
Surf Forecasts:
Osaki Point surf forecast from 2 Sep 2026:
- Best quality surf: Thursday 3 Sep, 9AM (local time) - 3.5ft (1.1m), 8s period, S swell with glassy winds.
- Most powerful swell: Sunday 6 Sep, 9PM (local time) - 13ft (4.0m), 11s period, E swell with 3,712 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 9AM (local time) - 3.5ft (1.1m), 8s period with S 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 Thursday (Sep 03) at 9AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.6m and 10s. 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 11s and forecast to arrive on Sunday (Sep 06) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Wednesday (Sep 09) at 6PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Thu 3rd Sep) | 3.5ft (1.1m) 8s |
| Best Surf | 9AM (Thu 3rd Sep) | 3.5ft (1.1m) 8s |
| Most Powerful | 9PM (Sun 6th Sep) | 13ft (4.0m) 11s |
Table - best surf conditions forecast for Osaki Point over the next 16 days.
The Lowdown
G'day, Rusty here. Let's have a look at what's coming up for Osaki Point.
Right from the off, it's a rough start. The first solid look we get is Thursday the 3rd, and honestly, it's not worth paddling out for. We've got a small 4ft SSE swell with a short, weak 8-second period (combined energy 274), and the wind is a light cross-onshore. It's marginal at best. The whole first week is a write-off. From Thursday the 3rd right through to Monday the 7th, we've got a mix of rain, storms, and strengthening onshore winds that just trash the waves. The swell builds but the quality is zero. On Saturday the 5th, it's 7ft–8ft of messy E swell with strong cross-onshore winds—that's just not fun. Sunday the 6th sees the swell push up to 8ft, but it's rain-lashed and onshore. By Monday the 7th, we're still in the gutter with 6ft–7ft of short-period chop.
There's a bit of a shift from Tuesday the 8th. The swell really fires up, hitting 10ft on Tuesday morning and pushing to 12ft by the afternoon. This is big, powerful SE swell with 10-second period and very strong combined energy (1996). The wind goes light, but it's onshore and the conditions are still messy. This is expert-only territory due to the size, and the quality is questionable. Wednesday the 9th sees the swell hold at 10ft from the SE, with the period stretching out to 11 seconds and the energy hitting 2017. The wind is light cross-onshore in the morning. It's still big and heavy, but there's a glimmer of potential for someone who knows what they're doing. It's not what I'd call a standout day for the average surfer.
After that, it fades again. Thursday the 10th drops back to 6ft, and from then until the 16th, it's mostly small, weak, and poor. A lot of days are a total blank.
Then, hold onto your board. The real standout is Thursday the 17th. We've got a 2ft swell, sure, but look at that period: 16 seconds. That's very long-period groundswell, and the combined energy is still a solid 665. The wind goes glassy in the morning—absolutely dead calm. For a reef-and-beach setup like Osaki Point, that long period could produce some beautifully shaped, clean lines, especially if it wraps in. This is the best morning of the entire outlook. Because the tide conditions are flagged, you'll need to pick your time, but if you can, this is the one. The following morning, Friday the 18th, has a bigger 7ft SE swell with a 12-second period (combined energy 2442) and light cross-onshore winds. It's big and could be unruly for many, but for an experienced surfer, it's worth a look.
If you're a beginner, stay well clear of anything over 5ft, and the stuff over 8ft is for experts only. The crowds at Osaki Point can be a factor sometimes, so keep that in mind for that glassy Thursday morning.
Water temperature is about average for this time of year.
Sorry for the bleak first week, but that Thursday the 17th looks pure magic. Set the alarm.
Rusty.
Short Range ForecastHeavy rain (total 86mm), heaviest during Fri afternoon. Warm (max 29°C on Thu afternoon, min 22°C on Fri afternoon). Winds increasing (calm on Thu morning, fresh winds from the NE by Fri afternoon). | Days 4-6 Weather SummaryHeavy rain (total 87mm), heaviest during Tue afternoon. Warm (max 26°C on Tue morning, min 23°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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) | S 8 | SSE 10 | S 10 | S 11 | S 10 | S 9 | E 8 | E 8 | E 8 | E 8 | E 10 | E 11 | E 9 | ENE 9 | SE 9 | ESE 10 | SE 10 | SSE 10 | SSE 10 | SSE 10 | SE 9 |
Wave Graph | |||||||||||||||||||||
169 | 349 | 509 | 639 | 494 | 220 | 301 | 273 | 408 | 1251 | 2267 | 3016 | 1075 | 724 | 397 | 741 | 1178 | 1762 | 3467 | 1563 | 599 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | cross-on | cross-on | on | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 9:51AM1.47m | 9:03PM1.65m | 11:17AM1.34m | 9:44PM1.55m | 1:51PM1.33m | 11:02PM1.45m | 3:35PM1.46m | 1:18AM1.44m | 4:20PM1.58m | 2:55AM1.54m | 4:53PM1.68m | 3:59AM1.68m | 5:22PM1.76m | ||||||||
Low Tide | 3:07PM0.93m | 4:14AM0.42m | 3:51PM1.11m | 5:38AM0.48m | 5:36PM1.26m | 7:29AM0.46m | 8:35PM1.23m | 8:56AM0.35m | 9:46PM1.08m | 9:56AM0.24m | 10:29PM0.91m | 10:42AM0.17m | 11:05PM0.73m | ||||||||
5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | |
— | 6:27 | — | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — | |
mm | 3 | 2 | 1 | 15 | 49 | 14 | — | — | 2 | 3 | 5 | 16 | 9 | 4 | 4 | 2 | 28 | 16 | 3 | 2 | 13 |
Temp °C | 28 | 29 | 26 | 24 | 22 | 23 | 27 | 27 | 25 | 24 | 24 | 24 | 25 | 25 | 24 | 26 | 25 | 25 | 27 | 27 | 28 |
Feels °C | 34 | 34 | 28 | 23 | 19 | 23 | 25 | 24 | 23 | 24 | 23 | 24 | 25 | 26 | 25 | 27 | 25 | 25 | 30 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | S 8 | SSE 10 | S 10 | S 11 | S 10 | S 9 | S 8 | S 8 | SSW 8 | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SE 8 | SE 9 | ESE 10 | SE 10 | SSE 10 | E 18 | SSE 10 | SE 9 |
169 | 349 | 509 | 639 | 494 | 220 | 58 | 113 | 72 | 75 | 47 | 47 | 72 | 59 | 397 | 741 | 1178 | 1762 | 6 | 1563 | 599 | |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | SE 9 | SE 9 | SSW 9 | E 13 | E 13 | — | — | — | — | SSW 9 | E 10 | S 10 | — | E 19 | — | E 18 | E 16 |
73 | 73 | 48 | 30 | 13 | 3 | 52 | 3 | 3 | — | — | — | — | 66 | 148 | 88 | — | 7 | — | 6 | 21 | |
Swell 3 Height (m) Direction Period (s) | E 5 | SE 10 | SE 10 | — | — | E 14 | E 14 | — | — | — | — | — | — | S 11 | S 11 | S 11 | — | — | — | — | — |
10 | 15 | 15 | — | — | 4 | 4 | — | — | — | — | — | — | 2 | 82 | 9 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 4 | NE 6 | E 7 | E 8 | E 8 | E 8 | E 8 | E 10 | E 11 | E 9 | ENE 9 | NE 5 | NE 5 | NE 4 | — | SSE 10 | WSW 7 | NE 3 |
— | — | — | 28 | 209 | 178 | 301 | 273 | 408 | 1251 | 2267 | 3016 | 1075 | 724 | 32 | 26 | 17 | — | 3467 | 234 | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 16 | 22 | 22 | 22 | 42 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 260 | 42 | 22 | 22 | 22 | 22 | 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.










