Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 2 pm 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
28.2°C
1.6° 

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 (31 Aug):

  • Afternoon surf: Afternoon surf (31 Aug, local time) - 0.5ft (0.2m), 10s period with SSE swell.
  • Evening surf: Evening surf (31 Aug, local time) - 1ft (0.3m), 9s period with SSW swell.

The current surf forecast for Osaki at 9PM is: 0.3m 9s primary swell from a South-southwest direction and 0.2m 9s secondary swell from a South-southeast direction (forecast issued at 02:00pm August 31). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (31 Aug)--
Afternoon (31 Aug)0.5ft (0.2m)10s
Evening (31 Aug)1ft (0.3m)9s

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


Short Range Forecast

Mostly dry. Warm (max 27°C on Thu morning, min 23°C on Mon night). Wind will be generally light.

Mon
31
Tuesday
1
Wednesday
2
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
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)
0.3
SSW
7
0.2
SSE
10
0.2
SSE
9
0.3
SSW
9
0.3
SSW
9
0.3
SSW
9
0.3
SSW
8
0.2
E
12
0.3
SSW
9
0.3
SSW
9
0.3
SSW
8
0.3
SSW
8
0.3
SSW
8
0.3
SSW
8
0.3
SSW
8
0.3
SSW
8
0.3
SSW
8
0.4
SSW
8
0.4
SSW
8
0.4
SSW
8
Wave Graph
Metric surfscale
Energy kJ
11
9
9
16
15
15
14
14
15
15
13
14
14
14
14
14
14
24
24
24
Wind (km/h)
20
NE
15
NE
20
NE
20
NE
15
NE
15
NE
15
NE
10
ENE
5
ENE
10
S
10
S
5
SSE
0
SE
5
SSW
0
S
5
SSE
10
S
15
S
15
S
15
S
Wind State
cross-off
off
cross-off
cross-off
cross-off
cross-off
off
cross-off
glassy
on
cross-on
glassy
glassy
glassy
glassy
glassy
on
on
on
on
High Tide
7:03PM1.50m
7:33AM1.49m
7:26PM1.50m
8:22AM1.41m
7:51PM1.49m
Low Tide
12:58PM0.50m
1:16AM0.45m
1:29PM0.63m
1:56AM0.40m
1:58PM0.77m
cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:10
6:09
6:07
 mm
Temp °C
24
26
25
24
24
23
23
24
26
26
26
25
25
24
24
25
26
26
26
26
Feels °C
24
27
25
24
25
24
23
25
28
27
28
28
29
27
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.


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