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Surf Forecasts:

Shonan surf break

Shonan surfForecast / Kanagawa / Japan

information circle48hr Weather and Surf, issued 8 pm Thursday 23 Apr 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
18.7° C
 (Which is normal for this time of year)

How big are the waves at Shonan today?

The current surf forecast for Shonan at 5AM is: 0.3m 6s primary swell from a Southeast direction and 0.1m 12s secondary swell from a Southeast direction (forecast issued at 08:00pm April 23). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (24 Apr)1.5ft (0.4m)8s
Afternoon (24 Apr)1.5ft (0.5m)8s
Evening (24 Apr)2ft (0.6m)8s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast

Heavy rain (total 24mm), heaviest during Thu night. Very mild (max 17°C on Fri afternoon, min 12°C on Fri night). Winds decreasing (fresh winds from the N on Thu night, light winds from the ESE by Sat night).

Thu
23
Friday
24
Saturday
25
Sunday
26
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
12 PM
3 PM
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
<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><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)
0.2
E
9
0.2
E
9
0.2
E
9
0.2
E
9
0.3
SE
6
0.4
SSW
8
0.6
S
8
0.5
S
8
0.6
S
8
0.6
S
8
0.5
S
8
0.5
S
8
0.5
S
8
0.4
S
8
0.4
SSE
7
0.4
SSE
7
0.5
SE
3
0.4
SE
4
0.3
SE
5
0.4
SE
5
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
Wave Graph
Metric surfscale
Energy kJ
7
7
7
7
6
26
51
37
51
50
34
31
29
18
18
18
6
6
4
7
8
8
8
8
Wind (km/h)
10
NNE
25
NNE
35
N
30
NNE
25
NNE
20
NNE
20
ENE
15
ESE
10
SE
20
ENE
15
ENE
20
NE
20
NE
15
NE
10
ENE
10
ESE
20
SE
10
SE
5
ESE
5
ESE
10
ENE
10
E
5
S
10
SW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
High Tide
11:45PM1.20m
7:42AM1.28m
1:12AM1.23m
9:40AM1.15m
1:50AM1.27m
12:28PM1.12m
Low Tide
3:07PM0.27m
2:55AM1.16m
4:30PM0.40m
6:16AM1.11m
6:02PM0.48m
7:43AM0.94m
mod rain
heavy rain
mod rain
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
clear
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
4:58
—
—
—
—
—
—
—
4:58
—
—
—
—
—
—
—
4:56
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:20
—
—
—
—
—
—
—
6:21
—
—
—
—
—
—
—
6:22
—
—
—
—
—
—
6:22
 mm
8
13
8
2
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
14
14
14
14
14
15
16
17
17
15
14
13
12
13
15
16
15
14
14
13
13
14
16
16
Feels °C
13
10
8
9
9
11
12
14
15
11
10
8
7
8
11
13
10
11
12
11
11
12
14
14
Swell 1
Height (m)
Direction
Period (s)
0.3
SE
6
0.2
SSE
6
0.2
SSE
5
0.3
SE
6
0.3
SE
6
0.4
SSW
8
0.6
S
8
0.5
S
8
0.6
S
8
0.6
S
8
0.5
S
8
0.5
S
8
0.5
S
8
0.4
S
8
0.4
SSE
7
0.4
SSE
7
0.2
S
7
0.2
S
7
0.3
SE
5
0.4
SE
5
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
Energy kJ
6
4
3
6
6
20
51
37
51
50
34
31
29
18
18
18
4
4
4
7
8
8
8
8
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.4
SSE
8
0.4
SSW
8
0.4
SSW
8
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
E
12
0.1
SE
12
0.1
SE
4
0.1
SE
12
0.1
E
11
0.1
SW
8
0.1
E
11
0.1
S
7
0.1
S
7
0.1
S
6
0.1
S
7
0.1
S
6
0.1
S
6
Energy kJ
6
6
6
6
5
26
26
26
5
5
5
3
5
1
5
2
2
2
1
1
1
1
1
1
Swell 3
Height (m)
Direction
Period (s)
0.2
E
9
0.2
E
9
0.2
E
9
0.2
E
9
0.1
S
7
0.1
SE
12
0.1
E
7
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.2
E
9
0.2
E
9
0.1
SE
12
0.2
S
7
0.1
SW
8
0.1
E
11
0.1
SE
11
0.1
S
6
0.1
S
6
0.1
S
7
—
0.1
E
11
—
Energy kJ
7
7
7
7
1
5
1
5
5
5
5
6
6
5
4
2
2
5
1
1
1
—
2
—
Wind waves
Height (m)
Direction
Period (s)
—
—
0.6
NNE
3
0.8
NNE
4
0.7
NNE
4
0.6
NNE
4
0.4
NE
3
—
0.2
ESE
2
—
—
0.3
ENE
2
0.4
ENE
3
0.2
ENE
3
—
—
0.5
SE
3
0.4
SE
4
—
—
—
—
—
—
Energy kJ
—
—
8
16
12
8
3
—
1
—
—
1
2
1
—
—
6
6
—
—
—
—
—
—
Nearest Offshore or Glassy
Ohara
Chiba
Katagai
Chiba
Akabane Long Beach
Shizuoka
Suruga Bay
Shizuoka
Suruga Bay
Shizuoka
Sakawa River
Kanagawa
Suruga Bay
Shizuoka
Mera
Chiba
Sakawa River
Kanagawa
Uchiboso
Chiba
Uchiboso
Chiba
Omaezaki
Shizuoka
Tainohama
Shikoku
Asakawa
Shikoku
Tainohama
Shikoku
Keta Reef Oshima
Izu Islands
Dragons Leaf
Kyu Shu
Ohara
Chiba
Sakawa River
Kanagawa
Uchiboso
Chiba
Uchiboso
Chiba
Ohara
Chiba
Kurihama
Kanagawa
Keta Reef Oshima
Izu Islands
Rating
(10 max)
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
3
2
1
1
1
2
1
1
Distance (km)
87
95
220
128
128
29
128
59
29
47
47
138
480
501
480
65
747
87
29
47
47
87
26
65
Best forecast wave conditions in Kanagawa
Sakawa River
Sakawa River
Sakawa River
Uraga Point
Rating
(10 max)
1
1
1
1
Best forecast wave conditions in Japan
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Kaiser's (Hachijojima Island)
Izu Islands
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Omaezaki
Shizuoka
Niyodo Rivermouth
Shikoku
Akabane Long Beach
Shizuoka
Omaezaki
Shizuoka
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Takanabe
Kyu Shu
Niyodo Rivermouth
Shikoku
Ada
Okinawa
Keta Reef Oshima
Izu Islands
Takanabe
Kyu Shu
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Nunoshima
Shikoku
Uchiboso
Chiba
Keta Reef Oshima
Izu Islands
Rating
(10 max)
3
3
2
3
2
2
2
2
2
2
1
1
2
3
2
1
4
3
3
3
3
3
1
1
Header Global
Fish Boma
South Africa
Lebu
Chile
Bocock's Bay
Namibia
Bocock's Bay
Namibia
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Lebu
Chile
Trial Harbour
Australia
Bali Village
Indonesia
Lebu
Chile
Bankvaults
Indonesia
Bankvaults
Indonesia
Bali Village
Indonesia
Bali Village
Indonesia
Bali Village
Indonesia
Asu
Indonesia
Nugget Point
New Zealand
Nugget Point
New Zealand
Papatowai
New Zealand
Rating
(10 max)
5
5
5
5
5
5
5
5
5
5
5
5
5
4
5
4
4
4
4
4
4
5
6
7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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