
Surf Forecasts:
Ohara surf forecast from 9 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 9PM (local time) - 5.5ft (1.7m), 11s period, E swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 9PM (local time) - 8ft (2.5m), 11s period, ENE swell with 1,489 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 9PM (local time) - 5.5ft (1.7m), 11s 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 Tuesday (Aug 11) at 9PM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.6m and 10s. 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 2.5m 11s and forecast to arrive on Monday (Aug 10) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Aug 12) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 11th Aug) | 5.5ft (1.7m) 11s |
| Best Surf | 9PM (Tue 11th Aug) | 5.5ft (1.7m) 11s |
| Most Powerful | 9PM (Mon 10th Aug) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Alright, let’s get into it.
The next couple of weeks are a bit of a mixed bag. We’ve got a solid start this Sunday morning, but then the surf gets messy and a bit all over the place for a while. There’s a real gap in quality offers in the middle there, but things might clean up again towards the end of the forecast period, especially if you’re willing to wait it out.
First up, the standout of the entire outlook is Ohara, early on Sunday morning. We’ve got a clean 6ft of ESE swell rolling in with a 13-second period, and the energy is strong, sitting at 1131. The wind is basically nothing, glassy, with just a slight air. For an exposed spot like this, that’s about as good as it gets. Water temp is 80°F, which is spot on average for this time of year. This is a window for experienced surfers; the size is there to make it fun. It’s a shame it’s inconsistent, you might have to be patient, but the waves that do come through should be well worth it. This is the pick of the whole period.
Now, the rest of Sunday afternoon gets a bit more cross with a gentle breeze, and the quality drops off. Monday, we see the swell pick up to 7ft but the wind swings around to a fresh cross-onshore, which is going to chop it all up. That’s a write-off. Tuesday morning, the wind is onshore and the period drops, it’s a messy, average 7ft. Tuesday afternoon gets a bit cleaner with some cross-offshore wind, but it’s still marginal.
From Wednesday through to the following Tuesday, it’s mostly poor to marginal. The wind is often onshore or cross-onshore, and while there’s some size at times, the quality just isn't there. This is that real lull in the action, a good time to do something else. There’s a stretch of several days here where you wouldn’t want to bother.
Now, we get a little glimmer of hope around the 18th and 19th. The wind finally shifts offshore, coming out of the south, and the surf cleans up. It’s not big, around 6ft, with a shorter 8-second period, but it’s clean. The energy is moderate at best, in the 400s. It’s surfable, and for a spot that’s been getting battered, it’s a welcome change. But it’s not in the same league as that Sunday morning session.
After that, the swell starts to fade away. By the 21st, we’re down to under 3ft with weak energy. The following weekend looks mostly poor, with a lot of nothing happening. Things get glassy again on the 23rd and 24th, but the swell is tiny, less than 3ft, and the energy is still weak. It might be a longboard or a SUP kind of vibe, but it's not the main event.
So, if you’re looking for the one to get excited about, it’s that Sunday morning at Ohara. Everything else is just trading quality for small windows of clean conditions.
Rusty.
Short Range ForecastModerate rain (total 18mm), heaviest on Tue night. Warm (max 27°C on Sun morning, min 22°C on Mon night). Winds increasing (calm on Sun morning, fresh winds from the NE by Mon afternoon). | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Wed morning. Warm (max 27°C on Thu afternoon, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 13 | ESE 13 | ESE 12 | E 12 | E 11 | ENE 10 | E 10 | E 11 | E 11 | E 10 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | ESE 10 |
Wave Graph | |||||||||||||||||||||
998 | 903 | 794 | 1227 | 1075 | 1288 | 834 | 663 | 617 | 273 | 198 | 198 | 235 | 416 | 557 | 635 | 650 | 474 | 383 | 334 | 706 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-on | cross-on | cross-on | on | on | cross-off | off | cross-off | on | on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | cross | cross-on |
High Tide | 4:05PM1.23m | 00:13AM1.33m | 4:26PM1.30m | 1:39AM1.38m | 4:49PM1.34m | 2:45AM1.44m | 5:12PM1.36m | 3:41AM1.48m | 5:34PM1.37m | 4:31AM1.49m | 5:55PM1.38m | 5:18AM1.46m | 6:15PM1.39m | ||||||||
Low Tide | 7:30PM1.17m | 8:32AM0.12m | 8:49PM1.11m | 9:24AM0.04m | 9:36PM1.00m | 10:08AM0.01m | 10:16PM0.88m | 10:46AM0.04m | 10:53PM0.75m | 11:21AM0.12m | 11:31PM0.63m | 11:52AM0.24m | 00:09AM0.53m | ||||||||
4:52 | — | — | 4:52 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:56 | — | — | 4:56 | — | — | |
— | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | |
mm | — | — | — | — | — | — | — | — | 18 | 4 | — | — | 1 | — | 3 | — | — | 5 | 3 | 7 | 2 |
Temp °C | 27 | 27 | 25 | 26 | 26 | 24 | 26 | 26 | 24 | 25 | 25 | 25 | 26 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 29 | 27 | 27 | 24 | 24 | 23 | 25 | 24 | 26 | 28 | 27 | 28 | 28 | 29 | 30 | 28 | 28 | 28 | 29 | 28 | 28 |
Swell 1 Height (m) Direction Period (s) | ESE 13 | ESE 13 | ESE 12 | E 12 | SSW 11 | ENE 10 | E 10 | E 11 | E 11 | E 10 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | ESE 10 |
998 | 903 | 794 | 1227 | 97 | 860 | 834 | 663 | 617 | 273 | 198 | 198 | 235 | 416 | 557 | 635 | 650 | 474 | 383 | 334 | 706 | |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 11 | SW 11 | S 10 | S 10 | NE 9 | S 10 | S 10 | S 11 | S 10 | S 10 | S 10 | S 9 | SSW 9 | SSW 9 | SSE 11 | SSE 10 | SSE 10 | SSW 9 |
133 | 141 | 104 | 93 | 103 | 78 | 55 | 162 | 74 | 77 | 82 | 52 | 51 | 50 | 45 | 28 | 28 | 44 | 98 | 80 | 25 | |
Swell 3 Height (m) Direction Period (s) | — | SW 12 | SW 12 | SW 12 | SSE 10 | SE 14 | SSW 11 | SW 11 | SSW 10 | SE 13 | S 4 | S 5 | SSE 11 | SSE 11 | SE 11 | SSE 12 | SSE 11 | SSW 9 | SE 14 | SSW 11 | SSE 12 |
— | 90 | 23 | 23 | 11 | 7 | 90 | 43 | 111 | 6 | 10 | 8 | 13 | 12 | 5 | 26 | 23 | 27 | 7 | 23 | 14 | |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 5 | E 11 | ENE 10 | NE 8 | SSW 11 | SSE 3 | SE 4 | — | NE 8 | N 3 | — | — | — | — | — | — | — | SSE 9 |
— | — | — | 44 | 1075 | 1288 | 553 | 117 | 4 | 18 | — | 46 | 5 | — | — | — | — | — | — | — | 47 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 62 | 24 | 64 | 58 | 58 | 6 | 581 | 0 | 8 | 6 | 6 | 24 | 58 | 9 | 6 | 58 | 58 | 213 | 213 | 9 |
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)
Latest Updates
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.











