Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 8 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.4°C
1.3° 

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 (13 Sep):

  • Morning surf: Morning surf (13 Sep, local time) - 0.5ft (0.2m), 7s period with SSW swell.
  • Afternoon surf: Afternoon surf (13 Sep, local time) - 1ft (0.3m), 9s period with SE swell.
  • Evening surf: Evening surf (13 Sep, local time) - 1.5ft (0.4m), 8s period with SE swell.

The current surf forecast for Osaki at 4AM is: 0.3m 7s primary swell from a South-southwest direction and 0.1m 9s secondary swell from a Southeast direction (forecast issued at 08:00pm September 12). The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (13 Sep)0.5ft (0.2m)7s
Afternoon (13 Sep)1ft (0.3m)9s
Evening (13 Sep)1.5ft (0.4m)8s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Mon night. Warm (max 27°C on Mon afternoon, min 21°C on Sat night). Winds decreasing (fresh winds from the S on Mon afternoon, calm by Tue afternoon).

Sat
12
Sunday
13
Monday
14
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
Swell
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
0.3
SSW
7
0.3
SSW
7
0.3
SSW
7
0.2
SSW
7
0.2
SSW
7
0.3
SE
9
0.3
SE
9
0.4
SE
8
0.4
SE
8
0.4
SE
8
0.4
SE
7
0.4
SE
7
0.4
SE
7
0.3
ESE
12
0.8
S
4
0.8
SSW
4
0.4
SE
10
Wave Graph
Metric surfscale
Energy kJ
10
9
9
9
5
5
12
12
18
17
15
14
12
12
27
19
24
32
Wind (km/h)
15
NNE
20
NNE
15
NNE
15
NNE
10
NNE
15
NNE
5
ENE
10
SSE
15
SSW
15
S
15
SSW
15
SW
15
SW
20
SSW
30
S
35
S
30
SSW
25
SSW
Wind State
off
off
off
off
off
off
cross-off
cross-on
on
on
on
cross-on
on
on
on
on
on
on
High Tide
5:41PM1.48m
5:41AM1.58m
6:03PM1.50m
6:24AM1.58m
6:25PM1.51m
Low Tide
11:34PM0.56m
11:58AM0.45m
00:08AM0.45m
12:29PM0.55m
cloud
light rain
light rain
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:52
5:51
 mm
1
1
Temp °C
22
21
21
21
21
21
23
24
24
24
25
25
25
26
26
27
27
26
Feels °C
23
21
22
22
23
22
26
26
26
27
28
27
27
27
25
26
27
24
  • 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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