Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 2 am 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
28.7°C
1.0° 

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 24 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 6AM (local time) - 11ft (3.5m), 15s period, SSE swell with glassy winds.
  • Most powerful swell: Tuesday 25 Aug, 6AM (local time) - 11ft (3.5m), 15s period, SSE swell with 4,711 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 3PM (local time) - 7ft (2.1m), 16s 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 Monday (Aug 24) at 3PM. The primary swell is predicted to be 2.1m and 16s period with a secondary swell of 0.5m and 12s. 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 3.5m 15s and forecast to arrive on Tuesday (Aug 25) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Monday (Aug 31) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Mon 24th Aug)7ft (2.1m) 16s
Best Surf 6AM (Tue 25th Aug)11ft (3.5m) 15s
Most Powerful 6AM (Tue 25th Aug)11ft (3.5m) 15s

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


The Lowdown

Alright groms, Rusty here. Let’s talk about what Osaki Point has cooking for the next couple of weeks. It’s a proper mixed bag, starting with a heater and then going quiet.

This week kicks off with a standout. Monday the 24th is the pick of the entire run. We’ve got a glassy, clean morning with a 4ft swell out of the SE. The period is a massive 19 seconds, packing moderate-to-strong wave energy (1125). That’s proper groundswell. The water is sitting at 84°, which is a touch warmer than average for the time of year. For the morning, with zero wind, it’s going to be epic for experienced surfers. Those long-period sets might jack up a bit straight on the beach, but the point and reef setup here should offer some great lines. By the afternoon, the swell bumps to 7ft from the SE with a 16-second period and a clean cross-off breeze. This is the day to be in the water.

Tuesday the 25th brings the biggest swell of the run, hitting 10ft from the SSE, but the quality takes a hit. The morning has a light cross-onshore breeze that’ll put little bumps on the face. The period drops to 14 seconds, so it’s not as clean. The wave energy is strong (4419). This is expert-only, big-wave territory. The afternoon stays cross-shore, still not great.

Wednesday the 26th is another good day. The morning has a 8ft SSW swell with a 13-second period and a cross-off breeze, keeping things clean. There’s a risk of thunderstorms, so keep an eye out. The afternoon holds at 7ft with a 12-second period and clean cross-off wind.

After that, the energy fades. Thursday the 27th has 5ft waves in the morning with clean winds, dropping to 5ft in the afternoon. It’s still surfable, but not as punchy. Friday the 28th and Saturday the 29th see smaller, cleaner waves in the 4ft to 3ft range, with a glassy morning on Saturday. Sunday the 30th gets messy as the wind swings onshore in the afternoon, ending the good run.

Then we hit a long, flat spell. From Monday the 31st of August all the way through the 7th of September, it’s pretty much a write-off. Onshore winds and poor conditions dominate. There’s a spike on Wednesday the 2nd of September with a 8ft SSW swell, but the wind is howling onshore from the ENE, making it a total mess for a paddle board. Honestly, with that wind and swell, it looks way more like a kite-surfing session than a surf session.

Finally, on Tuesday the 8th of September, we get a little hope. The swell is small at 3ft from the east with an 11-second period, but the wind is light and cross-off. The conditions are clean, but the energy is weak (246). It’s promising, but a long way out.

The absolute highlight is Monday the 24th. The crowds here are listed as "sometimes," so you might see a few heads out for that morning glass, but for conditions like that, you won’t care. Get on it.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Wed night. Warm (max 30°C on Wed morning, min 26°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Thu morning. Warm (max 30°C on Sat afternoon, min 25°C on Thu afternoon). Wind will be generally light.

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
5
4
4
4
4
4
3
3
3
2
2
2
2
2
2
2
2
1
2
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
19
2.1
SE
16
2.1
SSE
17
3
SSE
14
3
SSE
13
3
S
13
2.5
S
13
2.1
S
12
1.7
SSW
11
1.6
SSW
11
1.5
SSE
9
1.2
SSE
8
1.2
SSW
8
1.4
SSW
9
1.2
S
8
0.9
SSW
9
1.1
SSW
9
1
S
8
1.2
SSW
11
0.9
SSW
10
0.7
SSW
10
Wave Graph
Metric surfscale
Energy kJ
911
2386
2491
4275
2904
2722
2021
1249
655
619
344
207
212
294
190
148
197
133
302
163
87
Wind (km/h)
5
SSE
10
S
5
WSW
5
SE
5
SSE
5
WSW
5
S
15
SSW
5
S
10
SSW
5
WNW
0
WSW
5
W
10
SW
10
W
0
NW
15
SW
10
WSW
10
WSW
20
SW
10
W
Wind State
glassy
cross-off
glassy
cross-on
cross
glassy
cross-off
cross-off
glassy
cross-off
cross-off
glassy
off
off
cross-off
glassy
cross-off
off
off
cross-off
off
High Tide
5:05PM1.52m
3:36AM1.49m
5:26PM1.60m
4:21AM1.60m
5:47PM1.67m
5:00AM1.71m
6:09PM1.73m
5:36AM1.78m
6:30PM1.78m
6:12AM1.83m
6:52PM1.81m
6:48AM1.84m
7:15PM1.82m
Low Tide
9:53AM0.46m
10:27PM1.07m
10:32AM0.35m
10:56PM0.96m
11:06AM0.26m
11:23PM0.84m
11:36AM0.21m
11:50PM0.72m
12:05PM0.20m
00:19AM0.60m
12:34PM0.23m
00:48AM0.49m
1:02PM0.31m
1:20AM0.41m
clear
clear
clear
clear
clear
clear
thunderstorm
part cloud
rain showers
thunderstorm
mod rain
part cloud
thunderstorm
part cloud
part cloud
part cloud
part cloud
rain showers
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
5:31
5:31
5:33
5:33
5:33
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:37
6:37
6:36
6:34
6:32
6:31
 mm
1
2
5
7
1
1
Temp °C
29
29
27
29
29
27
30
30
28
28
26
26
28
29
27
29
30
27
30
30
27
Feels °C
33
32
33
32
33
32
34
33
33
33
31
31
32
32
31
33
33
31
32
32
31
  • 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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