Surf Forecasts:
Osaki Point surf forecast from 26 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 6PM (local time) - 6ft (1.8m), 12s period, SSW swell with offshore winds.
- Most powerful swell: Wednesday 2 Sep, 3PM (local time) - 13ft (4.0m), 15s period, S swell with 6,955 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 6PM (local time) - 6ft (1.8m), 12s 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 Wednesday (Aug 26) at 6PM. The primary swell is predicted to be 1.8m and 12s period with a secondary swell of 1.1m and 9s. 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 15s and forecast to arrive on Wednesday (Sep 02) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Saturday (Aug 29) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Wed 26th Aug) | 6ft (1.8m) 12s |
| Best Surf | 6PM (Wed 26th Aug) | 6ft (1.8m) 12s |
| Most Powerful | 3PM (Wed 2nd Sep) | 13ft (4.0m) 15s |
Table - best surf conditions forecast for Osaki Point over the next 16 days.
The Lowdown
G’day, Rusty here. Well, lookin’ this one over, we’ve got a bit of a slow burn before the real juice shows up. Early days are clean and rideable for the experienced, but the big stuff rolls in later with a whole lot of power and a fair bit of mess. Let’s get into it.
Wednesday morning kicks it off at Osaki Point with a solid 8ft southerly swell, period hanging around 11 seconds, so there’s some proper grunt behind it. The water’s sitting at 84°, which is a touch warmer than normal for this time of year. Wind’s a light 6 mph from the SSW, coming cross-off, and the wave comment says it’s excellent for experienced surfers. That’s a clean start but at that size, this ain’t for beginners.
Wednesday afternoon drops a bit to 6ft from the SSW, still clean, but the commentary flags marginal tide conditions, so you’ll want to pick your session.
Thursday morning the swell backs off to 4ft from the SSW with a 10-second period and a sweet 9 mph offshore from the SW. Clean, gentle lines. This is a good window for a more relaxed paddle. Thursday afternoon holds at 4ft from the SSE, still offshore, still clean. Good vibes.
Friday and Saturday mornings stay in the 3ft to 4ft range, with offshore breezes and clean faces. The swell period drops to 8 seconds Friday, so it’s a little more local in feel, but the conditions are sweet for cruising. Saturday afternoon sees the swell drop to just 1ft from the east with a 12-second period – very small, very clean, but you’re huntin’ for waves.
Sunday the 30th offers up a 3ft SSW swell with a 5-second period and glassy offshore wind. It’s clean but short-period, so expect mush burgers. Not worth gettin’ excited about.
Monday the 31st and Tuesday the 1st of September are a write-off. Poor conditions, onshore or cross winds, small weak swell. Tuesday has a 5ft southerly but it’s blown out with 19 mph easterly. No good.
Now here’s the stand-out: Wednesday the 2nd of September. Boom. Osaki Point sees 13ft from the SSE with an 11-second period. The combined energy is huge at 6198, that’s a serious push. But – and it’s a big but – the wind is a moderate cross-shore at 12 mph, and the commentary calls it marginal due to cross-chop and questionable tide. This is big, powerful, and ugly. Only for the experts, and even then, you’re wrestlin’ a bit of mess.
Thursday the 3rd stays big at 12ft from the SSE, cross-on wind, still lumpy. Friday the 4th afternoon looks cleaner, 7ft from the south, cross-off breeze, and clean. That’s a solid session once the swell drops a touch and the wind plays ball.
Saturday the 5th and Sunday the 6th are on the bigger side again – 10ft to 13ft swells – but the wind is cross or cross-on, and the commentary keeps callin’ it marginal. Monday the 7th has an 8ft to 10ft south-southeast swell with light cross-on wind, but again, it’s marginal.
From Tuesday the 8th onwards, it fades off. Small swell, onshore winds, poor conditions. A real nothing finish to the run.
Overall, the best call is the morning of Wednesday the 26th for a clean, challenging session, and keep an eye on Friday the 4th of September afternoon – that clean 7ft cross-off window is the one for experienced surfers who want shape without the chaos.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Thu night. Warm (max 30°C on Wed morning, min 27°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 35mm), heaviest during Mon night. Warm (max 30°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | S 11 | SSW 12 | SSW 11 | SSW 10 | SSE 10 | SSE 9 | SSW 8 | SSW 7 | S 7 | E 12 | E 12 | SSW 7 | SSW 6 | S 7 | S 8 | S 10 | S 12 | SSE 10 | S 13 | S 15 | S 16 |
Wave Graph | |||||||||||||||||||||
1371 | 897 | 521 | 296 | 214 | 158 | 122 | 118 | 112 | 44 | 43 | 101 | 47 | 51 | 80 | 98 | 180 | 109 | 335 | 1074 | 3040 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | off | off | off | off | off | off | off | off | cross-off | off | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 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 | 8:07AM1.73m | 8:04PM1.78m | ||||||||
Low Tide | 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 | 2:01PM0.57m | 2:31AM0.34m | |||||||
5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | |
— | 6:37 | — | — | 6:36 | — | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:29 | — | |
mm | — | — | — | — | — | 1 | — | 2 | 3 | 1 | 5 | 3 | — | 2 | — | — | 1 | 23 | 13 | 9 | 15 |
Temp °C | 30 | 30 | 27 | 30 | 30 | 27 | 30 | 30 | 27 | 29 | 29 | 27 | 30 | 29 | 27 | 29 | 29 | 27 | 28 | 28 | 28 |
Feels °C | 33 | 33 | 31 | 32 | 33 | 31 | 32 | 33 | 31 | 33 | 32 | 31 | 34 | 33 | 31 | 31 | 31 | 29 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | S 11 | SSW 12 | SSW 11 | SSW 10 | SSW 9 | SSE 9 | SSE 8 | E 13 | S 7 | S 8 | S 7 | E 11 | SSW 6 | S 7 | S 8 | S 10 | S 12 | SSE 10 | SE 9 | S 15 | S 16 |
1371 | 897 | 521 | 296 | 207 | 158 | 78 | 83 | 112 | 41 | 39 | 37 | 47 | 51 | 80 | 98 | 180 | 109 | 269 | 1074 | 3040 | |
Swell 2 Height (m) Direction Period (s) | E 13 | SE 9 | SE 8 | SSE 10 | SSE 10 | S 8 | E 13 | SSE 8 | E 12 | E 12 | E 12 | SE 11 | S 7 | SW 5 | S 12 | S 12 | SE 10 | S 12 | S 13 | E 12 | SE 9 |
84 | 237 | 166 | 196 | 214 | 34 | 85 | 25 | 74 | 44 | 43 | 19 | 27 | 13 | 41 | 27 | 35 | 100 | 335 | 43 | 515 | |
Swell 3 Height (m) Direction Period (s) | SE 15 | E 13 | E 12 | E 12 | E 12 | E 11 | SW 8 | SW 11 | SW 11 | SE 9 | SSE 9 | SSW 9 | E 11 | SE 10 | SE 10 | SW 10 | SE 7 | SW 8 | E 12 | E 12 | — |
8 | 82 | 72 | 68 | 42 | 37 | 29 | 30 | 19 | 14 | 8 | 8 | 22 | 17 | 27 | 14 | 13 | 18 | 26 | 42 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SSW 9 | SSW 8 | SSW 7 | — | SW 5 | SW 5 | SSW 7 | SW 5 | SW 5 | SW 4 | SW 4 | SSW 3 | SE 3 | E 6 | SE 9 | — |
— | — | — | — | — | 138 | 122 | 118 | — | 72 | 55 | 101 | 43 | 13 | 9 | 3 | 2 | 1 | 3 | 639 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 49 | 22 | 392 | 497 | 497 | 387 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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.











