Surf Break

Lat Long: 34.72° N 138.22° E

Katahama 48 hour detailed Surf Forecast

Issued: 2 am 04 Nov 2026 (local time)

Forecast update in  hr  min

Today's Katahama sea temperature is
22.4°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 (04 Nov):

  • Morning surf: Morning surf (04 Nov, local time) - 4.5ft (1.3m), 11s period with SSE swell.
  • Afternoon surf: Afternoon surf (04 Nov, local time) - 3.5ft (1.1m), 11s period with SSE swell.
  • Evening surf: Evening surf (04 Nov, local time) - 3.5ft (1.1m), 11s period with SSE swell.

The current surf forecast for Katahama at 6AM is: 1.3m 12s primary swell from a South-southeast direction and 0.2m 11s secondary swell from a East-southeast direction, 1.1m 8s secondary swell from a East direction (forecast issued at 02:00am November 04). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (04 Nov)4.5ft (1.3m)11s
Afternoon (04 Nov)3.5ft (1.1m)11s
Evening (04 Nov)3.5ft (1.1m)11s

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


Short Range Forecast

Moderate rain (total 13mm), heaviest on Wed night. Warm (max 21°C on Fri morning, min 13°C on Fri night). Winds increasing (calm on Thu night, strong winds from the WNW by Fri afternoon).

Wednesday
4
Thursday
5
Friday
6
Sat
7
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
12 AM
3 AM
6 AM
Rating
(10 max)
3
3
1
0
0
0
0
0
1
!
!
!
3
3
4
4
5
3
1
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SSE
13
1.3
SSE
12
1.3
SSE
12
1.3
SSE
11
1.2
SSE
11
1.1
SSE
11
1.1
SSE
11
1.1
SSE
11
2.5
E
9
3
ESE
10
3
ESE
10
3
ESE
11
2.5
ESE
11
2.5
ESE
11
2.2
S
13
2.3
S
13
2.5
S
13
2.5
S
13
2.5
SSE
13
2.1
SSE
12
1.7
SSE
11
1.3
SSE
11
1
SSE
10
1
ESE
10
0.9
ESE
10
0.8
ESE
10
0.7
E
10
Wave Graph
Metric surfscale
Energy kJ
623
477
454
394
343
314
303
297
1251
1871
2078
1742
1546
1439
1682
1806
2328
2537
2058
1231
704
387
190
190
176
136
100
Wind (km/h)
10
N
15
NNE
20
NE
30
NE
35
NE
35
NE
40
NE
35
NE
30
NE
25
NE
15
NE
5
N
10
NE
5
E
5
ESE
0
WSW
15
WSW
25
W
40
W
40
W
40
W
45
WNW
40
WNW
35
W
40
W
40
W
40
W
Wind State
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross
cross-off
glassy
cross
cross-on
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
1:04AM1.23m
2:14PM1.52m
2:26AM1.31m
2:48PM1.56m
3:21AM1.40m
3:16PM1.59m
4:05AM1.47m
Low Tide
7:17AM0.70m
8:45PM0.80m
8:20AM0.73m
9:23PM0.65m
9:09AM0.76m
9:54PM0.52m
clear
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
part cloud
cloud
cloud
part cloud
rain showers
clear
clear
clear
clear
clear
cloud
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
6:09
—
—
—
—
—
—
—
6:09
—
—
—
—
—
—
—
6:11
—
—
—
—
—
—
—
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
4:51
—
—
—
—
—
—
—
4:50
—
—
—
—
—
—
—
4:49
—
—
—
—
4:47
 mm
—
—
—
—
—
1
1
4
1
1
1
1
2
—
—
—
—
1
—
—
—
—
—
—
—
—
—
Temp °C
18
17
17
16
15
16
16
16
17
16
17
17
18
19
19
18
19
19
18
19
21
21
18
17
15
14
13
Feels °C
17
15
13
10
9
10
9
11
12
12
15
18
18
20
21
20
19
16
11
12
13
12
10
9
6
5
4
  • 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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