Surf Forecasts:
Ohara surf forecast from 14 Sep 2026:
- Best quality surf: Saturday 19 Sep, 3PM (local time) - 11ft (3.5m), 13s period, SE swell with cross-onshore winds.
- Most powerful swell: Saturday 19 Sep, 3AM (local time) - 10ft (3.0m), 14s period, SE swell with 3,420 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 9AM (local time) - 2.5ft (0.7m), 14s period with E 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 Tuesday (Sep 15) at 9AM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.7m and 14s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ohara in the next 16 days are 3.0m 14s and forecast to arrive on Saturday (Sep 19) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 9s period and expected on Sunday (Sep 20) at 3AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Tue 15th Sep) | 2.5ft (0.7m) 14s |
| Best Surf | 3PM (Sat 19th Sep) | 11ft (3.5m) 13s |
| Most Powerful | 3AM (Sat 19th Sep) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Alright, let’s break this down in feet and miles per hour.
Ohara’s first real chance is on Tuesday the 15th. Morning has a risk of thunderstorms and a moderate offshore wind, with a 4ft SE swell, 8 second period. The energy is moderate (406). Afternoon cleans up nicely with a light breeze, 3ft E swell, and a very long 14 second period – that’s proper groundswell. Energy picks up (576). The water temp is about average for the season. Ohara is inconsistent and sometimes crowded, so don’t expect a solo session.
Wednesday the 16th and Thursday the 17th are blown out – onshore winds and messy conditions. Not worth a look. Friday the 18th stays ugly with strong cross-onshore winds. Saturday the 19th sees an 12ft SE swell by the afternoon, but it’s still cross-on and far too big for this spot. Experts only, if at all.
After more poor days, Tuesday the 22nd afternoon turns glassy with a 6ft SSW swell and 14 second period – excellent for experienced surfers. Strong energy (1428). That’s the standout of the period.
Wednesday the 23rd morning is massive – 18ft SW groundswell, offshore wind, extreme energy (11226). Too big for most. The afternoon drops to a clean 7ft S swell with fresh offshore wind, but it’s marginal due to tide.
Thursday the 24th morning is glassy again, with a small 3ft SSE swell and 9 second period – low energy (266), but clean and quiet.
From there, onshore winds take over. The rest of the month is poor, with strong cross-onshore winds and messy surf. Even a 8ft S groundswell on Wednesday the 30th with 15 second period and 3020 energy gets ruined by the wind.
Best bets: Tuesday the 22nd afternoon and Thursday the 24th morning. The 23rd morning is for experts only.
Rusty
Short Range ForecastHeavy rain (total 48mm), heaviest during Tue afternoon. Warm (max 26°C on Mon night, min 19°C on Thu afternoon). Winds increasing (calm on Tue afternoon, strong winds from the NNE by Thu morning). | Days 5-7 Weather SummaryHeavy rain (total 60mm), heaviest during Sat morning. Warm (max 25°C on Sun afternoon, min 20°C on Thu night). Winds decreasing (strong winds from the NNE on Fri afternoon, light winds from the ENE by Sat night). | ||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||
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) | SE 9 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 | NE 7 | NE 8 | ENE 8 | ENE 8 | SE 15 | SE 14 | SE 13 | SE 13 | SE 12 | SE 13 | SE 12 | SE 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 199 | 201 | 261 | 167 | 215 | 148 | 138 | 379 | 665 | 869 | 953 | 1417 | 3326 | 2795 | 3393 | 2733 | 2617 | 1769 | 1711 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-on | cross-on | cross-on | on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | cross-off | on | on | on |
High Tide | 6:37AM1.29m | 5:55PM1.44m | 7:19AM1.20m | 6:15PM1.41m | 8:08AM1.10m | 6:34PM1.38m | 9:23AM1.01m | 6:55PM1.32m | 7:16PM1.25m | 7:40PM1.16m | |||||||||
Low Tide | 00:12AM0.27m | 12:04PM0.69m | 00:47AM0.28m | 12:23PM0.80m | 1:25AM0.33m | 12:37PM0.89m | 2:10AM0.40m | 12:34PM0.96m | 3:12AM0.47m | 4:48AM0.52m | |||||||||
 |  |  |  |  | |  | | | | |  | | | | |  | |  | |
 | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — | 5:24 | — | — |
 | — | — | 5:45 | — | — | 5:45 | — | — | 5:44 | — | — | 5:42 | — | — | 5:40 | — | — | 5:38 | — |
mm | 4 | 3 | 18 | 3 | 5 | 5 | 7 | 2 | 1 | 2 | 1 | — | 4 | 28 | 16 | 9 | — | — | — |
Temp °C | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 20 | 20 | 21 | 21 | 21 | 22 | 23 | 23 | 24 | 23 | 25 | 22 |
Feels °C | 27 | 26 | 27 | 27 | 23 | 24 | 24 | 16 | 15 | 17 | 16 | 16 | 19 | 21 | 25 | 24 | 23 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 8 | SSE 7 | SE 7 | SSE 6 | SE 8 | E 12 | SE 8 | E 14 | SE 9 | SE 18 | SE 15 | SE 14 | SE 13 | SE 13 | SE 12 | SE 13 | SE 12 | SE 12 |
| kJ | 199 | 201 | 178 | 152 | 71 | 78 | 138 | 28 | 14 | 3 | 319 | 1417 | 3326 | 2795 | 3393 | 2733 | 2617 | 1769 | 1711 |
Swell 2 Height (m) Direction Period (s) | E 14 | E 14 | E 14 | E 13 | E 13 | E 12 | SE 8 | E 12 | SE 9 | — | SE 8 | — | — | E 10 | E 10 | S 15 | E 14 | E 13 | E 12 |
| kJ | 189 | 195 | 261 | 167 | 215 | 148 | 64 | 67 | 3 | — | 3 | — | — | 98 | 127 | 858 | 15 | 31 | 45 |
Swell 3 Height (m) Direction Period (s) | ENE 7 | ENE 7 | — | SSW 6 | SSW 6 | SW 5 | E 16 | E 15 | E 13 | — | — | — | — | — | — | NE 9 | — | E 13 | E 12 |
| kJ | 10 | 10 | — | 22 | 12 | 7 | 5 | 4 | 31 | — | — | — | — | — | — | 226 | — | 54 | 103 |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 4 | SSE 7 | NE 2 | NE 4 | NE 5 | NE 6 | NE 7 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 6 | — | NNE 9 | NE 5 | ENE 12 |
| kJ | 7 | 5 | 137 | 1 | 15 | 43 | 69 | 379 | 665 | 869 | 953 | 848 | 651 | 441 | 263 | — | 129 | 64 | 371 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 104 | 0 | 0 | 9 | 64 | 24 | 9 | 301 | 301 | 542 | 559 | 559 | 542 | 623 | 114 | 58 | 9 | 9 | 6 |
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.
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