Katahama Surf Break

Katahama 48 hour detailed Surf Forecast

Lat Long: 34.72° N 138.22° E

Issued: 2 am 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
23.3° C

1.4°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 (03 Jul):

  • Morning surf: Morning surf (03 Jul, local time) - 1ft (0.3m), 9s period with ESE swell.
  • Afternoon surf: Afternoon surf (03 Jul, local time) - 1ft (0.3m), 9s period with ESE swell.
  • Evening surf: Evening surf (03 Jul, local time) - 1ft (0.3m), 9s period with ESE swell.

The current surf forecast for Katahama at 10AM is: 0.3m 9s primary swell from a East-southeast direction and 0.7m 4s secondary swell from a East direction (forecast issued at 02:00am July 03). An 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 (03 Jul)1ft (0.3m)9s
Afternoon (03 Jul)1ft (0.3m)9s
Evening (03 Jul)1ft (0.3m)9s

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 20mm), heaviest during Sat night. Warm (max 23°C on Sat morning, min 20°C on Sat night). Wind will be generally light.

Friday
3
Saturday
4
Sunday
5
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
6 PM
9 PM
Rating
(10 max)
0
1
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
Wave
Height (m)
Direction
Period (s)
0.3
ESE
9
0.7
ESE
9
0.3
ESE
9
0.3
ESE
9
0.7
E
4
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
ESE
9
0.3
E
9
0.3
E
9
0.3
E
8
0.2
ESE
9
0.2
ESE
9
0.7
E
4
0.9
ESE
4
0.9
ESE
5
1
ESE
5
1.1
ESE
6
1.2
ESE
6
1.1
ESE
6
Wave Graph
Metric surfscale
Energy kJ
15
82
16
16
16
16
16
16
16
16
14
16
14
14
13
7
8
12
28
37
54
77
90
88
Wind (km/h)
10
NNW
5
SSE
10
ENE
15
ENE
10
NE
10
NE
5
ENE
5
ESE
5
ENE
5
NE
5
ENE
5
E
10
SE
5
ESE
10
ENE
15
NE
20
ENE
15
ENE
15
ENE
15
NE
15
NE
15
NE
15
NE
15
NE
Wind State
cross-off
glassy
cross-on
cross
cross
cross
cross-on
glassy
glassy
glassy
cross
cross-on
on
on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
High Tide
6:41AM1.58m
8:13PM1.61m
7:29AM1.51m
8:51PM1.60m
8:22AM1.41m
Low Tide
1:19AM0.91m
1:31PM0.24m
2:07AM0.86m
2:10PM0.35m
3:00AM0.81m
2:52PM0.48m
part cloud
cloud
light rain
light rain
cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
mod rain
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
4:37
—
—
—
—
—
—
—
4:37
—
—
—
—
—
—
—
4:39
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
7:04
—
—
—
—
—
—
—
7:04
—
—
—
—
—
—
—
7:02
—
 mm
—
—
1
1
—
—
—
—
—
—
—
—
—
1
5
6
4
—
—
—
—
—
—
—
Temp °C
23
23
22
21
21
22
22
22
22
22
21
23
23
22
21
20
20
21
21
22
22
22
22
22
Feels °C
26
27
24
22
22
23
24
24
25
25
23
25
25
25
23
20
20
21
21
22
23
22
23
23
Swell 1
Height (m)
Direction
Period (s)
1.8
SW
8
1.7
SW
8
1.5
SW
8
1.3
SW
7
1.1
SW
7
1
SW
7
0.9
SW
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
S
6
0.4
SW
6
0.4
SE
4
0.4
SE
4
0.3
SW
6
0.2
ESE
11
0.3
ESE
10
0.3
ESE
10
0.4
SW
6
0.4
SW
6
0.4
SW
6
Energy kJ
416
346
244
176
136
102
73
69
38
46
30
29
15
20
10
4
4
6
11
18
18
10
14
14
Swell 2
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
ESE
9
0.3
ESE
9
0.3
ESE
9
0.4
S
5
0.3
ESE
9
0.3
E
9
0.3
ESE
9
0.3
SSE
5
0.3
E
9
0.3
E
8
0.3
SW
6
0.3
SW
6
0.2
ESE
11
0.2
WSW
6
0.2
SSW
5
0.4
SW
5
0.3
ESE
10
0.3
ESE
10
0.3
ESE
10
Energy kJ
15
16
16
16
16
16
16
16
9
16
14
16
5
14
13
6
6
11
3
3
7
19
20
20
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.3
ESE
9
0.2
ESE
12
0.2
ESE
12
0.2
ESE
12
0.3
E
9
0.2
ESE
12
0.2
ESE
11
0.2
ESE
9
0.2
ESE
9
0.2
ESE
8
0.1
SE
8
0.2
WSW
6
0.1
SE
10
0.2
SSW
5
0.1
E
8
0.1
SE
15
Energy kJ
14
14
14
14
14
14
14
14
16
14
14
14
14
14
13
7
8
7
3
3
4
2
1
9
Wind waves
Height (m)
Direction
Period (s)
—
0.7
ESE
9
0.5
E
4
0.6
E
4
0.7
E
4
0.6
E
4
0.5
E
4
0.4
E
4
0.3
E
3
0.3
E
3
0.2
E
3
—
—
0.4
SE
3
0.4
SE
4
0.4
ESE
4
0.4
ENE
9
0.7
E
4
0.9
ESE
4
0.9
ESE
5
1
ESE
5
1.1
ESE
6
1.2
ESE
6
1.1
ESE
6
Energy kJ
—
82
7
10
14
11
7
4
2
2
1
—
—
3
4
5
26
12
28
37
54
77
90
88
Nearest Offshore or Glassy
Suruga Bay
Shizuoka
Suruga Bay
Shizuoka
Mera
Chiba
Akabane Long Beach
Shizuoka
Kurihama
Kanagawa
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Omaezaki
Shizuoka
Big Ben
Chiba
Ohara
Chiba
Ohara
Chiba
Ohara
Chiba
Ohara
Chiba
Ohara
Chiba
Ohara
Chiba
Ohara
Chiba
Ohara
Chiba
Dead Man's Land
Shikoku
Osaki Point
Shikoku
Kaiser's (Hachijojima Island)
Izu Islands
Rock Island
Kanagawa
Shida
Chiba
Rating
(10 max)
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
Distance (km)
2
2
150
94
145
13
13
13
13
13
179
208
208
208
208
208
208
208
208
373
397
236
138
211
Best forecast wave conditions in Shizuoka
Suruga Bay
Omaezaki
Akabane Long Beach
Omaezaki
Omaezaki
Omaezaki
Omaezaki
Omaezaki
Rating
(10 max)
1
2
1
1
1
1
1
1
Best forecast wave conditions in Japan
Big Ben
Chiba
Amatu
Chiba
Chikura
Chiba
Chikura
Chiba
Kuminatu
Chiba
Mera
Chiba
Niyodo Rivermouth
Shikoku
Omaezaki
Shizuoka
Katagai
Chiba
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Ko-Chan (Hedo Point)
Okinawa
Ko-Chan (Hedo Point)
Okinawa
Ko-Chan (Hedo Point)
Okinawa
Curren's Point
Kyu Shu
Nunoshima
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Kaiser's (Hachijojima Island)
Izu Islands
Kaiser's (Hachijojima Island)
Izu Islands
Kaiser's (Hachijojima Island)
Izu Islands
Rating
(10 max)
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
Header Global
Cobblestones
Australia
Snake Park
South Africa
Amanzimtoti
South Africa
Amanzimtoti
South Africa
Amanzimtoti
South Africa
Amanzimtoti
South Africa
Point Roadnight
Australia
Barbel Point
South Africa
Cathedral Rock
Australia
Batu Hiu
Indonesia
Bancoora
Australia
Amanzimtoti
South Africa
Viri Inga O Tuki
Chile
Papa Tangaroa
Chile
Viri Inga O Tuki
Chile
Viri Inga O Tuki
Chile
Cyclops
Australia
Amanzimtoti
South Africa
Lebu
Chile
Lebu
Chile
Trial Harbour
Australia
Trial Harbour
Australia
Easter Reef
Australia
Trial Harbour
Australia
Rating
(10 max)
6
6
6
9
9
9
6
4
9
5
6
5
7
6
6
6
5
4
5
5
9
9
9
8
  • 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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