Surf Forecasts:
Ohara surf forecast from 16 Aug 2026:
- Best quality surf: Monday 17 Aug, 12AM (local time) - 4ft (1.2m), 9s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 9PM (local time) - 4ft (1.2m), 9s period, E swell with 230 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 12AM (local time) - 4ft (1.2m), 9s 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 Monday (Aug 17) at 12AM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.5m and 8s. 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 1.2m 9s and forecast to arrive on Sunday (Aug 16) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Aug 22) at 9AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 17th Aug) | 4ft (1.2m) 9s |
| Best Surf | 12AM (Mon 17th Aug) | 4ft (1.2m) 9s |
| Most Powerful | 9PM (Sun 16th Aug) | 4ft (1.2m) 9s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Alright, Rusty here. Let's break down what's cookin' in the Ohara zone.
Water's warm at about 81°F, right where it should be for mid-August.
The first week is a real bummer. Starting Sunday, August 16th, we've got a solid run of weak, disappointing surf. Swell is tiny, from 2ft to 4ft, out of the east. The energy is low, pretty much all below 300 (weak). The wind is junk, mostly cross-shore, and the waves are poor. It's a write-off until about the end of that week. Tuesday the 18th afternoon looks slightly cleaner, but still only a 2ft wave. Not worth paddling out for.
We finally get a sniff of offshore wind on the morning of Friday, August 21st, but the swell is a pathetic 2ft. It is a start, but just not enough.
Now, the last week of August into the first day of September is where the ocean wakes up... and then some. It’s a massive size event, but you have to pick your spot. The surf just explodes around Wednesday, August 26th. The swell jumps up with a very long period SSE groundswell, energy levels hitting 1851 (moderate to strong) and climbing.
The best window by far is the morning of Wednesday, August 26th. We’re looking at a solid 6ft wave from the SSE with a long 15-second period, and the wind is a gentle offshore from the south. The energy is pumping at 1851. That is the one to circle on your calendar.
After that, it gets insane. We are talking 8ft to 13ft surf, and by Monday, August 31st, it's predicted to be 24ft. The energy readings hit 26936, which is just enormous. The wind stays cross-off, so it would be clean, but every single prediction says the same thing: it's too big for this break. This is big-wave territory only, and even then, it's a maybe. For a standard session, that morning of the 26th is the only true standout in the whole forecast.
Rusty out.
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 27°C on Tue afternoon, min 24°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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 8 | E 9 | E 9 | E 9 | ESE 8 | ESE 8 | E 8 | SE 7 | E 9 | ESE 7 | ESE 7 | E 7 | E 8 | ESE 7 | ESE 7 | S 11 | SSW 11 | ESE 10 | E 10 | E 10 |
Wave Graph | ||||||||||||||||||||
200 | 230 | 154 | 151 | 115 | 113 | 65 | 54 | 56 | 50 | 35 | 70 | 95 | 94 | 42 | 64 | 119 | 214 | 200 | 214 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross-off | cross | cross-off | cross | cross | cross | cross-off | cross | cross-off | off | off | off | off | cross-off | cross-off | off |
High Tide | 6:35PM1.39m | 6:49AM1.29m | 6:55PM1.40m | 7:36AM1.17m | 7:14PM1.39m | 8:31AM1.06m | 7:35PM1.36m | 9:55AM0.97m | 7:57PM1.33m | 8:25PM1.27m | 9:20PM1.21m | |||||||||
Low Tide | 00:47AM0.46m | 12:44PM0.53m | 1:27AM0.43m | 1:05PM0.67m | 2:11AM0.43m | 1:20PM0.80m | 3:02AM0.46m | 1:21PM0.90m | 4:11AM0.49m | 5:46AM0.49m | ||||||||||
— | — | 4:58 | — | — | 4:58 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — | — | 5:01 | — | — | |
6:27 | — | — | 6:25 | — | — | 6:23 | — | — | 6:22 | — | — | 6:22 | — | — | 6:21 | — | — | 6:19 | — | |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 25 | 27 | 27 | 25 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 28 | 26 |
Feels °C | 27 | 27 | 28 | 28 | 28 | 29 | 30 | 28 | 29 | 29 | 28 | 30 | 30 | 29 | 28 | 28 | 28 | 29 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 9 | E 9 | E 9 | ESE 8 | ESE 8 | E 8 | SE 7 | SE 7 | ESE 7 | ESE 7 | E 7 | E 8 | ESE 7 | ESE 7 | E 8 | E 9 | ESE 10 | E 10 | E 10 |
200 | 230 | 154 | 151 | 115 | 113 | 65 | 54 | 47 | 50 | 35 | 70 | 95 | 94 | 42 | 47 | 113 | 214 | 200 | 214 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 8 | SSW 8 | SE 11 | SE 10 | SE 10 | SE 7 | E 8 | E 9 | E 9 | E 8 | SE 11 | SE 11 | S 9 | S 8 | S 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 |
36 | 35 | 24 | 30 | 39 | 36 | 37 | 51 | 56 | 39 | 23 | 40 | 41 | 39 | 35 | 64 | 119 | 80 | 56 | 55 | |
Swell 3 Height (m) Direction Period (s) | ESE 9 | SE 11 | SE 11 | SSW 8 | SSW 8 | SSW 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 11 | S 10 | SE 11 | E 8 | S 9 | SE 10 | SE 10 | E 13 | S 4 |
35 | 31 | 30 | 23 | 13 | 6 | 26 | 36 | 25 | 35 | 35 | 21 | 30 | 41 | 35 | 39 | 36 | 16 | 55 | 5 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SSE 6 | — | — | SE 6 | S 4 | S 4 | S 4 | SSW 4 |
— | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | 34 | 6 | 17 | 18 | 13 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 77 | 0 | 111 | 62 | 0 | 9 | 0 | 64 | 64 | 58 | 0 | 206 | 0 | 0 | 0 | 0 | 0 | 92 | 8 | 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.











