Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 8 pm Tuesday 14 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
16.2° 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 5AM is: 0.8m 18s primary swell from a South-southeast direction and 0.8m 12s secondary swell from a Southeast direction, 0.9m 6s secondary swell from a East-southeast direction (forecast issued at 08:00pm April 14). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (15 Apr)3.5ft (1.0m)17s
Afternoon (15 Apr)5ft (1.5m)16s
Evening (15 Apr)6ft (1.9m)16s

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


Updates in  hr  min  s Forecast update imminent
Tue
14
Wednesday
15
Thursday
16
Friday
17
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
0
0
1
1
1
2
2
2
4
4
4
4
4
4
3
1
2
2
3
4
3
3
2
2
Swell
Height Map
Wave Height (m) & direction (?)
0.8
SE
0.8
SE
0.8
SE
0.8
SE
0.8
SSE
1
SSE
1.8
SE
1.5
SSE
1.9
SE
1.9
SE
2
SE
1.9
SE
1.7
SSE
2
SE
1.7
SSE
1.7
SSE
1.7
SSE
1.7
SSE
1.6
SSE
1.6
SSE
1.6
SSE
1.6
SSE
1.6
SSE
1.6
SSE
Period(s) (?)101212121817161616161515141516151414141415151515
Wave
Graph
(?)Metric surfscale
Energy kJ (?)124167169175390601173911841829178318601542126117651479133211911191107210721087111711321132
Wind
(km/h)
20
ESE
15
E
15
NE
15
ENE
15
NE
20
ENE
15
ENE
10
ENE
10
NNE
15
NNE
10
N
5
W
5
NNE
5
SE
15
SSW
15
S
15
SSE
15
ESE
10
NE
10
NNE
15
NE
15
NE
10
ESE
10
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
crosscrosscrosscrosscrosscross-
on
cross-
off
cross-
off
cross-
off
cross-
off
glassglasscrosscross-
on
cross-
on
cross-
on
crosscross-
off
crosscrossoncross-
on
High Tide
/ height (m)
4:04PM
1.33
4:14AM
1.46
4:40PM
1.40
4:34AM
1.50
5:14PM
1.44
4:55AM
1.54
Low Tide
/ height (m)
10:10PM
0.45
10:38AM
0.36
10:38PM
0.49
11:02AM
0.25
11:03PM
0.54
11:28AM
0.15
Tue
14
Wednesday
15
Thursday
16
Friday
17
Sunrise----5:16-------5:15-------5:13---
Sunset6:16-------6:17-------6:19-------
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
cloud
part cloud
cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
Rain (mm)
--------251-------------
Temp. °C181717161617181715151516151718181815151312131415
Feels °C (?)15151514141415151414151615171616161313119101112
  • 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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