Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 2 am 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.9°C
1.1° 

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 (30 Aug):

  • Morning surf: Morning surf (30 Aug, local time) - 1.5ft (0.4m), 7s period with SSW swell.
  • Afternoon surf: Afternoon surf (30 Aug, local time) - 1ft (0.3m), 7s period with SSW swell.
  • Evening surf: Evening surf (30 Aug, local time) - 1ft (0.3m), 7s period with SSW swell.

The current surf forecast for Osaki at 7AM is: 0.4m 7s primary swell from a South-southwest direction and 0.2m 10s secondary swell from a South-southeast direction (forecast issued at 02:00am August 30). The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (30 Aug)1.5ft (0.4m)7s
Afternoon (30 Aug)1ft (0.3m)7s
Evening (30 Aug)1ft (0.3m)7s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sun morning. Warm (max 28°C on Tue afternoon, min 22°C on Sun morning). Wind will be generally light.

Sunday
30
Monday
31
Tuesday
1
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
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SSW
8
0.4
SSW
7
0.4
SSW
7
0.4
SSW
7
0.4
SSW
7
0.3
SSW
7
0.3
SSW
7
0.3
SSW
7
0.3
SSW
7
0.3
SSW
7
0.3
SSW
7
0.3
SSW
7
0.2
SSE
10
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
Wave Graph
Metric surfscale
Energy kJ
12
18
17
18
18
10
10
10
11
10
10
11
9
9
9
16
15
15
14
14
15
15
13
14
Wind (km/h)
20
NNE
20
NNE
25
N
20
N
15
NNE
10
NE
5
ESE
5
NE
10
NE
10
NE
15
NE
20
NE
20
NE
15
NE
15
NE
15
NE
15
NE
15
NNE
15
NNE
15
NNE
10
NE
10
SSE
10
S
10
S
Wind State
off
off
off
off
off
off
glassy
glassy
off
cross-off
off
off
cross-off
off
off
off
off
off
off
off
cross-off
cross-on
on
on
High Tide
6:04AM1.58m
6:41PM1.49m
6:48AM1.55m
7:03PM1.50m
7:33AM1.49m
7:26PM1.50m
Low Tide
00:05AM0.62m
12:27PM0.39m
00:39AM0.52m
12:58PM0.50m
1:16AM0.45m
1:29PM0.63m
cloud
light rain
light rain
light rain
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:10
6:09
 mm
1
1
1
1
Temp °C
21
21
22
22
23
24
25
25
25
25
24
24
24
24
25
24
24
24
24
25
27
28
27
27
Feels °C
20
20
21
22
24
26
29
29
29
28
25
25
25
26
27
26
26
26
26
27
30
31
30
31
  • 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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