Surf Forecasts:
Ohara surf forecast from 12 Aug 2026:
- Best quality surf: Friday 14 Aug, 12AM (local time) - 5ft (1.6m), 10s period, E swell with cross-offshore winds.
- Most powerful swell: Saturday 15 Aug, 3AM (local time) - 6ft (1.9m), 10s period, E swell with 668 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 12AM (local time) - 5ft (1.6m), 10s period with E swell.
Best Forecast Surf Conditions for Ohara this week:
The surf forecast for Ohara over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 14) at 12AM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.4m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ohara in the next 16 days are 1.9m 10s and forecast to arrive on Saturday (Aug 15) 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 0.3m 2s period and expected on Wednesday (Aug 19) at 3PM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 14th Aug) | 5ft (1.6m) 10s |
| Best Surf | 12AM (Fri 14th Aug) | 5ft (1.6m) 10s |
| Most Powerful | 3AM (Sat 15th Aug) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Alright, Rusty here, let's talk about what's coming up at Ohara.
First off, the good news is that there's a little bit of surf on the horizon eventually, but we've got a long, quiet slog to get through first. The early part of the window is a bit of a write-off, so don't bother checking the cams for a while. The first real window of opportunity for a proper surf isn't until the end of the first week, but more on that later.
Let's start with what's on offer now. The outlook from Thursday the 13th through to the middle of the next week is pretty average. The wind is the main problem, mostly cross or cross-onshore, which means lumpy, choppy conditions. The swell is there, hanging around 4 to 6 feet from the east, with moderate energy, but it's just not clean. There's a slight improvement on Tuesday afternoon the 18th when the wind swings to a light cross-offshore, making things clean, but the swell drops to 4 feet, so it's not exactly a standout. That's the best of the early period, but it's still a bit of a second-tier option.
The real standout, the one that's got me a little excited, is further out. Look at Tuesday the 25th of August. We've got a big, solid pulse of swell coming in from the SSE, with a very long period of 17 seconds. That's a proper groundswell, and the energy is massive. The wind is a light cross-offshore, meaning the surface will be clean. However, there's a big caveat here. The swell is predicted to be 11 feet, and at Ohara, that's too big for this break. It's going to be a heavy, powerful, and potentially dangerous wave. This is strictly for experts only, and even then, you'll want to be very careful. The long period will also mean long waits between sets, but the energy in the water will be something else. For the next few days after that, the swell drops back to a more manageable 4 to 6 feet, with clean conditions returning on the 27th and 28th, but it's a step down in quality.
Overall, the water temp is about average for the time of year, nothing to write home about. The first week is a grind, but that pulse on the 25th is a real promise if you're experienced enough to handle it. Keep an eye on the long-range charts, because that one could be a special session, but it's a long way out.
Rusty.
Short Range ForecastHeavy rain (total 33mm), heaviest during Thu night. Warm (max 27°C on Thu morning, min 24°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sat night. Warm (max 26°C on Sun morning, min 23°C on Sat night). Wind will be generally light. | ||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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 10 | E 10 | E 10 | E 10 | E 9 | E 10 | ESE 9 | E 10 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 10 | E 9 | E 9 | E 9 | E 9 |
Wave Graph | |||||||||||||||||||
318 | 382 | 417 | 500 | 520 | 450 | 459 | 600 | 471 | 377 | 449 | 565 | 517 | 528 | 492 | 325 | 234 | 229 | 153 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-off | on | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off |
High Tide | 3:41AM1.48m | 5:34PM1.37m | 4:31AM1.49m | 5:55PM1.38m | 5:18AM1.46m | 6:15PM1.39m | 6:04AM1.38m | 6:35PM1.39m | 6:49AM1.29m | 6:55PM1.40m | 7:36AM1.17m | 7:14PM1.39m | |||||||
Low Tide | 10:16PM0.88m | 10:46AM0.04m | 10:53PM0.75m | 11:21AM0.12m | 11:31PM0.63m | 11:52AM0.24m | 00:09AM0.53m | 12:20PM0.38m | 00:47AM0.46m | 12:44PM0.53m | 1:27AM0.43m | 1:05PM0.67m | 2:11AM0.43m | ||||||
— | 4:54 | — | — | 4:56 | — | — | 4:56 | — | — | 4:56 | — | — | 4:58 | — | — | 4:58 | — | — | |
6:30 | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:27 | — | — | 6:25 | — | — | 6:23 | — | |
mm | — | 1 | 1 | 18 | 1 | 2 | 10 | — | — | 1 | — | — | — | 2 | — | — | — | — | — |
Temp °C | 25 | 27 | 27 | 26 | 26 | 27 | 25 | 27 | 27 | 25 | 26 | 26 | 24 | 25 | 26 | 24 | 26 | 26 | 25 |
Feels °C | 28 | 28 | 29 | 29 | 28 | 30 | 27 | 27 | 27 | 26 | 25 | 25 | 24 | 27 | 27 | 25 | 28 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | S 10 | ESE 9 | ESE 9 | E 10 | E 9 | S 9 | ESE 9 | ESE 9 | ESE 10 | E 9 | E 9 | E 9 | E 9 |
318 | 382 | 417 | 500 | 520 | 450 | 70 | 442 | 471 | 377 | 449 | 43 | 517 | 528 | 492 | 325 | 234 | 229 | 153 | |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | SSW 9 | SSW 9 | S 9 | S 12 | S 11 | S 11 | SE 9 | S 10 | SE 17 | S 9 | S 8 | SSW 9 | SE 10 | SE 10 | SE 10 | SE 10 |
51 | 71 | 48 | 28 | 28 | 41 | 26 | 65 | 79 | 83 | 45 | 11 | 25 | 22 | 15 | 28 | 28 | 27 | 34 | |
Swell 3 Height (m) Direction Period (s) | S 5 | — | SE 12 | S 12 | SE 11 | SSE 11 | SE 13 | SSE 10 | SSE 13 | S 9 | SE 12 | SE 17 | — | SE 16 | SE 8 | SSW 8 | SSW 8 | S 8 | SSE 8 |
12 | — | 6 | 11 | 30 | 24 | 7 | 30 | 16 | 43 | 6 | 11 | — | 10 | 2 | 14 | 13 | 10 | 25 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | E 9 | E 10 | — | — | E 8 | E 9 | — | — | — | — | — | — | — |
— | — | — | — | — | — | 459 | 600 | — | — | 368 | 565 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 9 | 9 | 8 | 0 | 6 | 9 | 8 | 72 | 72 | 21 | 58 | 94 | 24 | 58 | 9 | 9 | 9 | 0 | 0 |
Best forecast wave conditions in Chiba | |||||||||||||||||||
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 Ohara Surf forecast
The above surf forecast table for Ohara provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ohara can be found by selecting the local surf guide option on the grey menu. Our Ohara 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 (Ohara) 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 Ohara 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.
Ohara is 2 km (1 miles) from Ohara. If you plan a holiday in Chiba, look for hotels and other accommodation in Ohara. Ohara has rooms for a wide range of budgets as well as car hire and transport links.











