Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 8 am 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.5°C
0.7° 

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 (26 Aug):

  • Morning surf: Morning surf (26 Aug, local time) - 2.5ft (0.8m), 12s period with SSW swell.
  • Afternoon surf: Afternoon surf (26 Aug, local time) - 2.5ft (0.7m), 12s period with SSW swell.
  • Evening surf: Evening surf (26 Aug, local time) - 2ft (0.6m), 11s period with SSW swell.

The current surf forecast for Osaki at 3PM is: 0.7m 12s primary swell from a South-southwest direction and 0.5m 9s secondary swell from a South-southeast direction, 0.9m 4s secondary swell from a South-southwest direction (forecast issued at 08:00am August 26). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (26 Aug)2.5ft (0.8m)12s
Afternoon (26 Aug)2.5ft (0.7m)12s
Evening (26 Aug)2ft (0.6m)11s

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


Short Range Forecast

Moderate rain (total 15mm), heaviest on Thu morning. Warm (max 30°C on Wed afternoon, min 24°C on Thu afternoon). Wind will be generally light.

Wednesday
26
Thursday
27
Friday
28
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
1
0
0
0
0
0
0
0
0
0
1
1
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)
1
S
12
0.8
SSW
12
0.8
SSW
11
0.7
SSW
12
0.7
SSW
11
0.6
SSW
11
0.5
SSW
11
0.5
SSE
9
0.4
SSW
10
0.8
SSW
6
0.8
SSW
6
0.5
S
11
0.5
S
10
0.5
S
10
0.5
S
10
0.6
S
9
0.5
S
9
0.5
S
9
0.5
S
9
0.8
SSW
6
0.9
SW
6
0.5
S
8
Wave Graph
Metric surfscale
Energy kJ
280
183
167
137
130
95
68
46
40
34
37
55
49
47
45
63
41
40
39
50
61
33
Wind (km/h)
10
WSW
10
SSW
25
S
20
SSW
25
SSW
25
SSW
20
SW
20
SW
15
SW
15
SW
25
N
25
NNE
10
NE
20
SW
20
SSW
15
WSW
0
W
25
SSW
15
WSW
10
W
5
SW
5
W
Wind State
cross-on
on
on
on
on
on
on
cross-on
cross-on
on
off
off
cross-off
cross-on
on
cross-on
glassy
on
cross-on
cross-on
cross-on
cross
High Tide
5:10PM1.43m
3:40AM1.47m
5:33PM1.46m
4:32AM1.53m
5:56PM1.47m
Low Tide
10:00AM0.23m
10:21PM0.97m
10:42AM0.22m
10:57PM0.85m
11:20AM0.24m
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
light rain
light rain
light rain
cloud
light rain
thunderstorm
cloud
cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:09
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:17
6:15
6:15
 mm
1
1
3
3
1
1
2
1
1
Temp °C
28
28
28
30
30
28
28
28
27
28
26
25
24
24
25
25
24
25
27
27
27
27
Feels °C
32
32
30
31
31
29
30
31
30
32
26
24
26
25
26
27
29
26
30
30
30
30
  • 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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