
Surf Forecasts:
Ohara surf forecast from 8 Sep 2026:
- Best quality surf: Monday 14 Sep, 12AM (local time) - 3ft (0.9m), 9s period, SE swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 6PM (local time) - 6ft (1.9m), 9s period, S swell with 614 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 12AM (local time) - 3ft (0.9m), 9s period with SE 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 14) at 12AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.5m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ohara in the next 16 days are 1.9m 9s and forecast to arrive on Tuesday (Sep 08) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 8s period and expected on Wednesday (Sep 09) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 14th Sep) | 3ft (0.9m) 9s |
| Best Surf | 12AM (Mon 14th Sep) | 3ft (0.9m) 9s |
| Most Powerful | 6PM (Tue 8th Sep) | 6ft (1.9m) 9s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Alright, let’s get into it. This is Rusty, and I’m looking at the next couple of weeks for Ohara.
Right now, we’re in a bit of a flat spell. The first few days are a write-off, with messy, onshore winds and poor conditions. Tuesday and Wednesday morning have some waist to chest-high swell, around 5 ft to 7 ft, with a south swell direction, but the wind is cross-off and strong, especially Wednesday with 25 mph gusts. The water is a touch warmer than normal at 82°, but that’s about the only good thing. The combined energy is moderate, around 491 to 621, but it’s just not clean enough to get excited about.
Then Thursday through to the weekend of the 10th to 13th, it’s a total bust. Swell drops to 3 ft or less, winds are cross-on or onshore, and the period is either short or weird. The energy drops to the 200s and 300s (weak). You’d be better off doing something else.
Now, here’s the first real window: Monday the 14th into Tuesday the 15th. Ohara wakes up. We’re looking at clean, offshore winds from the SSE and S, light at 3 mph to 9 mph, with a 4 ft swell from the SE, period 9 seconds. The energy is solidly moderate, around 344 to 347. This is the standout in the whole forecast. The sets will be clean, the wind is glassy to gentle offshore, and the break is inconsistent, but when it pulses, it’ll be worth it. If you can get out on the Monday morning, that’s your best bet. Expect some crowds, but with the inconsistency, it’s not a madhouse.
From the 16th onwards, it’s a slow decline again. The 17th and 18th are messy, with onshore winds and poor conditions. The 19th and 20th see a bit more size, 5 ft to 6 ft, but the wind is blowing 28-37 mph cross-on, so it’s blown out, messy, and really only interesting for kite surfers.
Then, the third week of September shows a massive pulse. On the 21st and 22nd, we get a huge swell, 8 ft to 12 ft, with long period swells (13-16 seconds) from the SE and ENE. The energy is crazy strong, in the thousands (5,198 to 5,955). But the wind is cross-on or onshore on the 21st, and by the 22nd afternoon, the wind is better, but the swell is just too big for this break. This is expert-only territory, and even then, the break is inconsistent. It’s a look-and-see situation, but the tide and wind on the 22nd afternoon might make it work for a very experienced crew. The 23rd is similar, with 10 ft of groundswell, but the wind is onshore, so it’s a no-go.
So, to sum it up: the best on offer is the Monday morning, 14th of September, for clean, waist-high plus waves. The second week has a massive, daunting swell that’s only for the brave and the experts. Keep an eye on the long-range forecast, but for now, the 14th is your day.
Rusty
Short Range ForecastModerate rain (total 15mm), heaviest on Wed night. Warm (max 29°C on Wed morning, min 19°C on Thu night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Fri morning. Warm (max 25°C on Sun afternoon, min 20°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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) | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | NE 7 | NE 7 | ENE 7 | ENE 8 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 |
Wave Graph | |||||||||||||||||||||
473 | 404 | 419 | 558 | 546 | 278 | 289 | 246 | 183 | 117 | 101 | 97 | 134 | 128 | 128 | 123 | 125 | 118 | 225 | 216 | 197 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | off | off | off |
High Tide | 3:48PM1.29m | 1:57AM1.32m | 4:05PM1.33m | 2:57AM1.39m | 4:23PM1.35m | 3:48AM1.44m | 4:41PM1.38m | 4:33AM1.45m | 5:00PM1.41m | 5:16AM1.43m | 5:18PM1.43m | 5:57AM1.37m | 5:37PM1.44m | ||||||||
Low Tide | 8:52PM0.96m | 9:09AM0.17m | 9:27PM0.80m | 9:47AM0.19m | 10:00PM0.64m | 10:21AM0.25m | 10:33PM0.50m | 10:51AM0.34m | 11:06PM0.38m | 11:18AM0.46m | 11:39PM0.30m | 11:43AM0.58m | 00:12AM0.27m | ||||||||
5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | |
— | 5:55 | — | — | 5:54 | — | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — | — | 5:49 | — | — | 5:47 | — | |
mm | — | — | 1 | — | 1 | 9 | 2 | 1 | 1 | 7 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 29 | 28 | 22 | 21 | 20 | 20 | 20 | 21 | 21 | 22 | 23 | 22 | 24 | 25 | 24 | 26 | 26 | 26 |
Feels °C | 30 | 30 | 29 | 28 | 28 | 20 | 20 | 17 | 18 | 21 | 22 | 22 | 23 | 23 | 22 | 26 | 27 | 28 | 30 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | E 8 | E 8 | ESE 10 | S 8 | S 8 | S 8 | S 8 | ENE 8 | S 8 | S 8 | S 7 | E 13 | E 13 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 |
473 | 404 | 31 | 11 | 40 | 278 | 199 | 195 | 160 | 117 | 78 | 55 | 40 | 128 | 128 | 83 | 112 | 118 | 225 | 216 | 197 | |
Swell 2 Height (m) Direction Period (s) | E 9 | E 8 | SE 10 | NE 9 | NE 10 | SE 10 | ESE 15 | ESE 15 | ESE 14 | S 8 | E 14 | E 14 | E 14 | SE 9 | SE 9 | E 13 | E 13 | E 12 | ESE 12 | ESE 12 | E 14 |
96 | 71 | 15 | 12 | 14 | 23 | 42 | 72 | 67 | 102 | 101 | 97 | 134 | 39 | 36 | 123 | 125 | 77 | 48 | 49 | 181 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | NNE 8 | E 17 | E 16 | ESE 16 | SE 10 | SE 10 | SE 9 | E 14 | SE 10 | SE 9 | SE 9 | S 7 | NE 6 | SSW 7 | NE 6 | NE 6 | E 15 | E 14 | NE 9 |
16 | 16 | 6 | 23 | 21 | 48 | 14 | 16 | 14 | 106 | 24 | 31 | 40 | 26 | 13 | 9 | 21 | 9 | 71 | 66 | 20 | |
Wind waves Height (m) Direction Period (s) | — | — | S 9 | S 8 | S 8 | NE 6 | NE 7 | NE 7 | ENE 7 | — | NE 7 | NE 7 | NE 6 | NE 6 | — | NE 6 | — | — | — | — | — |
— | — | 419 | 558 | 546 | 194 | 289 | 246 | 183 | — | 77 | 52 | 24 | 24 | — | 20 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 8 | 563 | 827 | 563 | 301 | 213 | 114 | 9 | 6 | 9 | 6 | 21 | 64 | 24 | 30 | 9 | 0 | 0 | 0 | 0 |
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.










