Surf Forecasts:
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 Type | Time (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 ForecastLight 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 SummaryModerate 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 | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SE 19 | SE 16 | SSE 17 | SSE 14 | SSE 13 | S 13 | S 13 | S 12 | SSW 11 | SSW 11 | SSE 9 | SSE 8 | SSW 8 | SSW 9 | S 8 | SSW 9 | SSW 9 | S 8 | SSW 11 | SSW 10 | SSW 10 |
Wave Graph | |||||||||||||||||||||
911 | 2386 | 2491 | 4275 | 2904 | 2722 | 2021 | 1249 | 655 | 619 | 344 | 207 | 212 | 294 | 190 | 148 | 197 | 133 | 302 | 163 | 87 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | |||||||
5:31 | — | — | 5:31 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | |
— | 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 |
Swell 1 Height (m) Direction Period (s) | SE 19 | SE 16 | SE 14 | SSE 14 | SSE 13 | S 13 | S 13 | S 12 | SSW 11 | SSW 11 | SSE 9 | SSE 8 | SSW 8 | SSW 9 | S 8 | SSW 9 | SSW 9 | S 8 | SSW 11 | SSW 10 | SSW 10 |
911 | 2386 | 1972 | 4275 | 2904 | 2722 | 2021 | 1249 | 655 | 619 | 344 | 207 | 212 | 294 | 190 | 148 | 197 | 133 | 302 | 163 | 83 | |
Swell 2 Height (m) Direction Period (s) | SE 12 | E 12 | SSE 17 | E 15 | E 14 | E 14 | SE 9 | SE 9 | SE 8 | SE 8 | SSW 11 | SSW 9 | SE 8 | SSE 7 | SW 10 | SSE 8 | E 12 | SW 10 | SE 10 | SE 10 | SE 10 |
139 | 73 | 2491 | 106 | 103 | 129 | 166 | 188 | 162 | 162 | 305 | 161 | 95 | 70 | 74 | 63 | 43 | 53 | 36 | 37 | 37 | |
Swell 3 Height (m) Direction Period (s) | E 12 | S 8 | SW 8 | E 15 | E 14 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 11 | E 13 | E 13 | E 12 | E 12 | SE 11 | E 11 | E 11 | E 11 | E 11 |
75 | 19 | 16 | 38 | 103 | 127 | 121 | 82 | 73 | 44 | 42 | 38 | 85 | 83 | 74 | 44 | 5 | 36 | 21 | 21 | 21 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 3 | SSW 8 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 87 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 20 | 20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 |
Best forecast wave conditions in Shikoku | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











