Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki 48 hour detailed Surf Forecast

Issued: 2 am 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.3° C
0.4° 

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 Aug):

  • Morning surf: Morning surf (14 Aug, local time) - 1ft (0.3m), 9s period with SSW swell.
  • Afternoon surf: Afternoon surf (14 Aug, local time) - 1.5ft (0.4m), 9s period with SSW swell.
  • Evening surf: Evening surf (14 Aug, local time) - 1ft (0.3m), 9s period with SSW swell.

The current surf forecast for Osaki at 8AM is: 0.3m 9s primary swell from a South-southwest direction and 0.2m 6s secondary swell from a East-southeast direction (forecast issued at 02:00am August 14). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (14 Aug)1ft (0.3m)9s
Afternoon (14 Aug)1.5ft (0.4m)9s
Evening (14 Aug)1ft (0.3m)9s

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


Short Range Forecast

Heavy rain (total 22mm), heaviest during Fri night. Warm (max 29°C on Fri afternoon, min 24°C on Sat night). Wind will be generally light.

Friday
14
Saturday
15
Sunday
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
1
0
1
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
SSW
9
0.4
SSW
9
0.3
SSW
9
0.3
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.3
SSW
9
0.3
SSE
10
0.3
SSW
11
0.9
ESE
9
0.4
SSW
11
0.5
SE
9
0.9
ESE
8
0.4
SSW
10
0.7
SE
8
0.5
SE
8
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
SSW
9
0.4
S
9
0.4
S
9
Wave Graph
Metric surfscale
Energy kJ
28
28
16
16
28
29
29
16
20
25
149
40
38
117
33
63
30
27
28
28
27
27
24
24
Wind (km/h)
25
N
25
N
25
N
25
NNE
15
ENE
15
ESE
15
E
10
E
10
ENE
10
ENE
10
ENE
15
ENE
10
NE
10
SE
15
SE
20
E
15
ENE
20
NE
20
NNE
20
NE
15
NNE
10
E
15
SE
10
ESE
Wind State
off
off
off
off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross
cross-off
cross-off
cross-off
off
off
off
cross-off
cross-on
cross-off
High Tide
4:55AM1.54m
6:31PM1.48m
5:41AM1.56m
6:55PM1.48m
6:26AM1.55m
7:18PM1.48m
Low Tide
11:25PM0.88m
11:48AM0.17m
00:00AM0.78m
12:23PM0.24m
00:35AM0.68m
12:57PM0.34m
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
part cloud
part cloud
rain showers
rain showers
cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
5:00
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:30
6:30
 mm
2
2
1
1
1
2
5
3
4
2
1
1
1
1
Temp °C
25
25
24
26
28
29
28
26
26
25
25
26
28
29
28
25
25
24
24
25
27
29
27
26
Feels °C
25
25
23
26
29
31
30
28
29
27
27
28
29
30
29
25
26
24
25
26
27
30
27
28
  • 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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