Osaki Surf Break

Osaki 48 hour detailed Surf Forecast

Lat Long: 35.29° N 139.56° E

Issued: 2 am 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
21.9° C

1.0°C colder than average for this time of year

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 (18 Jun):

  • Morning surf: Morning surf (18 Jun, local time) - 2.5ft (0.8m), 7s period with S swell.
  • Afternoon surf: Afternoon surf (18 Jun, local time) - 3ft (0.9m), 7s period with S swell.
  • Evening surf: Evening surf (18 Jun, local time) - 3.5ft (1.0m), 7s period with S swell.

The current surf forecast for Osaki at 7AM is: 0.7m 6s primary swell from a South direction and 0.1m 10s secondary swell from a Southeast direction (forecast issued at 02:00am June 18). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Jun)2.5ft (0.8m)7s
Afternoon (18 Jun)3ft (0.9m)7s
Evening (18 Jun)3.5ft (1.0m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 31mm), heaviest during Sat night. Warm (max 25°C on Thu afternoon, min 20°C on Thu morning). Winds decreasing (strong winds from the N on Thu morning, calm by Thu night).

Thursday
18
Friday
19
Saturday
20
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
1
0
0
1
0
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)
0.4
SSE
4
0.5
S
5
0.7
S
6
0.8
S
7
0.9
S
7
0.9
S
7
0.9
S
7
1
S
7
1.1
SW
8
0.6
SSW
7
0.6
S
6
0.6
S
7
0.5
S
6
0.4
SSE
6
0.4
SSW
8
0.4
SW
8
0.3
SSW
7
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.5
SE
5
0.6
SE
5
0.7
SE
5
1
SE
6
Wave Graph
Metric surfscale
Energy kJ
6
13
40
58
78
81
79
103
166
42
28
31
19
12
26
15
10
9
9
9
11
20
27
59
Wind (km/h)
10
E
25
NNE
30
N
40
N
35
N
15
N
15
SSW
10
SSW
0
N
10
NNE
10
NE
5
E
10
S
15
S
15
SSE
15
ESE
15
ENE
20
ENE
20
ENE
15
ENE
5
ENE
10
SSE
20
SE
20
SE
Wind State
cross-off
off
off
cross-off
off
off
on
on
glassy
off
cross-off
cross-off
on
on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
cross-on
cross
High Tide
5:34AM1.46m
8:16PM1.39m
6:20AM1.42m
8:53PM1.37m
7:09AM1.36m
Low Tide
00:30AM1.01m
12:57PM-0.03m
1:14AM0.98m
1:38PM0.05m
2:01AM0.93m
2:19PM0.17m
light rain
mod rain
mod rain
light rain
part cloud
clear
part cloud
rain showers
clear
clear
clear
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
mod rain
mod rain
<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>
6:58
6:59
6:59
 mm
2
6
8
2
1
1
6
9
Temp °C
20
20
20
20
22
25
25
23
22
21
21
22
23
24
23
22
21
20
20
20
21
21
20
20
Feels °C
21
19
18
15
19
25
25
24
25
22
22
24
25
25
23
23
21
19
19
20
23
22
20
20
Swell 1
Height (m)
Direction
Period (s)
0.4
SSE
4
0.5
S
5
0.7
S
6
0.8
S
7
0.9
S
7
0.9
S
7
0.9
S
7
1
S
7
0.6
SSW
7
0.6
SSW
7
0.6
S
6
0.6
S
7
0.5
S
6
0.2
SSW
9
0.4
SSW
8
0.4
SE
5
0.3
SSW
7
0.2
SSE
5
0.2
SSW
6
0.2
SSW
7
0.2
SSW
7
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
Energy kJ
6
13
40
58
78
81
79
103
43
42
28
31
19
8
26
7
10
2
3
5
5
9
9
9
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
8
0.2
SSW
8
0.1
SE
10
0.2
SSE
8
0.2
SSE
9
0.2
SSE
9
0.2
NNE
3
0.3
SSE
9
0.5
SSE
7
0.4
SSE
7
0.3
SSW
7
0.1
SE
10
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.4
SW
8
0.3
SE
5
0.2
SSW
6
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.2
SSW
6
0.1
SW
6
0.1
SE
12
Energy kJ
3
6
4
7
8
9
1
16
27
18
10
4
10
10
10
15
4
4
9
9
9
4
2
6
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
10
0.1
SE
10
0.1
S
16
0.1
S
16
0.1
S
16
0.1
S
16
0.1
SE
9
0.1
SE
15
0.4
SSW
9
0.3
SW
8
0.1
SW
8
0.1
SW
8
0.1
SW
8
0.1
S
7
0.1
SE
14
0.2
SSE
10
0.2
SSE
10
0.2
SSE
10
0.1
SW
8
0.1
SE
13
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
E
10
Energy kJ
4
4
5
5
5
5
3
9
29
11
3
2
2
1
7
10
10
9
2
7
6
6
6
2
Wind waves
Height (m)
Direction
Period (s)
0.4
N
3
0.6
N
3
0.5
N
3
0.3
NNE
3
0.6
SW
4
1.1
SW
8
0.4
SSE
6
0.4
SE
6
0.4
ESE
3
0.4
ESE
4
0.4
SE
5
0.4
SE
4
0.5
SE
5
0.6
SE
5
0.7
SE
5
1
SE
6
Energy kJ
2
7
5
2
12
166
12
8
5
5
6
5
11
20
27
59
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
Distance (km)
487
37
50
54
91
0
15
15
0
0
37
37
17
64
64
64
248
50
50
522
992
992
844
146
Best forecast wave conditions in Kanagawa
Rating
(10 max)
1
2
1
2
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
2
3
1
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
2
2
Header Global
Rating
(10 max)
4
4
5
5
5
9
9
9
5
5
5
5
6
6
6
5
9
5
4
5
4
4
4
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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