Surf Break

Lat Long: 34.72° N 138.22° E

Katahama 48 hour detailed Surf Forecast

Issued: 8 pm 30 Sep 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
25.8°C
0.5° 

Katahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Time (JST) & DateWave HeightWave Period
Morning (01 Oct)--
Afternoon (01 Oct)--
Evening (01 Oct)0.5ft (0.1m)12s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Fri afternoon. Warm (max 29°C on Thu afternoon, min 19°C on Fri night). Wind will be generally light.

Wed
30
Thursday
1
Friday
2
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
2
2
1
0
0
1
1
1
1
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)
0.1
SE
12
0.1
SE
12
1.2
S
9
1.3
S
9
1.2
S
9
1.1
S
8
1.1
SSE
8
1
SSE
8
0.9
SSE
7
0.9
SE
7
0.7
SE
7
0.7
SE
7
0.6
SE
7
0.6
SE
7
0.5
SE
7
0.7
ENE
5
0.9
E
6
1.2
E
6
Wave Graph
Metric surfscale
Energy kJ
6
6
0
268
210
165
146
110
96
73
49
47
37
36
21
28
57
112
Wind (km/h)
25
NE
20
NE
15
NNE
15
NNE
10
NNE
5
W
15
SW
20
WSW
10
WNW
10
NW
10
WNW
10
NW
10
NNW
15
NE
10
NE
10
NE
10
NE
10
NE
Wind State
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross-off
cross-off
off
off
off
cross-off
cross
cross
cross
cross
cross
High Tide
7:01PM1.75m
8:25AM1.49m
7:33PM1.67m
9:30AM1.39m
8:08PM1.56m
Low Tide
1:54AM0.38m
1:40PM0.99m
2:43AM0.45m
2:23PM1.12m
part cloud
part cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
part cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
5:41
—
—
—
—
—
—
—
5:41
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
—
5:31
—
—
—
—
—
—
—
5:30
—
—
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
Temp °C
21
21
21
21
21
24
28
29
25
24
23
22
21
22
21
22
21
21
Feels °C
19
20
21
21
21
26
29
28
25
25
24
23
22
21
21
23
21
22
  • 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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