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

Katahama 48 hour detailed Surf Forecast

Weather Forecast for Katahama

Issued: 8 pm 03 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
21.2° C

1.3°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 (04 Jun):

  • Morning surf: Morning surf (04 Jun, local time) - 2ft (0.6m), 9s period with ESE swell.
  • Afternoon surf: Afternoon surf (04 Jun, local time) - 1.5ft (0.5m), 9s period with ESE swell.
  • Evening surf: Evening surf (04 Jun, local time) - 2ft (0.6m), 8s period with E swell.

The current surf forecast for Katahama at 1AM is: 0.5m 9s primary swell from a East direction (forecast issued at 08:00pm June 03). An open ocean swell of 3.0m 11s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (04 Jun)2ft (0.6m)9s
Afternoon (04 Jun)1.5ft (0.5m)9s
Evening (04 Jun)2ft (0.6m)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 21°C on Wed night, min 17°C on Fri night). Wind will be generally light.

Wed
3
Thursday
4
Friday
5
Saturday
6
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
1
0
0
1
0
0
1
0
0
2
1
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
Wave
Height (m)
Direction
Period (s)
5
SSW
13
0.5
E
10
0.5
E
9
0.6
ESE
9
1.1
E
9
0.6
ESE
9
0.6
ESE
9
0.5
ESE
9
0.5
ESE
8
0.6
E
8
0.8
E
12
0.6
E
8
0.4
ESE
8
1.4
E
5
1.6
E
6
1.7
E
6
1.5
E
6
1.5
E
6
1.3
E
6
1.2
E
6
1.1
E
6
1
E
6
0.8
E
6
0.7
E
6
Wave Graph
Metric surfscale
Energy kJ
0
46
44
65
194
62
61
43
41
51
181
49
22
112
181
198
154
149
111
98
83
71
45
33
Wind (km/h)
0
NNE
10
N
20
E
10
NE
10
ENE
15
NE
10
ENE
5
NNE
10
NE
10
NE
5
N
5
WNW
10
NE
15
ENE
20
E
15
ESE
10
E
15
NE
15
NE
15
NE
15
NE
15
NE
5
ESE
10
S
Wind State
glassy
cross-off
cross-on
cross
cross
cross
cross
cross-off
cross
cross
glassy
cross-off
cross
cross-on
cross-on
on
cross-on
cross
cross
cross
cross
cross
on
cross-on
High Tide
8:00PM1.48m
6:43AM1.51m
8:46PM1.47m
7:32AM1.42m
9:38PM1.45m
8:31AM1.30m
Low Tide
1:23AM0.96m
1:49PM0.18m
2:23AM0.95m
2:37PM0.29m
3:34AM0.93m
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
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>
6:54
6:55
6:55
6:57
 mm
Temp °C
23
21
20
20
19
19
19
19
19
19
19
18
18
20
21
21
21
19
18
18
17
18
20
19
Feels °C
26
22
19
21
19
18
18
19
18
19
20
18
18
18
17
19
21
18
16
16
15
16
20
18
Swell 1
Height (m)
Direction
Period (s)
5
SSW
13
4
SSW
12
3
SSW
11
2.5
SSW
11
2
SSW
10
1.7
SSW
9
1.5
SSW
9
1.3
SSW
9
1.3
SSW
8
1.1
SSW
8
1.1
SSW
8
0.9
SSW
8
0.8
SSW
7
0.7
SSW
7
0.6
SSW
7
0.4
SSW
7
0.5
E
12
0.4
ENE
13
0.4
ENE
12
0.5
E
12
0.5
E
12
0.6
SSW
8
0.6
SSW
7
0.6
E
12
Energy kJ
7612
4320
2549
1439
788
530
339
228
211
146
135
88
62
47
34
19
80
53
52
77
78
37
37
106
Swell 2
Height (m)
Direction
Period (s)
0.5
E
10
0.5
E
9
0.6
ESE
9
0.1
SE
13
0.6
ESE
9
0.6
ESE
9
0.5
ESE
9
0.5
ESE
8
0.6
E
8
0.6
E
8
0.6
E
8
0.4
ESE
8
0.1
SE
12
0.3
ENE
12
0.1
SE
12
0.4
SW
7
0.3
SSW
7
0.3
SSW
7
0.4
SW
7
0.5
SW
8
0.5
E
12
0.6
E
12
0.6
SSW
7
Energy kJ
46
44
65
7
62
61
43
41
51
50
49
22
6
31
5
12
9
9
13
28
77
108
36
Swell 3
Height (m)
Direction
Period (s)
0.5
E
9
0.1
SE
13
0.1
SE
13
0.2
W
4
0.1
SE
13
0.1
SE
13
0.1
SE
11
0.2
E
12
0.2
E
12
0.3
ENE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
Energy kJ
42
7
7
1
7
7
5
11
11
30
5
5
5
5
5
5
5
5
5
5
Wind waves
Height (m)
Direction
Period (s)
1.1
E
9
1
E
5
0.9
ESE
5
0.6
E
5
0.3
E
4
0.7
E
12
0.8
E
12
0.9
E
12
0.6
E
5
1.4
E
5
1.6
E
6
1.7
E
6
1.5
E
6
1.5
E
6
1.3
E
6
1.2
E
6
1.1
E
6
1
E
6
0.8
E
6
0.7
E
6
Energy kJ
194
44
45
16
3
137
181
235
20
112
181
198
154
149
111
98
83
71
45
33
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
3
2
3
1
1
2
2
1
1
1
2
1
1
3
3
2
2
2
1
1
1
Distance (km)
103
2
103
94
132
13
103
2
13
13
2
2
13
437
619
747
355
355
352
351
351
150
6
104
Best forecast wave conditions in Shizuoka
Rating
(10 max)
4
3
3
2
2
2
2
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
3
3
4
3
1
2
2
2
4
1
1
2
1
1
3
3
3
2
2
2
1
1
Header Global
Rating
(10 max)
4
5
5
5
5
5
6
6
5
4
5
5
5
5
5
5
6
9
9
9
8
9
8
6
  • 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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