
Surf Forecasts:
Ohara surf forecast from 7 Sep 2026:
- Best quality surf: Monday 7 Sep, 9PM (local time) - 10ft (3.0m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 9PM (local time) - 10ft (3.0m), 9s period, S swell with 1,367 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 9PM (local time) - 10ft (3.0m), 9s period with S 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 07) at 9PM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 2.5m and 9s. Another secondary swell of 1.0m and 8s is also forecast. 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 3.0m 9s and forecast to arrive on Monday (Sep 07) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 7th Sep) | 10ft (3.0m) 9s |
| Best Surf | 9PM (Mon 7th Sep) | 10ft (3.0m) 9s |
| Most Powerful | 9PM (Mon 7th Sep) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s talk about what’s on the menu for the next couple of weeks around Ohara.
First thing you need to know is the water’s sitting at 82°, which is a touch warmer than usual for this time of year. Nice little bonus.
The opening act is a bit of a wild card. Monday afternoon, the 7th of September, we’ve got a solid 10 ft S swell rolling in with a 10-second period. The energy is moderate (2045), but the kicker is a strong SSW wind at 35 km/h. It’s cross-off, so the face will be clean, but that’s a heap of water for an inconsistent spot like Ohara. This is for the experienced crew only; beginners should sit this one out. It’s a big, powerful swell that might be pushing the limits of what this break can handle.
The real standout window kicks off Tuesday morning, the 8th. The swell drops to a very manageable 6 ft from the SSE, and the wind goes nearly glassy – just a whisper from the WSW at 5 km/h. The wave energy is still moderate (586), and the period is a solid 9 seconds. This is the sweet spot. Smooth, clean lines with that offshore texture. Crowds are possible, but for a morning session, you’ll be laughing.
Tuesday afternoon keeps the fun going. Swell eases to 5 ft from the S, but the wind swings offshore from the SSW at 15 km/h. The energy is moderate (449), and the conditions are described as clean. It’s a solid afternoon session.
Wednesday the 9th is a washout. The swell jumps back up above 7 ft, and the wind cranks from the SW at 40 km/h. It’s cross-off, but the wind is too strong, and the swell is too raw. It’s not going to be pretty. The same goes for Thursday the 10th – onshore wind and poor conditions.
We hit a quiet patch after that. Friday through Sunday has tiny swell, around 2 ft to 2 ft, mostly from the east with a long 14-second period. That’s a groundswell, but it’s barely breaking. Saturday morning the 12th is glassy, but the waves are just too small to get excited about. Sunday the 13th is better, with a light SE cross-off breeze and clean 2 ft waves. It’s surfable, but it’s a longboard-only kind of day.
Monday the 14th sees a slight bump to 4 ft from the SE, but the wind is iffy. The real story is the big stuff coming in the second week. The week of the 17th onwards looks excellent on paper, but it’s a long way out. The standout potential is Tuesday the 22nd of September. That afternoon, we’re looking at a massive 12 ft SSE swell with an 18-second period. The energy is off the charts (9113) – that’s very strong wave energy. The wind is cross-off from the WSW at 25 km/h. This is a monster groundswell. For a reef or point, this would be epic, but at a beach break, that long period might make it close out and be a handful. It’s definitely for experts only, and it’s a promising but very uncertain call from this far out. The week leading up to it is mostly blown out by strong onshore winds, so don’t hold your breath.
Rusty.
Short Range ForecastHeavy rain (total 41mm), heaviest during Thu morning. Warm (max 29°C on Wed morning, min 21°C on Thu morning). Winds increasing (light winds from the SW on Mon night, strong winds from the SW by Wed morning). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Thu afternoon. Warm (max 27°C on Sun morning, min 21°C on Thu afternoon). Winds decreasing (fresh winds from the N on Thu afternoon, calm by Sat morning). | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 10 | S 9 | SSE 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | ENE 7 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | SE 9 | SE 9 |
Wave Graph | ||||||||||||||||||||
1879 | 812 | 484 | 363 | 373 | 565 | 709 | 354 | 258 | 224 | 168 | 106 | 101 | 97 | 134 | 128 | 128 | 123 | 125 | 152 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-on | on | on | cross-on | cross-on | cross-on | on | glassy | cross-on | cross-on | cross-off | cross-off | off |
High Tide | 3:36PM1.25m | 00:33AM1.25m | 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 | |||||||
Low Tide | 8:09PM1.10m | 8:22AM0.21m | 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 | |||||||
— | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | |
5:58 | — | — | 5:55 | — | — | 5:54 | — | — | 5:53 | — | — | 5:52 | — | — | 5:51 | — | — | 5:49 | — | |
mm | 9 | 7 | — | 2 | 5 | — | — | 5 | 13 | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 27 | 28 | 27 | 29 | 29 | 25 | 21 | 21 | 21 | 22 | 22 | 22 | 24 | 24 | 24 | 27 | 27 | 26 |
Feels °C | 26 | 28 | 30 | 31 | 29 | 28 | 28 | 29 | 21 | 19 | 20 | 24 | 24 | 25 | 27 | 27 | 28 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | E 8 | S 9 | SSE 9 | S 9 | E 9 | E 8 | NE 9 | S 8 | S 8 | S 8 | S 8 | NE 7 | S 8 | E 14 | NE 6 | E 13 | E 13 | SE 9 | SE 9 | SE 9 |
161 | 812 | 484 | 363 | 37 | 10 | 12 | 354 | 258 | 224 | 99 | 65 | 54 | 97 | 29 | 128 | 128 | 62 | 118 | 152 | |
Swell 2 Height (m) Direction Period (s) | NE 11 | E 8 | E 8 | E 9 | NE 8 | NE 8 | E 16 | SE 9 | ESE 15 | ESE 15 | ESE 14 | S 8 | NE 6 | S 7 | E 14 | SE 9 | ESE 9 | E 13 | E 13 | E 12 |
5 | 108 | 92 | 74 | 10 | 11 | 21 | 22 | 42 | 73 | 67 | 57 | 32 | 39 | 134 | 39 | 52 | 123 | 125 | 78 | |
Swell 3 Height (m) Direction Period (s) | — | SE 10 | ESE 10 | NE 9 | SE 10 | SE 10 | E 16 | ESE 16 | SE 9 | SE 10 | SE 9 | E 14 | E 14 | ESE 9 | S 7 | SSW 7 | NE 6 | NE 5 | NE 6 | ENE 6 |
— | 26 | 10 | 12 | 15 | 16 | 46 | 48 | 14 | 24 | 14 | 106 | 101 | 34 | 27 | 17 | 16 | 7 | 8 | 3 | |
Wind waves Height (m) Direction Period (s) | S 10 | — | — | — | S 9 | S 8 | S 8 | NE 7 | NE 6 | NE 6 | ENE 7 | — | NE 6 | NE 6 | — | NE 6 | — | NE 5 | — | — |
1879 | — | — | — | 373 | 565 | 709 | 261 | 161 | 96 | 168 | — | 47 | 34 | — | 16 | — | 10 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 78 | 0 | 0 | 0 | 92 | 542 | 542 | 9 | 9 | 85 | 24 | 9 | 6 | 6 | 0 | 9 | 6 | 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.










