Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 8 am 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.3° 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 (10 Aug):

  • Morning surf: Morning surf (10 Aug, local time) - 1.5ft (0.5m), 11s period with S swell.
  • Afternoon surf: Afternoon surf (10 Aug, local time) - 2ft (0.6m), 11s period with SSW swell.
  • Evening surf: Evening surf (10 Aug, local time) - 1.5ft (0.5m), 10s period with SSW swell.

The current surf forecast for Osaki at 1PM is: 0.5m 11s primary swell from a South-southwest direction and 0.2m 12s secondary swell from a East-southeast direction (forecast issued at 08:00am August 10). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (10 Aug)1.5ft (0.5m)11s
Afternoon (10 Aug)2ft (0.6m)11s
Evening (10 Aug)1.5ft (0.5m)10s

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


Short Range Forecast

Heavy rain (total 39mm), heaviest during Tue night. Warm (max 29°C on Mon afternoon, min 23°C on Tue afternoon). Mainly fresh winds.

Monday
10
Tuesday
11
Wednesday
12
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)
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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)
0.6
S
10
0.5
S
11
0.5
SSW
11
0.6
SSW
11
0.5
SSW
11
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
11
0.5
SSW
11
0.9
SSW
10
1.1
SSW
5
1.4
S
5
1.2
S
6
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.5
SSW
10
0.4
SSW
10
0.4
SSW
10
Wave Graph
Metric surfscale
Energy kJ
75
62
66
93
64
59
59
58
58
62
64
64
189
52
106
85
58
58
59
59
40
40
Wind (km/h)
20
NE
15
NE
15
ENE
10
NE
25
NE
25
NE
25
NE
25
NE
20
NNE
15
N
20
SW
25
SSW
10
SW
20
SSW
30
S
15
SSE
30
SE
10
SE
10
NW
15
N
15
N
15
NNE
Wind State
off
off
cross-off
off
cross-off
off
cross-off
off
off
cross-off
on
on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
off
off
High Tide
4:47PM1.36m
2:03AM1.40m
5:17PM1.41m
3:09AM1.45m
5:43PM1.45m
Low Tide
8:54AM0.25m
9:16PM1.16m
9:46AM0.18m
10:08PM1.08m
10:31AM0.14m
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
heavy rain
heavy rain
light rain
light rain
thunderstorm
light rain
light rain
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:56
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:35
 mm
12
14
4
1
3
3
2
Temp °C
25
27
28
29
27
24
24
24
24
25
26
26
23
23
23
23
23
23
23
24
24
24
Feels °C
25
28
29
30
26
23
23
23
23
25
25
25
25
23
21
23
21
25
23
24
24
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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