
Surf Forecasts:
Osaki Point surf forecast from 10 Aug 2026:
- Best quality surf: Monday 10 Aug, 9PM (local time) - 3.5ft (1.1m), 12s period, E swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 9PM (local time) - 3.5ft (1.1m), 12s period, E swell with 342 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 9PM (local time) - 3.5ft (1.1m), 12s period with E 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 10) at 9PM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 1.1m and 11s. 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 1.1m 12s and forecast to arrive on Monday (Aug 10) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Wednesday (Aug 12) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 10th Aug) | 3.5ft (1.1m) 12s |
| Best Surf | 9PM (Mon 10th Aug) | 3.5ft (1.1m) 12s |
| Most Powerful | 9PM (Mon 10th Aug) | 3.5ft (1.1m) 12s |
Table - best surf conditions forecast for Osaki Point over the next 16 days.
The Lowdown
Alright, listen up. Rusty here. Let’s get into what the next couple of weeks are looking like for Osaki Point. It’s a mixed bag, to be honest, but there’s a definite window of clean surf early on that you’ll want to be on top of.
The first bit of action kicks off Monday afternoon, August 10th. We’ve got some clouds, but the wind is dead glassy from the SE at 3 mph. Swell is a clean 3.9ft from the east with a solid 12-second period. The combined energy is at a moderate 805, and it’s expected to be very good surf. Water temp is sitting at 83.7°, which is about normal for this time of year. This is the standout of the whole period, so if you can get out, do it.
Tuesday the 11th is a bit of a letdown. The morning has a 3.6ft south swell, but it’s onshore and the forecast is marginal. The afternoon picks up slightly to 4.3ft from the SSW, but it’s still onshore and questionable. The energy is moderate, around the 550s, but the wind is messing it up. I’d give it a miss.
Wednesday morning on the 12th is another good window. Completely calm winds, glassy conditions, with a 3.6ft SSW swell at 10 seconds. The energy is a moderate 406 and the call is for good surf. It won’t be big, but it’ll be clean. The afternoon turns a bit choppy with a cross-on breeze, so mornings are the go-to here.
The rest of the week into the 13th and 14th is poor. We’ve got storm risks and onshore winds, with small, short-period swells. Thursday is a write-off, and Friday morning sees a small 2.6ft glassy wave, but it’s weak. Friday afternoon gets messy with a cross-shore breeze.
The weekend sees a slight improvement. Saturday the 15th has clean 3ft waves in the morning with a light air, but the afternoon gets crossed up. Sunday the 16th is similar, but the afternoon turns cross-off and clean, with a 2.6ft east swell. It’s small, but rideable.
The real pick of the second week is Monday, August 17th. The swell fills back in a touch to 3.6ft from the east with an 11-second period. The wind is light and cross-off in the morning, cleaning it up nicely. Both the morning and afternoon sessions look good, with energy in the 340-388 range. This is a solid day for a point break like this.
After that, things taper off. The swell drops and the periods get shorter. From the 18th onward, we’re looking at mostly small, weak surf. The energy drops below 200, and it stays that way for the rest of the week. There are some clean, glassy moments on the 22nd and 23rd, but the waves are only around 2.3ft to 2.6ft. It’s more of a longboard or a funboard sort of deal.
The very end of the window, on the 25th, shows a little pulse of long-period east swell at 12 seconds, but the height is still small. It’s a tease, more than anything.
So, the honest truth is, the best surf in this window is on Monday the 10th and Monday the 17th. The first one is the biggest and cleanest of the bunch. The second week is much smaller and less consistent, so don’t get your hopes up too high. It’s not a complete blank, but you’ve got to pick your moments.
Stay stoked.
Short Range ForecastModerate rain (total 16mm), heaviest on Wed night. Warm (max 30°C on Mon afternoon, min 23°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Thu afternoon. Warm (max 29°C on Sat afternoon, min 24°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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) | E 12 | E 12 | S 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | E 11 | E 10 | SSW 10 | S 10 | E 10 | SSW 10 | E 10 | E 11 |
Wave Graph | ||||||||||||||||||||
413 | 336 | 235 | 326 | 333 | 260 | 157 | 201 | 149 | 146 | 108 | 106 | 108 | 96 | 157 | 192 | 161 | 165 | 133 | 326 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | on | on | cross-off | glassy | cross-on | cross-on | on | cross-on | glassy | glassy | cross | cross-off | glassy | cross | glassy | cross-on | cross-off | cross-off |
High Tide | 5:14PM1.67m | 3:53AM1.69m | 5:51PM1.76m | 4:50AM1.80m | 6:24PM1.81m | 5:39AM1.88m | 6:55PM1.83m | 6:25AM1.90m | 7:23PM1.83m | 7:08AM1.87m | 7:50PM1.81m | 7:50AM1.78m | 8:15PM1.77m | |||||||
Low Tide | 10:34PM1.05m | 10:55AM0.05m | 11:19PM0.92m | 11:40AM-0.01m | 11:59PM0.79m | 12:20PM0.01m | 00:36AM0.66m | 12:57PM0.08m | 1:13AM0.56m | 1:30PM0.22m | 1:49AM0.50m | 2:01PM0.39m | 2:25AM0.47m | |||||||
— | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | |
6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | |
mm | — | — | — | — | — | — | 1 | 10 | 5 | 3 | 4 | — | 2 | — | — | — | 1 | 2 | 2 | 1 |
Temp °C | 30 | 27 | 28 | 29 | 25 | 27 | 26 | 25 | 26 | 26 | 25 | 27 | 28 | 26 | 28 | 29 | 26 | 28 | 28 | 26 |
Feels °C | 35 | 31 | 30 | 30 | 27 | 28 | 27 | 28 | 29 | 28 | 28 | 29 | 31 | 30 | 31 | 32 | 30 | 31 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | E 12 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 10 | S 10 | SSW 9 | SSW 10 | E 10 | E 11 |
413 | 264 | 235 | 326 | 333 | 260 | 157 | 201 | 149 | 146 | 108 | 106 | 103 | 96 | 157 | 192 | 138 | 150 | 133 | 326 | |
Swell 2 Height (m) Direction Period (s) | S 10 | E 12 | E 11 | E 11 | E 11 | E 11 | S 10 | E 10 | E 10 | E 9 | E 9 | E 11 | E 11 | E 10 | E 10 | E 11 | E 10 | E 10 | SSW 9 | SSW 8 |
200 | 336 | 196 | 146 | 198 | 119 | 94 | 32 | 46 | 27 | 43 | 79 | 108 | 94 | 98 | 108 | 161 | 165 | 108 | 75 | |
Swell 3 Height (m) Direction Period (s) | SSW 10 | SW 10 | SW 10 | SE 13 | NE 5 | SE 13 | E 11 | E 5 | SE 12 | E 6 | E 6 | SE 11 | SE 11 | SE 11 | ESE 12 | ESE 10 | SE 12 | SE 12 | SE 11 | SE 11 |
185 | 127 | 108 | 27 | 7 | 27 | 85 | 4 | 23 | 3 | 6 | 20 | 19 | 18 | 47 | 60 | 23 | 49 | 45 | 42 | |
Wind waves Height (m) Direction Period (s) | NE 4 | NE 4 | NE 5 | ENE 6 | NW 2 | — | — | — | E 4 | E 4 | — | — | — | — | — | — | — | — | ESE 5 | — |
7 | 5 | 17 | 53 | 1 | — | — | — | 8 | 5 | — | — | — | — | — | — | — | — | 29 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 16 | 22 | 24 | 0 | 0 | 49 | 16 | 22 | 22 | 0 | 0 | 20 | 0 | 0 | 20 | 0 | 49 | 0 | 0 |
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.











