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Surf Forecasts:

Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 8 pm Tuesday 17 Feb 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
14.6° C
 (Which is 2.5°C colder than average for this time of year)

How big are the waves at Katahama today?

The current surf forecast for Katahama at 2AM is: 0.8m 7s primary swell from a East direction and 0.5m 10s secondary swell from a East direction (forecast issued at 08:00pm February 17). An open ocean swell of 0.1m 6s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Feb)1.5ft (0.5m)10s
Afternoon (18 Feb)2.5ft (0.8m)10s
Evening (18 Feb)2.5ft (0.7m)10s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tue
17
Wednesday
18
Thursday
19
Friday
20
6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM
Rating
(10 max)
2
2
1
1
1
0
0
0
0
0
0
0
1
1
1
0
0
0
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
E
1.1
E
1
E
0.8
E
0.4
E
0.5
E
0.6
E
0.8
E
0.8
E
0.7
E
0.6
E
0.5
E
0.4
E
0.4
E
0.4
E
0.4
E
0.3
E
0.4
E
0.4
E
0.4
E
0.4
E
0.3
E
0.3
E
0.3
E
Period(s) (?)10109711101010101091010109121212121212121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)26222017157375171117117886246292925452545454445252626
Wind
(km/h)
5
E
5
NNE
5
NNW
10
NW
15
WNW
20
W
30
W
40
W
35
WNW
30
WNW
40
WNW
30
WNW
15
NW
10
NW
5
SW
10
S
5
S
5
NNW
10
NW
10
NW
5
NW
5
NNE
10
SSW
20
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglasscross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		offoffoffglasscross-
on		glassoffoffoffoffglasscrosscross-
off
High Tide
/ height (m)
5:27PM
1.48
6:20AM
1.50
6:04PM
1.49
6:44AM
1.53
6:42PM
1.47
7:10AM
1.55
Low Tide
/ height (m)
12:00AM
0.14
12:19PM
0.50
12:28AM
0.19
12:51PM
0.41
12:56AM
0.26
1:26PM
0.34
Tue
17
Wednesday
18
Thursday
19
Friday
20
Sunrise-----6:30-------6:28-------6:28--
Sunset-------5:31-------5:32-------5:32
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
Rain (mm)
------------------------
Temp. °C998878111297632479986556811
Feels °C (?)775422220-2-5-6-4-14464211345
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

View detailed surf forecast for Katahama at:
surf-forecast.com

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