Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 8 pm Sunday 12 Apr 2026 JST
Forecast update in hr  min  s Forecast update imminent
Katahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Katahama sea temperature is
15.8° C
(Which is 2.8°C colder than average for this time of year)

How big are the waves at Katahama today?

The current surf forecast for Katahama at 12AM is: 0.5m 10s primary swell from a Southeast direction and 0.7m 6s secondary swell from a East-southeast direction (forecast issued at 08:00pm April 12). The wind direction is predicted to be glassy.

Time (JST) & DateWave HeightWave Period
Morning (13 Apr)2ft (0.6m)11s
Afternoon (13 Apr)1.5ft (0.4m)10s
Evening (13 Apr)2.5ft (0.7m)11s

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


Updates in  hr  min  s Forecast update imminent
Sun
12
Monday
13
Tuesday
14
Wednesday
15
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
0
1
1
1
1
1
0
0
0
1
1
1
1
0
0
0
0
0
1
2
2
2
2
2
Swell
Height Map
Wave Height (m) & direction (?)
0.4
ESE
0.5
SE
0.5
SE
0.6
ESE
0.6
ESE
0.6
ESE
0.6
ESE
0.4
ESE
0.5
ESE
0.7
SE
0.7
SE
0.7
SE
0.7
ESE
0.9
SE
0.9
SE
0.8
SE
0.8
SE
0.9
SE
0.9
SE
0.9
ESE
0.8
SSE
1
SSE
1.7
SE
1.8
SE
Period(s) (?)11111010101111101011111191010101012121217171616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4455547373757536541171151157815114812212420220525538661515291728
Wind
(km/h)
10
SE
0
NE
5
N
5
NNW
5
N
0
NE
10
S
10
S
5
S
5
N
5
N
5
N
5
N
10
ENE
10
SE
15
SE
15
SE
10
ESE
10
NE
10
NNE
10
NE
15
ENE
10
ESE
15
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onglassglasscross-
off
glassglasscross-
on
cross-
on
cross-
on
glassglassglassglasscross-
on
onononcross-
on
crosscross-
off
crosscrosscross-
on
on
High Tide
/ height (m)
3:29AM
1.38
3:23PM
1.25
3:53AM
1.42
4:04PM
1.33
4:14AM
1.46
Low Tide
/ height (m)
8:52PM
0.43
9:46AM
0.61
9:36PM
0.43
10:13AM
0.48
10:10PM
0.45
10:38AM
0.36
Sun
12
Monday
13
Tuesday
14
Wednesday
15
Sunrise----5:18-------5:18-------5:16---
Sunset6:15-------6:15-------6:16-------
part cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
Rain (mm)
------------------------
Temp. °C171716161516181918171616161719191817161615171919
Feels °C (?)161817161517171818171616161618161616151513151717
  • 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

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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