Osaki Surf Break

Osaki 48 hour detailed Surf Forecast

Lat Long: 35.29° N 139.56° E

Issued: 2 am 21 Jun 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
22.5° C

Slightly cooler than normal

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


How big are the waves at Osaki today (21 Jun):

  • Morning surf: Morning surf (21 Jun, local time) - 3.5ft (1.1m), 5s period with S swell.
  • Afternoon surf: Afternoon surf (21 Jun, local time) - 6ft (1.8m), 6s period with SSW swell.
  • Evening surf: Evening surf (21 Jun, local time) - 4ft (1.2m), 7s period with SSW swell.

The current surf forecast for Osaki at 10AM is: 1.2m 6s primary swell from a South-southwest direction and 0.1m 10s secondary swell from a Southeast direction, 0.1m 11s secondary swell from a Southeast direction (forecast issued at 02:00am June 21). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Jun)3.5ft (1.1m)5s
Afternoon (21 Jun)6ft (1.8m)6s
Evening (21 Jun)4ft (1.2m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 4mm), mostly falling on Mon night. Warm (max 28°C on Sun afternoon, min 19°C on Mon night). Winds decreasing (fresh winds from the SW on Sun afternoon, light winds from the E by Tue afternoon).

Sunday
21
Monday
22
Tuesday
23
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
0
0
3
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SSE
4
1.3
SSE
5
1.3
S
5
1.1
S
5
1.4
SSW
6
1.8
SSW
6
2.2
SW
7
1.2
SSW
7
0.9
SSW
8
0.8
SSW
8
0.6
SSW
8
0.5
SSW
8
0.5
SSW
8
0.4
S
6
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.3
SE
11
0.3
SE
11
0.2
SSE
11
Wave Graph
Metric surfscale
Energy kJ
39
98
94
71
128
255
507
153
108
78
53
37
34
12
10
10
10
10
12
13
13
20
19
12
Wind (km/h)
45
SSE
40
S
35
SSW
30
SSW
30
SW
35
SW
15
N
30
N
25
NNE
20
N
15
NNE
15
NE
10
SE
15
S
15
E
20
NE
15
NE
15
NE
20
NE
20
NE
15
NNE
5
E
10
SSE
15
E
Wind State
cross-on
cross-on
on
on
on
cross-on
cross-off
off
off
off
off
off
cross-on
cross-on
cross-off
cross-off
off
cross-off
cross-off
off
off
cross-off
cross-on
cross-off
High Tide
9:28PM1.35m
8:05AM1.28m
10:04PM1.33m
9:12AM1.19m
10:40PM1.32m
10:34AM1.11m
Low Tide
2:54AM0.87m
3:02PM0.31m
3:53AM0.80m
3:47PM0.46m
4:58AM0.71m
4:37PM0.61m
mod rain
light rain
thunderstorm
thunderstorm
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
light rain
light rain
cloud
cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:26
4:26
4:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
6:59
6:59
 mm
8
2
2
1
2
1
Temp °C
21
23
23
23
25
28
26
24
22
22
21
22
23
23
22
20
19
19
19
19
21
22
22
21
Feels °C
16
20
22
23
25
25
27
21
20
21
20
21
24
23
22
19
19
18
18
17
20
22
23
21
Swell 1
Height (m)
Direction
Period (s)
0.1
SW
7
0.1
SE
12
0.1
SE
9
0.1
SE
9
0.1
SE
11
0.1
SE
11
1.6
SSW
7
1.2
SSW
7
0.9
SSW
8
0.8
SSW
8
0.6
SSW
8
0.5
SSW
8
0.5
SSW
8
0.2
SSW
8
0.2
SSW
7
0.2
SSE
10
0.3
SE
3
0.2
SSE
10
0.2
SSE
11
0.2
SSE
11
0.2
SSE
11
0.3
SE
11
0.3
SE
11
0.2
SSE
11
Energy kJ
2
5
3
3
5
5
229
153
108
78
53
37
34
6
5
10
2
10
12
13
13
20
19
12
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
12
0.2
SSE
12
0.1
SE
12
0.1
SE
11
0.1
SE
9
0.1
SE
9
0.1
SE
11
0.2
SSE
9
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.2
SSW
8
0.2
SSW
8
0.2
S
6
0.2
SSW
6
0.1
S
6
0.1
S
6
0.1
S
6
0.1
S
6
0.1
S
6
Energy kJ
6
13
5
5
3
3
5
8
10
10
10
10
10
10
10
6
6
3
4
1
1
1
1
1
Swell 3
Height (m)
Direction
Period (s)
0.1
E
10
0.2
E
10
0.1
E
10
0.1
E
18
0.2
E
6
0.2
E
10
0.1
SE
9
0.1
SE
11
0.1
E
16
0.1
E
16
0.1
E
16
0.1
E
16
0.2
E
10
0.1
E
10
0.2
S
6
0.2
S
6
0.2
SSE
10
0.1
SW
7
0.1
S
11
0.1
SW
6
0.1
S
10
0.1
S
10
0.1
S
10
0.1
S
10
Energy kJ
2
7
2
6
3
7
3
5
5
5
5
5
8
2
3
3
10
2
2
2
2
2
2
2
Wind waves
Height (m)
Direction
Period (s)
1
SSE
4
1.3
SSE
5
1.3
S
5
1.1
S
5
1.4
SSW
6
1.8
SSW
6
2.2
SW
7
0.2
NNE
2
0.4
S
6
0.4
S
3
0.4
SE
3
0.4
NE
3
0.5
NE
3
0.4
NE
3
0.4
NE
3
0.2
ENE
3
0.2
ESE
2
Energy kJ
39
98
94
71
128
255
507
1
12
3
3
3
5
3
3
1
1
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
3
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
Distance (km)
491
491
136
229
30
470
0
38
0
0
0
0
15
50
64
37
15
50
50
50
146
73
64
64
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
3
1
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
3
3
2
2
3
1
4
3
3
2
2
1
2
2
3
3
4
1
1
3
1
2
Header Global
Rating
(10 max)
5
5
5
9
9
9
8
8
7
7
7
6
6
6
7
7
5
5
5
5
5
6
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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