Osaki Point Surf Break

Lat Long: 33.39° N 134.21° E

Osaki Point Surf Forecast and Surf Report

Issued: 2 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Osaki Point sea temperature is
28.4°C
0.6° 

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 22 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 3AM (local time) - 10ft (3.0m), 16s period, SE swell with glassy winds.
  • Most powerful swell: Tuesday 25 Aug, 6AM (local time) - 11ft (3.5m), 16s period, SSE swell with 6,682 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 9AM (local time) - 2.5ft (0.8m), 8s period with SSW 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 Sunday (Aug 23) at 9AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.5m and 10s. 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 3.5m 16s and forecast to arrive on Tuesday (Aug 25) at 6AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sun 23rd Aug)2.5ft (0.8m) 8s
Best Surf 3AM (Tue 25th Aug)10ft (3.0m) 16s
Most Powerful 6AM (Tue 25th Aug)11ft (3.5m) 16s

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


The Lowdown

Alright, this is Rusty, and I’m looking at what we’ve got coming up for Osaki Point. The water is sitting at a warm 83°F, which is pretty much normal for this time of year, so no surprises there.

The first few days are a bit of a slow start. Sunday the 23rd has some tiny 3ft swell from the SSW, but honestly, it’s just ordinary. Not worth getting wet for. We’ll wait.

Monday the 24th is where things start to get interesting. The morning is the real standout here. We’ve got a 4ft groundswell from the SE with a very long period of 19 seconds, and the wind is dead calm, glassy. That’s the kind of energy that brings real shape. The combined energy is moderate at 1038, but that long period will make the waves feel a lot bigger. This is a moment for experienced surfers to get on it—clean, lined-up sets. The afternoon gets bigger, 7ft, but the wind goes cross and the quality drops a bit.

Tuesday the 25th sees a big jump in size, with 12ft swell from the SSE, but the wind is cross-onshore. That’s a lot of water moving, with combined energy over 6500, but it’s going to be messy. Kite surfers might be more into this than paddle surfers.

Wednesday the 26th stays big, around 10ft to 12ft, but the wind stays unfriendly. The risk of thunderstorms doesn’t help. It’s still a lot of energy, but not clean.

Thursday the 27th morning is a gem. The swell drops to a still-solid 8ft from the S, and the wind goes glassy again. The combined energy is strong at 1745, and with that period down to 11 seconds, it’ll be a more manageable, powerful wave. Excellent for experienced surfers. The afternoon drops to 5ft and stays glassy, which is a good, clean option.

Friday the 28th has clean, offshore winds. The morning has 4ft from the S with a moderate 9-second period, and the wind is offshore from the W. Clean, fun waves. The afternoon bumps up to 6ft with a cross-offshore wind. Good, rideable conditions.

From Saturday the 29th onward, the swell drops and the wind turns onshore or cross-onshore for a long stretch. The surf gets small and messy, down to 3ft by Sunday the 30th. There’s a brief pulse of 7ft to 7ft on the 1st of September, but the wind is cross-onshore, so it’s lumpy. The start of September week is a write-off with strong onshore winds and choppy conditions, especially from the 2nd through the 5th, where the wind gets up to 34 mph from the SE. That’s just messy.

The 6th of September is a light at the end of the tunnel. The wind goes offshore from the WSW and SW, with a clean 5ft swell from the ESE. That’s a good, clean session to look forward to, but it’s a week and a half away, so keep an eye on it.

The best on offer is the Monday 24th morning glassy session with the long-period groundswell, and the Thursday 27th morning glassy, powerful waves. Those are your moments.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 30°C on Sun afternoon, min 26°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 18mm), heaviest on Wed afternoon. Warm (max 30°C on Fri morning, min 26°C on Thu afternoon). Wind will be generally light.

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
4
3
6
6
5
4
4
4
4
4
3
3
3
3
2
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
8
0.6
SSW
8
0.6
SE
12
1.1
SE
19
2.1
SE
16
2.5
SE
16
3.5
SSE
16
3.5
SSE
15
3.5
SSE
14
3.5
S
14
3
S
13
2.5
SSW
12
2.3
S
11
1.6
SSE
9
1.5
SSE
8
1.3
S
9
1.7
S
9
1.5
S
9
1.4
S
9
1.4
S
9
1.2
S
8
Wave Graph
Metric surfscale
Energy kJ
78
48
93
882
2160
3326
6491
5807
4122
4446
3393
1728
1232
405
321
287
481
356
306
320
200
Wind (km/h)
0
WSW
10
SSW
5
WSW
0
ESE
10
SSE
5
SSE
10
E
5
ESE
5
NE
10
E
10
SE
5
NNE
5
SE
5
NE
5
W
5
W
10
SW
5
NW
10
E
5
SSE
5
E
Wind State
glassy
cross-off
glassy
glassy
cross
glassy
cross-on
cross-on
cross-on
cross-on
cross
glassy
glassy
glassy
glassy
off
cross-off
glassy
on
cross
cross-on
High Tide
4:44PM1.42m
2:32AM1.39m
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
Low Tide
9:52PM1.18m
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
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
thunderstorm
rain showers
thunderstorm
light rain
cloud
part cloud
thunderstorm
part cloud
clear
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:30
5:31
5:31
5:31
5:33
5:33
5:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:38
6:37
6:37
6:36
6:34
6:32
 mm
5
5
4
2
2
2
11
Temp °C
29
30
27
29
29
27
29
29
27
29
29
27
28
27
27
30
29
27
28
28
27
Feels °C
34
34
32
33
32
33
32
33
33
33
34
32
32
31
32
34
32
32
32
32
32
  • 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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