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

Katahama 48 hour detailed Surf Forecast

Weather Forecast for Katahama

Issued: 2 pm 08 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
20.9° C

2.0°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) - 4ft (1.2m), 8s period with E swell.
  • Evening surf: Evening surf (08 Jun, local time) - 2.5ft (0.8m), 8s period with E swell.

The current surf forecast for Katahama at 9PM is: 0.8m 8s primary swell from a East direction (forecast issued at 02:00pm June 08). An open ocean swell of 1.2m 10s is not directed at the surf break, a second open ocean swell of 1.1m 8s 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)4ft (1.2m)8s
Evening (08 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

Moderate rain (total 10mm), heaviest on Mon night. Warm (max 24°C on Mon afternoon, min 19°C on Wed night). Wind will be generally light.

Mon
8
Tuesday
9
Wednesday
10
Thu
11
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)
2
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
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
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
E
8
1.2
E
8
1.2
S
8
0.8
E
8
0.7
E
8
0.8
E
8
0.7
E
8
0.7
E
8
0.6
E
8
0.6
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
8
0.4
E
8
0.4
E
8
0.4
E
8
0.3
E
8
0.4
SSE
6
0.5
E
5
0.4
ENE
5
0.5
SSE
7
0.9
ENE
5
Wave Graph
Metric surfscale
Energy kJ
221
176
191
82
58
84
66
68
51
52
38
38
38
36
34
21
21
22
12
15
15
8
28
41
Wind (km/h)
0
NE
15
SW
20
SW
10
SW
10
W
10
WSW
10
WNW
10
WSW
15
WSW
5
SSW
0
E
10
NNE
10
NNE
5
NNW
5
ENE
10
E
10
SE
20
SE
5
SSE
10
NE
10
NE
10
NNE
10
NNE
10
ENE
Wind State
glassy
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
cross-off
cross-off
off
glassy
cross-on
on
on
cross-on
cross
cross
cross-off
cross-off
cross-on
High Tide
11:43AM1.12m
00:32AM1.45m
1:33PM1.15m
1:22AM1.46m
2:52PM1.22m
2:04AM1.48m
Low Tide
5:36PM0.69m
7:26AM0.66m
6:46PM0.81m
8:24AM0.53m
7:54PM0.89m
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
rain showers
rain showers
part cloud
part cloud
part cloud
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
6:59
 mm
2
2
2
1
1
1
1
Temp °C
24
24
23
22
21
21
20
20
21
22
21
21
20
20
20
21
21
21
21
20
19
19
19
21
Feels °C
26
24
22
23
23
23
21
21
21
24
24
22
21
21
22
22
21
20
22
20
19
19
19
21
Swell 1
Height (m)
Direction
Period (s)
2.4
SSW
10
1.7
SW
10
1.3
SW
10
1.2
SW
10
1.1
SW
9
0.9
SW
9
0.7
E
8
0.8
SW
8
0.8
SW
8
0.8
SSW
8
0.9
SSW
8
1.3
SSW
8
1.4
SSW
8
1.4
SSW
8
1.3
SSW
8
1.4
SSW
8
1.5
SSW
9
1.4
SSW
9
1.3
SSW
9
1.1
SW
9
1.1
SW
8
1.2
SSW
9
1.1
SW
9
1.1
SW
8
Energy kJ
1215
580
341
262
188
132
66
97
80
80
93
243
254
248
219
267
339
300
244
174
166
212
170
166
Swell 2
Height (m)
Direction
Period (s)
1.4
E
8
1.2
E
8
1.2
S
8
1.1
S
8
1
S
7
0.8
E
8
0.5
S
7
0.7
E
8
0.6
E
8
0.6
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.5
E
8
0.4
E
8
0.4
E
8
0.4
E
8
0.3
E
8
0.4
SSE
6
0.4
SSE
6
0.2
E
8
0.5
SSE
7
0.5
SSE
7
Energy kJ
221
168
191
142
112
84
24
68
51
52
38
38
38
36
34
21
21
22
12
15
15
5
28
28
Swell 3
Height (m)
Direction
Period (s)
0.5
E
11
1.1
SSE
8
0.9
E
8
0.8
E
8
0.7
E
8
0.6
S
7
0.5
S
6
0.5
S
6
0.4
SSE
6
0.2
SSW
10
0.4
SSW
9
0.1
SE
9
0.1
SE
9
0.1
SE
9
0.1
E
16
0.1
E
16
0.2
W
4
0.3
E
8
0.4
E
5
0.2
E
8
0.4
ENE
5
Energy kJ
59
176
98
82
58
36
22
21
13
10
28
3
3
3
5
5
1
12
7
5
9
Wind waves
Height (m)
Direction
Period (s)
0.4
WSW
3
0.8
SW
5
1.3
SW
9
0.8
WSW
5
0.6
W
5
0.7
W
5
0.8
WSW
4
0.4
WNW
4
0.5
WNW
4
0.5
W
4
0.6
E
4
0.5
E
4
0.5
E
5
0.4
ENE
5
0.4
ENE
5
0.9
ENE
5
Energy kJ
3
28
243
33
15
21
21
6
11
9
10
9
12
8
8
41
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
1
2
1
2
1
1
1
1
1
1
1
1
2
2
1
1
2
1
1
1
1
Distance (km)
2
132
65
6
2
2
2
2
6
2
2
6
2
2
2
13
94
351
334
13
13
2
2
13
Best forecast wave conditions in Shizuoka
Rating
(10 max)
4
3
1
2
1
2
1
1
1
1
2
2
2
2
2
2
2
1
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
2
3
3
3
2
2
2
2
1
2
2
2
2
2
2
2
1
1
2
1
2
2
2
Header Global
Rating
(10 max)
7
6
7
5
5
6
7
9
9
8
7
6
5
5
6
5
5
5
8
9
9
9
9
9
  • 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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