Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 8 pm 27 Sep 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
25.1°C
0.2° 

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 (28 Sep):

  • Morning surf: Morning surf (28 Sep, local time) - 2.5ft (0.8m), 5s period with SSW swell.
  • Afternoon surf: Afternoon surf (28 Sep, local time) - 2.5ft (0.8m), 5s period with SSW swell.
  • Evening surf: Evening surf (28 Sep, local time) - 3ft (0.9m), 7s period with SSW swell.

The current surf forecast for Osaki at 3AM is: 0.6m 7s primary swell from a South-southwest direction and 0.1m 9s secondary swell from a Southeast direction, 0.1m 13s secondary swell from a South direction (forecast issued at 08:00pm September 27). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (28 Sep)2.5ft (0.8m)5s
Afternoon (28 Sep)2.5ft (0.8m)5s
Evening (28 Sep)3ft (0.9m)7s

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


Short Range Forecast

Heavy rain (total 53mm), heaviest during Tue afternoon. Warm (max 25°C on Mon afternoon, min 17°C on Tue night). Wind will be generally light.

Sun
27
Monday
28
Tuesday
29
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
1
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
Wave
Height (m)
Direction
Period (s)
0.5
S
7
0.6
S
7
0.5
S
7
0.6
SSW
7
0.6
SSW
6
0.8
SSW
5
1
SSW
5
0.8
SSW
5
0.5
S
5
0.9
SSW
7
0.8
S
7
0.8
S
7
0.7
S
7
0.6
S
7
0.3
SW
13
0.3
SW
13
0.4
SW
14
0.4
SW
13
Wave Graph
Metric surfscale
Energy kJ
24
34
24
34
32
27
51
32
14
77
59
57
44
32
27
27
46
44
Wind (km/h)
0
W
10
SW
15
SSW
20
SW
30
SSW
25
SSW
25
SW
20
SW
10
NNW
5
SW
10
SW
5
NNW
20
NNE
25
NNE
20
N
25
N
25
NNE
20
NNE
Wind State
glassy
on
on
on
on
on
on
cross-on
cross-off
glassy
on
cross-off
off
off
off
off
off
off
High Tide
5:26PM1.50m
6:01AM1.58m
5:48PM1.52m
6:45AM1.56m
6:11PM1.53m
Low Tide
11:38PM0.39m
11:59AM0.62m
00:13AM0.30m
12:30PM0.72m
cloud
cloud
cloud
cloud
light rain
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
mod rain
heavy rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
5:33
—
—
—
—
—
—
—
5:33
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
—
5:30
—
—
—
—
—
—
—
5:29
—
—
 mm
—
—
—
—
1
1
—
—
—
—
—
—
—
—
3
10
18
6
Temp °C
23
23
23
23
23
23
24
25
24
24
24
23
22
21
19
19
18
18
Feels °C
26
24
24
23
22
22
24
25
26
27
27
25
21
18
18
17
15
17
  • 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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