Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 2 pm 28 Sep 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
24.8°C
0.0° 

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):

  • Afternoon surf: Afternoon surf (28 Sep, local time) - 2.5ft (0.8m), 6s period with SSW swell.
  • Evening surf: Evening surf (28 Sep, local time) - 3.5ft (1.0m), 7s period with S swell.

The current surf forecast for Osaki at 6PM is: 1.6m 7s primary swell from a South-southwest direction and 1.0m 6s secondary swell from a South-southwest direction (forecast issued at 02:00pm September 28). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (28 Sep)--
Afternoon (28 Sep)2.5ft (0.8m)6s
Evening (28 Sep)3.5ft (1.0m)7s

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


Short Range Forecast

Heavy rain (total 109mm), heaviest during Mon afternoon. Warm (max 24°C on Mon afternoon, min 18°C on Tue afternoon). Winds increasing (light winds from the N on Mon night, fresh winds from the NNE by Thu morning).

Mon
28
Tuesday
29
Wednesday
30
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
1
1
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)
1
SSW
6
0.8
SSW
6
1.6
SSW
7
1
S
7
0.9
S
7
0.8
S
7
0.7
S
7
0.6
S
7
0.3
SW
14
0.3
SW
14
0.4
SW
14
0.4
SW
13
0.4
SW
12
0.4
SSW
12
0.4
SSW
11
0.4
SSW
11
0.4
SSW
11
0.4
SSW
11
0.5
SSW
11
0.5
SSW
10
Wave Graph
Metric surfscale
Energy kJ
65
40
222
94
77
61
45
33
31
31
47
43
37
55
49
48
46
45
66
59
Wind (km/h)
25
S
15
SW
15
SW
5
N
10
N
10
NNE
15
NE
30
NNE
20
NNE
25
NNE
20
NE
15
NE
15
NE
15
NNE
20
NNE
20
NNE
20
NE
15
NE
15
NE
15
NNE
Wind State
on
cross-on
on
cross-off
off
off
cross-off
off
off
off
off
cross-off
off
off
off
off
off
cross-off
off
off
High Tide
5:48PM1.52m
6:45AM1.56m
6:11PM1.53m
7:30AM1.50m
6:36PM1.53m
Low Tide
11:59AM0.62m
00:13AM0.30m
12:30PM0.72m
00:49AM0.25m
1:00PM0.83m
heavy rain
heavy rain
thunderstorm
cloud
cloud
part cloud
cloud
light rain
light rain
mod rain
heavy rain
mod rain
light rain
light rain
cloud
cloud
cloud
cloud
cloud
light 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
—
—
—
—
—
—
—
5:28
—
—
 mm
11
29
1
—
—
—
—
1
5
8
12
9
4
2
—
—
—
—
—
1
Temp °C
23
23
24
24
23
23
23
20
19
19
18
18
18
18
19
19
19
19
19
19
Feels °C
23
24
26
27
25
25
24
17
17
17
17
17
17
17
17
18
17
18
18
18
  • 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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