Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 8 pm 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
28.8°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 7 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 12AM (local time) - 8ft (2.5m), 9s period, SSE swell with glassy winds.
  • Most powerful swell: Wednesday 9 Sep, 12PM (local time) - 8ft (2.5m), 9s period, SSE swell with 1,124 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 12AM (local time) - 8ft (2.5m), 9s period with SSE 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 Wednesday (Sep 09) at 12AM. The primary swell is predicted to be 2.5m and 9s period with a secondary swell of 2.3m and 9s. Another secondary swell of 0.1m and 19s is also forecast. 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 2.5m 9s and forecast to arrive on Wednesday (Sep 09) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Thursday (Sep 10) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Wed 9th Sep)8ft (2.5m) 9s
Best Surf12AM (Wed 9th Sep)8ft (2.5m) 9s
Most Powerful12PM (Wed 9th Sep)8ft (2.5m) 9s

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


The Lowdown

Alright, Rusty here. Let’s talk about what’s on the menu for Osaki Point over the next couple of weeks.

First off, I gotta be straight with you – the next few days are not looking good. Tuesday the 8th kicks off with a stormy vibe, onshore winds, and messy conditions. The swell is there at 5ft from the S, but with that ENE wind blowing 12 mph, it’s just a choppy mess. Combined energy is moderate at 589, but it’s not worth paddling out. Afternoon gets a bit bigger at 6ft, but same story – wind is on it, and the rain is moving in. Score is low.

Wednesday the 9th is a little better. Swell bumps up to 8ft from the SSE, and the wind drops to a light breeze, but it’s cross-shore. The combined energy hits 1029 which is moderate, but the surf is still marginal. There’s some risk of thunderstorms, so it’s a gamble. Not the day to rush.

Thursday the 10th drops back to 4ft, and the wind is on it or cross-on. Poor conditions. Same for most of the weekend. Friday the 11th is the first real flicker of hope – the morning goes glassy with a light 4ft SSE swell. The energy is only 238, but glassy conditions are always a gift. Afternoon turns clean with a light cross-offshore. It’s small, but it’s rideable.

Saturday the 12th is tiny – 2ft from the E, with a very long 14-second period. That’s a groundswell, but it’s so small it’s barely breaking. Glassy in the morning, clean in the afternoon, but you’ll be chasing ankle-biters. Energy is weak at 156. Sunday the 13th is worse, onshore winds and poor conditions.

We’ve got a gap of poor surf from Sunday through most of the next week. Monday the 14th and Tuesday the 15th are mostly onshore or cross-on, with small swell. The energy is moderate, but the wind ruins it. Wednesday the 16th morning goes glassy again with 4ft from the ESE – a clean, small window, but it’s short-lived as the wind swings onshore in the afternoon.

Now, the real standout. You’ve got to wait until the 21st of September. Monday the 21st afternoon at Osaki Point, the stars align. The swell hits 8ft from the SE, with a very long 16-second period. The combined energy is a massive 3237 – strong wave energy. And the wind? Glassy. That’s a recipe for excellent surf, but it’s for experienced surfers only, as it’s over 8ft. This is a point break setup, so that long period groundswell will wrap in nicely, but it’s going to be powerful. This is the best on offer in the whole window. Tuesday the 22nd is even bigger – 10ft from the same direction, but the wind is cross-on or onshore, so it won’t be as clean. Still, for the big-wave crew, it’s a serious session.

The water temp is about average for this time of year, no big anomaly to report.

If you’re not an expert, wait for the glassy morning of the 16th, or the clean Friday the 11th. The rest of the fortnight is a write-off or for the brave.

Rusty.

Short Range Forecast

Heavy rain (total 63mm), heaviest during Tue morning. Warm (max 28°C on Wed morning, min 23°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Fri morning. Warm (max 28°C on Sat morning, min 24°C on Thu night). Wind will be generally light.

Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
4
3
3
0
0
0
0
2
2
1
1
1
2
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)
1.4
SE
8
1.5
S
9
1.8
S
9
2.5
SSE
9
2.5
SSE
9
2.5
SSE
8
1.6
SSE
8
1.3
SSE
8
1.3
SSE
9
1.2
SSE
8
1.1
SSE
8
1.1
SSE
8
1
SSE
7
0.5
E
14
0.5
E
14
0.7
E
14
0.5
E
13
0.8
ESE
13
1.2
ESE
9
Wave Graph
Metric surfscale
Energy kJ
279
373
551
1067
1023
1000
331
241
247
184
145
128
101
89
89
192
85
236
211
Wind (km/h)
20
NE
20
ENE
15
ENE
5
ESE
10
SSE
10
SE
20
NE
10
NE
10
ENE
10
NE
5
E
15
SW
5
WNW
5
SSW
10
SSW
5
ENE
10
ENE
10
E
15
ENE
Wind State
on
on
on
glassy
cross
cross
cross-on
cross-on
on
on
glassy
cross-off
glassy
glassy
cross-off
glassy
on
on
on
High Tide
2:55AM1.54m
4:53PM1.68m
3:59AM1.68m
5:22PM1.76m
4:50AM1.80m
5:48PM1.81m
5:34AM1.87m
6:14PM1.84m
6:15AM1.89m
6:38PM1.84m
6:54AM1.86m
7:00PM1.83m
Low Tide
9:46PM1.08m
9:56AM0.24m
10:29PM0.91m
10:42AM0.17m
11:05PM0.73m
11:21AM0.16m
11:39PM0.57m
11:56AM0.20m
00:12AM0.43m
12:28PM0.29m
00:44AM0.34m
12:58PM0.42m
1:15AM0.29m
light rain
mod rain
mod rain
rain showers
thunderstorm
thunderstorm
light rain
rain showers
rain showers
part cloud
rain showers
thunderstorm
clear
thunderstorm
thunderstorm
clear
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:41
5:41
5:43
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:21
6:20
6:19
6:16
6:15
6:15
6:13
 mm
4
9
10
10
12
11
5
1
1
1
2
1
1
2
Temp °C
26
26
26
27
28
28
24
25
26
24
27
27
26
28
28
26
28
28
26
Feels °C
28
29
30
32
33
33
26
27
29
26
32
30
30
33
33
32
31
31
29
  • 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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