Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 8 pm 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
23.2° C

1.6°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 (04 Jul):

  • Morning surf: Morning surf (04 Jul, local time) - 1ft (0.3m), 9s period with E swell.
  • Afternoon surf: Afternoon surf (04 Jul, local time) - 1ft (0.3m), 9s period with ESE swell.
  • Evening surf: Evening surf (04 Jul, local time) - 1ft (0.3m), 8s period with ESE swell.

The current surf forecast for Katahama at 2AM is: 0.3m 9s primary swell from a East-southeast direction and 0.3m 3s secondary swell from a East direction (forecast issued at 08:00pm July 03). An open ocean swell of 0.7m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (04 Jul)1ft (0.3m)9s
Afternoon (04 Jul)1ft (0.3m)9s
Evening (04 Jul)1ft (0.3m)8s

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

Moderate rain (total 12mm), heaviest on Sat afternoon. Warm (max 25°C on Sun morning, min 20°C on Sat night). Wind will be generally light.

Fri
3
Saturday
4
Sunday
5
Monday
6
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
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)
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
E
9
0.3
E
9
0.3
ESE
9
0.3
E
9
0.3
ESE
8
0.4
E
8
0.3
ESE
8
0.3
E
11
0.8
ESE
4
0.9
ESE
5
0.8
SE
5
0.9
SE
6
1.4
E
6
1.8
E
6
1.7
E
7
1.6
E
7
1.5
E
8
1.5
E
8
1.6
ESE
8
Wave Graph
Metric surfscale
Energy kJ
16
16
16
16
15
14
13
15
13
14
20
14
20
20
38
40
46
137
261
279
279
265
265
280
Wind (km/h)
5
ENE
10
E
5
ENE
5
NE
5
NE
10
ENE
10
SE
10
S
5
ESE
5
ENE
10
ENE
15
ENE
15
NE
20
ENE
15
ENE
15
ENE
20
ENE
20
NE
25
NE
20
NE
20
NE
20
ENE
15
ENE
5
NE
Wind State
cross
cross-on
cross
glassy
cross
cross-on
on
cross-on
glassy
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
8:13PM1.61m
7:29AM1.51m
8:51PM1.60m
8:22AM1.41m
9:32PM1.58m
9:25AM1.30m
Low Tide
2:07AM0.86m
2:10PM0.35m
3:00AM0.81m
2:52PM0.48m
3:59AM0.77m
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
light rain
light rain
cloud
part cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
4:37
—
—
—
—
—
—
—
4:39
—
—
—
—
—
—
—
4:39
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
—
—
—
—
—
—
—
7:04
—
—
—
—
—
—
—
7:02
—
—
—
—
—
—
7:02
 mm
—
—
—
—
—
—
—
2
3
1
3
1
—
—
—
—
1
1
—
—
—
—
—
—
Temp °C
22
22
22
22
22
23
24
22
21
21
20
21
22
23
25
25
22
22
22
22
22
23
23
24
Feels °C
24
24
24
25
24
25
26
24
24
23
21
22
23
23
25
26
22
22
21
21
21
22
23
26
Swell 1
Height (m)
Direction
Period (s)
0.9
SSW
7
0.9
SW
7
0.6
SW
7
0.7
SW
7
0.6
SSW
7
0.6
SSW
7
0.4
SW
6
0.5
SW
6
0.4
SW
6
0.4
SW
6
0.4
SW
6
0.3
SW
6
0.3
E
11
0.3
E
10
0.4
ESE
8
0.8
SE
5
0.9
SE
6
0.5
SW
6
0.4
SW
7
0.4
SW
7
1.6
E
7
1.5
E
8
0.5
SE
15
0.6
SSE
14
Energy kJ
86
69
38
46
30
34
15
19
10
9
9
6
20
19
24
40
46
20
16
16
279
265
104
140
Swell 2
Height (m)
Direction
Period (s)
0.3
ESE
9
0.3
ESE
9
0.4
SSE
5
0.3
ESE
9
0.3
ESE
9
0.3
E
9
0.3
E
9
0.3
ESE
9
0.3
E
9
0.3
ESE
8
0.3
ESE
9
0.3
ESE
8
0.3
SW
6
0.1
SW
6
0.1
SW
6
0.4
ESE
10
0.4
SW
6
0.2
ESE
10
0.2
ESE
11
0.4
SE
17
0.5
SE
16
0.5
SE
16
0.4
SW
6
0.4
SW
7
Energy kJ
16
16
10
16
15
14
13
15
13
14
15
14
5
1
1
33
10
11
11
77
124
119
11
15
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
12
0.2
ESE
12
0.3
ESE
9
0.2
ESE
12
0.1
SE
9
0.1
SE
9
0.3
S
5
0.2
ESE
3
0.2
ESE
4
0.2
ESE
4
0.2
ESE
4
0.2
ESE
11
0.1
SE
8
0.1
SE
10
0.1
SE
10
0.2
SSW
7
0.3
ESE
10
0.1
SE
19
0.1
SE
15
0.1
S
8
0.4
SW
7
0.4
SW
7
0.3
SE
12
0.4
SE
12
Energy kJ
14
14
16
14
3
3
4
1
1
1
1
11
3
4
4
4
20
14
9
1
16
11
23
37
Wind waves
Height (m)
Direction
Period (s)
0.4
E
4
0.3
E
3
0.3
E
3
0.3
E
3
0.3
E
3
—
0.2
E
3
—
—
—
0.4
E
8
0.3
ESE
4
0.5
E
3
0.8
ESE
4
0.9
ESE
5
0.6
ENE
3
0.6
NE
3
1.4
E
6
1.8
E
6
1.7
E
7
—
—
1.5
E
8
1.6
ESE
8
Energy kJ
4
2
2
1
1
—
1
—
—
—
20
3
6
20
38
7
9
137
261
279
—
—
265
280
Nearest Offshore or Glassy
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Kanegahama
Kyu Shu
Ohara
Chiba
Ohara
Chiba
Ikumi Beach
Shikoku
Ohara
Chiba
Ohara
Chiba
Kamogawa
Chiba
Big Ben
Chiba
Big Ben
Chiba
Hashikui Bay
Shikoku
Yasuda Rivermouth
Shikoku
Osaki Point
Shikoku
Dead Man's Land
Shikoku
Kugenuma Rivermouth
Kanagawa
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Nagai Point
Kanagawa
Nagahama
Kanagawa
Nagahama
Kanagawa
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
Distance (km)
13
13
13
13
664
208
208
386
208
208
178
179
179
355
415
397
373
132
13
13
13
137
138
138
Best forecast wave conditions in Shizuoka
Omaezaki
Omaezaki
Omaezaki
Omaezaki
Omaezaki
Omaezaki
Akabane Long Beach
Rating
(10 max)
1
1
1
1
2
2
2
Best forecast wave conditions in Japan
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Tsurigasaki Surfing Beach (Tokyo 2020)
Chiba
Niyodo Rivermouth
Shikoku
Ko-Chan (Hedo Point)
Okinawa
Ko-Chan (Hedo Point)
Okinawa
Ko-Chan (Hedo Point)
Okinawa
Ko-Chan (Hedo Point)
Okinawa
Kaifu Rivermouth
Shikoku
Nichinan
Kyu Shu
Tsurigasaki Surfing Beach (Tokyo 2020)
Chiba
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Kaiser's (Hachijojima Island)
Izu Islands
Niyodo Rivermouth
Shikoku
Takegashima
Shikoku
Ko-Chan (Hedo Point)
Okinawa
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
2
2
Header Global
Point Roadnight
Australia
Point Roadnight
Australia
Barbel Point
South Africa
Barbel Point
South Africa
Amanzimtoti
South Africa
Viri Inga O Tuki
Chile
Viri Inga O Tuki
Chile
Cyclops
Australia
Viri Inga O Tuki
Chile
Cyclops
Australia
Cyclops
Australia
Amanzimtoti
South Africa
Lebu
Chile
Flynns Reef
Australia
Trial Harbour
Australia
Trial Harbour
Australia
Trial Harbour
Australia
Trial Harbour
Australia
Easter Reef
Australia
Easter Reef
Australia
Blaketown Wedge
New Zealand
Anawhata Road (Oaonui)
New Zealand
Anawhata Road (Oaonui)
New Zealand
Stent Road
New Zealand
Rating
(10 max)
9
7
5
5
5
8
7
5
6
5
5
4
5
5
9
9
9
8
7
5
5
5
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)
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