Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 8 am 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
26.9° C
0.0° 

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 (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 1.5ft (0.4m), 6s period with SE swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 1ft (0.3m), 6s period with SSE swell.
  • Evening surf: Evening surf (19 Aug, local time) - 0.5ft (0.2m), 6s period with SSE swell.

The current surf forecast for Osaki at 11AM is: 0.2m 6s primary swell from a South-southeast direction and 0.1m 6s secondary swell from a Southeast direction (forecast issued at 08:00am August 19). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (19 Aug)1.5ft (0.4m)6s
Afternoon (19 Aug)1ft (0.3m)6s
Evening (19 Aug)0.5ft (0.2m)6s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Wed morning, min 25°C on Wed night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
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
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
Wave
Height (m)
Direction
Period (s)
0.4
SE
6
0.4
SE
6
0.2
SSE
6
0.3
SSE
6
0.2
SSE
6
0.2
SSE
6
0.2
SSW
8
0.2
SSE
6
0.2
SSE
6
0.2
SSE
6
0.2
SSE
6
0.2
SSW
9
0.2
SSW
9
0.2
S
10
0.2
S
10
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.6
S
9
0.8
S
9
0.9
SSW
9
0.4
SSW
9
Wave Graph
Metric surfscale
Energy kJ
10
10
4
7
4
4
6
4
4
4
4
8
8
8
8
25
27
27
57
101
132
26
Wind (km/h)
5
SE
5
SSE
10
S
15
S
15
S
15
S
10
S
5
S
5
SSE
10
SSE
10
SSW
15
SSW
10
SSW
10
SSW
15
SSW
10
SSW
15
SSW
15
S
25
S
25
S
30
S
20
SSW
Wind State
glassy
glassy
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
on
on
on
on
on
High Tide
8:53AM1.34m
8:32PM1.46m
9:59AM1.24m
9:00PM1.45m
11:32AM1.17m
Low Tide
2:29PM0.75m
3:23AM0.45m
3:00PM0.90m
4:23AM0.44m
3:34PM1.04m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
5:03
5:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:27
6:24
6:23
 mm
Temp °C
25
26
27
27
27
26
26
26
25
26
27
27
27
26
26
26
25
26
27
27
27
27
Feels °C
29
30
30
28
28
28
29
30
28
29
29
28
29
28
29
29
28
28
28
27
27
28
  • 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.


Nearest locationNearest