Katahama Surf Break

Lat Long: 34.72° N 138.22° E

Katahama 48 hour detailed Surf Forecast

Issued: 8 pm 28 Jul 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
27.3° C
0.3° 

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 (28 Jul):

  • Evening surf: Evening surf (28 Jul, local time) - 1.5ft (0.4m), 10s period with ESE swell.

The current surf forecast for Katahama at 11PM is: 0.4m 10s primary swell from a East-southeast direction and 0.8m 5s secondary swell from a Southwest direction (forecast issued at 08:00pm July 28). An open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (28 Jul)--
Afternoon (28 Jul)--
Evening (28 Jul)1.5ft (0.4m)10s

Table - waves today at Katahama. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 2mm), mostly falling on Thu afternoon. Warm (max 33°C on Wed afternoon, min 26°C on Tue night). Winds decreasing (fresh winds from the W on Tue night, calm by Thu night).

Tue
28
Wednesday
29
Thursday
30
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
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
Wave
Height (m)
Direction
Period (s)
0.4
ESE
10
0.4
ESE
10
0.9
SW
6
1.3
SW
6
0.4
ESE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
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
0.2
ESE
10
0.3
ESE
9
0.2
ESE
10
Wave Graph
Metric surfscale
Energy kJ
38
38
50
111
37
27
26
25
23
23
14
14
14
14
14
9
17
9
Wind (km/h)
15
WSW
20
W
25
W
30
W
30
W
25
W
20
W
20
W
20
W
15
NW
10
WNW
5
NW
5
NNW
5
WSW
5
W
5
W
10
WSW
5
NW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
glassy
off
cross-off
cross-off
cross-off
cross-off
off
High Tide
5:56PM1.59m
4:38AM1.62m
6:17PM1.63m
5:17AM1.66m
6:40PM1.67m
Low Tide
11:27PM1.04m
11:37AM0.25m
11:55PM0.96m
12:06PM0.25m
part cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
cloud
part cloud
part cloud
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:51
 mm
1
Temp °C
29
27
28
27
26
29
32
33
32
29
28
28
27
29
29
32
31
29
Feels °C
31
28
27
25
25
28
32
32
31
29
30
31
29
31
32
35
34
33
  • 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
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Katahama surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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