Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 8 pm 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
29.4°C
2.0° 

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 5 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 3PM (local time) - 4.5ft (1.4m), 8s period, SSE swell with glassy winds.
  • Most powerful swell: Sunday 6 Sep, 9PM (local time) - 13ft (4.0m), 10s period, E swell with 3,173 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 3PM (local time) - 4.5ft (1.4m), 8s period with SSE 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 Thursday (Sep 10) at 3PM. The primary swell is predicted to be 1.4m and 8s period with a secondary swell of 0.9m and 5s. 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 4.0m 10s and forecast to arrive on Sunday (Sep 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 0.6m 5s period and expected on Thursday (Sep 10) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Thu 10th Sep)4.5ft (1.4m) 8s
Best Surf 3PM (Thu 10th Sep)4.5ft (1.4m) 8s
Most Powerful 9PM (Sun 6th Sep)13ft (4.0m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s get real about what’s on the menu for the next couple of weeks.

The picture is pretty grim for a long stretch. We’ve got a solid week of onshore winds and messy conditions ahead, with the only real light at the end of the tunnel being a couple of sessions around Friday the 11th and maybe a small window late in the second week. The wait is a grind, but there’s one standout that might just be worth the patience.

Osaki Point (beach and reef) is the only spot with any real pulse over the whole period. The water is sitting at a warm 85°, which is a touch warmer than normal for this time of year, so you’ll feel that difference.

The first week is a write-off. From Saturday the 5th right through to Thursday the 10th, it’s a mess of onshore winds, rain, and lumpy, choppy ocean. Sunday the 6th sees a big jump in size with an 12ft swell from the E, but it’s coming with a brutal 22 mph cross-onshore wind and heavy rain. The combined energy is massive (2570), but it’s a total no-go for a paddle. That setup actually looks more interesting for kite surfing than paddle surfing. The whole week sits with close to zero surf quality, so you’re better off doing something else.

Then we get the one true standout. On Friday the 11th, the whole picture flips. The morning sees a 6ft east swell with glassy conditions and only a 3 mph breeze. The energy is a solid 640. But the afternoon is the real deal: a 7ft easterly swell with a clean 9 mph offshore wind from the SW, and the combined energy jumps to 1143. This is excellent surf, but with that size, it’s only for experienced surfers. The swell period is 8 seconds, so it’s a short-period wind swell, but the offshore wind will iron it out into clean, lined-up waves. The break is consistent and exposed to the SSE swell, which is a good match for the direction. Crowds are possible here, so get in early if you can.

After that, the weekend of the 12th drops off fast. Saturday morning is back to small 3ft with poor conditions, and the rest of the week is a long, slow fade into tiny, weak surf. By Monday the 14th, we’re looking at 3ft swells with onshore winds, and the energy is weak. The second week is mostly a bust. There’s a tiny glimmer on Wednesday the 16th afternoon with a 3ft swell from the ESE, a 12-second period, and a light cross-offshore wind, which could give a clean little wave. The combined energy is low (211), but it’s surfable. The very end of the forecast, Sunday the 20th, has tiny 1.0ft glassy leftovers, but that’s barely a ripple.

Bottom line: the only real window to get excited about is Friday the 11th, especially the afternoon. If you can wait, it’ll be worth it. The rest is a long, quiet stretch.

Rusty.

Short Range Forecast

Heavy rain (total 133mm), heaviest during Sun morning. Warm (max 29°C on Mon afternoon, min 23°C on Sun morning). Winds decreasing (strong winds from the ENE on Sun afternoon, light winds from the NNE by Tue afternoon).

Days 5-7 Weather Summary

Heavy rain (total 69mm), heaviest during Wed afternoon. Warm (max 27°C on Thu afternoon, min 23°C on Wed night). Wind will be generally light.

Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
1
0
2
1
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
E
8
3.5
E
9
3.5
E
10
3
E
10
1.7
SE
9
1.3
SE
9
1.5
ESE
9
1
S
10
1.1
S
10
1.6
S
9
1.9
SSE
8
1.9
SSE
8
1.7
SSE
8
1.6
SSE
8
1.4
SSE
8
1.2
SSE
8
1.1
SE
9
1.1
SSE
8
0.8
SSE
8
Wave Graph
Metric surfscale
Energy kJ
399
1920
2633
2039
502
281
346
200
220
441
524
500
390
315
224
154
178
153
81
Wind (km/h)
25
NE
30
NE
40
ENE
35
NE
20
NE
20
ENE
20
NE
20
NE
15
NNE
20
NE
20
NE
15
N
10
NNE
10
NNE
5
NE
10
NNE
5
ENE
10
E
10
NNE
Wind State
cross-on
on
on
cross-on
cross-on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
cross-on
on
cross-on
cross-on
High Tide
11:02PM1.45m
3:35PM1.46m
1:18AM1.44m
4:20PM1.58m
2:55AM1.54m
4:53PM1.68m
3:59AM1.68m
5:22PM1.76m
4:50AM1.80m
5:48PM1.81m
5:34AM1.87m
6:14PM1.84m
Low Tide
7:29AM0.46m
8:35PM1.23m
8:56AM0.35m
9:46PM1.08m
9:56AM0.24m
10:29PM0.91m
10:42AM0.17m
11:05PM0.73m
11:21AM0.16m
11:39PM0.57m
11:56AM0.20m
00:12AM0.43m
heavy rain
heavy rain
heavy rain
heavy rain
part cloud
part cloud
part cloud
light rain
mod rain
heavy rain
heavy rain
heavy rain
cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:39
5:41
5:41
5:41
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:23
6:22
6:21
6:20
6:19
6:16
6:15
 mm
27
51
34
12
2
7
24
24
21
Temp °C
26
23
23
24
28
29
26
27
25
26
25
24
24
26
27
25
27
27
26
Feels °C
25
22
20
21
28
30
27
28
28
28
26
26
25
28
30
27
31
31
29
  • 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 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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