Osaki surf break

Osaki surfForecast / Kanagawa / Japan

information circle12 Day Weather and Surf, issued 8 am Monday 08 Dec 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
19.0° C
(Which is slightly cooler than normal)


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 Monday (Dec 15) at 12AM. The primary swell is predicted to be 3.0m and 10s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Osaki in the next 12 days are 3.0m 10s and forecast to arrive on Monday (Dec 15) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (Dec 12) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 15th Dec)10ft (3.0m) 10s
Best Surf12AM (Mon 15th Dec)10ft (3.0m) 10s
Most Powerful12AM (Mon 15th Dec)10ft (3.0m) 10s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 17°C on Mon afternoon, min 9°C on Tue night). Winds decreasing (fresh winds from the WSW on Mon afternoon, calm by Wed night).

Days 3-6 Weather Summary Some drizzle, heaviest during Sat night. Very mild (max 15°C on Thu afternoon, min 4°C on Sat night). Winds increasing (calm on Thu morning, strong winds from the N by Fri morning).

Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SW
1.3
SW
0.4
SSW
0.1
SE
0.1
SE
0.1
SE
0.2
ESE
0.2
ESE
0.2
ESE
0.6
SW
0.6
SW
1.3
SW
0.4
SW
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.8
SSE
1.5
SSE
3
SSW
Period(s) (?)4669910101111556610111111117910
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7103123341112121419128832322513361881
Wind
(km/h)
10
SSW
35
WSW
30
NNE
25
NNE
15
ENE
5
NE
10
N
5
SE
5
NNW
0
SE
30
SW
25
W
45
N
40
N
30
N
20
N
5
WNW
10
NE
30
N
35
N
20
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
offoffcross-
off
glassoffcrossglassglasscross-
on
cross-
on
offoffoffoffglasscross-
off
offoffoff
High Tide
/ height (m)
5:45PM
1.48
8:38AM
1.40
6:29PM
1.42
9:20AM
1.37
7:18PM
1.35
10:00AM
1.34
8:18PM
1.26
10:41AM
1.32
9:33PM
1.17
11:22AM
1.31
11:07PM
1.11
12:01PM
1.31
12:49AM
1.10
Low Tide
/ height (m)
12:43PM
1.05
1:13AM
0.00
1:29PM
1.04
1:55AM
0.09
2:20PM
1.01
2:40AM
0.20
3:20PM
0.95
3:27AM
0.33
4:28PM
0.87
4:19AM
0.47
5:39PM
0.76
5:16AM
0.61
6:45PM
0.62
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Sunrise6:37--6:37--6:37--6:39--6:39--6:41--6:41--
Sunset-4:29--4:29--4:29--4:29--4:29--4:29--4:30-
clear
cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
mod rain
light rain
rain showers
Rain (mm)
-----------------110110
Temp. °C1417131011101213131215149857784511
Feels °C (?)89626791111775-1-3-5146-4-33
  • 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 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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