
8
1.1
E
8
1
E
8
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
E
9
0.6
E
9
0.5
E
9
0.5
E
8
0.5
E
8
0.5
E
8
0.4
E
8
0.8
E
4
1
E
5
0.6
E
4
Wave Graph
Metric surfscale
Energy kJ
161
283
155
0
291
208
165
138
138
112
91
69
50
51
53
55
38
35
32
32
21
24
51
14
Wind (km/h)
30
ENE
35
NE
25
NE
25
NE
0
WNW
20
SW
25
WSW
15
WSW
15
W
10
WNW
15
W
10
W
10
ESE
10
ESE
0
ESE
10
W
5
W
5
N
10
NE
10
ENE
15
E
10
E
0
SE
5
NNW
Wind State
cross-on
cross
cross
cross
glassy
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
on
cross-on
glassy
cross-off
cross-off
glassy
cross
cross-on
cross-on
cross-on
glassy
cross-off
High Tide
11:35PM1.44m
11:43AM1.12m
00:32AM1.45m
1:33PM1.15m
1:22AM1.46m
2:52PM1.22m
Low Tide
6:15AM0.78m
5:36PM0.69m
7:26AM0.66m
6:46PM0.81m
8:24AM0.53m
7:54PM0.89m
heavy rain
light rain
rain showers
clear
part cloud
part cloud
part cloud
cloud
light rain
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
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>
6:58
6:58
6:59
 mm
11
5
1
1
Temp °C
18
19
20
23
24
24
23
22
21
20
20
20
22
21
21
21
20
19
20
22
23
23
22
21
Feels °C
15
15
17
21
27
23
21
23
22
21
20
20
23
21
24
22
21
20
21
22
22
23
24
22
Swell 1
Height (m)
Direction
Period (s)
0.3
SW
6
0.7
SSW
9
2
SSW
11
2.5
SSW
11
2.4
SSW
10
1.7
SW
10
1.3
SW
10
1.2
SW
10
1.1
SW
9
0.9
E
8
0.8
SW
9
0.7
E
8
1.1
WSW
8
0.9
WSW
8
0.9
SW
8
0.6
E
9
0.5
E
9
1.4
SW
8
1.3
SSW
8
1.1
SSW
8
1.1
SSW
8
1.2
SSW
9
1.3
SSW
9
1.3
SSW
9
Energy kJ
6
65
906
1568
1215
580
348
262
188
112
104
69
165
112
91
55
38
226
202
161
157
227
280
257
Swell 2
Height (m)
Direction
Period (s)
0.5
S
7
1.3
ESE
7
1.8
E
7
1.6
E
8
1.3
E
8
1.1
E
8
1
E
8
1
E
8
0.6
S
7
0.8
E
8
0.4
SSE
7
0.6
E
8
0.6
E
8
0.7
SSW
9
0.1
SE
9
0.1
SE
9
0.5
E
8
0.5
E
8
0.1
E
16
0.4
E
8
0.2
E
8
0.6
E
4
Energy kJ
26
154
321
291
208
160
138
138
35
91
15
50
51
86
3
3
35
32
5
21
6
14
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
10
0.3
SSW
15
0.5
E
11
0.4
ENE
11
1.1
SSE
8
1.1
S
8
0.9
S
8
0.7
SSE
7
0.5
S
7
0.4
SSE
7
0.3
SSE
7
0.3
SSE
6
0.3
SSE
6
0.6
E
9
0.1
SE
9
0.1
SE
9
0.1
E
16
0.1
E
16
0.3
E
8
Energy kJ
4
42
61
40
176
165
95
57
24
16
9
8
8
53
3
3
5
5
12
Wind waves
Height (m)
Direction
Period (s)
1.6
ESE
6
2
E
6
1.6
ENE
6
0.8
NNE
4
0.3
N
4
0.7
SW
4
1.1
S
8
0.9
SW
5
1.4
SW
9
1.4
WSW
6
1.3
WSW
8
1
W
5
0.3
E
3
1.1
WSW
8
1.6
SW
8
1.6
SW
8
0.5
E
8
0.4
E
3
0.8
E
4
1
E
5
Energy kJ
161
283
155
25
3
15
142
31
323
140
243
51
2
142
306
308
32
3
24
51
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
2
3
4
3
2
1
1
1
1
1
1
1
2
2
1
2
2
1
2
1
1
Distance (km)
351
334
94
334
2
65
65
2
2
2
2
2
150
13
2
2
2
2
13
13
13
13
2
2
Best forecast wave conditions in Shizuoka
Rating
(10 max)
4
4
4
3
2
1
1
1
1
1
1
2
2
1
2
2
1
2
1
2
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
4
3
4
4
4
3
3
3
2
2
1
2
2
2
2
2
2
2
1
2
1
3
Header Global
Rating
(10 max)
8
8
9
9
7
6
6
5
6
8
6
9
9
8
7
6
5
7
6
5
5
5
8
8
  • 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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