Shonan Surf Break

Lat Long: 35.32° N 139.44° E

Shonan 48 hour detailed Surf Forecast

Issued: 8 am 29 Sep 2026 (local time)

Forecast update in  hr  min

Today's Shonan sea temperature is
25.0°C
0.2° 

Shonan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Shonan today (29 Sep):

  • Morning surf: Morning surf (29 Sep, local time) - 2.5ft (0.7m), 7s period with S swell.
  • Afternoon surf: Afternoon surf (29 Sep, local time) - 1ft (0.3m), 14s period with SW swell.
  • Evening surf: Evening surf (29 Sep, local time) - 1.5ft (0.4m), 13s period with SW swell.

The current surf forecast for Shonan at 1PM is: 0.6m 7s primary swell from a South direction and 0.3m 14s secondary swell from a Southwest direction (forecast issued at 08:00am September 29). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (29 Sep)2.5ft (0.7m)7s
Afternoon (29 Sep)1ft (0.3m)14s
Evening (29 Sep)1.5ft (0.4m)13s

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


Short Range Forecast

Heavy rain (total 52mm), heaviest during Tue afternoon. Warm (max 24°C on Thu afternoon, min 18°C on Tue night). Wind will be generally light.

Tuesday
29
Wednesday
30
Thursday
1
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)
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
1
2
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
S
7
0.7
S
7
0.6
S
7
0.3
SW
14
0.4
SW
14
0.4
SW
13
0.5
SW
13
0.6
SSW
13
0.6
SSW
12
0.6
SSW
12
0.6
SSW
11
0.6
SSW
11
0.7
SSW
11
0.8
SSW
10
0.7
SSW
10
0.8
SSW
10
0.9
S
10
1.1
S
10
1.3
SSE
10
1.3
SSE
10
1.1
SSE
9
0.8
SSE
8
Wave Graph
Metric surfscale
Energy kJ
47
45
32
31
46
63
84
108
98
93
84
84
105
121
108
136
156
234
335
283
184
76
Wind (km/h)
5
NNW
10
N
20
NNE
15
NE
20
NE
20
NE
10
N
15
NNE
20
NNE
20
NE
20
NNE
20
NNE
20
NNE
25
N
25
N
20
N
20
NNE
20
NNE
15
NNE
10
ENE
5
SSE
5
ENE
Wind State
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
on
cross
High Tide
6:11AM1.50m
5:36PM1.55m
6:57AM1.43m
5:59PM1.53m
7:49AM1.33m
6:24PM1.50m
Low Tide
11:50AM0.64m
00:18AM0.13m
12:19PM0.77m
00:58AM0.14m
12:46PM0.90m
light rain
light rain
mod rain
mod rain
heavy rain
mod rain
light rain
light rain
light rain
light rain
light rain
cloud
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:33
—
—
—
—
—
—
5:35
—
—
—
—
—
—
—
5:35
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
5:30
—
—
—
—
—
—
—
5:29
—
—
—
—
—
—
—
5:27
—
—
 mm
1
3
8
9
12
7
4
4
1
1
1
—
1
1
—
—
—
—
—
—
—
—
Temp °C
22
22
20
20
19
18
18
19
19
19
18
18
19
19
19
19
20
20
22
24
23
23
Feels °C
25
24
20
20
18
17
18
19
18
18
16
16
17
17
17
17
19
19
21
25
25
26
  • 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
How to use the Wavefinder 

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 Shonan 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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