Osaki surf break

Osaki surfForecast / Kanagawa / Japan

information circle12 Day Weather and Surf, issued 8 am Wednesday 09 Jul 2025 JST
Forecast update in hr  min  s Forecast update imminent
Osaki surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Osaki sea temperature is
26.9° C
(Which is 2.1°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Osaki this week:

The surf forecast for Osaki over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 13) at 12PM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.1m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Osaki in the next 12 days are 1.0m 10s and forecast to arrive on Wednesday (Jul 16) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Friday (Jul 11) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sun 13th Jul)2ft (0.6m) 9s
Best Surf12PM (Sun 13th Jul)2ft (0.6m) 9s
Most Powerful 9AM (Wed 16th Jul)3.5ft (1.0m) 10s

Table - best surf conditions forecast for Osaki over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.2
ESE
0.6
S
0.2
ESE
0.3
SSE
0.5
S
0.4
SSE
0.3
SSE
0.2
ESE
0.4
SE
0.4
SE
0.5
SE
0.5
SE
0.6
SSE
0.7
SE
0.6
SE
0.5
SE
0.3
SE
0.5
SE
0.8
SE
0.7
SE
0.7
SE
1
SE
0.8
SSE
1.8
S
3
S
2.2
S
0.9
SSE
1
S
1
S
0.8
SSE
0.6
S
0.5
S
0.6
SSE
0.6
SE
0.7
SSE
0.7
SE
Period(s) (?)11411566788898910981091010101098988888878888
Wave
Graph
(?)Metric surfscale
Energy (?)172630113219181424254236551126754384912811413221012645813371152205141139955957585860118
Wind
(km/h)
20
S
30
S
20
SSW
5
S
20
S
30
NE
30
NE
25
NE
25
NE
25
NE
15
ENE
15
NE
15
NE
15
S
5
ESE
10
NE
10
SE
20
NNE
50
N
15
NNW
15
SW
10
SSW
25
S
30
SSW
25
SSW
25
S
15
S
10
S
15
S
10
SE
10
ENE
10
SSE
15
E
15
ESE
5
E
25
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononononcross-
off
offoffoffoffcross-
off
cross-
off
offoncrosscross-
off
cross-
on
offoffcross-
off
ononcross-
on
ononononcross-
on
oncrosscross-
off
cross-
on
cross-
off
crosscross-
off
off
High Tide
/ height (m)
5:40PM
1.38
3:15AM
1.46
6:18PM
1.42
4:03AM
1.49
6:52PM
1.44
4:51AM
1.50
7:23PM
1.45
5:38AM
1.50
7:53PM
1.44
6:25AM
1.47
8:22PM
1.42
7:15AM
1.42
8:50PM
1.40
8:08AM
1.34
9:19PM
1.39
9:08AM
1.25
9:49PM
1.38
10:21AM
1.17
10:22PM
1.37
11:57AM
1.11
11:01PM
1.37
1:53PM
1.13
11:47PM
1.37
Low Tide
/ height (m)
10:06AM
0.06
10:16PM
1.10
10:49AM
0.00
11:03PM
1.07
11:31AM
-0.02
11:44PM
1.03
12:10PM
-0.01
12:25AM
0.97
12:49PM
0.05
1:05AM
0.91
1:26PM
0.14
1:47AM
0.83
2:03PM
0.26
2:33AM
0.76
2:40PM
0.41
3:23AM
0.69
3:18PM
0.57
4:20AM
0.62
3:59PM
0.73
5:25AM
0.54
4:46PM
0.88
6:34AM
0.45
5:50PM
1.02
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Sunrise4:33--4:33--4:35--4:35--4:35--4:37--4:37--4:37--4:39--4:39--4:39--4:41--
Sunset-6:59--6:59--6:58--6:58--6:58--6:57--6:57--6:55--6:55--6:54--6:54--6:53-
clearclearclearclearthunderstorm thunderstorm part cloudpart cloudclearclearclearclearclearclearclearpart cloudpart cloudheavy rainheavy rainrain showersclearclearrain showersthunderstorm thunderstorm clearrain showersclearclearclearclearclearthunderstorm mod rainlight rainheavy rain
Rain (mm)
----34-----------19261--2214-1-----810437
Temp. °C282827282824222422252824272825282827222527282827282827282826282826272424
Feels °C (?)292828303025192219232824292927323027162528302828292829313029313027292724

Short Range Forecast: Light rain (total 7mm), mostly falling on Thu night. Warm (max 28°C on Wed morning, min 21°C on Thu night). Winds increasing (light winds from the S on Thu morning, fresh winds from the NE by Fri morning).

Days 3-6 Weather Summary Moderate rain (total 19mm), heaviest on Mon night. Warm (max 28°C on Sat afternoon, min 23°C on Sat morning). Winds increasing (calm on Mon morning, fresh winds from the NNE by Mon night).

Days 6-9 Weather Summary Heavy rain (total 55mm), heaviest during Tue morning. Warm (max 28°C on Wed morning, min 22°C on Tue morning). Winds decreasing (strong winds from the N on Tue morning, calm by Tue night).

Long Range Forecast: Heavy rain (total 77mm), heaviest during Mon morning. Warm (max 28°C on Fri morning, min 23°C on Sun night). Wind will be generally light.

  • Map Icons:
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  • 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 12 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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