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

Katahama 48 hour detailed Surf Forecast

Weather Forecast for Katahama

Issued: 2 am 03 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 (0.4m), 10s period with ESE swell.

The current surf forecast for Katahama at 6AM is: 3.5m 8s primary swell from a Southeast direction (forecast issued at 02:00am June 03). An open ocean swell of 3.5m 16s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (03 Jun)--
Afternoon (03 Jun)--
Evening (03 Jun)1.5ft (0.4m)10s

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 87mm), heaviest during Wed morning. Warm (max 24°C on Wed afternoon, min 17°C on Fri night). Mainly strong winds.

Wednesday
3
Thursday
4
Friday
5
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
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.1
E
4
2
ESE
6
3.5
SE
8
7.5
SSW
15
8
SSW
14
6.5
SSW
14
5.5
SSW
13
0.4
ESE
10
0.5
E
10
0.5
ESE
9
1
E
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.7
ESE
8
0.5
E
8
0.5
E
8
0.9
E
5
0.4
ESE
8
0.8
ESE
4
0.8
ESE
4
0.8
ESE
4
0.8
ESE
4
Wave Graph
Metric surfscale
Energy kJ
40
261
1523
0
0
0
0
31
47
47
165
62
62
61
58
73
35
34
43
22
24
23
20
21
Wind (km/h)
25
ENE
45
ENE
40
E
30
SSE
30
NW
40
W
30
W
10
NW
5
N
0
NE
10
SSW
5
SSE
5
SSW
15
SSE
10
ESE
20
ENE
10
NE
5
NE
10
NE
10
ESE
10
SE
15
SE
10
SSE
10
SE
Wind State
cross-on
cross
cross-on
on
off
cross-off
cross-off
off
cross-off
glassy
cross-on
glassy
cross
on
on
cross
cross
cross
cross
on
on
on
on
on
High Tide
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
mod rain
heavy rain
heavy rain
heavy rain
heavy rain
rain showers
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
4:33
4:33
4:33
6:54
6:55
6:55
9
17
74
53
33
1
Temp °C
18
19
20
22
19
24
22
21
20
20
20
19
20
20
20
19
19
19
18
20
22
22
22
20
15
14
16
20
15
19
19
22
21
22
21
20
20
19
19
17
19
19
17
19
20
20
21
20
Swell 1
Height (m)
Direction
Period (s)
2.1
SSW
14
2.2
SSW
15
3.5
SW
16
8
SSW
14
4.5
SW
12
3.5
SW
11
2.5
SW
11
2
SSW
10
1.8
SSW
9
1.6
SSW
9
1.3
SSW
9
1.2
SSW
8
1
SSW
8
0.9
SSW
8
0.8
SSW
7
0.8
SSW
7
0.7
SSW
7
0.6
SSW
7
0.6
SSW
7
0.4
SSW
7
0.4
SSW
7
Energy kJ
1874
2111
5605
25931
5087
2599
1467
788
584
381
261
192
122
93
70
62
47
34
31
18
18
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
11
0.4
ESE
10
0.5
E
10
0.5
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.1
SE
12
0.5
E
8
0.6
ESE
5
0.5
E
5
0.4
ESE
8
0.3
ESE
8
0.3
ESE
9
0.3
ENE
13
0.3
E
9
Energy kJ
18
31
47
47
64
62
62
61
58
6
35
15
13
22
13
15
34
13
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
NE
12
0.1
SE
12
0.5
E
8
0.4
ESE
8
0.2
E
13
0.2
E
13
0.3
ENE
13
0.2
ESE
8
0.3
ENE
13
Energy kJ
7
7
7
7
7
7
6
5
34
26
14
14
35
7
33
Wind waves
Height (m)
Direction
Period (s)
1.1
E
4
2
ESE
6
3.5
SE
8
7.5
SSW
15
6.5
SSW
14
5.5
SSW
13
4.5
SW
12
1.5
WNW
6
1
E
9
0.8
ESE
5
0.7
ESE
8
0.7
SE
5
0.7
ESE
5
0.9
E
5
0.6
E
5
0.8
ESE
4
0.8
ESE
4
0.8
ESE
4
0.8
ESE
4
Energy kJ
40
261
1523
26176
14826
9061
5002
159
165
28
73
22
25
43
19
24
23
20
21
Nearest Offshore or Glassy
Rating
(10 max)
1
1
4
3
4
4
4
4
4
3
4
2
1
1
1
2
1
1
1
1
1
1
1
2
Distance (km)
103
132
619
369
351
351
103
2
2
2
65
2
6
103
103
13
13
13
13
13
619
619
430
415
Best forecast wave conditions in Shizuoka
Rating
(10 max)
4
4
4
4
3
2
2
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
5
4
6
4
4
5
7
5
4
4
3
3
3
2
2
4
4
1
1
1
1
2
2
Header Global
Rating
(10 max)
5
4
4
5
5
5
4
5
5
5
5
5
5
4
5
5
5
5
5
5
5
5
6
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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