Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 8 pm 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
29.5° C
1.8° 

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 5 Aug 2026:

  • Best quality surf: Tuesday 11 Aug, 3PM (local time) - 7ft (2.1m), 12s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 6 Aug, 3PM (local time) - 18ft (5.5m), 15s period, SE swell with 12,412 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 3PM (local time) - 7ft (2.1m), 12s 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 Tuesday (Aug 11) at 3PM. The primary swell is predicted to be 2.1m and 12s period with a secondary swell of 0.8m and 11s. The wind is predicted to be cross-offshore 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 Thursday (Aug 06) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Aug 12) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Tue 11th Aug)7ft (2.1m) 12s
Best Surf 3PM (Tue 11th Aug)7ft (2.1m) 12s
Most Powerful 3PM (Thu 6th Aug)18ft (5.5m) 15s

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


The Lowdown

Alright folks, let’s get real here. The next couple of weeks are looking like a classic “wait for it” scenario. We’ve got a ton of wind and swell direction issues lining up to ruin a lot of days. But there is a golden window if you’re patient, and it’s a good one.

Osaki Point (Osaki-Point) is our only spot worth talking about. The first week is a complete washout for surfers. From the 6th to the 10th, we’ve got serious, building swell coming from the SE and SSE, pushing 14 to 18 feet. That’s way too much juice, and it’s coming with strong onshore winds. The energy readings are insane—numbers like 10035 and 12412, which is raw, deadly power. This isn't surfable; it’s a washing machine. The wind is howling at 19 to 22 mph and it’s just going to be a stormy mess. This is for the kite crowd, not for the surfboard. With that much swell and wind, people with paddles should stay well clear.

The 11th sees the swell start to back down to around 7 feet, but the wind is still cross-onshore in the morning. The afternoon, though, is a sign of things to come. The wind swings to a light cross-off from the S, the swell drops to 7 feet, and the period is a solid 12 seconds. That’s the first glimpse of clean.

Then we hit the standout. Tuesday the 12th into Wednesday the 13th morning. This is the one to circle. Sunday the 12th morning, it’s glassy. Flat-out zero wind, with a 6-foot SSW swell at 11 seconds. The energy is moderate at 794, but with these conditions, it’s going to be clean, lined-up, and proper. The water temp is about average for this time of year, so a bit of a spring suit is all you need. This is the best this entire two weeks has to offer. Osaki is a beach and reef setup, so that long-period SSW groundswell should wrap in nicely. On the 13th morning, we still have about 4 feet, but the wind goes back onshore, so that window is short—mostly the 12th is your day.

After that, it just fades out. From the 14th onward, the swell shrinks down to under 5 feet and the period drops out too. There are moments of calm, like the 18th and 19th, but the swell is just too small and weak to be worth the paddle. It’s a poor run of tiny, gutless waves. You might find a fun little shoulder-high ripple on a longboard, but it’s a far cry from the day on the 12th.

So, the long and the short of it: the first week is a total blowout, and the back half is flat. Your one true standout is the morning of August 12th, with that 6 foot SSW groundswell and glassy conditions. That’s the one to be on.

Rusty

Short Range Forecast

Heavy rain (total 53mm), heaviest during Fri night. Warm (max 30°C on Thu morning, min 27°C on Wed night). Mainly fresh winds.

Days 5-7 Weather Summary

Heavy rain (total 23mm), heaviest during Sat night. Warm (max 29°C on Tue morning, min 26°C on Sat night). Wind will be generally light.

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
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
2
0
3
0
0
1
3
3
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
5
SE
15
5
SE
14
5.5
SE
15
5
SE
14
4.5
SSE
14
4.5
SSE
13
3.5
S
13
3.5
SSW
14
3
SSW
14
3
SSW
14
3.5
SSW
15
3
SSW
15
3
SSW
14
3
SSW
13
3
SSW
13
2.5
SSW
13
2.2
SSW
12
2.1
SSW
12
1.9
SSW
11
Wave Graph
Metric surfscale
Energy kJ
10484
10035
12412
10375
8069
6608
4102
4369
4186
4275
5119
4021
3201
2792
2614
2039
1407
1226
950
Wind (km/h)
20
NE
30
NE
35
E
30
ENE
30
E
30
E
25
E
30
E
25
E
20
E
20
ENE
20
E
20
E
20
E
20
E
10
E
10
ESE
15
S
10
NW
Wind State
on
on
on
on
on
on
cross-on
on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-off
cross-off
High Tide
9:53PM1.64m
11:18AM1.35m
10:36PM1.58m
1:19PM1.32m
11:39PM1.53m
3:22PM1.41m
1:12AM1.52m
4:30PM1.55m
2:43AM1.58m
5:14PM1.67m
3:53AM1.69m
5:51PM1.76m
Low Tide
4:45AM0.52m
4:27PM0.97m
6:01AM0.50m
5:44PM1.14m
7:34AM0.44m
7:56PM1.21m
8:58AM0.31m
9:36PM1.16m
10:03AM0.17m
10:34PM1.05m
10:55AM0.05m
11:19PM0.92m
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
light rain
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
5:18
5:18
5:20
5:20
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
6:59
6:58
6:57
6:55
6:54
6:53
 mm
2
9
4
7
18
7
6
8
2
4
6
2
1
Temp °C
27
30
29
27
28
28
27
28
28
27
27
27
27
27
27
27
29
29
26
Feels °C
29
29
28
28
29
29
28
29
29
29
28
29
29
28
28
30
31
31
29
  • 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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