Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 am 27 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
22.6° C

1.5°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.


Time (JST) & DateWave HeightWave Period
Morning (27 Jun)0.5ft (0.2m)16s
Afternoon (27 Jun)--
Evening (27 Jun)11ft (3.5m)12s

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 221mm), heaviest during Sat afternoon. Warm (max 24°C on Sun morning, min 21°C on Sat morning). Wind will be generally light.

Saturday
27
Sunday
28
Monday
29
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
0
0
0
0
1
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)
0.4
SE
10
0.4
SE
10
0.1
SE
17
0.2
S
16
2.2
SSW
9
3
SSW
9
0.2
ESE
16
3.5
S
12
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
1.1
SSE
8
1.1
SSE
8
0.2
ESE
15
0.3
ESE
15
0.9
SSE
8
0.8
SSE
7
0.4
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
Wave Graph
Metric surfscale
Energy kJ
27
26
11
21
0
0
25
3159
25
25
25
25
25
24
146
167
21
42
98
73
29
39
40
41
Wind (km/h)
5
NNW
25
NE
20
SW
10
SW
15
SSE
5
NE
25
NE
20
NNE
15
WSW
20
WSW
5
NNW
5
SW
10
SW
5
S
5
ENE
10
NE
10
NE
10
NE
5
ENE
10
E
10
SE
15
SE
10
SE
5
ESE
Wind State
glassy
cross-off
cross-off
cross
cross-on
glassy
cross
cross-off
cross-off
cross-off
glassy
glassy
cross
glassy
glassy
cross
cross
cross
cross-on
cross-on
on
on
on
on
High Tide
2:40AM1.51m
5:04PM1.42m
3:19AM1.54m
5:38PM1.47m
3:57AM1.58m
6:08PM1.51m
Low Tide
9:09PM1.08m
10:02AM0.29m
10:02PM1.10m
10:39AM0.22m
10:43PM1.10m
11:13AM0.17m
light rain
mod rain
light rain
heavy rain
heavy rain
heavy rain
heavy rain
rain showers
part cloud
clear
part cloud
cloud
light rain
light rain
light rain
cloud
light rain
light rain
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:35
4:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:04
7:04
 mm
1
8
1
17
69
24
96
7
1
1
2
1
1
1
1
Temp °C
21
21
22
21
23
23
23
23
23
22
22
24
23
22
22
22
22
22
22
22
23
23
23
23
Feels °C
24
20
22
23
25
27
23
24
24
23
25
28
26
25
25
24
24
24
25
24
25
24
25
26
Swell 1
Height (m)
Direction
Period (s)
1.5
SW
13
1.8
SSW
13
2.3
SSW
9
2.5
SSW
9
2.2
SSW
9
2.5
SSW
9
0.8
SW
12
4
SW
12
4.5
SSW
12
4
SSW
12
3.5
SSW
11
3
SSW
11
2.4
SSW
10
2.2
SSW
10
1.6
SW
10
1.4
SW
9
1.7
SSW
9
1.6
SSW
8
1.2
SW
8
1
SW
8
1.2
SSW
8
1.1
SSW
8
1.1
SSW
8
1.1
SSW
8
Energy kJ
769
1151
791
1012
741
949
197
4234
5900
4201
2621
1807
1168
838
452
307
408
333
201
132
163
135
131
135
Swell 2
Height (m)
Direction
Period (s)
1.3
SSW
7
0.4
SE
10
1.4
SW
13
1.1
SW
13
1.2
SW
12
1.6
SSW
13
0.2
ESE
16
3.5
S
12
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
1.1
SSE
8
1.1
SSE
8
0.2
ESE
15
0.3
ESE
15
0.9
SSE
8
0.8
SSE
7
0.4
SE
9
0.5
SE
9
0.5
SE
9
0.5
SE
9
Energy kJ
141
26
680
424
416
836
25
3159
25
25
25
25
25
24
146
167
21
42
98
73
29
39
40
41
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
10
0.1
SE
18
0.1
SE
17
0.2
S
16
0.9
SSW
15
1
SW
12
0.2
E
8
0.2
ESE
16
0.2
E
8
0.1
E
8
0.2
E
9
0.2
E
8
0.2
ESE
15
0.2
ESE
15
0.2
E
8
0.2
E
8
0.2
ESE
15
0.4
SE
9
0.2
ESE
15
0.2
ESE
15
0.2
ESE
15
0.2
ESE
15
Energy kJ
27
12
11
21
355
268
6
25
5
1
6
6
22
21
5
5
21
30
21
21
21
21
Wind waves
Height (m)
Direction
Period (s)
2.5
SSW
13
3
SSW
9
3
SSW
12
0.3
ENE
3
0.4
E
3
0.8
E
4
0.8
ESE
4
0.6
E
4
0.5
E
4
Energy kJ
2146
1183
2943
1
3
20
24
12
7
Nearest Offshore or Glassy
Rating
(10 max)
2
2
3
4
3
3
3
4
4
4
4
3
4
2
2
2
2
2
2
2
1
1
1
1
Distance (km)
2
94
94
224
94
2
103
112
103
103
2
2
65
2
2
13
13
13
13
13
104
103
13
2
Best forecast wave conditions in Shizuoka
Rating
(10 max)
3
2
3
3
3
4
4
4
3
3
2
2
2
2
2
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
3
3
3
4
3
4
4
4
9
4
4
4
4
3
4
3
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
7
7
5
6
6
6
6
5
5
5
9
9
8
7
6
6
5
6
6
6
8
7
5
7
  • 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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