Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 2 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
28.6° C
0.8° 

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


Osaki Point surf forecast from 12 Aug 2026:

  • Best quality surf: Friday 14 Aug, 6PM (local time) - 2.5ft (0.8m), 9s period, SSW swell with glassy winds.
  • Most powerful swell: Sunday 16 Aug, 12PM (local time) - 4.5ft (1.3m), 10s period, ESE swell with 335 kJ wave energy.
  • Next surfable swell (1★+): Friday 14 Aug, 12AM (local time) - 2.5ft (0.8m), 9s period with SSW swell.

Best Forecast Surf Conditions for Osaki Point this week:

The surf forecast for Osaki Point over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 14) at 12AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.5m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Osaki Point in the next 16 days are 1.3m 10s and forecast to arrive on Sunday (Aug 16) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Wednesday (Aug 19) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 14th Aug)2.5ft (0.8m) 9s
Best Surf 6PM (Fri 14th Aug)2.5ft (0.8m) 9s
Most Powerful12PM (Sun 16th Aug)4.5ft (1.3m) 10s

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


The Lowdown

Alright, Rusty here. Let's get into it.

First up, we're looking at a pretty quiet stretch for the next little while. The opening days are a write-off, with nothing to get excited about. The water temp is sitting at 84°, which is pretty much what you'd expect for this time of year, so no surprises there.

The first real chance to wet a line comes on the morning of Thursday, August 20th. The swell is tiny, only 2ft from the SE, but the wind is glassy. It's surfable, but you'll be working for every little bump. The combined energy is a weak 93, so you know it's small. It's a very ordinary session, but if you're desperate, it's the only game in town.

Friday, August 21st, is more of the same with a tiny 1ft SE swell, but the wind goes clean offshore from the SW. Again, it's small, but those clean conditions are a nice bonus. The energy is a paltry 90.

The first real standout, and the best on offer across the whole 16 days, actually lands on Sunday, August 23rd. The morning session at Osaki Point is looking like the pick of the bunch. We've got a 3ft swell from the SSW, and the wind is glassy. The combined energy is a moderate 204, so there's a bit more push behind it. The period is a short 7 seconds, so it won't be the most powerful, but with glassy conditions, it'll be clean and fun. This is your window.

Then, the far end of the forecast gets interesting. On Thursday, August 27th, the swell picks up. The morning shows 4ft from the SE with a moderate energy of 465, and the wind is clean cross-off from the SSW. The afternoon looks even better with 5ft from the SE and a solid energy of 645. The wind stays clean. This is expert territory at 5ft, and the period is 10 seconds, so it's a solid groundswell. It's a long way out, so keep an eye on it, but it's the most promising swell of the whole outlook.

That's it from me. The surf is thin on the ground for a while, but if you're willing to wait, there's a couple of decent windows.

Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Thu morning. Warm (max 28°C on Wed afternoon, min 25°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 21mm), heaviest during Sun night. Warm (max 28°C on Sat afternoon, min 26°C on Sat night). Wind will be generally light.

Wed
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
0
1
0
1
1
0
0
0
0
0
1
0
1
2
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSW
10
1
SSW
10
0.9
SSW
9
0.8
SSW
9
0.8
SSW
9
0.8
SSW
9
0.8
SSW
9
0.7
E
10
0.8
SSW
10
0.8
E
10
0.8
SSW
9
1.3
E
10
1.3
ESE
10
1.1
ESE
10
1
E
10
1
E
10
1
E
10
0.8
E
10
0.7
E
10
0.6
E
9
Wave Graph
Metric surfscale
Energy kJ
157
201
149
110
108
99
106
98
125
123
111
326
335
240
188
190
194
118
89
59
Wind (km/h)
5
SSE
5
NNE
10
ENE
10
ESE
5
NE
5
E
10
SE
5
N
10
E
15
ESE
10
E
15
E
10
SE
10
ESE
15
SE
15
SE
0
NNE
10
E
10
SSE
0
E
Wind State
cross
cross-on
on
cross-on
glassy
on
cross
cross
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross
glassy
cross-on
cross
glassy
High Tide
6:24PM1.81m
5:39AM1.88m
6:55PM1.83m
6:25AM1.90m
7:23PM1.83m
7:08AM1.87m
7:50PM1.81m
7:50AM1.78m
8:15PM1.77m
8:31AM1.66m
8:39PM1.71m
9:15AM1.51m
9:02PM1.65m
Low Tide
11:59PM0.79m
12:20PM0.01m
00:36AM0.66m
12:57PM0.08m
1:13AM0.56m
1:30PM0.22m
1:49AM0.50m
2:01PM0.39m
2:25AM0.47m
2:30PM0.57m
3:02AM0.48m
2:55PM0.76m
cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
part cloud
rain showers
rain showers
rain showers
clear
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:22
5:24
5:24
5:24
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:51
6:50
6:49
6:47
6:45
 mm
3
4
3
2
1
1
1
6
1
10
3
Temp °C
28
26
27
27
25
28
28
26
28
28
26
28
28
26
27
28
26
28
28
26
Feels °C
30
30
29
30
28
31
31
30
30
30
29
30
30
30
30
30
31
31
31
31
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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 Point Surf forecast

The above surf forecast table for Osaki Point provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Osaki Point can be found by selecting the local surf guide option on the grey menu. Our Osaki Point 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 Point) 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 Point 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 Point is 14 km (9 miles) from Muroto. If you plan a holiday in Shikoku, look for hotels and other accommodation in Muroto. Muroto has rooms for a wide range of budgets as well as car hire and transport links.

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