
Surf Forecasts:
Ohara surf forecast from 5 Sep 2026:
- Best quality surf: Monday 7 Sep, 12AM (local time) - 10ft (3.0m), 8s period, ESE swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 12PM (local time) - 11ft (3.5m), 10s period, S swell with 2,625 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 12AM (local time) - 10ft (3.0m), 8s 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 Monday (Sep 07) at 12AM. The primary swell is predicted to be 3.0m and 8s period with a secondary swell of 1.1m and 9s. 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 3.5m 10s and forecast to arrive on Monday (Sep 07) at 12PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 12s period and expected on Monday (Sep 07) at 12AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 7th Sep) | 10ft (3.0m) 8s |
| Best Surf | 12AM (Mon 7th Sep) | 10ft (3.0m) 8s |
| Most Powerful | 12PM (Mon 7th Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Alright, let's get into it. The next couple of weeks are a bit of a mixed bag, so let's break it down day by day.
The surf window kicks off this Saturday morning, the 5th, but honestly, it's not worth getting wet for. We've got a weak 3.6ft of east swell, but the period is a tiny 6 seconds and it's crossed up with a light ENE breeze. It's just messy and lacking any punch. The energy is only 162, which is weak, and the conditions are poor. It's a no-go.
Sunday the 6th picks up a bit in size, but the wind swings around onshore and it gets lumpy. We're looking at 5.2ft in the morning, bumping to 7.2ft by the afternoon, but the period is still short and the cross-onshore wind is going to chop it all up. It's a fade.
Now, here's where things get interesting. Monday the 7th. The swell really fills in, with the morning showing 9.8ft of SSE groundswell at a 9-second period, and it jumps to a solid 11.5ft by the afternoon with a 10-second period. The energy readings are through the roof – 2054 in the morning and 2869 in the afternoon. That's some serious power. The wind is offshore from the south, which would normally be perfect for Ohara. The catch? This is way too big for this spot. That's expert-only territory, and even then, it's going to be a washing machine trying to get out. It's going to be wild, but not for the faint of heart.
Tuesday the 8th settles down, but it's still sizable. The swell drops to 8.2ft in the morning and 7.2ft in the afternoon, with a 10-second period. The wind is cross-offshore and the afternoon looks clean with light winds. This could be the standout of the week for the more experienced crew. The morning has a bit more breeze, but the afternoon is where it's at – clean, powerful waves. The energy is strong but manageable.
Wednesday the 9th, the swell is still there at 8.2ft, but the period drops to 8-9 seconds and the wind freshens up cross-offshore. It's going to be a bit more unruly and the quality will suffer. It's a step down from Tuesday.
From Thursday the 10th right through to Saturday the 19th, it's a long stretch of poor conditions. Sizes drop off, the wind goes onshore or cross-onshore, and the periods are short. There's a lot of junk in the water; it's going to be flat and messy. This is a solid ten-day lull. A couple of mornings have a slight offshore tendency, but the swell is too small and weak to make anything of it. It's a waiting game.
Then, finally, on Sunday the 20th, things look like they might turn around. The wind swings light and offshore from the ESE, the swell picks up to 3.3-4.6ft from the ENE with a 9-second period. It's still not huge, but it's clean. The conditions are described as good, and with that light offshore breeze, Ohara could finally have some fun, well-shaped waves. It's the best option on the board after a long dry spell. It's still a while away, so don't book your flights yet, but it's a light at the end of the tunnel.
That Sunday the 20th is your best bet for a paddle, but keep an eye on the days around Monday the 7th if you're an expert looking for a serious adrenaline hit.
Short Range ForecastHeavy rain (total 250mm), heaviest during Sun night. Warm (max 27°C on Mon morning, min 22°C on Sat morning). Winds increasing (light winds from the ENE on Sat morning, strong winds from the S by Mon morning). | Days 4-6 Weather SummaryHeavy rain (total 52mm), heaviest during Thu afternoon. Warm (max 28°C on Wed morning, min 18°C on Thu night). Winds increasing (calm on Tue afternoon, strong winds from the NE by Thu afternoon). | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 6 | E 5 | E 5 | ENE 6 | E 7 | ESE 8 | SSE 9 | S 10 | SSE 10 | SSE 10 | SSE 10 | S 9 | S 8 | S 9 | S 9 | NE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 6 | E 13 |
Wave Graph | |||||||||||||||||||||
75 | 32 | 70 | 186 | 487 | 1159 | 1604 | 2590 | 1393 | 1255 | 885 | 794 | 959 | 1184 | 533 | 342 | 344 | 356 | 121 | 107 | 92 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | on | on | on |
High Tide | 8:16PM1.31m | 4:18PM1.20m | 10:02PM1.24m | 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 | |||||||||
Low Tide | 5:51AM0.35m | 5:37PM1.19m | 7:21AM0.28m | 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 | |||||||||
5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | |
— | 6:00 | — | — | 5:59 | — | — | 5:58 | — | — | 5:55 | — | — | 5:54 | — | — | 5:53 | — | — | 5:52 | — | |
mm | 9 | 2 | — | 3 | 15 | 160 | 34 | 6 | 21 | 2 | 3 | 10 | 3 | 5 | 9 | 5 | 6 | 9 | 2 | 3 | 2 |
Temp °C | 22 | 23 | 23 | 24 | 23 | 26 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 23 | 21 | 21 | 21 | 18 | 19 | 20 |
Feels °C | 23 | 22 | 22 | 21 | 20 | 24 | 25 | 26 | 28 | 28 | 30 | 27 | 28 | 28 | 23 | 18 | 18 | 17 | 14 | 17 | 19 |
Swell 1 Height (m) Direction Period (s) | S 10 | SSW 9 | ESE 8 | SSE 8 | S 8 | NE 9 | E 8 | E 8 | SSE 10 | SSE 10 | SSE 10 | E 8 | E 9 | E 9 | S 9 | S 9 | S 9 | S 8 | S 8 | ENE 6 | ENE 5 |
47 | 28 | 24 | 13 | 19 | 172 | 450 | 279 | 1393 | 1255 | 885 | 29 | 27 | 13 | 533 | 264 | 150 | 65 | 31 | 64 | 47 | |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 9 | SSW 8 | SSW 8 | E 15 | NNE 12 | — | NNE 11 | E 9 | E 8 | E 19 | SSW 14 | E 17 | E 16 | ESE 16 | ESE 15 | ESE 15 | ESE 14 | E 14 | S 8 | E 13 |
27 | 26 | 24 | 7 | 4 | 15 | — | 12 | 175 | 86 | 7 | 20 | 23 | 21 | 49 | 42 | 73 | 68 | 104 | 28 | 92 | |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 6 | E 12 | SE 12 | ESE 11 | — | — | — | SE 10 | E 16 | E 19 | E 18 | NE 8 | NNE 8 | ESE 11 | SE 9 | SE 10 | — | SE 10 | E 14 | S 8 |
13 | 14 | 11 | 6 | 13 | — | — | — | 26 | 5 | 7 | 6 | 3 | 6 | 12 | 3 | 16 | — | 15 | 100 | 28 | |
Wind waves Height (m) Direction Period (s) | E 6 | E 5 | E 5 | ENE 6 | E 7 | ESE 8 | SSE 9 | S 10 | — | — | — | S 9 | S 8 | S 9 | NE 7 | NE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 6 | N 4 |
75 | 32 | 70 | 186 | 487 | 1159 | 1604 | 2590 | — | — | — | 794 | 959 | 1184 | 321 | 342 | 344 | 356 | 121 | 107 | 30 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 58 | 9 | 559 | 623 | 623 | 72 | 62 | 92 | 81 | 9 | 0 | 8 | 92 | 85 | 58 | 623 | 114 | 248 | 213 | 206 | 9 |
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.










