Shonan surf break

Shonan surfForecast / Kanagawa / Japan

information circle48hr Weather and Surf, issued 2 pm Monday 18 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Shonan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Shonan sea temperature is
19.8° C
(Which is slightly cooler than normal)

How big are the waves at Shonan today?

The current surf forecast for Shonan at 11PM is: 0.3m 10s primary swell from a Southeast direction and 0.2m 7s secondary swell from a South-southeast direction, 0.2m 10s secondary swell from a East-southeast direction, 0.5m 3s secondary swell from a South-southwest direction (forecast issued at 02:00pm May 18). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (18 May)--
Afternoon (18 May)1ft (0.3m)10s
Evening (18 May)1ft (0.3m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 17mm), heaviest on Wed night. Warm (max 25°C on Wed afternoon, min 17°C on Thu morning). Wind will be generally light.

Mon
18
Tuesday
19
Wednesday
20
Thu
21
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
12 AM
3 AM
6 AM
9 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SSE
7
0.2
ESE
10
0.3
SE
10
0.4
SE
10
0.3
SE
11
1
S
4
1
S
4
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.3
SE
10
0.4
SE
10
0.3
SE
9
0.3
SE
9
0.3
SE
9
Wave Graph
Metric surfscale
Energy kJ
17
16
16
16
10
10
16
29
18
35
39
29
29
29
29
28
27
26
25
15
23
14
14
13
Wind (km/h)
20
S
25
S
25
S
20
SSW
15
SW
10
SW
10
SW
15
S
30
S
30
SSW
25
SSW
15
SW
15
SW
15
WSW
10
SW
10
S
15
S
20
S
15
SSW
15
SW
10
SW
10
WSW
15
NNW
25
NNE
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross
off
cross-off
High Tide
6:48PM1.49m
4:55AM1.57m
7:42PM1.43m
5:34AM1.54m
8:39PM1.36m
6:17AM1.47m
Low Tide
11:33AM-0.11m
11:41PM1.02m
12:19PM-0.09m
00:22AM1.06m
1:08PM-0.01m
1:08AM1.09m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:35
4:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:40
6:42
6:43
1
4
4
4
Temp °C
22
22
22
21
20
19
19
22
23
24
23
21
20
20
20
22
23
25
24
23
22
21
20
17
18
18
19
18
19
18
18
20
19
20
20
20
19
19
20
22
22
23
24
23
23
23
21
14
Swell 1
Height (m)
Direction
Period (s)
0.3
SE
8
0.3
SE
8
0.2
SSE
7
0.3
SE
7
0.2
SSE
7
0.2
ESE
10
0.3
SE
10
0.4
SE
10
0.3
SE
11
0.3
SE
11
0.3
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
11
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.5
S
4
0.4
SE
10
0.3
SE
9
0.3
SE
9
0.3
SE
9
Energy kJ
9
9
5
8
5
10
16
28
18
18
18
29
29
29
29
28
27
26
25
8
23
14
14
13
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
10
0.1
SE
10
0.2
ESE
10
0.1
SE
10
0.2
ESE
10
0.2
SSE
7
0.2
SSE
7
0.4
ESE
9
0.3
ESE
9
0.2
E
10
0.3
SSE
5
0.3
SE
10
0.3
S
4
0.2
S
4
0.2
S
4
0.2
S
4
Energy kJ
4
4
10
4
10
5
4
29
16
8
4
15
3
1
1
1
Swell 3
Height (m)
Direction
Period (s)
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SE
10
0.3
SSE
7
0.2
E
9
0.3
WSW
4
0.1
S
6
0.1
S
6
0.1
S
6
0.1
S
6
Energy kJ
17
16
16
16
9
6
2
1
1
1
1
Wind waves
Height (m)
Direction
Period (s)
0.4
S
3
0.6
S
3
0.5
S
3
0.4
SSW
3
0.4
SW
3
0.4
SW
3
0.4
SSW
3
0.7
S
4
1
S
4
1
S
4
0.9
SSW
4
0.7
SSW
4
0.6
SSW
4
0.4
SSW
4
0.4
SSW
4
0.4
SSW
3
0.6
S
4
0.7
S
4
0.4
SSW
4
0.3
NE
2
Energy kJ
2
8
6
4
3
2
4
13
35
39
26
16
11
6
5
4
10
15
5
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
Distance (km)
87
87
87
87
87
29
29
87
88
510
482
29
29
29
29
86
88
482
29
29
86
86
82
26
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
4
6
5
4
4
5
5
4
4
4
4
4
4
4
4
4
5
5
4
5
5
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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