Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 8 pm 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
29.2° C
1.4° 

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 6 Aug 2026:

  • Best quality surf: Friday 7 Aug, 12AM (local time) - 16ft (5.0m), 14s period, SE swell with onshore winds.
  • Most powerful swell: Friday 7 Aug, 12AM (local time) - 16ft (5.0m), 14s period, SE swell with 9,186 kJ wave energy.
  • Next surfable swell (1★+): Friday 7 Aug, 12AM (local time) - 16ft (5.0m), 14s 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 Friday (Aug 07) at 12AM. The primary swell is predicted to be 5.0m and 14s period with a secondary swell of 5.0m and 14s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Osaki Point in the next 16 days are 5.0m 14s and forecast to arrive on Friday (Aug 07) at 12AM. 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 Friday (Aug 14) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 7th Aug)16ft (5.0m) 14s
Best Surf12AM (Fri 7th Aug)16ft (5.0m) 14s
Most Powerful12AM (Fri 7th Aug)16ft (5.0m) 14s

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


The Lowdown

Righto, let's have a look at what's on the table for the next couple of weeks. At a glance, this is a classic tale of two halves. We’ve got a big, messy start followed by a real clean-up into some stunning conditions later on. The first week is going to be a write-off for anything decent, so you can save your energy for the second week which has some absolute gems in store.

We’re looking at Osaki Point, a beach and reef set-up. The water is sitting at 85°, which is a touch warmer than normal for this time of year – it feels good on the skin.

Right off the bat, Thursday the 6th through to the 10th of August is a tough slog. We’ve got a solid groundswell coming in, but it’s completely ruined by strong onshore winds. On the 6th, we’re talking about a massive 18 ft swell from the SE with a long 15-second period, but it’s blowing a gale onshore at 22 mph. The wave energy is through the roof (11919), but it’s all just whitewater chaos – strictly for the kamikaze crew or those who want to get thrashed. This pattern hangs around for days, with 13 ft on Friday, and then slowly dropping into the 8 ft range by Saturday. The wind eases a touch, but it’s still cross-onshore and choppy. It’s just not surfable.

Monday the 10th is still marginal with chest-high 4 ft swell and light cross-onshore wind. The energy is starting to drop (1118), but the waves are just messy.

Now, Tuesday the 11th of August is the first real glimmer of hope. We get a 5 ft SSW groundswell with an 11-second period, and the wind goes totally glassy in the morning. The energy is still moderate (755), but that clean, glassy surface is what we’ve been waiting for. It’s not huge, but it’ll be fun and clean for an intermediate crew. The afternoon keeps the clean lines going with a light offshore breeze.

Skip the rest of that week – the 12th through to the 16th is a return to onshore mush with tiny 3 ft swell and poor conditions. A full four days of nothing.

But then we get to the real standouts. The absolute best of the whole forecast kicks off on Monday the 17th and runs right through to Friday the 21st. This is the main event, folks.

Monday the 17th sees a new pulse of 8 ft E swell with a short 10-second period. The energy ramps up strong (2075), and while the morning has a light onshore breeze, it’s workable.

The stars align perfectly from Tuesday the 18th through to Thursday the 20th of August. This is where Osaki Point absolutely lights up. We’ve got a consistent 6 ft to 7 ft swell from the ESE. The periods are between 7 and 10 seconds, so it’s a mix of ground and wind swell, but the key here is the wind. Mornings are glassy – dead calm – and afternoons are clean with light offshore and cross-offshore breezes. The wave energy sits in the sweet moderate range (627-855). This is the sweet spot for an intermediate surfer – chest to head-high, clean, peeling waves. The consistency is there, and with the glassy conditions, the early sessions on the 18th and 19th are going to be unforgettable.

Thursday the 20th is another cracker with the same glassy mornings and clean 6 ft ESE swell. Friday the 21st starts glassy too, with a 5 ft swell, though the afternoon gets a bit more breeze on it and becomes more marginal.

To sum it up: if you want waves you can actually surf, forget this week. The real window is Tuesday the 18th through Thursday the 20th of August. That’s your two-to-three-day standout where the conditions are as good as it gets for this stretch. The water’s warm, the swell is solid, and the wind is right. Get in the water.

Rusty.

Short Range Forecast

Heavy rain (total 38mm), heaviest during Fri night. Warm (max 29°C on Sun afternoon, min 26°C on Fri night). Winds decreasing (fresh winds from the ENE on Thu night, calm by Sun afternoon).

Days 5-7 Weather Summary

Some drizzle, heaviest during Sun night. Warm (max 29°C on Tue morning, min 24°C on Tue night). Wind will be generally light.

Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
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
1
3
2
2
4
3
3
3
2
3
2
2
2
2
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
14
4.5
SE
12
3.5
SSE
12
2.4
S
12
2.4
SSW
12
2
SSW
11
1.7
SSW
11
1.5
E
13
1.4
E
13
1.4
E
13
1.3
E
12
1.2
E
12
1.2
S
10
1.3
SSW
10
1.1
S
11
1.4
SSW
11
1.3
SSW
11
1.3
SSW
10
1.2
SSW
10
Wave Graph
Metric surfscale
Energy kJ
9186
5863
3227
1602
1487
976
680
812
683
663
504
416
296
377
275
460
366
333
274
Wind (km/h)
30
ENE
25
E
25
E
20
E
20
E
15
E
10
E
10
ENE
10
ESE
5
ENE
5
E
5
SSE
5
NW
10
ENE
5
E
5
NNE
0
ENE
10
S
10
NW
Wind State
on
on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
glassy
on
glassy
glassy
on
glassy
cross-on
glassy
cross-off
cross-off
High Tide
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
4:50AM1.80m
6:24PM1.81m
Low Tide
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
11:40AM-0.01m
11:59PM0.79m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
part cloud
thunderstorm
thunderstorm
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:18
5:18
5:20
5:20
5:22
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
6:58
6:57
6:55
6:54
6:53
6:52
 mm
7
4
6
17
1
2
1
1
1
Temp °C
27
28
28
27
28
28
27
28
29
27
28
28
27
29
28
26
28
28
25
Feels °C
28
30
30
29
29
30
31
31
32
32
32
32
32
32
31
29
31
30
28
  • 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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