Osaki Surf Break

Lat Long: 35.29° N 139.56° E

Osaki Surf Forecast and Surf Report

Issued: 8 am 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki sea temperature is
27.6° C
1.0° 

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


Osaki surf forecast from 6 Aug 2026:

  • Best quality surf: Friday 7 Aug, 3AM (local time) - 6ft (1.8m), 13s period, S swell with glassy winds.
  • Most powerful swell: Thursday 6 Aug, 9PM (local time) - 6ft (1.9m), 14s period, S swell with 1,352 kJ wave energy.
  • Next surfable swell (1★+): Friday 7 Aug, 3AM (local time) - 6ft (1.8m), 13s period with S 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 Friday (Aug 07) at 3AM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 0.8m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Osaki in the next 16 days are 1.9m 14s and forecast to arrive on Thursday (Aug 06) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Wednesday (Aug 12) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 7th Aug)6ft (1.8m) 13s
Best Surf 3AM (Fri 7th Aug)6ft (1.8m) 13s
Most Powerful 9PM (Thu 6th Aug)6ft (1.9m) 14s

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


Short Range Forecast

Mostly dry. Warm (max 29°C on Thu morning, min 25°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

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

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
3
2
0
0
1
0
0
1
0
1
0
0
0
1
1
0
1
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)
1.8
SSE
13
1.8
S
13
1.9
S
14
1.6
S
13
1.5
S
12
1.3
S
11
1.2
S
11
1.1
S
11
0.9
SSW
11
0.7
S
10
0.7
S
11
0.7
S
11
0.6
SSW
11
0.6
SSW
11
0.6
SSW
11
0.6
SSW
11
0.6
SSW
11
0.6
SSW
12
0.6
SSW
11
0.5
SSW
11
0.5
SSW
11
Wave Graph
Metric surfscale
Energy kJ
1025
1053
1294
822
635
408
351
302
209
104
114
127
95
91
90
100
95
106
97
69
66
Wind (km/h)
15
NE
15
SSW
5
SE
10
SSE
20
S
20
S
5
S
20
SSW
15
S
5
ESE
20
S
10
E
25
NE
20
ENE
20
NE
10
N
15
NE
25
NE
10
ENE
20
S
15
NE
Wind State
cross-off
on
cross-on
cross-on
on
cross-on
cross-on
on
on
glassy
on
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
on
cross-off
High Tide
10:48AM1.17m
9:49PM1.41m
12:41PM1.13m
10:30PM1.40m
2:57PM1.19m
11:28PM1.38m
4:09PM1.28m
00:45AM1.38m
4:47PM1.36m
2:03AM1.40m
5:17PM1.41m
3:09AM1.45m
5:43PM1.45m
Low Tide
3:39PM0.90m
5:21AM0.46m
4:23PM1.04m
6:37AM0.41m
5:47PM1.15m
7:52AM0.33m
7:53PM1.19m
8:54AM0.25m
9:16PM1.16m
9:46AM0.18m
10:08PM1.08m
10:31AM0.14m
10:48PM0.99m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
rain showers
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:52
4:54
4:54
4:54
4:56
4:56
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:39
6:38
6:37
6:37
6:36
6:35
 mm
1
2
Temp °C
29
29
27
28
28
27
28
28
26
28
28
26
27
29
25
29
30
26
27
27
25
Feels °C
33
31
31
30
29
30
30
29
28
31
29
28
26
28
24
31
31
25
29
27
26
  • 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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