Katahama surfForecast / Shizuoka / Japan

information circle48hr Weather and Surf, issued 2 am Friday 01 May 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
17.8° C
(Which is 1.9°C colder than average for this time of year)

How big are the waves at Katahama today?

The current surf forecast for Katahama at 7AM is: 2.2m 8s primary swell from a East-southeast direction (forecast issued at 02:00am May 01). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (01 May)5ft (1.5m)8s
Afternoon (01 May)5ft (1.5m)9s
Evening (01 May)3.5ft (1.1m)9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 48mm), heaviest during Fri morning. Warm (max 24°C on Sat afternoon, min 14°C on Fri night). Winds decreasing (strong winds from the W on Fri night, calm by Sat night).

Friday
1
Saturday
2
Sunday
3
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
Rating
(10 max)
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.8
ESE
7
1.9
ESE
7
2.2
ESE
8
1.5
E
8
1.3
SE
9
1.5
SE
9
1.5
SE
9
1.1
SE
9
0.9
SE
9
0.6
ESE
9
0.4
ESE
9
0.3
SE
10
0.3
SE
10
0.4
ESE
9
0.3
SE
10
0.3
E
9
0.4
E
9
0.5
ESE
9
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
9
0.5
ESE
9
0.5
ESE
9
Wave Graph
Metric surfscale
Energy kJ
276
307
551
295
287
357
328
194
112
54
35
17
16
26
16
15
24
50
52
52
51
50
50
50
Wind (km/h)
25
ENE
30
ENE
35
NE
25
NE
10
NE
20
WSW
35
W
40
W
40
W
40
W
35
W
30
WNW
35
W
30
W
30
W
15
WNW
10
NNW
10
NNE
5
ENE
10
E
10
S
15
SW
15
SW
20
SSW
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
glassy
cross-on
cross-on
cross
cross
cross
High Tide
4:23AM1.53m
5:28PM1.44m
4:47AM1.57m
6:03PM1.45m
5:13AM1.59m
6:40PM1.44m
Low Tide
10:35PM0.65m
11:04AM0.16m
11:01PM0.69m
11:32AM0.09m
11:28PM0.74m
12:03PM0.05m
light rain
light rain
mod rain
heavy rain
mod rain
cloud
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:56
4:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:31
6:31
3
5
8
14
10
Temp °C
14
14
15
16
17
17
17
15
14
14
14
18
22
24
22
19
18
17
17
19
20
20
20
19
10
9
10
13
17
15
10
7
6
6
7
12
15
17
16
16
16
15
16
17
19
18
19
17
Swell 1
Height (m)
Direction
Period (s)
2.2
ESE
8
1.5
E
8
2.2
S
9
1.5
SE
9
1.5
SE
9
1.1
SE
9
0.9
SE
9
0.6
ESE
9
0.4
ESE
9
0.3
ESE
9
0.3
ESE
9
0.4
ESE
9
0.3
ESE
9
0.3
E
9
0.4
E
9
1.1
SW
7
0.8
SW
6
0.7
SW
6
0.6
SW
6
0.5
ESE
9
0.5
ESE
9
0.5
ESE
9
Energy kJ
551
295
770
357
328
194
112
54
35
16
15
26
16
15
24
99
56
36
23
50
50
50
Swell 2
Height (m)
Direction
Period (s)
1.5
SE
8
1.9
SW
9
0.8
E
9
0.5
SE
8
0.3
ESE
9
0.3
SE
10
0.3
SE
10
0.2
ESE
11
0.3
SE
10
0.3
SE
9
0.3
SE
9
0.5
ESE
9
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.2
SSE
6
0.1
S
6
Energy kJ
268
554
108
32
16
17
16
11
16
14
14
50
52
52
51
4
1
Swell 3
Height (m)
Direction
Period (s)
0.9
SSW
7
1.3
SE
9
0.2
S
7
0.2
S
7
0.2
S
6
0.2
S
6
0.2
S
6
Energy kJ
66
287
4
3
3
3
3
Wind waves
Height (m)
Direction
Period (s)
1.8
ESE
7
1.9
ESE
7
0.7
NNE
4
3.5
SSW
9
3
SSW
9
2.5
SW
9
3.5
SW
9
3.5
SW
9
4
WSW
9
3.5
WSW
9
3
WSW
9
2.5
WSW
9
2.2
WSW
6
2
WSW
6
1.7
WSW
6
1.3
WSW
7
0.4
NW
4
0.6
SW
6
0.6
SW
6
0.8
SSW
5
Energy kJ
276
307
18
1755
1380
1124
1693
2111
2504
2126
1431
1023
369
286
171
178
4
29
26
37
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
3
4
2
2
1
1
1
2
3
1
3
3
1
1
1
1
1
1
1
2
2
Distance (km)
150
103
103
13
103
6
351
351
351
334
103
178
397
104
104
2
2
2
13
13
148
437
827
658
Best forecast wave conditions in Shizuoka
Rating
(10 max)
3
2
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
4
2
3
4
4
2
1
1
1
2
3
1
3
3
4
2
2
2
2
1
1
2
Header Global
Rating
(10 max)
5
6
6
6
7
7
5
6
5
5
5
9
7
5
5
4
4
4
4
4
4
5
5
5
  • 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

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