Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 8 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
28.3° C
0.5° 

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 20 Aug 2026:

  • Best quality surf: Monday 24 Aug, 6AM (local time) - 4ft (1.2m), 18s period, SE swell with glassy winds.
  • Most powerful swell: Tuesday 25 Aug, 3PM (local time) - 16ft (5.0m), 16s period, SSE swell with 12,771 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 6AM (local time) - 3.5ft (1.0m), 9s period with S 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 21) at 6AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.4m and 11s. 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 5.0m 16s and forecast to arrive on Tuesday (Aug 25) at 3PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Fri 21st Aug)3.5ft (1.0m) 9s
Best Surf 6AM (Mon 24th Aug)4ft (1.2m) 18s
Most Powerful 3PM (Tue 25th Aug)16ft (5.0m) 16s

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


The Lowdown

Alright, Rusty here. Let's have a look at what's brewing for Osaki Point.

First off, the water temp is about what you'd expect for this time of year, nothing wild to report there. The coming week is a bit of a mixed bag, but there's a couple of proper windows to get excited about if you're patient.

The run starts off this Friday morning, August 21st, with some clean, small waves. We're looking at a 3ft south swell, with a period around 9 seconds. The wind is glassy from the ESE, so it'll be smooth. The energy is moderate (207), so nothing to get the heart racing, but it's a fun, user-friendly size for an intermediate. This pattern hangs around through the weekend – Saturday and Sunday mornings both offering glassy conditions with that 3ft SSW swell. The afternoons get a bit of a cross-off wind, still surfable, but the magic is in those early sessions.

Now, Monday the 24th is where things start to shift. The swell jumps up, and we get a long-period, 16-second groundswell from the SE. Monday morning it's 6ft with moderate energy (2532), but the wind is cross-on, so it's a bit messy. Monday afternoon gets bigger, up to 10ft, but the same cross-on wind. This is more for the experienced crew, and the energy is strong (4561).

Tuesday the 25th is a beast. Morning sees a 16ft SSE swell with a 16-second period and howling ENE winds. The wave energy is massive (11737). This is strictly for experts only, and the wind is onshore, making it a real challenge. By afternoon, the wind strengthens to 19 mph onshore, and it's a write-off. This is more of a kite surfer's playground than a paddle surfer's.

Wednesday the 26th is a total write-off. Gale-force winds from the ESE and SE, with big, blown-out, dangerous surf. Stay out of the water.

The end of the week and into the next, conditions are marginal. There's a brief window Thursday afternoon, the 27th, with a fresh offshore wind from the WSW and a 8ft SSE swell. The energy is still strong (1377), but the wind is clean. It's a go for the brave, but it's a big, powerful wave.

We then hit a quiet patch from Friday the 28th through to Monday the 31st. The swell drops right off, and the wind is predominantly onshore or cross-onshore, leading to poor to marginal conditions. Nothing worth paddling out for.

Now, here's the standout. Mark your calendar for Tuesday, September 1st. This is the one. The morning kicks off with a 7ft ESE groundswell, a 14-second period, and glassy winds from the SE. The energy is very strong (2089). The afternoon is even better, with a 8ft swell and still glassy. This is excellent surf for experienced surfers. The direction is a perfect match for Osaki Point, and the conditions will be clean and powerful. This is the best on offer by a long shot.

Wednesday the 2nd sees a bit of a cross-onshore creep in, and the swell gets bigger, but the wind is not as clean. Thursday the 3rd is a massive, 20ft swell, but it's too big for this break, even for experts. The 18ft morning is also a no-go. The following days taper off but remain on the big side with unfavorable wind.

So, if you want the best surf, wait for Tuesday, September 1st. It's a session that will be remembered. The week before that is a mixed bag of small clean waves and big, wild conditions. Stay sharp.

Rusty

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri afternoon. Warm (max 29°C on Fri morning, min 25°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 213mm), heaviest during Wed morning. Warm (max 29°C on Tue morning, min 25°C on Mon night). Winds increasing (calm on Sun night, severe gales from the SSE by Wed afternoon).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
2
2
2
2
1
1
2
1
2
3
3
7
6
0
0
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)
0.9
S
9
1
S
9
1
S
9
1
S
9
0.9
SSW
9
0.9
SSW
9
0.9
SSW
9
0.9
SSW
9
0.8
SSW
9
0.6
SE
15
1.8
SE
16
3
SE
17
4
SE
17
5
SSE
16
5
SSE
16
4.5
SSE
14
3.5
SSE
12
3
SSE
10
3
SSE
10
Wave Graph
Metric surfscale
Energy kJ
126
168
180
165
143
129
131
124
86
136
1671
4386
8148
11654
12771
7815
3194
1875
1361
Wind (km/h)
5
W
5
ESE
10
SSW
5
W
5
SE
10
SSW
5
WSW
5
S
10
S
5
WSW
10
E
10
ESE
10
ENE
20
ENE
30
ENE
35
ENE
65
ESE
70
SE
65
S
Wind State
glassy
glassy
cross-off
off
glassy
cross-off
glassy
glassy
cross-off
glassy
cross-on
cross-on
on
on
on
on
cross-on
cross
cross-off
High Tide
9:52PM1.48m
2:11PM1.21m
10:36PM1.40m
4:23PM1.32m
00:37AM1.34m
4:44PM1.42m
2:32AM1.39m
5:05PM1.52m
3:36AM1.49m
5:26PM1.60m
4:21AM1.60m
5:47PM1.67m
Low Tide
5:43AM0.65m
4:02PM1.20m
7:29AM0.66m
8:20PM1.27m
8:58AM0.58m
9:52PM1.18m
9:53AM0.46m
10:27PM1.07m
10:32AM0.35m
10:56PM0.96m
11:06AM0.26m
11:23PM0.84m
clear
part cloud
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:28
5:30
5:31
5:31
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:44
6:43
6:42
6:40
6:38
6:37
6:37
 mm
1
1
1
45
79
88
262
Temp °C
26
29
28
26
29
29
27
29
29
26
28
28
26
29
29
27
27
27
27
Feels °C
31
33
32
30
33
32
32
33
33
31
32
31
29
30
29
27
22
19
20
  • 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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