Surf Forecasts:
Ohara surf forecast from 8 Aug 2026:
- Best quality surf: Sunday 9 Aug, 3AM (local time) - 5.5ft (1.7m), 14s period, ESE swell with glassy winds.
- Most powerful swell: Monday 10 Aug, 3PM (local time) - 8ft (2.5m), 12s period, ENE swell with 1,586 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 3AM (local time) - 5.5ft (1.7m), 14s period with ESE 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 Sunday (Aug 09) at 3AM. The primary swell is predicted to be 1.7m and 14s period with a secondary swell of 0.9m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ohara in the next 16 days are 2.5m 12s and forecast to arrive on Monday (Aug 10) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Tuesday (Aug 11) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 9th Aug) | 5.5ft (1.7m) 14s |
| Best Surf | 3AM (Sun 9th Aug) | 5.5ft (1.7m) 14s |
| Most Powerful | 3PM (Mon 10th Aug) | 8ft (2.5m) 12s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Alright folks, it's a bit of a waiting game here. The only spot showing any life for the next 16 days is Ohara, and it's important to know right off the bat that this wave is inconsistent—it doesn't always turn on. So we're already up against it.
For the first week, it's a write-off. The wind is a constant problem, mostly blowing onshore or across, turning what could be a decent swell into a choppy, blown-out mess. The energy in the water is significant—you're seeing combined energy numbers in the thousands early on, like 1131 on Sunday the 9th—but you wouldn't want to be out there.
We're looking at a blank run of over a week with no real quality. A couple of mornings mid-week look cleaner, but the swell is small and the conditions are marginal. It's a tough stretch, but that's just how it goes here sometimes.
Finally, there's some light at the end of the tunnel around Tuesday, August 18th. The morning brings a clean look with a cross-off breeze from the SSE and a solid 8ft swell from the East with a 10-second period. The combined energy is a strong 1951. That's a lot of power. Anything over 8ft is for experts only, so this is getting up there. It's a serious wave for the guys who know what they're doing.
But the real sweet spot is Tuesday afternoon (August 18th) and into Wednesday morning. Tuesday afternoon is the pick of the entire forecast: a clean 7ft easterly swell, light offshore wind from the SE, and glassy conditions. That's as good as it gets on this run. Wednesday morning is similar, though the swell period drops off.
By the very end of the run, the swell backs right off to about 2ft on Sunday the 23rd, but with a very long 14-second period. That's a clean, small groundswell for the longboard, but you'll need to pick your spot because that kind of period can straighten out at a beach break.
Best on offer: Tuesday, August 18th afternoon at Ohara. A clean 7ft East swell with light SE winds. It's the one session that is truly firing. The morning is big and raw for the experts, but the afternoon is the one to circle on the calendar.
Keep the powder dry until then.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue afternoon. Warm (max 27°C on Sun morning, min 22°C on Mon night). Winds increasing (calm on Sat night, fresh winds from the SSW by Tue afternoon). | Days 5-7 Weather SummaryHeavy rain (total 63mm), heaviest during Tue night. Warm (max 28°C on Fri morning, min 24°C on Tue night). Mainly fresh winds. | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 14 | ESE 13 | ESE 13 | ESE 12 | E 12 | ENE 12 | ENE 10 | E 11 | E 12 | E 11 | E 10 | E 9 | E 9 | E 10 | E 9 | E 9 | E 10 | E 10 | E 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 1053 | 998 | 903 | 794 | 1103 | 1586 | 1341 | 970 | 1058 | 291 | 228 | 162 | 185 | 307 | 332 | 427 | 882 | 815 | 1092 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | cross | on | cross-on | cross-on | on | cross | cross-off | off | cross-off | cross | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on |
High Tide | 10:31PM1.32m | 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 | |||||||
Low Tide | 7:27AM0.23m | 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 | |||||||
 |  | |  |  | | |  |  |  |  | | | | | | | | | |
 | — | 4:52 | — | — | 4:52 | — | — | 4:54 | — | — | 4:54 | — | — | 4:54 | — | — | 4:56 | — | — |
 | 6:36 | — | 6:34 | — | — | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — |
mm | — | — | — | — | — | — | — | — | 5 | 24 | 8 | 1 | 1 | 2 | 1 | 9 | 6 | 11 | 3 |
Temp °C | 25 | 27 | 27 | 25 | 26 | 26 | 23 | 25 | 25 | 25 | 26 | 27 | 25 | 27 | 27 | 26 | 28 | 27 | 25 |
Feels °C | 28 | 29 | 28 | 27 | 24 | 24 | 21 | 26 | 25 | 23 | 29 | 29 | 28 | 29 | 28 | 29 | 29 | 29 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 14 | ESE 13 | ESE 13 | ESE 12 | E 12 | E 12 | ENE 10 | E 11 | E 12 | E 11 | E 10 | E 9 | E 9 | E 10 | E 9 | E 9 | E 10 | S 9 | E 10 |
| kJ | 1053 | 998 | 903 | 794 | 1103 | 1166 | 800 | 970 | 1058 | 291 | 228 | 162 | 185 | 307 | 332 | 427 | 587 | 61 | 787 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 10 | S 10 | S 10 | S 11 | S 11 | S 10 | S 10 | NE 9 | ENE 11 | S 10 | SSW 11 | S 10 | S 10 | S 10 | S 10 | S 9 | SE 15 | S 10 |
| kJ | 231 | 133 | 141 | 104 | 86 | 88 | 78 | 77 | 287 | 207 | 78 | 150 | 106 | 73 | 51 | 48 | 43 | 9 | 65 |
Swell 3 Height (m) Direction Period (s) | SW 14 | — | SW 12 | SW 12 | SW 12 | SW 11 | — | SSW 11 | SE 13 | S 10 | SSW 5 | ESE 5 | E 11 | SSE 11 | SSE 12 | SSE 11 | SSE 11 | S 21 | SE 20 |
| kJ | 29 | — | 90 | 23 | 37 | 103 | — | 90 | 26 | 75 | 7 | 18 | 81 | 13 | 13 | 11 | 25 | 9 | 15 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ENE 12 | ENE 10 | — | SSW 11 | S 5 | ESE 5 | — | — | NE 3 | — | — | E 10 | E 10 | E 10 |
| kJ | — | — | — | — | — | 1586 | 1341 | — | 164 | 53 | 7 | — | — | 5 | — | — | 882 | 815 | 1092 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 62 | 6 | 64 | 58 | 58 | 6 | 9 | 0 | 72 | 9 | 6 | 58 | 58 | 9 | 213 | 563 | 9 |
Best forecast wave conditions in Chiba | |||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ohara surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
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