Surf Forecasts:
Osaki Point surf forecast from 27 Aug 2026:
- Best quality surf: Friday 28 Aug, 6AM (local time) - 3.5ft (1.0m), 9s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 3 Sep, 12AM (local time) - 13ft (4.0m), 12s period, S swell with 4,512 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 6AM (local time) - 3.5ft (1.0m), 9s 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 Friday (Aug 28) at 6AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.9m and 8s. Another secondary swell of 0.5m and 8s is also forecast. 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 12s and forecast to arrive on Thursday (Sep 03) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Aug 29) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 28th Aug) | 3.5ft (1.0m) 9s |
| Best Surf | 6AM (Fri 28th Aug) | 3.5ft (1.0m) 9s |
| Most Powerful | 12AM (Thu 3rd Sep) | 13ft (4.0m) 12s |
Table - best surf conditions forecast for Osaki Point over the next 16 days.
The Lowdown
Alright, let's get down to it for Osaki Point. The next couple of days are pretty weak, so don't rush out. But there's some proper swell lurking in the forecast, so keep your board ready.
Right now, we're looking at some small, clean but unremarkable waves. Friday morning has a clean 3ft from the SSW with a light offshore breeze. It's surfable, but not much more. The afternoon drops a bit in period. Saturday is similar, around 3ft, still clean but very ordinary. Sunday is smaller yet, down to 2ft. The wave energy during these days is weak, sitting in the 90-160 range. It's a bit of a lull.
Now, here's where it gets real. We've got a stretch of poor conditions from Monday the 31st through Tuesday the 1st, with onshore winds and the swell starting to build. By Wednesday the 2nd, we're looking at a bigger, more powerful SSW swell, but it's messy with cross-shore winds. The energy is moderate, in the 1400-1900 range. This isn't the time unless you're looking for a beating.
The real standout window starts on Thursday the 3rd of September. The swell jumps to a solid 12ft from the SSE, with a period of 11 seconds. That's real groundswell, and the combined energy is strong, reading 2788. The wind goes cross-offshore, keeping it clean. This is big, powerful surf, and it's for experts only. It stays big and clean through Friday the 4th and into the weekend, with waves in the 7ft to 8ft range. The energy stays strong, but the wind picks up a bit on Sunday the 6th. Still, it's cross-off and clean.
But if you want my honest pick, the best of the whole run is looking like Monday the 7th of September. The swell drops a touch to a still-chunky 7ft, but the wind goes light offshore from the SW. The forecast notes "very good surf conditions." That's the one to circle. The energy is still solid at 854, and with that light offshore wind, Osaki Point should be handling it beautifully. The swell direction is SSE, which is just about perfect for this spot.
The week after that stays interesting. There’s another pulse of energy mid-week, and by Wednesday afternoon the 9th, the forecast is calling for "excellent surf conditions for experienced surfers" with an 8ft SSW swell and moderate offshore winds. Thursday the 10th and Friday the 11th also look clean and fun, with glassy conditions and waves in the 7ft to 7ft range. By Saturday the 12th, things start to back off again, with smaller, weaker surf and onshore winds creeping back in.
So, to sum it up: the next few days are small and nothing special. The middle of the first week brings big, messy, powerful surf that's only for the brave. But the standout days are Monday the 7th and Wednesday the 9th, with the 7th looking like the pick of the bunch for clean, powerful waves.
As for the water temp, it's pretty average for this time of year. Nothing wild there.
Alright, stay stoked, and I'll see you out there.
Rusty
Short Range ForecastLight rain (total 4mm), mostly falling on Thu night. Warm (max 30°C on Fri morning, min 26°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 69mm), heaviest during Tue afternoon. Warm (max 29°C on Mon morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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) | SSE 9 | SSW 8 | SSW 7 | S 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 11 | S 10 | SSE 9 | SSE 10 | SSE 10 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | S 12 |
Wave Graph | |||||||||||||||||||
197 | 136 | 102 | 115 | 102 | 97 | 78 | 57 | 52 | 89 | 273 | 355 | 574 | 703 | 885 | 1181 | 1351 | 1834 | 4512 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | cross-off | glassy | on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-off |
High Tide | 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 | 8:53AM1.61m | 8:31PM1.72m | |||||||
Low Tide | 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 | 2:33PM0.75m | |||||||
— | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:35 | — | — | 5:35 | — | — | 5:37 | — | — | |
6:36 | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | |
mm | 3 | — | 1 | — | — | — | — | — | — | — | — | 2 | 10 | 10 | 11 | 20 | 7 | 9 | 16 |
Temp °C | 28 | 30 | 30 | 27 | 30 | 30 | 27 | 30 | 29 | 26 | 29 | 29 | 27 | 28 | 28 | 27 | 28 | 28 | 27 |
Feels °C | 32 | 33 | 34 | 31 | 32 | 32 | 30 | 32 | 31 | 31 | 32 | 32 | 29 | 30 | 30 | 28 | 30 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 8 | E 13 | S 8 | SSW 8 | E 12 | SSW 7 | SSW 7 | S 7 | S 7 | S 10 | SSE 9 | SSE 10 | SSE 10 | SSE 9 | SSE 10 | E 11 | E 11 | S 12 |
188 | 78 | 83 | 115 | 102 | 43 | 78 | 57 | 52 | 38 | 273 | 355 | 574 | 703 | 885 | 1181 | 86 | 85 | 4512 | |
Swell 2 Height (m) Direction Period (s) | S 8 | E 13 | SSE 8 | E 12 | E 12 | SSE 9 | E 11 | E 11 | E 11 | S 11 | SE 10 | E 11 | ESE 14 | E 13 | E 12 | E 11 | — | — | E 11 |
33 | 85 | 25 | 74 | 44 | 8 | 37 | 21 | 21 | 89 | 34 | 20 | 36 | 82 | 72 | 93 | — | — | 56 | |
Swell 3 Height (m) Direction Period (s) | E 11 | SW 10 | SW 11 | SE 9 | SE 10 | SSE 11 | SE 11 | SE 10 | SE 10 | SE 10 | E 11 | E 15 | E 11 | — | — | — | — | — | — |
37 | 37 | 31 | 14 | 14 | 12 | 19 | 17 | 17 | 37 | 21 | 17 | 9 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 9 | SSW 8 | SSW 7 | SSW 8 | — | SSW 7 | SW 4 | — | — | — | — | — | — | — | — | — | SSE 10 | SSE 10 | — |
197 | 136 | 102 | 109 | — | 97 | 12 | — | — | — | — | — | — | — | — | — | 1351 | 1834 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 49 | 392 | 497 | 497 | 387 | 387 | 456 | 393 |
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.











