Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 8 pm 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
29.1°C
1.3° 

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 25 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 3AM (local time) - 8ft (2.4m), 12s period, S swell with offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 12AM (local time) - 13ft (4.0m), 14s period, S swell with 5,526 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 3AM (local time) - 8ft (2.4m), 12s 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 Wednesday (Aug 26) at 3AM. The primary swell is predicted to be 2.4m and 12s period with a secondary swell of 0.8m and 10s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Osaki Point in the next 16 days are 4.0m 14s and forecast to arrive on Wednesday (Sep 02) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Sunday (Aug 30) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 26th Aug)8ft (2.4m) 12s
Best Surf 3AM (Wed 26th Aug)8ft (2.4m) 12s
Most Powerful12AM (Wed 2nd Sep)13ft (4.0m) 14s

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


The Lowdown

Alright folks, Rusty here. Let's have a look at what's on the cards for the next couple of weeks.

It’s going to be a story of two halves at Osaki Point. We kick off with a solid run of clean, rideable waves, but then things get messy, and the second week looks like a write-off for the paddle crew. The standout window is right now, from Wednesday the 26th through to Friday the 28th of August.

We start Wednesday morning with a solid 8 ft swell rolling in from the south, with a period of 11 seconds. The wind is a light cross-offshore breeze at 6 mph, and the water is about average for the time of year. The combined energy is a strong 1463, and the conditions are described as excellent for experienced surfers. That's a proper wedge of groundswell, and it's going to be a bit of a handful for the groms. The afternoon holds up well too, with a 6 ft SSW swell, still clean with that cross-off wind.

Thursday the 27th and Friday the 28th are your best bets for the mid-week. The swell drops to a more manageable 4 ft to 4 ft range, but the wind goes fully offshore from the WSW/SW. That means clean, peeling lines. The swell direction is coming from the SSW, which is a bit south of the optimum SSE, but with that offshore wind, it’ll still be a joy. The wave energy is moderate (in the 300-550 range), so it will be punchy enough for a fun session.

Saturday the 29th and Sunday the 30th are the wind-down. The swell gets small, dropping under 3 ft, and the energy is weak (around 95). There are thunderstorms in the forecast, but the wind stays light, so it's still surfable, just very ordinary.

Then we hit a big gap. From Monday the 31st of August onwards, the wind goes onshore and strengthens, making a mess of the waves. By Tuesday the 1st of September, a big, lumpy, onshore wind swell hits with 8 ft to 12 ft of poorly shaped, choppy stuff. The energy is off the charts, over 8000, but it's a washing machine. This is less a surf forecast and more a kite-surfing setup. The wind continues to blow hard from the east and southeast for the next week, making the ocean look like a mess. There is a brief window on Thursday the 4th and Friday the 5th of September where the swell is huge (10 ft to 13 ft) and the wind is cross-offshore, but it’s a big, powerful, and dangerous proposition likely only for the absolute experts. For the rest of us, it’s a no-go.

The overall pattern is clear: the first three days are the window. Don't sleep on the Thursday and Friday of this week. After that, we’re looking at a 10-day stretch of poor conditions. It’s a shame because the area usually has decent consistency, but this run is a tough one.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Fri afternoon. Warm (max 30°C on Wed morning, min 27°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 19mm), heaviest on Fri night. Warm (max 29°C on Sat morning, min 26°C on Fri night). Wind will be generally light.

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
4
3
3
2
2
2
2
2
1
1
1
1
1
1
1
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)
2.5
SSE
12
2.3
S
11
1.8
SSW
12
1.5
SSW
11
1.3
SSW
10
1.1
SSE
10
1
SSE
9
1.1
SSW
8
1.2
S
8
1.1
SSW
8
0.9
S
8
0.4
E
12
0.4
E
11
0.3
E
11
0.5
S
7
0.4
SW
10
0.8
SSE
10
0.9
SSE
10
1.6
SSE
12
Wave Graph
Metric surfscale
Energy kJ
2147
1371
897
531
346
231
154
149
172
143
89
44
37
22
27
37
139
163
755
Wind (km/h)
5
W
10
SSW
15
SSW
10
WSW
15
WSW
15
SW
15
WSW
15
SW
15
SW
10
WSW
10
SW
20
SW
15
SW
10
WSW
15
SW
10
SW
10
SE
15
ESE
20
E
Wind State
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
off
off
off
off
cross-off
off
cross
cross-on
on
High Tide
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
7:26AM1.80m
7:39PM1.81m
Low Tide
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
1:31PM0.42m
1:54AM0.35m
clear
part cloud
clear
rain showers
part cloud
part cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
5:33
5:33
5:33
5:35
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:36
6:34
6:32
6:31
6:30
 mm
1
1
3
5
2
2
6
2
2
24
Temp °C
27
30
30
28
30
30
27
30
30
27
29
29
27
29
29
27
29
29
27
Feels °C
32
33
33
33
33
33
30
33
33
31
32
32
31
34
33
31
32
32
30
  • 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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