Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 2 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.3°C
1.3° 

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 (14 Sep):

  • Morning surf: Morning surf (14 Sep, local time) - 0.5ft (0.2m), 7s period with SSE swell.
  • Afternoon surf: Afternoon surf (14 Sep, local time) - 3ft (0.9m), 4s period with S swell.
  • Evening surf: Evening surf (14 Sep, local time) - 1.5ft (0.4m), 10s period with SE swell.

The current surf forecast for Osaki at 5AM is: 0.4m 7s primary swell from a Southeast direction and 0.1m 7s secondary swell from a South direction, 0.2m 2s secondary swell from a South-southwest direction (forecast issued at 02:00am September 14). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (14 Sep)0.5ft (0.2m)7s
Afternoon (14 Sep)3ft (0.9m)4s
Evening (14 Sep)1.5ft (0.4m)10s

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


Short Range Forecast

Heavy rain (total 46mm), heaviest during Tue morning. Warm (max 27°C on Mon morning, min 21°C on Wed morning). Winds decreasing (fresh winds from the SSW on Mon afternoon, light winds from the N by Tue night).

Monday
14
Tuesday
15
Wednesday
16
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
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
0
0
0
0
Swell
Height Map
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
SE
8
0.4
SE
7
0.4
SE
7
0.2
SSE
7
0.3
SE
9
0.9
S
4
0.9
SSW
4
0.4
SE
10
0.3
E
14
0.4
SE
9
0.4
SE
9
1
SSE
8
0.6
SSE
8
1
S
4
0.8
S
5
0.5
SE
7
0.5
SE
7
0.4
SE
7
0.4
SE
7
0.4
SE
7
0.4
SE
7
0.4
SE
7
0.4
SE
8
0.4
SE
8
Wave Graph
Metric surfscale
Energy kJ
15
14
12
4
12
27
32
25
33
20
26
134
45
40
31
23
25
17
13
14
12
12
17
17
Wind (km/h)
20
SSW
15
SW
20
SW
25
SSW
35
SSW
35
SSW
30
SSW
30
SSW
40
SSW
25
SSW
25
SSW
25
SSW
20
S
15
SSW
10
SSW
5
N
15
NNE
20
NNE
30
NNE
25
NNE
25
NNE
25
NNE
25
NNE
25
NNE
Wind State
on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
glassy
off
off
off
off
off
off
off
off
High Tide
6:24AM1.58m
6:25PM1.51m
7:08AM1.53m
6:48PM1.52m
7:55AM1.46m
7:12PM1.51m
Low Tide
00:08AM0.45m
12:29PM0.55m
00:43AM0.37m
12:59PM0.67m
1:21AM0.32m
1:28PM0.80m
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
rain showers
part cloud
mod rain
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:22
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:51
5:50
5:47
 mm
1
6
16
7
2
1
1
1
1
1
2
4
Temp °C
24
25
25
26
27
27
27
26
24
23
24
23
23
23
23
24
23
22
22
21
21
21
21
21
Feels °C
26
27
26
26
25
25
26
25
22
22
23
23
24
25
26
28
25
23
21
19
19
19
20
20
  • 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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