Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 2 pm 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
27.7°C
0.7° 

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 14 Sep 2026:

  • Best quality surf: Monday 21 Sep, 9AM (local time) - 18ft (5.5m), 15s period, SE swell with onshore winds.
  • Most powerful swell: Monday 21 Sep, 9AM (local time) - 18ft (5.5m), 15s period, SE swell with 12,898 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 15 Sep, 12AM (local time) - 4ft (1.2m), 9s period with SE 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 Tuesday (Sep 15) at 12AM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.5m and 12s. 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 5.5m 15s and forecast to arrive on Monday (Sep 21) at 9AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 15th Sep)4ft (1.2m) 9s
Best Surf 9AM (Mon 21st Sep)18ft (5.5m) 15s
Most Powerful 9AM (Mon 21st Sep)18ft (5.5m) 15s

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


The Lowdown

G’day, it’s Rusty. Let’s have a look at what’s shaping up for Osaki Point over the next couple of weeks.

To be straight with you, this is a pretty patchy outlook. The first few days have some small but clean windows, then we get a massive pulse of energy that’s just too raw and windy to really enjoy, and then it fades into a long, quiet stretch. There’s a definite standout if you’re willing to sit through the rough stuff, but overall you’ll need to pick your moments.

The start of the period, Monday the 14th, is actually a real treat. The morning session offers up clean 4ft swell from the ESE, with absolutely glassy conditions and the combined swell energy sitting at a moderate 244. The water temp is 82° and that’s about average for this time of year – feels good. This is your best bet early on. The afternoon stays surfable but gets a cross-off breeze from the south, so still clean, just not as perfect.

Tuesday the 15th sees the swell bump up to 5ft in the morning with a bit of cross-on wind, so it’s a little messy, but the Tuesday afternoon session turns glassy again with 5ft from the ESE and moderate energy (371). Another solid window if you can get out then.

Wednesday the 16th and Thursday the 17th are pretty much write-offs – small, onshore, poor shape. Then Friday the 18th shows a jump in size to 7ft from the east, but it’s straight onshore and the combined energy climbs to 745 (moderate), so it’s a messy, bumpy day. Not recommended for a paddle.

Now, here’s where it gets interesting – and a bit wild. Saturday the 19th of September, early morning, the swell jumps to a massive 13ft from the ESE with a very long period of 16 seconds. The combined energy screams at 7540 – that’s very strong. This is a serious groundswell. The caveat is that it’s coming with onshore wind from the ENE, so the surface will be bumpy, but the power is undeniable. This is one for experienced surfers only – 13ft on a beach and reef setup with that period will be intense. The afternoon gets worse with stronger wind.

Sunday the 20th pushes even bigger – 16ft from the ESE, 15-second period, combined energy at 11093. That’s extreme. But it’s also got a strong cross-onshore wind from the NE at 15-19 mph, making it lumpy and messy. This is more of a heavy water spectacle than a clean surfing day. Honestly, this setup looks more interesting for kite surfing than paddle surfing.

From Monday the 21st through to the end of the month, the trend is downhill. The swell drops quickly, wind stays strong and onshore for most of it, and by Wednesday the 23rd the energy falls to a weak 31. There’s a long gap from around the 23rd all the way through to the end of the forecast period with nothing worth paddling out for. Monday the 28th morning does show a tiny 2ft with glassy conditions and 126 energy, but it’s barely surfable.

So, the standout is absolutely Saturday the 19th morning if you’re an expert and don’t mind some wind on a massive, long-period groundswell. The real gem for clean, fun waves is Monday the 14th morning – that glassy 4ft from the ESE will be a joy. Get in early in the window or sit it out.

Rusty.

Short Range Forecast

Heavy rain (total 27mm), heaviest during Wed afternoon. Warm (max 28°C on Mon afternoon, min 22°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Sat morning, min 23°C on Thu night). Wind will be generally light.

Mon
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
2
1
0
0
0
0
0
0
2
2
3
3
2
3
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SE
8
1.2
SE
9
1.4
ESE
9
1.3
ESE
9
1.2
ESE
9
0.9
ESE
9
0.9
ESE
9
0.8
ESE
9
0.8
ESE
9
1.2
E
9
1.8
E
8
2.4
E
8
2.4
E
9
1.7
ESE
15
3
ESE
14
3.5
ESE
14
3.5
ESE
13
4
SE
14
4.5
SE
14
4
SE
14
Wave Graph
Metric surfscale
Energy kJ
158
247
327
255
211
138
121
99
88
214
367
761
958
1350
4245
4220
3688
7140
8282
6397
Wind (km/h)
15
S
5
NNE
5
NNE
5
WSW
10
NNE
15
NE
15
NE
15
NNE
20
NE
25
ENE
15
ENE
10
ENE
10
E
5
NE
15
NE
20
ENE
20
NE
25
NE
25
NE
30
NE
Wind State
cross-off
glassy
glassy
glassy
cross-on
on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
High Tide
7:22PM1.79m
8:09AM1.67m
7:44PM1.73m
8:48AM1.54m
8:04PM1.66m
9:33AM1.40m
8:25PM1.57m
10:38AM1.27m
8:46PM1.48m
2:00PM1.23m
9:11PM1.37m
3:53PM1.33m
11:46PM1.27m
Low Tide
1:47AM0.29m
1:50PM0.72m
2:19AM0.34m
2:13PM0.86m
2:54AM0.42m
2:34PM1.00m
3:37AM0.53m
2:52PM1.12m
4:40AM0.64m
2:36PM1.23m
6:34AM0.69m
8:55PM1.25m
thunderstorm
rain showers
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:45
5:46
5:47
5:47
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:09
6:08
6:07
6:06
6:05
6:04
 mm
5
2
2
2
4
12
Temp °C
28
24
27
27
25
25
24
23
26
27
24
26
25
24
28
27
25
27
27
26
Feels °C
30
28
32
31
29
27
26
23
24
26
24
26
26
27
28
27
24
26
26
25
  • 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 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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