Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 pm 26 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.


How big are the waves at Katahama today (27 Jun):

  • Evening surf: Evening surf (27 Jun, local time) - 0.5ft (0.2m), 16s period with ESE swell.

The current surf forecast for Katahama at 3AM is: 0.4m 10s primary swell from a Southeast direction (forecast issued at 08:00pm June 26). An open ocean swell of 1.9m 13s is not directed at the surf break, a second open ocean swell of 1.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

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

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 152mm), heaviest during Sat afternoon. Warm (max 25°C on Sun morning, min 21°C on Sat morning). Wind will be generally light.

Fri
26
Saturday
27
Sunday
28
Monday
29
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
0
0
0
0
0
0
0
0
1
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
11
0.4
SE
11
0.4
SE
10
0.4
SE
10
0.2
ESE
17
2.3
SSW
9
2.5
SSW
9
2.5
SSW
9
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
15
1.1
SSE
8
1
SSE
8
0.2
ESE
15
0.3
ESE
15
0.9
SSE
8
0.8
SSE
7
0.4
SE
9
0.4
SE
9
Wave Graph
Metric surfscale
Energy kJ
30
29
27
26
27
0
0
0
25
25
25
25
25
25
25
23
160
140
21
42
100
68
29
29
Wind (km/h)
15
WSW
15
WSW
5
WNW
20
N
20
SW
10
W
15
NE
10
NE
10
ENE
25
NNE
20
WSW
15
WSW
5
WNW
5
WSW
15
SW
15
SSW
10
SSW
5
NE
10
NE
10
ENE
10
NE
10
E
5
ESE
15
SE
Wind State
cross-off
cross-off
off
cross-off
cross
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
glassy
cross
cross-on
cross
cross-on
cross-on
on
High Tide
4:20PM1.35m
2:40AM1.51m
5:04PM1.42m
3:19AM1.54m
5:38PM1.47m
3:57AM1.58m
Low Tide
9:09PM1.08m
10:02AM0.29m
10:02PM1.10m
10:39AM0.22m
10:43PM1.10m
11:13AM0.17m
light rain
light rain
cloud
mod rain
light rain
light rain
heavy rain
heavy rain
heavy rain
rain showers
clear
clear
part cloud
rain showers
cloud
light rain
part cloud
part cloud
part cloud
part cloud
rain showers
cloud
part cloud
rain showers
<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
7:04
 mm
2
2
7
1
3
25
27
76
6
1
1
1
1
Temp °C
23
22
22
22
22
21
22
22
23
23
22
22
22
24
25
24
24
23
22
22
22
23
23
23
Feels °C
25
23
25
22
22
23
24
25
26
23
22
23
25
27
26
25
26
26
24
24
24
25
25
24
Swell 1
Height (m)
Direction
Period (s)
1.6
SW
13
1.5
SW
13
1.5
SW
13
1.9
SSW
13
2.3
SSW
13
2.3
SSW
9
2
S
9
2.4
SSW
9
0.2
ESE
16
3.5
SW
12
4.5
SSW
12
4
SSW
12
3.5
SSW
11
3
SSW
11
2.5
SSW
10
2.2
SSW
10
1.6
SW
10
1.4
SW
9
1.7
SSW
9
1.6
SSW
9
1.2
SW
9
1.1
SW
8
1.3
SSW
8
1.2
SSW
8
Energy kJ
880
769
769
1216
1844
791
646
839
25
3901
5900
4201
2621
1807
1258
838
461
321
417
349
216
171
212
179
Swell 2
Height (m)
Direction
Period (s)
1.5
SSW
7
1.3
SSW
7
1.3
SSW
7
0.4
SE
10
0.1
SE
17
1.4
SW
13
1.3
SW
12
1.6
SSW
13
0.2
E
9
3.5
S
11
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
15
1.1
SSE
8
1
SSE
8
0.2
ESE
15
0.3
ESE
15
0.9
SSE
8
0.8
SSE
7
0.4
SE
9
0.4
SE
9
Energy kJ
186
158
141
26
11
659
471
836
6
3141
25
25
25
25
25
23
160
140
21
42
100
68
29
29
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
11
0.4
SE
11
0.4
SE
10
0.1
SE
18
0.2
ESE
17
0.3
SSW
16
0.9
SSW
15
0.8
SW
12
0.2
ESE
16
0.2
ESE
16
0.1
E
8
0.2
E
9
0.2
E
9
0.2
ESE
15
0.2
ESE
15
0.2
E
8
0.1
E
8
0.2
ESE
15
0.4
SE
9
0.2
ESE
15
0.2
ESE
15
Energy kJ
30
29
27
12
27
52
355
169
25
25
1
6
6
21
21
5
1
21
30
21
21
Wind waves
Height (m)
Direction
Period (s)
1.6
SSW
6
2.5
SSW
9
2.5
SSW
9
4
SSW
12
6
SSW
12
0.4
NW
4
0.4
E
3
0.5
E
4
0.5
E
4
0.7
E
4
Energy kJ
188
1016
999
4345
9024
4
3
6
7
16
Nearest Offshore or Glassy
Rating
(10 max)
2
3
2
2
1
3
4
4
3
4
1
4
4
4
4
3
1
2
2
1
2
2
1
1
Distance (km)
2
65
2
94
103
2
13
13
103
132
6
2
2
2
65
65
6
2
13
103
94
13
2
104
Best forecast wave conditions in Shizuoka
Rating
(10 max)
2
3
2
2
3
4
4
1
4
4
4
4
3
1
2
2
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
3
3
3
3
4
4
4
4
4
4
4
4
4
4
3
2
3
2
2
2
2
1
2
Header Global
Rating
(10 max)
5
6
7
7
5
6
6
6
5
5
5
5
4
9
8
7
6
5
5
6
6
6
8
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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