Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 pm 20 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
21.9° 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.

Surf Forecasts:

How big are the waves at Katahama today (20 Jun):

  • Afternoon surf: Afternoon surf (20 Jun, local time) - 1ft (0.3m), 10s period with SE swell.
  • Evening surf: Evening surf (20 Jun, local time) - 1.5ft (0.4m), 10s period with SE swell.

The current surf forecast for Katahama at 9PM is: 0.4m 10s primary swell from a Southeast direction and 0.6m 4s secondary swell from a Southeast direction (forecast issued at 02:00pm June 20). An open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (20 Jun)--
Afternoon (20 Jun)1ft (0.3m)10s
Evening (20 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 
16 DaysHourly
Print Table

Short Range Forecast

Heavy rain (total 30mm), heaviest during Sat night. Warm (max 29°C on Sun morning, min 20°C on Tue morning). Winds decreasing (strong winds from the W on Sun night, light winds from the NNE by Mon night).

Sat
20
Sunday
21
Monday
22
Tue
23
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
6 AM
9 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SE
10
0.3
SE
10
0.4
SE
10
0.4
SE
10
1
S
6
1.3
SSW
5
0.4
SE
9
0.3
SE
9
0.3
SE
11
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.4
SE
11
0.4
SE
11
0.4
SE
11
Wave Graph
Metric surfscale
Energy kJ
15
15
24
33
71
87
21
13
19
21
21
30
32
25
16
16
16
16
16
16
16
29
40
31
Wind (km/h)
10
NE
15
NE
10
E
10
E
10
SSW
15
SW
15
WSW
20
WSW
30
WSW
40
W
35
W
40
WNW
45
W
40
WNW
25
WNW
20
WNW
20
W
20
WNW
20
WNW
15
WNW
15
WNW
5
NNE
25
ESE
25
E
Wind State
cross
cross
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-on
cross-on
High Tide
9:38PM1.52m
9:00AM1.30m
10:28PM1.51m
10:23AM1.19m
11:22PM1.49m
Low Tide
2:47PM0.38m
3:51AM0.85m
3:36PM0.52m
5:03AM0.79m
4:30PM0.68m
6:18AM0.71m
light rain
light rain
light rain
light rain
mod rain
light rain
thunderstorm
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
4:33
—
—
—
—
—
—
—
4:33
—
—
—
—
—
—
—
4:33
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
7:02
—
—
—
—
—
—
—
7:02
—
—
—
—
—
—
—
7:02
—
—
—
—
7:02
 mm
1
3
4
4
8
5
4
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
22
22
21
21
22
22
23
24
29
29
27
24
23
22
22
25
28
29
27
25
23
23
22
21
Feels °C
24
24
23
23
24
24
25
26
27
24
23
18
17
17
20
24
27
27
26
24
22
24
20
18
Swell 1
Height (m)
Direction
Period (s)
0.8
SSW
7
0.9
SSW
7
0.9
SSW
6
0.6
SW
6
0.4
SE
9
0.5
ESE
5
0.4
ESE
5
0.3
SE
9
0.3
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.6
SW
7
0.9
WNW
6
0.6
SW
6
Energy kJ
53
64
59
31
31
14
10
13
13
21
21
30
32
25
16
16
16
16
16
16
16
42
52
25
Swell 2
Height (m)
Direction
Period (s)
0.3
SE
10
0.3
SE
10
0.4
SE
10
0.4
SE
10
0.1
SE
12
0.4
SE
9
0.4
SE
9
0.3
ESE
6
0.2
ESE
6
0.3
SE
11
0.3
SE
11
0.2
E
12
0.2
E
12
0.2
E
12
0.2
E
12
0.2
E
12
0.2
E
11
0.2
E
11
0.2
E
10
0.2
E
10
0.2
E
10
0.4
SE
11
0.8
SW
7
0.5
W
5
Energy kJ
15
15
24
33
6
22
21
6
3
19
19
11
11
11
11
11
9
9
8
8
8
29
54
13
Swell 3
Height (m)
Direction
Period (s)
0.2
E
8
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
E
8
0.2
SSE
12
0.2
SSE
12
0.2
SSE
11
0.3
SE
11
0.2
E
10
0.2
E
12
0.1
E
17
0.2
ENE
9
0.1
SE
16
0.1
SE
16
0.1
S
13
0.1
S
13
0.1
S
12
0.1
S
12
0.1
S
11
0.1
S
11
0.2
E
10
0.4
SE
11
0.4
SE
11
Energy kJ
6
6
6
6
1
14
13
12
19
8
11
6
8
10
10
3
3
3
3
2
2
7
40
31
Wind waves
Height (m)
Direction
Period (s)
—
—
0.4
ESE
4
0.6
SE
4
1
S
6
1.3
SSW
5
1.9
SW
6
2.3
SW
7
2.1
SW
8
2.1
SW
8
2.2
SW
8
2.3
WSW
8
2.1
WSW
8
2.2
WSW
8
2.4
WSW
7
2.5
W
7
2.3
W
7
2.4
W
7
2.3
W
7
2.1
W
6
1.8
W
6
1.5
W
6
—
0.8
ENE
4
Energy kJ
—
—
6
12
71
87
284
552
489
567
639
735
608
618
483
589
494
521
465
350
247
160
—
14
Nearest Offshore or Glassy
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Susuki
Shizuoka
Hashikui Bay
Shikoku
Suruga Bay
Shizuoka
Akabane Long Beach
Shizuoka
Sakawa River
Kanagawa
Choshi
Chiba
Sakawa River
Kanagawa
Akabane Long Beach
Shizuoka
Sakawa River
Kanagawa
Sakawa River
Kanagawa
Kisami-Ohama Beach
Shizuoka
Suruga Bay
Shizuoka
Suruga Bay
Shizuoka
Keta Reef Oshima
Izu Islands
Suruga Bay
Shizuoka
Suruga Bay
Shizuoka
Suruga Bay
Shizuoka
Osaki Point
Shikoku
Omaezaki
Shizuoka
Akabane Long Beach
Shizuoka
Rating
(10 max)
1
1
1
1
1
2
1
3
1
3
1
2
2
2
1
1
1
2
1
1
1
1
1
1
Distance (km)
13
13
13
13
6
355
2
94
103
260
103
94
103
103
65
2
2
104
2
2
2
397
13
94
Best forecast wave conditions in Shizuoka
Omaezaki
Omaezaki
Omaezaki
Omaezaki
Susuki
Akabane Long Beach
Akabane Long Beach
Akabane Long Beach
Kisami-Ohama Beach
Suruga Bay
Suruga Bay
Suruga Bay
Suruga Bay
Suruga Bay
Omaezaki
Akabane Long Beach
Rating
(10 max)
1
1
1
1
1
2
3
2
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Tacos (Hachijojima Island)
Izu Islands
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Susuki
Shizuoka
Osaki Point
Shikoku
Niyodo Rivermouth
Shikoku
Kaifu Rivermouth
Shikoku
Inamura Point
Kanagawa
Choshi
Chiba
Niyodo Rivermouth
Shikoku
Big Ben
Chiba
Matsube Bay
Chiba
Matsube Bay
Chiba
Chikura
Chiba
Mera
Chiba
Tsurigasaki Surfing Beach (Tokyo 2020)
Chiba
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Niijima - Habushiura
Izu Islands
Kuminatu
Chiba
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Rating
(10 max)
1
1
1
1
1
3
4
3
1
3
2
3
3
3
4
4
2
2
2
3
2
1
1
1
Header Global
Trial Harbour
Australia
Trial Harbour
Australia
Trial Harbour
Australia
Trial Harbour
Australia
Buchupureo
Chile
Trial Harbour
Australia
Buchupureo
Chile
Buchupureo
Chile
Buchupureo
Chile
Buchupureo
Chile
Buchupureo
Chile
Buchupureo
Chile
Etang-Sale
Reunion
Saint Leu
Reunion
Etang-Sale
Reunion
Maconde
Mauritius
Papatowai
New Zealand
Ning Nong Point and Reef
New Zealand
White Rock - The Spit
New Zealand
Tora Point
New Zealand
El Olon de Ilo
Peru
El Olon de Ilo
Peru
El Olon de Ilo
Peru
El Colegio
Chile
Rating
(10 max)
5
5
5
5
5
5
8
9
9
9
8
7
7
8
7
7
6
6
8
6
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)
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