Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 am 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 (26 Jun):

  • Morning surf: Morning surf (26 Jun, local time) - 5ft (1.5m), 6s period with SSW swell.
  • Afternoon surf: Afternoon surf (26 Jun, local time) - 1.5ft (0.4m), 11s period with SE swell.
  • Evening surf: Evening surf (26 Jun, local time) - 1.5ft (0.4m), 11s period with SE swell.

The current surf forecast for Katahama at 3PM is: 0.4m 11s primary swell from a Southeast direction (forecast issued at 08:00am June 26). An open ocean swell of 1.6m 14s is not directed at the surf break, a second open ocean swell of 1.9m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (26 Jun)5ft (1.5m)6s
Afternoon (26 Jun)1.5ft (0.4m)11s
Evening (26 Jun)1.5ft (0.4m)11s

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 91mm), heaviest during Fri night. Warm (max 25°C on Fri morning, min 21°C on Fri night). Mainly fresh winds.

Friday
26
Saturday
27
Sunday
28
Mon
29
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
12 AM
3 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
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
1.5
SSW
6
0.4
SE
12
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
10
0.4
SE
10
0.4
SE
10
1.7
SSE
10
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
1
NE
4
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
SSE
8
1
SSE
8
1
SSE
8
Wave Graph
Metric surfscale
Energy kJ
27
156
34
30
30
29
27
26
26
540
25
25
25
25
29
25
25
25
25
24
22
133
136
136
Wind (km/h)
5
SW
25
SW
30
SW
25
WSW
20
WSW
15
WSW
5
SW
5
E
25
N
30
SW
15
SSW
5
SE
20
NE
25
NE
10
WNW
20
W
10
W
5
SE
5
SSW
5
S
10
ESE
5
E
10
NE
5
NE
Wind State
cross
cross
cross
cross-off
cross-off
cross-off
glassy
glassy
cross-off
cross-off
cross
glassy
cross
cross
off
cross-off
cross-off
glassy
cross-on
cross-on
cross-on
cross-on
cross
cross
High Tide
4:20PM1.35m
2:40AM1.51m
5:04PM1.42m
3:19AM1.54m
5:38PM1.47m
Low Tide
9:21AM0.38m
9:09PM1.08m
10:02AM0.29m
10:02PM1.10m
10:39AM0.22m
10:43PM1.10m
thunderstorm
thunderstorm
thunderstorm
light rain
light rain
cloud
light rain
heavy rain
heavy rain
cloud
light rain
heavy rain
heavy rain
light rain
light rain
part cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
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
1
3
3
1
2
14
25
3
15
18
5
1
Temp °C
23
25
25
24
23
22
22
21
22
24
22
22
22
23
23
22
22
24
24
25
24
23
22
22
Feels °C
27
25
25
24
24
23
25
24
21
23
24
26
23
23
25
22
24
27
27
28
26
26
24
24
Swell 1
Height (m)
Direction
Period (s)
1.7
SSW
14
1.7
SSW
13
0.4
SE
12
1.6
SW
14
1.6
SW
13
1.5
SW
13
1.5
SW
13
1.9
SSW
13
1.8
SSW
13
1.7
SSE
10
3
SSW
11
3
SSW
13
3
SSW
12
2.5
SSW
11
3
SSW
10
4.5
SSW
12
4
SSW
12
3.5
SSW
11
3
SSW
11
2.5
SSW
11
2.2
SSW
10
1.7
SSW
10
1.5
SSW
10
1.4
SW
9
Energy kJ
1005
961
34
907
880
769
769
1216
1077
540
1942
2897
2233
1531
2013
5805
4501
2879
1823
1344
970
576
430
353
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
SE
10
0.2
ESE
18
0.4
SE
11
0.4
SE
11
1.5
SSW
7
1.3
SSW
7
0.4
SE
10
0.4
SE
10
0.8
S
13
1
S
15
0.6
SW
12
0.6
SW
12
0.7
SW
12
0.6
SW
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
SSE
8
1
SSE
8
1
SSE
8
Energy kJ
27
27
31
30
30
198
149
26
26
219
435
92
92
132
76
25
25
25
25
24
22
133
136
136
Swell 3
Height (m)
Direction
Period (s)
0.3
E
6
0.2
E
6
0.2
ESE
18
0.1
SE
18
0.1
SE
18
0.4
SE
11
0.4
SE
10
0.1
SE
18
0.1
SE
17
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
E
8
0.2
E
8
0.2
E
8
0.2
ESE
15
0.3
ESE
15
0.3
ESE
15
Energy kJ
7
3
31
12
12
29
27
12
11
26
25
25
25
25
25
25
5
5
5
21
42
42
Wind waves
Height (m)
Direction
Period (s)
1.3
SSW
6
1.5
SSW
6
2.5
SSW
13
1.9
SW
7
1.7
SSW
7
0.7
NNE
3
2.2
SW
13
0.6
NE
3
1
NE
4
Energy kJ
130
156
2084
325
251
12
1559
6
29
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
2
1
2
2
2
1
1
4
4
4
4
3
4
4
4
4
4
3
3
2
3
Distance (km)
2
334
352
351
6
2
2
2
132
115
94
2
373
94
2
66
2
104
94
104
13
13
2
13
Best forecast wave conditions in Shizuoka
Rating
(10 max)
3
3
2
3
4
4
4
4
3
4
4
4
3
3
3
3
Best forecast wave conditions in Japan
Rating
(10 max)
3
4
4
3
3
2
3
4
3
4
4
4
4
4
4
4
4
4
4
4
3
3
3
3
Header Global
Rating
(10 max)
4
5
5
5
5
6
7
7
5
5
6
6
5
5
5
7
8
8
8
7
6
5
5
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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