
Surf Forecasts:
Osaki Point surf forecast from 31 Jul 2026:
- Best quality surf: Wednesday 5 Aug, 9AM (local time) - 16ft (5.0m), 17s period, ESE swell with onshore winds.
- Most powerful swell: Thursday 6 Aug, 6AM (local time) - 26ft (8.0m), 18s period, SE swell with 40,495 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 6PM (local time) - 1.5ft (0.4m), 11s 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 Saturday (Aug 01) at 6PM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.4m and 6s. 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 8.0m 18s and forecast to arrive on Thursday (Aug 06) at 6AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sat 1st Aug) | 1.5ft (0.4m) 11s |
| Best Surf | 9AM (Wed 5th Aug) | 16ft (5.0m) 17s |
| Most Powerful | 6AM (Thu 6th Aug) | 26ft (8.0m) 18s |
Table - best surf conditions forecast for Osaki Point over the next 16 days.
The Lowdown
Alright, let’s break it down for Osaki Point. The water’s 85°, which is a touch warmer than average for this time of year, so that’s a nice little bonus when you’re in the water.
We’re starting off slow. Friday the 31st of July is just small, with a 1ft swell from the SE, period of 12 seconds, and a light cross-offshore breeze. The energy is weak (54 units), so it’s barely a ripple. Saturday the 1st of August is even worse – small, cross-onshore, and choppy. Not worth paddling out.
Now, Sunday the 2nd of August is where it gets interesting. The morning brings a glassy 2ft swell from the ESE, but the period jumps to 18 seconds – that’s a proper groundswell, and the energy is moderate (393 units). The wind is glassy, so it’ll be clean. The afternoon gets even better: 4ft from the ESE, period still 16 seconds, and the wind is light cross-offshore. The energy jumps to 704 units, and conditions are looking clean. This is a solid window for the intermediate surfer. The long period will mean longer lulls between sets, but the shape should be good for the point.
Monday the 3rd of August sees the swell push up to 5ft in the morning, but it’s onshore at 9 mph, so it’s pretty messy. The afternoon is 6ft with a cross-onshore wind and a risk of thunderstorms. The energy is strong (2190 units), but the wind is ruining it. Not the best.
Tuesday the 4th of August has a big jump: 10ft swell in the morning from the ESE at 17 seconds, and the energy is very strong (5287 units). The wind is onshore, making it a bit of a washing machine. The afternoon is 10ft with a 18-second period, energy at 6856 units, and the wind is gentler, cross-onshore. It’s fairly choppy, but for the experts, there might be a few bombs.
Now, from Wednesday the 5th of August through to Friday the 7th of August, the swell goes absolutely nuclear. We’re talking 16ft to 26ft with periods of 17-18 seconds, and energy readings hitting 42,262 units. The wind is onshore, but the problem is the swell is just too big for this break. This is a high-danger zone for most surfers; only the absolute elite with heavy-water experience should even look at it. This setup looks more interesting for kite surfing than paddle surfing.
Saturday the 8th of August is a mess – 13ft on a cross-onshore fresh breeze, lumpy and poor. Sunday the 9th of August drops to 6ft but it’s onshore with moderate rain. Not good.
Here’s the standout: Monday the 10th of August afternoon, and then the whole of Tuesday the 11th of August. Monday afternoon brings a 5ft swell from the E at 13 seconds, with glassy conditions. Energy is moderate (1441 units). Tuesday morning is 6ft, same period, glassy, and the energy is 1424 units. Tuesday afternoon is 5ft, glassy, with a risk of thunderstorms but the wind is glassy. This is a solid run of good, clean, surfable waves for experienced surfers. The swell is solid enough to get you into some nice walls, and the glassy conditions will keep it smooth.
Wednesday the 12th of August is still fun – 4ft in the morning, glassy, and 3ft in the afternoon with a clean cross-offshore breeze. Nice way to round out the run.
After that, Thursday the 13th of August through to Saturday the 15th of August drops off. The swell is small, the wind is onshore or cross-onshore, and there’s rain. The 15th of August has a short period of 7-8 seconds, which is just weak, windswell junk. A poor end to the outlook.
The best on offer? Sunday the 2nd of August afternoon for the clean, building swell, and the Tuesday the 11th of August glassy windows for clean, head-high waves. That’s your pick.
Rusty.
Short Range ForecastMostly dry. Warm (max 32°C on Sun morning, min 27°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Mon afternoon. Warm (max 30°C on Thu morning, min 26°C on Mon night). Winds increasing (light winds from the ENE on Tue night, fresh winds from the ENE by Thu morning). | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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 9 | SE 9 | SE 10 | SE 10 | ESE 16 | ESE 18 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 18 | ESE 17 | ESE 18 | ESE 17 | ESE 17 | SE 18 | SE 18 | SE 18 | SE 17 | SSE 16 |
Wave Graph | ||||||||||||||||||||
24 | 23 | 27 | 28 | 49 | 240 | 671 | 715 | 1343 | 1739 | 3777 | 4868 | 6227 | 12212 | 15304 | 19740 | 31777 | 39591 | 32056 | 23209 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross | cross-off | glassy | cross-off | on | on | cross-on | on | on | cross-on | on | on | on | on | on | on | on |
High Tide | 7:36PM1.74m | 7:00AM1.77m | 8:00PM1.74m | 7:38AM1.73m | 8:25PM1.74m | 8:18AM1.67m | 8:51PM1.72m | 9:03AM1.57m | 9:20PM1.69m | 10:00AM1.46m | 9:53PM1.64m | 11:18AM1.35m | 10:36PM1.58m | |||||||
Low Tide | 1:16AM0.74m | 1:31PM0.22m | 1:48AM0.67m | 2:01PM0.31m | 2:23AM0.61m | 2:31PM0.44m | 3:02AM0.57m | 3:03PM0.60m | 3:48AM0.54m | 3:40PM0.78m | 4:45AM0.52m | 4:27PM0.97m | ||||||||
— | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | |
7:04 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | |
mm | — | — | — | — | — | — | — | — | — | 2 | 3 | — | — | — | — | — | — | — | 1 | 13 |
Temp °C | 31 | 28 | 31 | 31 | 29 | 32 | 32 | 30 | 29 | 28 | 27 | 28 | 28 | 26 | 29 | 29 | 28 | 30 | 30 | 28 |
Feels °C | 35 | 33 | 34 | 35 | 32 | 36 | 36 | 34 | 31 | 31 | 30 | 28 | 30 | 28 | 30 | 30 | 30 | 29 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 5 | SE 10 | SE 10 | ESE 16 | ESE 18 | ESE 16 | ESE 15 | ESE 16 | ESE 16 | ESE 18 | ESE 17 | ESE 18 | ESE 17 | ESE 17 | SE 18 | SE 18 | SE 18 | SE 17 | SSE 16 |
9 | 6 | 27 | 28 | 49 | 240 | 671 | 715 | 1343 | 1739 | 3777 | 4868 | 6227 | 12212 | 15304 | 19740 | 31777 | 39591 | 32056 | 23209 | |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | SSW 4 | SW 6 | SE 11 | ESE 14 | ENE 4 | SE 10 | SSE 10 | E 15 | — | — | — | — | — | — | — | — | — | — |
21 | 23 | 7 | 9 | 19 | 118 | 6 | 15 | 9 | 17 | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 11 | S 7 | ESE 16 | SSW 5 | SE 9 | SE 10 | SSW 8 | S 8 | S 8 | — | — | — | — | — | — | — | — | — | — |
24 | 20 | 1 | 25 | 4 | 20 | 17 | 6 | 5 | 4 | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NE 4 | NE 4 | — | E 6 | E 8 | E 8 | E 8 | ESE 8 | — | — | — | — | E 10 | — | E 10 |
— | — | — | — | — | 15 | 10 | — | 88 | 430 | 463 | 419 | 629 | — | — | — | — | 2671 | — | 234 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 16 | 456 | 393 | 0 | 0 | 0 | 22 | 22 | 22 | 22 | 22 | 22 | 20 | 22 | 49 | 42 | 425 | 483 | 497 |
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.











