Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 am 25 Jun 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
22.7° C

1.3°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 (25 Jun):

  • Morning surf: Morning surf (25 Jun, local time) - 2.5ft (0.8m), 6s period with S swell.
  • Afternoon surf: Afternoon surf (25 Jun, local time) - 2.5ft (0.7m), 4s period with E swell.
  • Evening surf: Evening surf (25 Jun, local time) - 1ft (0.3m), 10s period with SE swell.

The current surf forecast for Katahama at 3PM is: 0.7m 4s primary swell from a East direction (forecast issued at 08:00am June 25). An open ocean swell of 1.3m 13s is not directed at the surf break, a second open ocean swell of 1.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (25 Jun)2.5ft (0.8m)6s
Afternoon (25 Jun)2.5ft (0.7m)4s
Evening (25 Jun)1ft (0.3m)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 212mm), heaviest during Sat night. Warm (max 25°C on Fri morning, min 20°C on Thu morning). Winds increasing (calm on Thu night, fresh winds from the NE by Sat night).

Thursday
25
Friday
26
Saturday
27
Sun
28
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
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)
0.5
S
5
0.8
S
6
0.4
SE
10
0.3
SE
10
0.7
E
5
0.3
SE
10
1.1
S
7
1.6
SSW
14
1.4
SSW
6
0.4
SE
12
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
1.1
NE
4
1.1
E
5
0.2
ESE
16
1.2
E
5
1.9
E
6
1.7
ENE
6
0.2
ESE
16
Wave Graph
Metric surfscale
Energy kJ
11
41
37
17
25
16
103
0
119
34
34
30
30
29
27
27
26
40
53
25
60
230
180
25
Wind (km/h)
25
NE
25
NE
25
NE
20
NE
15
NE
10
E
5
ESE
5
NE
5
NNW
15
SW
20
WSW
20
SW
30
W
20
SW
5
WNW
15
NE
5
NNE
25
E
5
NE
10
SE
20
ENE
40
NE
20
NNE
15
W
Wind State
cross
cross
cross
cross
cross
cross-on
on
glassy
glassy
cross
cross-off
cross
cross-off
cross
off
cross
cross-off
cross-on
cross
on
cross-on
cross
cross-off
cross-off
High Tide
3:24PM1.27m
1:58AM1.49m
4:20PM1.35m
2:40AM1.51m
5:04PM1.42m
Low Tide
8:31AM0.49m
8:02PM1.03m
9:21AM0.38m
9:09PM1.08m
10:02AM0.29m
10:02PM1.10m
heavy rain
mod rain
mod rain
heavy rain
heavy rain
mod rain
mod rain
mod rain
rain showers
thunderstorm
thunderstorm
light rain
heavy rain
mod rain
heavy rain
heavy rain
heavy rain
heavy rain
light rain
cloud
light rain
heavy rain
light rain
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
13
7
6
11
14
8
8
9
1
2
2
3
13
10
16
25
18
13
3
—
3
38
2
—
Temp °C
20
20
20
20
20
20
21
21
21
24
25
22
21
21
21
20
21
21
22
23
21
21
22
22
Feels °C
19
18
19
19
20
21
24
24
24
26
26
23
19
21
24
21
24
20
24
25
21
17
22
23
Swell 1
Height (m)
Direction
Period (s)
0.7
SSW
16
0.9
SSW
15
1.2
SSW
7
1.3
SSW
13
1.4
SSW
14
1.5
SSW
14
1.6
SSW
14
1.6
SSW
14
2
SSW
14
0.4
SE
12
1.6
SW
13
1.6
SW
14
1.6
SW
13
1.5
SW
13
1.8
SW
13
1.8
SW
13
1.7
SSW
13
1.4
SW
13
1.9
SSW
13
3
S
10
2.4
S
10
2.5
S
12
3
S
11
5
SSW
13
Energy kJ
215
334
147
624
690
791
1014
1028
1469
34
854
907
880
769
1110
1110
932
689
1180
1403
1102
1775
2166
8474
Swell 2
Height (m)
Direction
Period (s)
0.6
SSW
12
0.8
S
6
1.2
SSW
14
1.3
SSW
7
1.2
S
7
1.1
S
7
1.1
S
7
1.1
S
6
0.4
SE
10
0.2
E
7
0.4
SE
12
0.4
SE
11
1.3
SSW
7
1.1
SSW
7
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.3
SE
10
0.2
ESE
16
0.2
ESE
16
1.1
SW
12
0.9
SW
12
1.4
SW
12
0.2
ESE
16
Energy kJ
99
41
523
176
138
111
103
101
27
3
34
30
154
110
27
27
26
16
25
25
386
240
590
25
Swell 3
Height (m)
Direction
Period (s)
0.5
S
5
0.8
SSW
12
0.4
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.4
ENE
7
0.3
ENE
7
0.2
ESE
18
0.2
E
7
0.1
SE
18
0.4
SE
11
0.4
SE
11
0.1
SE
18
0.1
SE
18
0.1
SE
17
0.2
ESE
16
0.1
E
9
0.2
E
8
0.8
S
13
0.2
ESE
16
0.2
ESE
16
0.2
ESE
16
Energy kJ
11
158
37
16
16
16
16
16
9
31
3
12
30
29
12
12
11
26
2
6
222
25
25
25
Wind waves
Height (m)
Direction
Period (s)
0.6
E
9
0.9
ENE
4
1
ENE
4
0.7
E
4
0.7
E
5
0.5
E
6
0.5
E
6
—
1.4
SSW
6
2.3
SSW
13
1.8
SW
6
1.5
SW
7
—
—
—
—
0.4
NE
3
1.1
NE
4
1.1
E
5
0.8
ENE
4
1.2
E
5
1.9
E
6
1.7
ENE
6
1.1
NNE
5
Energy kJ
55
21
32
17
25
16
21
—
119
1887
263
198
—
—
—
—
2
40
53
23
60
230
180
61
Nearest Offshore or Glassy
Mera
Chiba
Kugenuma Rivermouth
Kanagawa
Sakawa River
Kanagawa
Inamura Point
Kanagawa
Omaezaki
Shizuoka
Sakawa River
Kanagawa
Sakawa River
Kanagawa
Suruga Bay
Shizuoka
Suruga Bay
Shizuoka
Gomoda
Shikoku
Akabane Long Beach
Shizuoka
Akabane Long Beach
Shizuoka
Nunoshima
Shikoku
Sakawa River
Kanagawa
Suruga Bay
Shizuoka
Omaezaki
Shizuoka
Suruga Bay
Shizuoka
Akabane Long Beach
Shizuoka
Suruga Bay
Shizuoka
Sakawa River
Kanagawa
Sakawa River
Kanagawa
Sakawa River
Kanagawa
Inamura Point
Kanagawa
Susuki
Shizuoka
Rating
(10 max)
1
1
1
1
3
1
1
3
3
2
3
3
2
1
2
4
2
2
2
2
2
2
3
1
Distance (km)
150
132
103
132
13
103
103
2
2
334
94
94
351
103
2
13
2
94
2
103
103
103
132
6
Best forecast wave conditions in Shizuoka
Omaezaki
Omaezaki
Suruga Bay
Akabane Long Beach
Akabane Long Beach
Suruga Bay
Omaezaki
Omaezaki
Akabane Long Beach
Omaezaki
Susuki
Rating
(10 max)
3
4
3
3
3
2
4
3
2
4
1
Best forecast wave conditions in Japan
Kaifu Rivermouth
Shikoku
Kaifu Rivermouth
Shikoku
Takegashima
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Osaki Point
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Omaezaki
Shizuoka
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Omaezaki
Shizuoka
Niyodo Rivermouth
Shikoku
Kaifu Rivermouth
Shikoku
Kaifu Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Rating
(10 max)
3
3
1
3
4
4
3
4
3
5
3
3
3
3
2
4
3
3
4
3
4
4
4
4
Header Global
Hell
South Africa
Caravan Park/Lamberts Bay
South Africa
Etang-Sale
Reunion
Goukamma River Mouth
South Africa
Dunedin - Cob Cottage
New Zealand
El Gringo
Chile
El Gringo
Chile
Ahijedero
Mexico
Ahijedero
Mexico
Jongensfontein
South Africa
Boneyards
South Africa
Brak River
South Africa
Dolphin Point
South Africa
Lebu
Chile
Lebu
Chile
Easter Reef
Australia
Boneyards
South Africa
Boneyards
South Africa
Papatowai
New Zealand
Lebu
Chile
Papatowai
New Zealand
Buchupureo
Chile
Papatowai
New Zealand
Trial Harbour
Australia
Rating
(10 max)
7
5
5
5
5
5
5
4
4
5
5
5
6
7
7
5
5
5
6
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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