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

Katahama 48 hour detailed Surf Forecast

Weather Forecast for Katahama

Issued: 8 pm 02 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
20.6° 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 (03 Jun):

  • Evening surf: Evening surf (03 Jun, local time) - 1.5ft (0.5m), 9s period with E swell.

The current surf forecast for Katahama at 2AM is: 1.8m 5s primary swell from a East-southeast direction (forecast issued at 08:00pm June 02). An open ocean swell of 2.2m 14s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (03 Jun)--
Afternoon (03 Jun)--
Evening (03 Jun)1.5ft (0.5m)9s

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 233mm), heaviest during Wed morning. Warm (max 25°C on Wed afternoon, min 18°C on Tue night). Winds decreasing (near gales from the ENE on Tue night, calm by Wed night).

Tue
2
Wednesday
3
Thursday
4
Friday
5
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
0
0
0
0
0
0
0
1
0
1
1
0
0
0
1
1
0
1
0
0
0
0
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.4
E
9
0.3
SE
12
1.4
ESE
5
2.1
ESE
6
3.5
SE
8
7.5
SSW
15
8
SSW
15
6
SSW
14
5
SSW
13
0.5
E
9
0.5
E
9
0.6
ESE
9
1
SSE
8
0.6
ESE
9
0.9
ESE
9
0.5
ESE
9
0.5
ESE
9
0.5
E
8
0.4
ESE
8
0.7
E
5
0.4
ESE
8
0.3
ESE
8
0.6
E
5
0.5
E
13
Wave Graph
Metric surfscale
Energy kJ
28
21
84
278
1230
0
0
0
0
44
44
65
127
62
129
44
42
36
26
26
26
13
21
82
Wind (km/h)
15
ENE
25
NE
30
ENE
45
NE
50
ENE
25
E
35
N
25
W
5
W
10
NNE
15
ENE
5
E
5
NW
10
E
10
NE
10
NE
5
NE
5
NNE
5
NW
5
NW
5
NE
10
ESE
10
SSE
15
SSE
Wind State
cross
cross
cross-on
cross
cross
cross-on
cross-off
cross-off
glassy
cross-off
cross-on
glassy
glassy
cross-on
cross
cross
glassy
cross-off
glassy
off
glassy
cross-on
cross-on
cross-on
High Tide
7:19PM1.48m
6:00AM1.58m
8:00PM1.48m
6:43AM1.51m
8:46PM1.47m
7:32AM1.42m
Low Tide
00:33AM0.96m
1:06PM0.11m
1:23AM0.96m
1:49PM0.18m
2:23AM0.95m
2:37PM0.29m
light rain
light rain
mod rain
heavy rain
heavy rain
heavy rain
heavy rain
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
4:33
4:33
4:33
6:54
6:54
6:55
6:55
4
5
10
14
59
104
41
Temp °C
18
18
18
18
19
20
19
25
23
21
21
21
20
19
19
18
18
19
19
19
19
20
21
22
18
16
15
12
12
18
14
23
25
21
21
23
22
19
18
17
18
19
19
19
20
19
21
21
Swell 1
Height (m)
Direction
Period (s)
1.9
SSW
13
1.8
SSW
13
2.1
SSW
14
2.2
SSW
14
3
SW
16
8
SSW
15
6
SSW
14
5
SSW
13
4
SSW
12
3
SSW
11
2.5
SSW
11
2.1
SSW
10
1.9
SSW
9
1.6
SSW
9
1.4
SSW
9
1.3
SSW
8
1.1
SSW
8
1
SSW
8
0.9
SSW
8
0.8
SSW
7
0.7
SSW
7
0.7
SSW
7
0.5
SSW
7
Energy kJ
1198
1052
1724
2082
4405
27790
13640
7913
4434
2594
1466
886
605
422
297
235
157
113
88
62
47
44
26
Swell 2
Height (m)
Direction
Period (s)
0.8
SW
17
1
SW
16
0.5
E
9
0.5
E
9
0.6
ESE
9
0.6
ESE
9
0.1
SE
13
0.6
ESE
9
0.5
ESE
9
0.5
ESE
9
0.5
E
8
0.4
ESE
8
0.5
E
5
0.4
E
5
0.3
ESE
8
0.4
ENE
13
0.5
E
13
Energy kJ
338
521
44
44
65
65
7
61
44
42
36
26
11
7
13
56
82
Swell 3
Height (m)
Direction
Period (s)
0.4
E
9
0.3
SE
12
0.5
E
9
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
11
0.3
ENE
10
0.4
ESE
8
0.4
ESE
8
0.3
ENE
13
0.3
ESE
8
0.1
SE
12
Energy kJ
28
21
43
7
7
7
7
7
5
21
26
26
33
13
6
Wind waves
Height (m)
Direction
Period (s)
0.7
E
9
1.4
ESE
5
2.1
ESE
6
3.5
SE
8
7.5
SSW
15
6
SW
13
1
SSE
8
0.6
ESE
9
0.9
ESE
9
0.7
ESE
4
0.4
E
3
0.7
E
4
0.6
E
4
0.7
E
5
0.4
ESE
5
0.6
E
5
0.8
E
7
Energy kJ
87
84
278
1230
23899
13068
127
62
129
20
3
13
13
25
8
21
66
Nearest Offshore or Glassy
Rating
(10 max)
4
2
1
1
4
2
4
4
4
4
3
3
2
3
3
2
1
1
1
1
1
1
1
1
Distance (km)
13
104
103
137
619
124
351
352
103
2
103
2
2
150
13
13
2
2
2
2
2
13
619
1289
Best forecast wave conditions in Shizuoka
Rating
(10 max)
4
4
4
4
3
2
2
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
3
1
5
4
5
4
4
5
4
3
4
4
3
3
2
2
1
4
1
1
1
1
1
Header Global
Rating
(10 max)
5
4
5
4
5
5
5
5
4
5
5
5
5
5
5
4
5
4
5
5
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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