Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 2 pm 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
29.5°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 3 Sep 2026:

  • Best quality surf: Monday 7 Sep, 9PM (local time) - 5ft (1.6m), 9s period, E swell with offshore winds.
  • Most powerful swell: Monday 7 Sep, 3AM (local time) - 13ft (4.0m), 11s period, E swell with 4,055 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 9PM (local time) - 5ft (1.6m), 9s period with E 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 Monday (Sep 07) at 9PM. The primary swell is predicted to be 1.6m and 9s period with a secondary swell of 0.6m and 9s. Another secondary swell of 0.9m and 6s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Osaki Point in the next 16 days are 4.0m 11s and forecast to arrive on Monday (Sep 07) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Friday (Sep 04) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 7th Sep)5ft (1.6m) 9s
Best Surf 9PM (Mon 7th Sep)5ft (1.6m) 9s
Most Powerful 3AM (Mon 7th Sep)13ft (4.0m) 11s

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


The Lowdown

Alright, Rusty here. Let’s break down what we’ve got on the cards.

Right off the bat, this is a tricky stretch. For the first week or so, the wind is just not playing ball. We’ve got a lot of onshore and cross-onshore breezes, and that’s going to mess up the face of the waves. The swell is there, but it’s not clean. You’ll notice a real gap in quality from Thursday the 3rd right through to the 10th. During that time, the wind is mostly from the NE or NNE at 12 to 19 mph, gusty, with rain and storms about. The swell size fluctuates from around 5 ft to 12 ft, but it’s all blown out. The big 12 ft on Sunday the 6th, for example, might look juicy, but with that 19 mph onshore wind, it’s going to be a washing machine – that’s expert-only territory and even then, not much fun. The combined swell energy is strong, hitting 2090 on that Sunday, but it’s wasted.

You get a tiny window on Wednesday the 9th, but it’s only marginal with some cross-shore wind and a 5 ft to 5 ft SSE swell. Not worth getting excited about.

Now, if you can be patient, we’ve got two clear standouts.

Friday, 11th September is the first real gem. Early morning at Osaki Point (Osaki-Point), the wind goes glassy. Absolutely dead calm. That’s a massive positive. You’ll have a clean, smooth surface. The swell is a modest 4 ft from the SSE, with an 8-second period. It’s not huge, but it’s clean, and the combined energy is moderate at 278. For a Friday morning session, this is your best early bet.

Then, look to Tuesday, 15th September. Another glassy morning at Osaki Point. This time the swell is a touch bigger at 6 ft from the ESE, period of 8 seconds, and combined energy of 474 – that’s moderate energy. Again, flat-calm conditions meaning the wave faces will be clean. This is a solid session.

Later in the period, Thursday the 17th has some interest. The afternoon sees a 3 ft swell from the S, but the wind turns offshore from the WSW at 12 mph. It’s clean. The combined energy is moderate at 308. That’s a fun afternoon for a log.

Important to note: For that glassy Friday the 11th, the water temp is sitting at 85°F, which is a touch warmer than normal for this time of year (anomaly of 4°F). The water feels like bathtub soup.

Overall, the first week is a write-off due to wind. Hang tight for the 11th and the 15th – those are the best on offer. Crowds? Osaki Point can get them sometimes, but with the conditions being so average for the first week, you might find it quieter than usual. The swell direction (SSE to ESE) is also in line with what this break likes, so when the wind is right, it should set up nicely.

Stay patient.

- Rusty

Short Range Forecast

Heavy rain (total 92mm), heaviest during Fri afternoon. Warm (max 29°C on Thu afternoon, min 21°C on Fri night). Winds increasing (light winds from the E on Thu afternoon, fresh winds from the NE by Fri afternoon).

Days 5-7 Weather Summary

Heavy rain (total 29mm), heaviest during Tue afternoon. Warm (max 29°C on Mon afternoon, min 24°C on Sun night). Winds decreasing (fresh winds from the ENE on Sun night, calm by Mon night).

Thu
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
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
0
0
0
0
0
0
0
0
0
1
0
0
0
1
2
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SSE
10
1.6
S
10
1.7
S
10
1.6
S
10
1.3
S
10
1.6
ENE
9
1.6
ENE
7
2.1
E
7
2.5
E
8
3.5
E
10
3.5
E
11
2.5
E
11
1.8
E
9
1.4
ESE
9
1.8
ESE
10
1.6
ESE
10
1.6
ESE
10
1.4
SE
9
1.6
SE
10
2.4
SSE
10
Wave Graph
Metric surfscale
Energy kJ
363
520
535
484
313
363
259
401
887
2058
3028
1379
577
311
579
492
500
314
441
1138
Wind (km/h)
5
E
10
NE
25
NE
30
NNE
20
NE
25
NNE
30
NE
25
NE
30
ENE
30
ENE
30
ENE
20
NNE
20
NE
5
NNW
20
NE
15
NE
20
NNE
15
N
10
SE
20
NNE
Wind State
cross-on
on
on
cross-on
on
cross-on
on
on
on
on
on
cross-on
cross-on
cross
on
on
cross-on
cross
cross
cross-on
High Tide
9:03PM1.65m
11:17AM1.34m
9:44PM1.55m
1:51PM1.33m
11:02PM1.45m
3:35PM1.46m
1:18AM1.44m
4:20PM1.58m
2:55AM1.54m
4:53PM1.68m
3:59AM1.68m
5:22PM1.76m
Low Tide
3:07PM0.93m
4:14AM0.42m
3:51PM1.11m
5:38AM0.48m
5:36PM1.26m
7:29AM0.46m
8:35PM1.23m
8:56AM0.35m
9:46PM1.08m
9:56AM0.24m
10:29PM0.91m
10:42AM0.17m
11:05PM0.73m
thunderstorm
cloud
thunderstorm
heavy rain
rain showers
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part cloud
rain showers
light rain
cloud
mod rain
light rain
part cloud
part cloud
part cloud
mod rain
heavy rain
part cloud
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:39
5:39
5:39
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:27
6:24
6:23
6:22
6:21
6:20
6:19
 mm
2
19
56
11
2
2
6
1
8
14
1
Temp °C
29
26
26
22
23
27
28
25
24
26
25
27
29
26
28
27
26
28
30
26
Feels °C
33
28
27
20
23
26
26
24
22
24
23
27
30
29
29
29
27
32
33
27
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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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