Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 2 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.2°C
0.4° 

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 (23 Aug):

  • Morning surf: Morning surf (23 Aug, local time) - 1.5ft (0.4m), 9s period with SSW swell.
  • Afternoon surf: Afternoon surf (23 Aug, local time) - 1ft (0.3m), 13s period with SE swell.
  • Evening surf: Evening surf (23 Aug, local time) - 1.5ft (0.4m), 12s period with SE swell.

The current surf forecast for Osaki at 11AM is: 0.4m 9s primary swell from a South-southwest direction and 0.2m 13s secondary swell from a South-southeast direction (forecast issued at 02:00am August 23). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (23 Aug)1.5ft (0.4m)9s
Afternoon (23 Aug)1ft (0.3m)13s
Evening (23 Aug)1.5ft (0.4m)12s

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


Short Range Forecast

Mostly dry. Warm (max 28°C on Sun morning, min 26°C on Sun morning). Winds increasing (calm on Sun night, fresh winds from the S by Tue afternoon).

Sunday
23
Monday
24
Tuesday
25
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
0
0
0
0
2
1
0
0
0
0
0
1
0
1
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
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
8
0.3
SE
13
0.3
SE
12
0.4
SE
12
0.5
SE
13
0.6
SSE
13
0.5
SSE
16
0.6
SSE
18
1
SSE
14
0.9
SSE
17
1.1
SSE
14
1.6
SSE
15
1.7
SSE
15
1.6
SSE
14
1.3
SSE
13
1.5
S
14
1.6
S
14
1.3
SSE
13
1.6
S
14
1.5
S
14
Wave Graph
Metric surfscale
Energy kJ
31
26
26
25
24
27
23
38
82
113
138
254
362
486
501
1265
1275
939
590
899
971
590
1030
816
Wind (km/h)
5
ENE
10
NE
15
NE
15
NE
5
E
15
S
10
S
10
SSE
10
S
5
S
5
SSE
10
S
15
S
25
SSW
30
S
25
SSW
25
SSW
20
SSW
20
SW
15
SSW
25
S
30
S
30
SSW
25
SSW
Wind State
cross-off
cross-off
off
cross-off
cross-off
cross-on
on
cross-on
cross-on
cross-on
glassy
cross-on
on
on
on
on
on
on
on
on
on
on
on
on
High Tide
10:25PM1.38m
3:38PM1.26m
11:45PM1.35m
4:17PM1.34m
1:21AM1.36m
4:45PM1.39m
Low Tide
6:58AM0.39m
6:54PM1.21m
8:12AM0.33m
8:44PM1.17m
9:11AM0.27m
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:07
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:22
6:20
6:19
 mm
Temp °C
26
26
25
26
28
27
27
26
26
26
26
26
27
27
27
27
27
26
26
27
28
28
28
27
Feels °C
30
30
28
28
31
29
30
29
30
31
31
30
29
28
27
28
29
28
28
30
29
28
28
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 Osaki 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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