Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki Surf Forecast and Surf Report

Issued: 2 am 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.0° C
0.6° 

Osaki surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Osaki surf forecast from 29 Jul 2026:

  • Best quality surf: Wednesday 5 Aug, 9AM (local time) - 10ft (3.0m), 17s period, SSE swell with offshore winds.
  • Most powerful swell: Thursday 6 Aug, 3AM (local time) - 11ft (3.5m), 17s period, SSE swell with 6,534 kJ wave energy.
  • Next surfable swell (1★+): Sunday 2 Aug, 12PM (local time) - 1.5ft (0.5m), 15s period with SE swell.

Best Forecast Surf Conditions for Osaki this week:

The surf forecast for Osaki over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 02) at 12PM. The primary swell is predicted to be 0.5m and 15s period with a secondary swell of 0.1m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Osaki in the next 16 days are 3.5m 17s and forecast to arrive on Thursday (Aug 06) at 3AM. Winds are predicted to be offshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sun 2nd Aug)1.5ft (0.5m) 15s
Best Surf 9AM (Wed 5th Aug)10ft (3.0m) 17s
Most Powerful 3AM (Thu 6th Aug)11ft (3.5m) 17s

Table - best surf conditions forecast for Osaki over the next 16 days.


Short Range Forecast

Light rain (total 2mm), mostly falling on Thu afternoon. Warm (max 30°C on Fri morning, min 27°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 30°C on Sun morning, min 24°C on Sun night). Winds increasing (light winds from the SE on Sun morning, fresh winds from the NE by Tue night).

Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
2
2
1
2
3
4
3
5
5
4
Swell
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
7
0.3
SSW
7
0.5
S
7
0.5
S
6
0.4
SSW
6
0.4
SSW
6
0.3
SSW
7
0.4
SSW
6
0.3
SE
17
0.4
SE
16
0.5
SE
15
0.7
SE
17
0.9
SE
16
1
SE
17
1.2
SE
17
1.6
SE
16
1.8
SE
17
2.3
SE
17
3
SSE
17
3
SSE
17
3.5
SSE
17
Wave Graph
Metric surfscale
Energy kJ
18
10
23
22
14
13
9
12
46
64
109
281
386
573
802
1261
1972
2864
4342
5259
6043
Wind (km/h)
5
ENE
15
SSW
5
NE
10
NE
15
S
5
ESE
5
ENE
15
SSW
5
SE
5
ENE
15
S
25
NE
25
NE
30
NE
25
NNE
30
NNE
25
NE
30
NE
25
NNE
20
NE
15
NE
Wind State
cross-off
on
glassy
off
cross-on
cross
glassy
on
glassy
cross-off
cross-on
off
off
off
off
off
off
off
off
off
cross-off
High Tide
6:41PM1.46m
5:16AM1.53m
7:07PM1.47m
6:03AM1.53m
7:32PM1.46m
6:50AM1.50m
7:56PM1.45m
7:38AM1.44m
8:21PM1.45m
8:29AM1.35m
8:48PM1.44m
9:29AM1.26m
9:16PM1.43m
Low Tide
11:39AM0.07m
11:52PM0.91m
12:16PM0.11m
00:29AM0.82m
12:51PM0.19m
1:07AM0.73m
1:26PM0.30m
1:46AM0.65m
1:59PM0.44m
2:29AM0.59m
2:32PM0.59m
3:17AM0.54m
3:04PM0.75m
part cloud
rain showers
thunderstorm
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:48
4:48
4:50
4:50
4:52
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:45
6:45
6:45
6:44
6:43
6:42
 mm
1
1
2
Temp °C
29
29
28
30
30
28
29
30
29
30
30
26
26
28
25
28
29
26
29
31
27
Feels °C
31
31
33
33
32
31
32
32
33
33
32
26
25
27
23
27
28
26
30
32
29
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Osaki Surf forecast

The above surf forecast table for Osaki provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Osaki can be found by selecting the local surf guide option on the grey menu. Our Osaki surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Osaki) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Osaki may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Osaki is 2 km (1 miles) from the city of Zushi. If you plan a holiday in Kanagawa, look for hotels and other accommodation in Zushi. Zushi has rooms for a wide range of budgets as well as car hire and transport links.

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