
Surf Forecasts:
Ohara surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 6PM (local time) - 3.5ft (1.1m), 9s period, SE swell with offshore winds.
- Most powerful swell: Friday 18 Sep, 3PM (local time) - 8ft (2.5m), 16s period, SE swell with 3,400 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 9PM (local time) - 2ft (0.6m), 12s 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 Sunday (Sep 13) at 9PM. The primary swell is predicted to be 0.6m and 12s period with a secondary swell of 0.6m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ohara in the next 16 days are 2.5m 16s and forecast to arrive on Friday (Sep 18) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Friday (Sep 18) at 6AM.
| Wave Type | Time (JST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 13th Sep) | 2ft (0.6m) 12s |
| Best Surf | 6PM (Mon 14th Sep) | 3.5ft (1.1m) 9s |
| Most Powerful | 3PM (Fri 18th Sep) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Ohara over the next 16 days.
The Lowdown
Right then, let’s have a look at what’s on the cards for Ohara. The water’s sitting at a warm 81°, which is a touch above what you’d normally expect for this time of year, so the bathers will be happy even if the surf takes a while to get going.
Honestly, the start of this period is a bit of a dud. From Friday the 11th right through the weekend, it’s just blown-out and poor. Cross-on or onshore wind makes a mess of the small 2 ft to 2 ft easterly slop, and the energy is weak to moderate (201 to 263). You’re not missing anything.
Monday the 14th morning is still tiny, but the wind finally swings offshore from the SSW, cleaning up the 2 ft swell. The period is short at 9 seconds, so it’s not got much push, but the afternoon sees that swell bump up to 4 ft with a solid 12 mph offshore wind. The energy climbs to 312, and for the first time it’s looking surfable. Not a standout, but a start.
Tuesday the 15th and Wednesday the 16th are the real bright spot in this outlook. Tuesday morning brings a 2 ft easterly groundswell with a long 14-second period and light offshore wind. The energy is strong at 382. The wind holds offshore all day. Then Wednesday the 16th afternoon goes glassy, with no wind at all, picking up a clean 2 ft, 12-second E swell (energy 252). This is your window – a small, clean, lined-up setup that’s perfect for a longboard or a fish. It’s not big, but the quality is there. The break is inconsistent though, so be patient and wait for the sets.
Thursday the 17th goes back to choppy cross-on junk, and then Friday the 18th sees a massive pulse of swell – 6 ft to 8 ft from the SE with a very long 16-second period. The energy is huge (3182 to 3684), but the wind is howling onshore from the NNE at 19-22 mph. That combo will be a washing machine – messy and dangerous. This is kite-surfing territory, not paddle surfing.
That big energy sticks around for the weekend (19th and 20th) with 10 ft to 7 ft swell, but the wind is still cross-on. However, Sunday the 20th afternoon saves it. The wind drops to a light 3 mph offshore from the SSE, the swell sits at 7 ft from the SE with a 9-second period, and the energy is high (1296). That’s a clean, powerful wave for experienced surfers only – too big for beginners.
The following week (21st to 26th) is a mix of marginal conditions and more massive swells. Monday the 21st and Tuesday the 22nd have clean offshore winds but the swell is inconsistent and period is short or the wind is too strong (19 mph). The real standouts on the horizon are Friday the 25th afternoon and Saturday the 26th. On Friday the 25th afternoon, it goes absolutely glassy with a huge 10 ft, 16-second SE groundswell and an energy reading of 4619. That’s a monster, but the forecast says it’s too big for this break. Saturday the 26th carries the same problem – 12 ft SE swell, glassy or light cross, but far too big and powerful for a consistent session here. Keep an eye on it, but don’t hold your breath.
So, for the best surf, aim for Wednesday the 16th afternoon for the clean, glassy small stuff, or Sunday the 20th afternoon for the more powerful, expert-only waves.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Fri afternoon. Warm (max 24°C on Sun afternoon, min 20°C on Fri afternoon). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Tue afternoon. Warm (max 27°C on Mon morning, min 23°C on Wed afternoon). Wind will be generally light. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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 14 | E 14 | E 14 | E 14 | E 13 | ESE 13 | ESE 13 | E 13 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | E 14 | E 13 | E 13 | E 12 | E 12 | E 12 | E 11 | SE 20 |
Wave Graph | |||||||||||||||||||||
106 | 101 | 136 | 134 | 128 | 184 | 176 | 168 | 108 | 81 | 188 | 199 | 192 | 196 | 167 | 165 | 148 | 138 | 132 | 116 | 194 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross-on | on | on | cross | glassy | off | off | cross-off | off | off | cross-off | cross-off | glassy | cross-on | cross-on | on | on |
High Tide | 4:41PM1.38m | 4:33AM1.45m | 5:00PM1.41m | 5:16AM1.43m | 5:18PM1.43m | 5:57AM1.37m | 5:37PM1.44m | 6:37AM1.29m | 5:55PM1.44m | 7:19AM1.20m | 6:15PM1.41m | 8:08AM1.10m | 6:34PM1.38m | ||||||||
Low Tide | 10:21AM0.25m | 10:33PM0.50m | 10:51AM0.34m | 11:06PM0.38m | 11:18AM0.46m | 11:39PM0.30m | 11:43AM0.58m | 00:12AM0.27m | 12:04PM0.69m | 00:47AM0.28m | 12:23PM0.80m | 1:25AM0.33m | 12:37PM0.89m | 2:10AM0.40m | |||||||
5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | |
— | 5:52 | — | — | 5:51 | — | — | 5:49 | — | — | 5:47 | — | — | 5:45 | — | — | 5:45 | — | — | 5:44 | — | |
mm | 1 | 7 | 5 | 4 | — | — | — | — | — | — | — | — | 2 | 3 | 3 | — | 1 | — | — | — | 2 |
Temp °C | 21 | 20 | 21 | 22 | 23 | 22 | 23 | 24 | 24 | 27 | 27 | 26 | 27 | 26 | 25 | 25 | 25 | 24 | 24 | 23 | 22 |
Feels °C | 22 | 20 | 22 | 24 | 24 | 23 | 25 | 27 | 29 | 29 | 28 | 29 | 29 | 27 | 28 | 29 | 30 | 27 | 26 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | E 14 | E 14 | E 13 | ESE 13 | ESE 13 | E 13 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | E 11 | E 11 |
41 | 40 | 136 | 134 | 128 | 184 | 176 | 168 | 93 | 81 | 188 | 199 | 189 | 171 | 155 | 135 | 90 | 90 | 69 | 116 | 116 | |
Swell 2 Height (m) Direction Period (s) | E 14 | E 14 | S 8 | SE 9 | SE 9 | NE 6 | NE 6 | SE 9 | E 12 | E 12 | E 12 | E 14 | E 14 | E 14 | E 13 | E 13 | E 12 | E 12 | E 12 | SE 7 | SE 8 |
106 | 101 | 28 | 40 | 39 | 22 | 23 | 61 | 108 | 76 | 112 | 189 | 192 | 196 | 167 | 165 | 148 | 138 | 132 | 34 | 42 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 9 | S 7 | SSW 7 | SE 8 | SE 9 | NE 6 | ENE 6 | E 9 | NE 7 | ENE 7 | S 7 | S 7 | S 9 | NE 5 | SE 8 | SE 8 | S 9 | SSE 9 | SE 20 |
23 | 23 | 22 | 28 | 18 | 28 | 21 | 19 | 16 | 42 | 11 | 11 | 1 | 1 | 2 | 3 | 3 | 3 | 2 | 8 | 194 | |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 5 | NE 5 | NE 5 | NE 6 | — | NE 6 | — | — | — | S 7 | SW 7 | — | — | NE 4 | NNE 5 | NE 6 | NE 4 | NE 6 | NE 4 | NE 6 |
31 | 17 | 22 | 23 | 21 | — | 43 | — | — | — | 1 | 2 | — | — | 8 | 8 | 11 | 18 | 15 | 15 | 98 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 24 | 9 | 9 | 9 | 24 | 9 | 6 | 62 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 9 | 30 | 213 | 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.










