Osaki surf break

Osaki surfForecast / Kanagawa / Japan

information circle12 Day Weather and Surf, issued 8 am Monday 05 Jan 2026 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
16.2° C
(Which is 1.7°C colder than average 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 Thursday (Jan 08) at 12PM. The primary swell is predicted to be 1.6m and 6s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.1m and 13s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Osaki in the next 12 days are 2.2m 7s and forecast to arrive on Sunday (Jan 11) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Jan 06) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Thu 8th Jan)5ft (1.6m) 6s
Best Surf12PM (Thu 8th Jan)5ft (1.6m) 6s
Most Powerful12PM (Sun 11th Jan)7ft (2.2m) 7s

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 13°C on Mon afternoon, min 5°C on Wed morning). Winds decreasing (strong winds from the WSW on Mon afternoon, calm by Wed afternoon).

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Sat afternoon. Very mild (max 13°C on Sat afternoon, min 4°C on Thu night). Winds increasing (calm on Fri morning, gales from the WSW by Sat night).

Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
Swell
Height Map
Wave Height (m) & direction (?)
1.3
SW
1.2
SW
0.7
SW
0.4
SW
0.2
SSW
0.1
S
0.1
S
0.1
S
0.9
SW
1.1
SW
0.6
SW
0.2
SSW
0.1
SW
0.1
E
0.1
SW
0.8
SW
1.7
SSW
2.2
SW
2.1
SW
0.8
SSW
0.6
SSW
Period(s) (?)667888666665810756771211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)120995417711152852932222517041239817479
Wind
(km/h)
15
WSW
40
WSW
30
NNE
25
NNE
5
SSE
10
E
20
NNE
5
SE
30
WSW
15
WNW
30
NNE
25
N
0
NE
20
S
15
WSW
40
SW
40
SW
60
WSW
40
NW
20
NNW
5
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
offoffglasscross-
off
offglasscross-
on
crossoffoffglassoncross-
on
cross-
on
oncross-
on
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
5:02PM
1.45
7:32AM
1.39
5:49PM
1.43
8:02AM
1.38
6:37PM
1.39
8:32AM
1.36
7:27PM
1.33
9:01AM
1.34
8:22PM
1.25
9:31AM
1.32
9:25PM
1.15
10:03AM
1.31
10:45PM
1.07
Low Tide
/ height (m)
11:55AM
0.97
12:21AM
-0.06
12:36PM
0.91
12:59AM
0.00
1:17PM
0.84
1:37AM
0.10
2:01PM
0.77
2:14AM
0.23
2:48PM
0.69
2:52AM
0.37
3:41PM
0.62
3:31AM
0.53
4:40PM
0.54
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Sunrise6:50--6:50--6:50--6:50--6:50--6:50--6:50--
Sunset-4:42--4:43--4:44--4:45--4:45--4:46--4:47-
part cloud
clear
part cloud
clear
clear
part cloud
cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
rain showers
rain showers
part cloud
clear
part cloud
Rain (mm)
----------------24---
Temp. °C1013107886810995799121312776
Feels °C (?)33325414331-4235144-402
  • 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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