Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 2 pm 15 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 (15 Aug):

  • Afternoon surf: Afternoon surf (15 Aug, local time) - 3ft (0.9m), 8s period with ESE swell.
  • Evening surf: Evening surf (15 Aug, local time) - 1.5ft (0.4m), 10s period with SSW swell.

The current surf forecast for Osaki at 11PM is: 0.5m 8s primary swell from a Southeast direction and 0.4m 9s secondary swell from a South-southwest direction (forecast issued at 02:00pm August 15). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (15 Aug)--
Afternoon (15 Aug)3ft (0.9m)8s
Evening (15 Aug)1.5ft (0.4m)10s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Sun afternoon. Warm (max 28°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light.

Sat
15
Sunday
16
Monday
17
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)
0.4
SSW
11
0.9
ESE
8
0.6
SSE
8
0.4
SSW
10
0.5
SE
8
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.5
S
9
0.7
SE
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
0.6
ESE
8
0.3
SSW
8
0.3
SSW
8
Wave Graph
Metric surfscale
Energy kJ
37
117
45
32
30
27
28
28
27
39
81
39
37
37
24
23
22
47
14
13
Wind (km/h)
10
NE
15
SE
20
ESE
15
E
15
ENE
20
NE
20
NNE
20
NNE
15
ENE
10
ESE
10
ESE
15
E
10
E
10
ENE
15
NE
10
NE
5
E
5
SSE
10
S
10
SE
Wind State
off
cross
cross
cross-off
cross-off
off
off
off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
on
cross
High Tide
6:55PM1.48m
6:26AM1.55m
7:18PM1.48m
7:12AM1.50m
7:41PM1.48m
Low Tide
12:23PM0.24m
00:35AM0.68m
12:57PM0.34m
1:12AM0.59m
1:28PM0.46m
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
rain showers
part cloud
rain showers
rain showers
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:01
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:30
6:29
 mm
1
1
1
Temp °C
28
28
27
25
25
24
24
25
26
27
26
25
25
24
24
25
26
27
27
26
Feels °C
29
29
27
25
26
24
24
26
27
29
27
26
27
27
26
27
29
30
29
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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