Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 2 am 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.4° 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 (16 Aug):

  • Morning surf: Morning surf (16 Aug, local time) - 1.5ft (0.4m), 9s period with SSW swell.
  • Afternoon surf: Afternoon surf (16 Aug, local time) - 1.5ft (0.5m), 9s period with S swell.
  • Evening surf: Evening surf (16 Aug, local time) - 1.5ft (0.5m), 9s period with S swell.

The current surf forecast for Osaki at 8AM is: 0.4m 9s primary swell from a South-southwest direction and 0.4m 7s secondary swell from a Southeast direction (forecast issued at 02:00am August 16). An open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (16 Aug)1.5ft (0.4m)9s
Afternoon (16 Aug)1.5ft (0.5m)9s
Evening (16 Aug)1.5ft (0.5m)9s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Sun morning. Warm (max 28°C on Tue afternoon, min 24°C on Sun night). Wind will be generally light.

Sunday
16
Monday
17
Tuesday
18
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)
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.5
S
9
0.7
ESE
9
0.5
S
9
0.5
S
9
0.5
S
9
0.4
S
9
0.4
S
9
0.4
S
8
0.3
SSW
8
0.6
ESE
8
0.4
SSE
8
0.3
SSW
8
0.2
SSW
8
0.2
SSW
8
0.2
SSW
8
0.3
SE
6
0.3
SE
7
0.4
SE
7
0.4
SE
7
Wave Graph
Metric surfscale
Energy kJ
28
27
28
28
27
39
70
39
37
37
24
23
24
14
47
22
13
6
6
6
6
8
14
14
Wind (km/h)
15
NE
20
NE
20
NNE
20
NNE
10
ENE
15
ESE
15
ESE
15
E
10
ENE
10
ENE
15
NE
15
NE
10
ESE
10
SSE
10
SSE
10
ESE
10
ESE
5
NE
10
NE
10
NE
5
E
10
S
15
SSE
10
SE
Wind State
cross-off
off
off
off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross
cross-off
off
off
cross-off
glassy
on
cross-on
cross
High Tide
6:26AM1.55m
7:18PM1.48m
7:12AM1.50m
7:41PM1.48m
8:00AM1.43m
8:06PM1.47m
Low Tide
00:35AM0.68m
12:57PM0.34m
1:12AM0.59m
1:28PM0.46m
1:51AM0.52m
1:59PM0.61m
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
rain showers
clear
part cloud
part cloud
part cloud
rain showers
light rain
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:01
5:01
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:29
6:28
 mm
1
1
1
1
1
Temp °C
25
24
23
25
26
27
26
25
25
24
24
25
26
27
27
26
25
25
24
26
27
28
27
26
Feels °C
27
25
23
25
28
29
27
26
27
26
26
26
28
29
29
28
28
29
27
29
30
30
29
29
  • 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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