
Surf Forecasts:
Osaki Point surf forecast from 7 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 9AM (local time) - 7ft (2.2m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 12AM (local time) - 10ft (3.0m), 9s period, SSE swell with 1,635 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 9AM (local time) - 7ft (2.2m), 9s period with SSE 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 (Sep 09) at 9AM. The primary swell is predicted to be 2.2m and 9s period. 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 3.0m 9s and forecast to arrive on Wednesday (Sep 09) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Thursday (Sep 10) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Wed 9th Sep) | 7ft (2.2m) 9s |
| Best Surf | 9AM (Wed 9th Sep) | 7ft (2.2m) 9s |
| Most Powerful | 12AM (Wed 9th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Osaki Point over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s look at Osaki Point in feet and miles per hour.
Right now, and into Monday the 7th, the wind is howling out of the northeast at 12–16 mph, cross-on or onshore, and the swell is around 6 ft from the southeast with a period of 9 seconds. The combined energy is moderate at 751, but it’s messy—light rain and choppy conditions mean it’s a write-off. Water temp is sitting at 84°, which is a touch warmer than normal for this time of year.
Tuesday the 8th doesn’t get much better: onshore winds, swell dropping to 5–5 ft, and the risk of thunderstorms.
The first real flicker of hope shows up Wednesday morning the 9th. Swell bumps up to 7 ft from the SSE, period a short 8 seconds, but the wind swings west at 9 mph—cross-offshore. That’s going to clean things up nicely, and the combined energy is moderate at 563. The break is a beach and reef setup, exposed to that SSE swell, and it’s consistent. Conditions are clean, and the forecast points to some very good surf. This is one of the better windows early on, but that 7 ft might be a bit much for beginners. Wednesday afternoon turns poor again.
Thursday the 10th through Saturday the 12th sees the swell drop right off—down to 2–3 ft with periods as low as 7 seconds and weak energy readings (95–239). There’s a brief glassy moment on Friday afternoon the 11th with tiny 2 ft waves from the SSE, but it’s ordinary.
A real standout pops up on Wednesday the 16th. Morning brings a 6 ft swell from the ESE, period a short 7 seconds, but the wind is dead calm—glassy conditions. The combined energy is moderate at 419, and the forecast points to good surf. That afternoon the wind goes southwest at 9 mph, cross-offshore, keeping it clean with 6 ft waves. This is your best bet in the first week and a half: clean, consistent, and that offshore wind will make Osaki Point shape up nicely. Crowds are possible here sometimes.
After that, we hit another quiet patch. Thursday the 17th and Friday the 18th have small, weak waves. The 19th has glassy moments but tiny 2 ft surf.
Now, hold onto your board. The second week has a massive pulse on the horizon. Monday the 21st brings a 4 ft swell from the ESE with a very long period of 21 seconds and strong energy at 2552. That’s groundswell, best on the reef. Winds are light onshore.
Then Tuesday the 22nd is the real beast. Morning shows a 10 ft swell from the ESE with a period of 19 seconds and very strong energy at 6917. That’s big, long-period groundswell—experts only. Wind is light onshore again. The forecast score is the highest of the whole run, suggesting something special, but it’s a week and a half out.
Overall, the standout is Wednesday the 16th for clean, surfable waves. The big one on the 22nd is the dream, but it’s a gamble.
Rusty.
Short Range ForecastHeavy rain (total 58mm), heaviest during Tue night. Warm (max 27°C on Mon afternoon, min 24°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Thu afternoon. Warm (max 27°C on Sat morning, min 23°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | ESE 9 | SE 9 | S 10 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 8 | SE 8 | NE 6 | SE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | E 14 | E 14 | E 14 | E 13 | ESE 13 | ESE 9 |
Wave Graph | |||||||||||||||||||||
490 | 486 | 242 | 332 | 382 | 1635 | 759 | 390 | 151 | 106 | 164 | 107 | 81 | 94 | 66 | 89 | 89 | 192 | 85 | 312 | 161 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | on | on | on | cross-off | cross-on | cross-on | cross-on | cross-on | on | glassy | glassy | on | cross-on | cross | glassy | on | cross-on | cross-on |
High Tide | 4:20PM1.58m | 2:55AM1.54m | 4:53PM1.68m | 3:59AM1.68m | 5:22PM1.76m | 4:50AM1.80m | 5:48PM1.81m | 5:34AM1.87m | 6:14PM1.84m | 6:15AM1.89m | 6:38PM1.84m | 6:54AM1.86m | 7:00PM1.83m | ||||||||
Low Tide | 9:46PM1.08m | 9:56AM0.24m | 10:29PM0.91m | 10:42AM0.17m | 11:05PM0.73m | 11:21AM0.16m | 11:39PM0.57m | 11:56AM0.20m | 00:12AM0.43m | 12:28PM0.29m | 00:44AM0.34m | 12:58PM0.42m | 1:15AM0.29m | ||||||||
5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | |
— | 6:21 | — | — | 6:20 | — | — | 6:19 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:13 | — | |
mm | 7 | 1 | — | 3 | 2 | 31 | 12 | 1 | 1 | 1 | 5 | 2 | 2 | 3 | 1 | — | — | 1 | — | — | — |
Temp °C | 25 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 24 | 23 | 24 | 26 | 26 | 25 | 27 | 27 | 26 | 27 | 28 | 25 |
Feels °C | 26 | 28 | 27 | 28 | 29 | 31 | 31 | 30 | 28 | 24 | 24 | 28 | 31 | 31 | 29 | 32 | 32 | 31 | 31 | 32 | 29 |
Swell 1 Height (m) Direction Period (s) | ESE 9 | SE 9 | SE 8 | S 9 | S 9 | SSE 9 | SSE 9 | SSE 8 | SE 8 | SSE 9 | SE 8 | SSE 8 | SSE 7 | SSE 7 | SSE 7 | S 7 | S 7 | E 14 | ESE 9 | ESE 13 | ESE 9 |
490 | 486 | 224 | 332 | 382 | 1079 | 759 | 390 | 151 | 106 | 164 | 107 | 81 | 94 | 66 | 47 | 48 | 192 | 45 | 312 | 161 | |
Swell 2 Height (m) Direction Period (s) | SSE 9 | S 11 | S 10 | SE 8 | ESE 10 | E 19 | NNE 4 | E 18 | SSW 8 | SE 8 | E 15 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | S 7 | E 13 | S 11 | S 10 |
115 | 37 | 242 | 147 | 40 | 7 | 3 | 6 | 23 | 35 | 18 | 38 | 68 | 60 | 63 | 89 | 89 | 23 | 85 | 114 | 130 | |
Swell 3 Height (m) Direction Period (s) | SSW 9 | SSW 10 | SSW 9 | SE 10 | ESE 10 | — | E 18 | W 6 | E 16 | SSW 8 | E 18 | ESE 11 | SSW 8 | ESE 10 | SE 10 | ESE 10 | ESE 4 | S 8 | S 7 | S 7 | E 13 |
7 | 38 | 76 | 28 | 39 | — | 6 | 1 | 21 | 14 | 6 | 12 | 11 | 19 | 23 | 19 | 6 | 10 | 23 | 15 | 82 | |
Wind waves Height (m) Direction Period (s) | NNE 5 | ENE 5 | NE 5 | NE 4 | ESE 8 | SSE 9 | — | NE 3 | NE 6 | NE 6 | NE 5 | E 6 | ENE 7 | ENE 4 | ENE 6 | E 5 | — | — | — | — | — |
51 | 69 | 51 | 21 | 207 | 1635 | — | 7 | 161 | 103 | 29 | 64 | 79 | 18 | 7 | 18 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 22 | 22 | 22 | 22 | 22 | 0 | 16 | 16 | 22 | 22 | 16 | 0 | 0 | 16 | 16 | 20 | 0 | 16 | 49 | 16 |
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.










