Katahama Surf Break

Lat Long: 34.72° N 138.22° E

Katahama 48 hour detailed Surf Forecast

Issued: 2 am 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
23.9° C
1.8° 

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 (11 Jul):

  • Evening surf: Evening surf (11 Jul, local time) - 0.5ft (0.2m), 12s period with ESE swell.

The current surf forecast for Katahama at 7AM is: 0.4m 10s primary swell from a East direction (forecast issued at 02:00am July 11). An open ocean swell of 4.0m 16s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (11 Jul)--
Afternoon (11 Jul)--
Evening (11 Jul)0.5ft (0.2m)12s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Mon morning, min 23°C on Sat night). Wind will be generally light.

Saturday
11
Sunday
12
Monday
13
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
0
0
0
0
0
0
0
0
0
1
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)
0.4
ESE
10
0.4
ESE
10
0.4
E
10
4
S
17
4
SSW
17
4
SSW
17
4
SSW
16
0.2
ESE
12
0.4
E
9
0.4
E
9
0.4
SE
10
0.4
E
9
0.4
E
9
0.4
E
9
0.4
E
9
0.4
E
9
0.3
SE
10
0.3
SE
10
0.3
SE
13
0.3
SE
10
0.3
SE
10
0.3
SE
11
0.3
SE
12
0.3
SE
12
Wave Graph
Metric surfscale
Energy kJ
32
31
29
0
0
0
0
14
27
27
27
26
26
25
25
26
17
16
27
16
16
19
22
22
Wind (km/h)
5
WSW
5
W
5
W
10
SW
20
SSW
20
SW
20
SW
15
WSW
10
WSW
10
WSW
5
W
0
E
5
SE
5
S
10
SW
15
WSW
15
W
10
W
10
NNW
0
ENE
5
ESE
5
SSE
5
SE
0
SE
Wind State
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross-off
cross-off
glassy
glassy
glassy
glassy
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
glassy
glassy
glassy
High Tide
2:02AM1.49m
4:50PM1.41m
2:51AM1.52m
5:24PM1.48m
3:35AM1.55m
5:52PM1.53m
Low Tide
9:36AM0.37m
9:42PM1.16m
10:18AM0.29m
10:32PM1.15m
10:54AM0.23m
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:41
4:41
4:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:01
7:01
7:00
 mm
Temp °C
24
23
23
25
26
26
25
24
24
23
23
25
25
26
26
25
25
25
25
25
27
27
26
26
Feels °C
27
26
26
27
27
26
25
26
26
26
27
30
29
30
29
27
27
28
28
29
30
31
29
30
  • 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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