
Surf Forecasts:
Osaki Point surf forecast from 28 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 12AM (local time) - 13ft (4.0m), 18s period, ESE swell with glassy winds.
- Most powerful swell: Wednesday 5 Aug, 3AM (local time) - 13ft (4.0m), 18s period, ESE swell with 10,253 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 12AM (local time) - 2ft (0.6m), 10s period with ESE 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 (Jul 29) at 12AM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 1.0m and 6s. 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 4.0m 18s and forecast to arrive on Wednesday (Aug 05) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Wednesday (Jul 29) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 29th Jul) | 2ft (0.6m) 10s |
| Best Surf | 12AM (Wed 5th Aug) | 13ft (4.0m) 18s |
| Most Powerful | 3AM (Wed 5th Aug) | 13ft (4.0m) 18s |
Table - best surf conditions forecast for Osaki Point over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what’s on the cards for Osaki Point.
Right off the bat, we’ve got a stretch of tiny, ordinary surf to kick things off. From Wednesday the 29th through to Saturday the 1st of August, it’s pretty flat with wave heights hanging around 1.0 to 2 feet. The combined energy is weak, sitting between 30 and 88. We get some glassy and clean windows, but there’s just not enough juice to get excited about.
We then run into a week-long rough patch from Sunday the 2nd of August onwards. The swell starts to build, but it comes with cross-onshore winds, making conditions pretty messy. By Monday the 3rd, we’re looking at 5 to 6 foot swell from the ESE with a long 16 to 17-second period, and the energy jumps right up (1365 to 1962). But the wind is all wrong—it’s a light cross-onshore and the forecast flags it as marginal at best. The swell keeps rising through the week, hitting a massive 16 to 18 feet by Wednesday the 5th and 28 to 39 feet on Thursday the 6th. Wind speeds hit gale force (31 to 40 mph) and it’s straight onshore or cross-onshore. The combined energy goes ballistic, reading 21153 on Wednesday afternoon and hitting a gigantic 144984 on Thursday afternoon. Honestly, this isn't paddle surfing—this is big, dangerous, blown-out chaos. It’s going to be too big for anyone but the most seasoned big-wave chargers, and even for them the wind is just awful. This setup looks more interesting for kite surfing than a traditional paddle session.
The surf finally settles down by the second weekend. Saturday the 8th of August brings cleaner conditions with cross-offshore winds and dropping swell—still a solid 10 to 13 feet from the SSW, with moderate energy (1602 to 2942). It’s still big, but there’s a little more hope for the experts. By Sunday the 9th, it drops further to 4 to 4 feet with a longer 13-second ESE period, holding clean cross-offshore wind. The energy is moderate (764 to 1360). Nothing special, but surfable.
Now for the real standout. Monday the 10th of August looks like the best of the bunch. We’ve got a clean 4 foot swell from the east, a 13 to 14-second period, and light offshore to cross-offshore southwesterly winds. Combined energy reads a solid 899 to 845. Conditions are flagged as “expect very good surf conditions.” That’s your window for a clean, fun session with some decent shape. The water temp? We don’t have a specific reading here, but given that there’s no anomaly noted, it’s about average for the time of year—nothing crazy.
Tuesday the 11th and Wednesday the 12th offer smaller but still clean windows: 3 to 5 foot swell with glassy or clean conditions, though the period drops to 7 or 8 seconds by Tuesday afternoon and Wednesday, so the waves will be a bit weaker and mushier for beach breaks. Osaki Point is a beach and reef setup though, so the longer-period groundswell we saw earlier in the week is better suited here—the shape will hold up better on the reef than on the beach. But the wind is clean, and the energy is moderate (390 to 579).
Crowds at Osaki Point can be an issue sometimes, so keep that in mind if you’re heading out.
So to sum it up: the first few days are flat, the middle of the run is huge and windy, and the tail end of the second week—especially Monday the 10th—is the one to pencil in.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 32°C on Thu afternoon, min 28°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Sun afternoon. Warm (max 31°C on Sat morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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) | SSW 6 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | SE 9 | SE 9 | SE 9 | SE 10 | SE 10 | SE 11 | ESE 16 | ESE 16 | ESE 15 | ESE 16 | ESE 17 | ESE 18 |
Wave Graph | |||||||||||||||||||
65 | 48 | 38 | 38 | 36 | 35 | 35 | 23 | 21 | 23 | 27 | 28 | 41 | 201 | 457 | 619 | 1310 | 1893 | 3135 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | off | glassy | glassy | cross-off | cross | cross-on | cross-on | cross-off | glassy | cross | glassy | on | cross-on | on | cross-on | cross-on | cross-on |
High Tide | 5:11AM1.68m | 6:46PM1.68m | 5:48AM1.74m | 7:12PM1.72m | 6:24AM1.77m | 7:36PM1.74m | 7:00AM1.77m | 8:00PM1.74m | 7:38AM1.73m | 8:25PM1.74m | 8:18AM1.67m | 8:51PM1.72m | |||||||
Low Tide | 11:43PM0.96m | 12:01PM0.17m | 00:14AM0.89m | 12:32PM0.15m | 00:44AM0.81m | 1:02PM0.16m | 1:16AM0.74m | 1:31PM0.22m | 1:48AM0.67m | 2:01PM0.31m | 2:23AM0.61m | 2:31PM0.44m | |||||||
— | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | |
7:06 | — | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 1 | — |
Temp °C | 30 | 31 | 30 | 29 | 31 | 32 | 29 | 31 | 31 | 28 | 31 | 31 | 29 | 30 | 30 | 28 | 28 | 28 | 27 |
Feels °C | 34 | 35 | 35 | 33 | 34 | 35 | 33 | 34 | 35 | 32 | 34 | 35 | 33 | 34 | 34 | 33 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | SSW 5 | ESE 10 | SW 5 | ESE 10 | ESE 9 | SW 5 | SW 4 | SW 6 | SE 9 | SE 10 | SE 10 | SE 11 | ESE 16 | ESE 16 | ESE 15 | ESE 16 | ESE 17 | ESE 18 |
63 | 19 | 38 | 23 | 36 | 35 | 11 | 5 | 9 | 23 | 27 | 28 | 30 | 201 | 457 | 619 | 1310 | 1893 | 3135 | |
Swell 2 Height (m) Direction Period (s) | ESE 10 | SE 10 | SSW 8 | ESE 10 | SSW 5 | SW 6 | ESE 9 | SE 9 | SE 9 | SE 11 | SSW 4 | ENE 3 | ESE 14 | SE 8 | SE 9 | SE 10 | SE 10 | E 15 | — |
65 | 48 | 20 | 38 | 8 | 8 | 35 | 22 | 21 | 20 | 2 | 1 | 41 | 18 | 14 | 17 | 15 | 17 | — | |
Swell 3 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SE 13 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SE 12 | NE 4 | SSW 5 | S 7 | ESE 16 | E 11 | SE 11 | SSW 8 | E 16 | S 8 | S 8 | — |
22 | 21 | 26 | 11 | 11 | 11 | 10 | 23 | 2 | 2 | 1 | 24 | 9 | 19 | 7 | 19 | 5 | 4 | — | |
Wind waves Height (m) Direction Period (s) | W 5 | — | SW 6 | — | — | SW 5 | — | — | — | — | NNE 3 | — | — | E 4 | ESE 3 | E 4 | ESE 5 | ESE 5 | ESE 6 |
32 | — | 19 | — | — | 8 | — | — | — | — | 1 | — | — | 2 | 2 | 9 | 35 | 48 | 66 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 16 | 598 | 656 | 582 | 16 | 0 | 22 | 49 | 16 | 22 | 49 | 22 |
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.










