Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 8 pm Monday 30 Mar 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
15.1° 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 4AM is: 1.3m 6s primary swell from a South-southwest direction and 0.3m 9s secondary swell from a East direction, 0.1m 11s secondary swell from a East direction (forecast issued at 08:00pm March 30). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (31 Mar)1ft (0.3m)10s
Afternoon (31 Mar)0.5ft (0.2m)10s
Evening (31 Mar)0.5ft (0.1m)16s

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


Updates in  hr  min  s Forecast update imminent
Mon
30
Tuesday
31
Wednesday
01
Thursday
02
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1
SW
1.1
SW
1.1
SSW
1.3
SSW
1
S
0.3
E
0.2
E
0.2
E
5.5
SSW
0.1
SE
0.1
SE
0.1
SE
0.1
SE
1.4
SSE
1.3
SSE
1.1
SSE
1.1
SSE
1
SSE
0.9
SSE
0.9
SSE
0.8
SSE
0.7
SE
0.6
SSE
0.5
SE
Period(s) (?)55666101010111616161688887777778
Wave
Graph
(?)Metric surfscale
Energy kJ (?)536774955916127010101010250206135131117947053493031
Wind
(km/h)
15
SW
15
SW
15
SSW
20
SSW
10
SSW
20
SE
25
SSW
45
SW
45
SW
25
WSW
30
WSW
20
WNW
5
NNW
15
ESE
15
E
15
ENE
20
NE
20
NE
20
NE
15
NE
10
W
15
W
25
W
20
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscross-
on
cross-
on
oncrosscrosscrosscross-
off
cross-
off
cross-
off
cross-
off
oncross-
on
cross-
on
crosscrosscrosscrosscross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
3:49PM
1.30
4:28AM
1.43
4:27PM
1.38
4:47AM
1.47
5:01PM
1.43
5:06AM
1.51
Low Tide
/ height (m)
10:12PM
0.33
10:40AM
0.48
10:41PM
0.35
11:03AM
0.37
11:06PM
0.39
11:27AM
0.26
Mon
30
Tuesday
31
Wednesday
01
Thursday
02
Sunrise----5:35-------5:35-------5:33---
Sunset6:05-------6:06-------6:07-------
rain showers
rain showers
light rain
light rain
light rain
heavy rain
heavy rain
heavy rain
light rain
rain showers
clear
clear
cloud
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
cloud
rain showers
clear
part cloud
Rain (mm)
1222413391731-----15231-1--
Temp. °C181817171414161818181514141417141313121313141718
Feels °C (?)1616151313121211121510111411151210981012121214
  • 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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest