
Surf Forecasts:
Ohara surf forecast from 16 Sep 2026:
- Best quality surf: Monday 21 Sep, 12AM (local time) - 18ft (5.5m), 13s period, SSE swell with cross-onshore winds.
- Most powerful swell: Monday 21 Sep, 3AM (local time) - 23ft (7.0m), 13s period, SE swell with 16,903 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 12AM (local time) - 18ft (5.5m), 13s period with SSE 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 (Sep 21) at 12AM. The primary swell is predicted to be 5.5m and 13s period with a secondary swell of 5.5m and 13s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Ohara in the next 16 days are 7.0m 13s and forecast to arrive on Monday (Sep 21) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Tuesday (Sep 22) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 21st Sep) | 18ft (5.5m) 13s |
| Best Surf | 12AM (Mon 21st Sep) | 18ft (5.5m) 13s |
| Most Powerful | 3AM (Mon 21st Sep) | 23ft (7.0m) 13s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Right then mate, Rusty here. Let's have a proper look at what Ohara has in store for us over the next couple of weeks. Gotta be straight with you – it's a bit of a rough start, so patience is the name of the game.
The first week or so is pretty much a write-off. We're looking at a solid stretch of days with strong onshore winds and messy, blown-out conditions thanks to those persistent NNE breezes. There's plenty of swell in the water – some serious energy readings like 1178 on Friday 18th and even 4741 on Saturday 19th, but it's all for nothing with the wind. This setup is honestly looking more appealing for the kite crew than for us paddle surfers. Thursday 21st afternoon brings a brief window of hope with a light westerly and a 6ft SSE swell, but it's only a marginal shout at best. After that, the energy drops right off into the middle of the following week, with piddly little waves and not enough power to get excited about.
Now, things finally start looking up around the weekend of the 26th and into the following week. The morning of Saturday 26th is still a bit average, but the afternoon is a proper standout. A clean 3ft southerly swell with a long, tasty 14-second period rolls in. The wind is a light SSW cross-off, and we've got clean conditions and 594 units of combined energy. It's not huge, but it'll be fun and lined-up.
Another one to circle is Monday 28th morning. The forecast is for a very good surf conditions with a light SSE breeze creating a clean, cross-off wind. We've got a 4ft swell from the SSW with a lovely 14-second period, giving us 848 combined energy. This is the pick of the bunch for that period – quality over quantity. It'll be a consistent, clean groundswell. Don't expect much of a crowd, it's inconsistent here at the best of times, so there should be plenty of waves to go around. Water temps are around 78°F, which is pretty normal for this time of year, so no surprises there.
The end of the forecast window into the first days of October looks like it might just be a case of too much of a good thing – we see a 13ft swell (predicted to be too big for the break) followed by onshore winds again. The long-range potential on Tuesday 29th is promising, with a big 6ft SSW swell and a super long 17-second period, but it's a fair way out and we'll have to see how it shapes up. The wind will be a stiff SW cross-off, so it'll be for the experienced crew only.
So, to wrap it up: the first 10 days are a bust, then Saturday afternoon the 26th and Monday morning the 28th are your best bets for some clean, quality waves.
Rusty.
Short Range ForecastHeavy rain (total 64mm), heaviest during Wed afternoon. Warm (max 23°C on Wed morning, min 20°C on Thu morning). Winds increasing (light winds from the NE on Wed morning, strong winds from the NNE by Fri morning). | Days 4-6 Weather SummaryHeavy rain (total 198mm), heaviest during Sun morning. Warm (max 29°C on Mon afternoon, min 21°C on Sat night). Mainly gales. | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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 13 | E 12 | E 12 | NE 7 | ENE 8 | ENE 8 | ENE 9 | NE 8 | SE 14 | SE 13 | SE 13 | SE 12 | ESE 11 | SE 11 | SSE 13 | SSE 13 | S 11 | SSE 9 | SSE 8 | SSE 8 | SSE 7 |
Wave Graph | |||||||||||||||||||||
215 | 148 | 138 | 492 | 560 | 837 | 1172 | 804 | 2261 | 4314 | 4265 | 3344 | 2207 | 2328 | 10770 | 6389 | 647 | 422 | 153 | 91 | 41 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross | on | cross-on | cross | cross-on |
High Tide | 6:15PM1.41m | 8:08AM1.10m | 6:34PM1.38m | 9:23AM1.01m | 6:55PM1.32m | 7:16PM1.25m | 7:40PM1.16m | 3:16PM1.16m | 11:36PM1.11m | 3:14PM1.21m | 1:17AM1.16m | ||||||||||
Low Tide | 12:23PM0.80m | 1:25AM0.33m | 12:37PM0.89m | 2:10AM0.40m | 12:34PM0.96m | 3:12AM0.47m | 4:48AM0.52m | 6:34AM0.49m | 8:04PM1.06m | 7:40AM0.42m | 8:28PM0.95m | ||||||||||
5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | |
— | 5:45 | — | — | 5:44 | — | — | 5:42 | — | — | 5:40 | — | — | 5:38 | — | — | 5:37 | — | — | 5:36 | — | |
mm | 9 | 39 | 11 | — | — | — | 2 | — | 3 | 1 | 3 | 31 | 45 | 22 | 76 | 20 | — | — | — | — | — |
Temp °C | 23 | 22 | 21 | 21 | 22 | 21 | 20 | 22 | 22 | 25 | 23 | 23 | 22 | 22 | 26 | 28 | 29 | 25 | 24 | 24 | 24 |
Feels °C | 25 | 22 | 19 | 16 | 17 | 16 | 15 | 19 | 20 | 24 | 22 | 21 | 18 | 18 | 23 | 24 | 31 | 25 | 24 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 8 | E 12 | SSE 9 | SSE 9 | SE 12 | SE 18 | SE 14 | SE 13 | SE 13 | SE 12 | ESE 11 | SE 11 | SSE 13 | SSE 13 | E 10 | SSE 9 | SSE 8 | SSE 8 | SSE 7 |
75 | 64 | 64 | 44 | 8 | 8 | 6 | 108 | 2261 | 4314 | 4265 | 3344 | 2207 | 2328 | 10770 | 6389 | 573 | 422 | 153 | 91 | 41 | |
Swell 2 Height (m) Direction Period (s) | E 13 | E 12 | E 12 | SE 8 | E 14 | SE 8 | — | E 11 | — | ENE 10 | — | — | SSE 11 | S 14 | — | E 10 | SSE 10 | E 10 | E 9 | E 9 | NE 8 |
215 | 148 | 138 | 29 | 14 | 3 | — | 9 | — | 131 | — | — | 940 | 377 | — | 1782 | 647 | 71 | 27 | 27 | 25 | |
Swell 3 Height (m) Direction Period (s) | SSW 6 | SE 8 | E 16 | E 15 | SSE 9 | — | — | SE 11 | — | — | — | — | — | E 13 | — | ESE 11 | NNE 8 | SW 8 | E 13 | NE 8 | E 9 |
10 | 3 | 5 | 17 | 8 | — | — | 5 | — | — | — | — | — | 31 | — | 207 | 157 | 3 | 4 | 25 | 25 | |
Wind waves Height (m) Direction Period (s) | NE 4 | NE 5 | NE 6 | NE 7 | ENE 8 | ENE 8 | ENE 9 | NE 8 | ENE 8 | NE 8 | ENE 8 | NE 9 | E 11 | E 9 | SE 13 | NNW 4 | S 11 | NE 8 | NE 8 | ENE 4 | ESE 6 |
17 | 46 | 126 | 492 | 560 | 837 | 1172 | 804 | 666 | 296 | 381 | 149 | 2077 | 918 | 9401 | 28 | 646 | 53 | 71 | 9 | 52 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 53 | 213 | 213 | 213 | 542 | 559 | 301 | 301 | 301 | 623 | 581 | 581 | 301 | 206 | 87 | 6 | 6 | 58 | 301 | 872 |
Best forecast wave conditions in Chiba | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
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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.










