
Surf Forecasts:
Osaki Point surf forecast from 18 Jul 2026:
- Best quality surf: Sunday 19 Jul, 3AM (local time) - 1.5ft (0.5m), 9s period, E swell with glassy winds.
- Most powerful swell: Saturday 25 Jul, 3AM (local time) - 1.5ft (0.4m), 16s period, SE swell with 94 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 3AM (local time) - 1.5ft (0.5m), 9s 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 Sunday (Jul 19) at 3AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.3m 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 0.4m 16s and forecast to arrive on Saturday (Jul 25) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 5s period and expected on Monday (Jul 20) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 19th Jul) | 1.5ft (0.5m) 9s |
| Best Surf | 3AM (Sun 19th Jul) | 1.5ft (0.5m) 9s |
| Most Powerful | 3AM (Sat 25th Jul) | 1.5ft (0.4m) 16s |
Table - best surf conditions forecast for Osaki Point over the next 16 days.
The Lowdown
G’day, Rusty here, and I’ve got a look at the surf ahead for Osaki Point.
Alright, let’s be straight up—this stretch coming up is a real slow burn. We’ve got a long patch of pretty ordinary conditions before anything worth getting excited about turns up. The next week or so is all small, weak surf, and you’ll be scratching around for scraps. The real action, and I mean *real* action, doesn’t show until the very end of July and into August.
For the first few days, from Saturday the 18th through to the end of the week, it’s a flat spell. Swell heights are hanging around 1 ft to 2 ft from the east-southeast, with combined energy readings in the 30s to 80s—that’s weak, barely any push. Winds are mostly light and variable, with some glassy mornings, but the waves are just too small to get stoked about. The water temperature is sitting at 82°F, which is pretty normal for this time of year, so no surprises there.
Sunday the 26th stays small, but there’s a hint of something better brewing. The real standout window opens up on Monday the 27th of July. That morning, the swell jumps to 4 ft from the southeast, with a period of 16 seconds—that’s a proper groundswell, long and clean. Combined energy is a solid 1238, and we’ve got glassy conditions with a light easterly breeze. This is your best bet for the whole forecast: clean, lined-up sets, not too big, just right for an experienced surfer. The afternoon gets a bit bigger at 7 ft, but it’s a little crossed up, so the morning is the pick.
Now, hold on to your board—because after that, things get wild. On Tuesday the 28th, the swell cranks up to 12 ft in the morning, then 16 ft in the afternoon. By Wednesday the 29th, we’re looking at 20 ft to 25 ft from the southeast. The combined energy numbers go through the roof—4557, then 13568, then 19720 and 35581—that’s massive, powerful swell. But here’s the catch: this is way too big for most surfers. Over 8 ft is expert-only territory, and with onshore winds picking up, it’s a messy, dangerous beast. This is more for the tow-in crew or the kamikaze types. The swell keeps building through Thursday the 30th, hitting 39 ft to 44 ft with gusty cross-onshore winds—this is big-wave territory, not a paddle session.
By Friday the 31st, the swell drops back to 20 ft from the southwest, but the wind is howling at 37 mph, so it’s blown out. Then, as we roll into August, things settle down. Saturday the 1st of August brings a cleaner outlook: 5 ft in the morning, dropping to 5 ft in the afternoon, with offshore winds from the southwest. Combined energy is a moderate 480 to 407, and conditions should be clean. It’s a good option for a more relaxed session, but not the standout.
So, in summary: the first week is a write-off. The best on offer is Monday morning the 27th of July at Osaki Point—4 ft of long-period southeast swell with glassy winds. That’s the one to circle. The huge swell later in the week is for experts only, and the beginning of August offers a decent, clean backup.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 30°C on Mon afternoon, min 26°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Tue morning. Warm (max 31°C on Thu afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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) | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | ESE 9 | E 9 | E 11 | ESE 8 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | SE 18 | SE 18 | SE 18 | SE 16 |
Wave Graph | |||||||||||||||||||||
38 | 38 | 41 | 41 | 44 | 64 | 60 | 65 | 60 | 57 | 22 | 55 | 33 | 31 | 18 | 18 | 18 | 50 | 49 | 49 | 42 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | glassy | cross-off | glassy | cross-off | cross-off | off | glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off |
High Tide | 9:09PM1.72m | 8:53AM1.63m | 9:40PM1.67m | 9:45AM1.49m | 10:10PM1.61m | 10:47AM1.35m | 10:42PM1.55m | 12:12PM1.25m | 11:21PM1.49m | 2:13PM1.24m | 00:16AM1.44m | 3:57PM1.32m | 1:31AM1.43m | ||||||||
Low Tide | 2:36PM0.25m | 3:03AM0.69m | 3:12PM0.45m | 3:49AM0.67m | 3:46PM0.65m | 4:41AM0.66m | 4:21PM0.84m | 5:41AM0.66m | 5:03PM1.01m | 6:54AM0.64m | 6:14PM1.14m | 8:12AM0.59m | 8:14PM1.20m | ||||||||
5:05 | — | — | 5:05 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | |
— | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | |
mm | — | — | 1 | — | — | — | — | — | — | 1 | 2 | — | — | 2 | — | — | 1 | 1 | — | 1 | 2 |
Temp °C | 29 | 29 | 28 | 29 | 29 | 27 | 29 | 30 | 27 | 29 | 30 | 27 | 29 | 30 | 27 | 30 | 31 | 28 | 30 | 30 | 27 |
Feels °C | 34 | 34 | 34 | 33 | 33 | 32 | 34 | 34 | 31 | 35 | 34 | 32 | 35 | 35 | 31 | 34 | 35 | 33 | 35 | 34 | 32 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 10 | E 9 | E 9 | ESE 9 | E 9 | E 11 | ESE 8 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SE 9 | E 4 | SE 11 |
38 | 38 | 41 | 41 | 44 | 64 | 60 | 65 | 60 | 57 | 22 | 55 | 33 | 31 | 18 | 18 | 18 | 17 | 14 | 9 | 42 | |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | SE 8 | ESE 5 | ESE 5 | SE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | ESE 10 | ESE 10 | ESE 11 | ESE 11 | SW 7 | SE 9 | SE 10 | SE 10 | E 10 | E 10 | E 9 |
10 | 10 | 11 | 9 | 9 | 20 | 7 | 14 | 7 | 7 | 20 | 11 | 11 | 11 | 2 | 14 | 15 | 16 | 17 | 16 | 26 | |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 8 | SSW 6 | SE 8 | SSW 6 | SSW 5 | ESE 12 | ESE 11 | S 3 | SSW 8 | SSE 8 | SSW 8 | SSE 8 | SSE 8 | ESE 10 | SW 7 | S 8 | SE 18 | SE 18 | SE 18 | SE 16 |
13 | 11 | 7 | 9 | 3 | 3 | 13 | 13 | 1 | 6 | 6 | 6 | 6 | 6 | 11 | 2 | 5 | 50 | 49 | 49 | 42 | |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | ESE 3 | — | — | SW 5 | S 3 | SSW 7 | SSW 3 | — | — | — | — | — | — | — | — | — | ESE 3 | — | — |
— | 2 | 1 | — | — | 5 | 1 | 5 | 2 | — | — | — | — | — | — | — | — | — | 1 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 51 | 324 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 324 | 0 | 0 | 609 | 264 | 264 | 937 | 0 | 0 | 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.










