Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 2 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.3° C
0.5° 

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 (09 Aug):

  • Afternoon surf: Afternoon surf (09 Aug, local time) - 2.5ft (0.7m), 10s period with SSW swell.
  • Evening surf: Evening surf (09 Aug, local time) - 2ft (0.6m), 11s period with SSW swell.

The current surf forecast for Osaki at 10PM is: 0.6m 11s primary swell from a South-southwest direction and 0.2m 13s secondary swell from a East-southeast direction, 0.3m 3s secondary swell from a South direction (forecast issued at 02:00pm August 09). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (09 Aug)--
Afternoon (09 Aug)2.5ft (0.7m)10s
Evening (09 Aug)2ft (0.6m)11s

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


Short Range Forecast

Moderate rain (total 19mm), heaviest on Wed morning. Warm (max 29°C on Sun afternoon, min 23°C on Mon night). Wind will be generally light.

Sun
9
Monday
10
Tuesday
11
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
1
0
1
1
0
1
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)
0.7
SSW
10
0.7
SSW
10
0.6
SSW
11
0.6
SSW
11
0.6
SSW
11
0.6
S
10
0.6
S
10
0.5
S
11
0.6
S
11
0.6
SSW
11
0.5
SSW
11
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
11
0.5
SSW
11
0.5
SSW
10
0.5
SSW
10
Wave Graph
Metric surfscale
Energy kJ
112
115
88
88
88
80
75
62
85
93
64
59
59
58
59
62
64
64
62
59
Wind (km/h)
5
SSE
10
S
15
S
15
SE
10
ENE
20
NE
20
NE
20
NE
20
ENE
15
NE
20
ENE
25
NE
20
NE
20
NE
15
NE
5
NNW
20
SW
15
WSW
5
WSW
10
WSW
Wind State
cross-on
on
on
cross
cross-off
cross-off
off
off
cross-off
off
cross-off
cross-off
cross-off
off
off
glassy
on
cross-on
cross-on
cross-on
High Tide
4:09PM1.28m
00:45AM1.38m
4:47PM1.36m
2:03AM1.40m
5:17PM1.41m
Low Tide
7:53PM1.19m
8:54AM0.25m
9:16PM1.16m
9:46AM0.18m
part cloud
clear
cloud
thunderstorm
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
part cloud
clear
cloud
cloud
thunderstorm
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:36
 mm
1
2
2
Temp °C
28
29
28
27
26
26
25
26
28
29
28
25
24
23
23
25
25
25
24
24
Feels °C
31
31
29
29
27
26
25
27
28
30
28
24
23
23
23
27
25
26
26
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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