Ohara Surf Break

Lat Long: 35.25° N 140.40° E

Ohara Surf Forecast and Surf Report

Issued: 2 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ohara sea temperature is
27.0° C
0.4° 

Ohara surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Ohara surf forecast from 9 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 6PM (local time) - 10ft (3.0m), 11s period, E swell with cross-onshore winds.
  • Most powerful swell: Saturday 15 Aug, 3PM (local time) - 10ft (3.0m), 12s period, E swell with 2,344 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 12PM (local time) - 5ft (1.5m), 11s 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 (Aug 11) at 12PM. The primary swell is predicted to be 1.5m and 11s 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 3.0m 12s and forecast to arrive on Saturday (Aug 15) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Tuesday (Aug 11) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Tue 11th Aug)5ft (1.5m) 11s
Best Surf 6PM (Sat 15th Aug)10ft (3.0m) 11s
Most Powerful 3PM (Sat 15th Aug)10ft (3.0m) 12s

Table - best surf conditions forecast for Ohara over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a proper look at what the ocean’s got cookin’ for Ohara over the next couple of weeks.

Right off the bat, we’ve got a bit of a slow start. Sunday afternoon is the first chance we get, but honestly, it’s a bit of a mixed bag. The swell is a solid 6 ft out of the ESE with a decent 13-second period – that’s some real groundswell energy there, with a combined energy of 1134 – but that wind is sidelong off the E at 9 mph, putting a bit of a cross-chop on it. The water’s a warm 81°, pretty much spot on for this time of year. It’s rideable, but it’s not the standout.

Monday and Tuesday are a write-off, I’m telling ya. That swell bumps up to over 7 ft on Monday, but it’s gettin’ hammered by a stiff NNE breeze over 18 mph. The ocean’s gonna be a lumpy, choppy mess. Not worth paddling out.

Now, look here. Wednesday the 12th is where we might see a little glimmer. The swell drops to 4 ft from the E, period’s a short 10 seconds, but the wind swings around to an ESE cross-off at 12 mph. The report says the water’s clean, and that’s the key. It’s small, energy’s down at 517, but if you’ve got a log, it could be a fun, uncrowded morning. Might be a risk of t-storms, though.

The big one, the real standout, is shaping up for Sunday the 16th. It’s not huge – 5 ft from the E with a 10-second period – but look at that wind: a light ESE cross-off at 6 mph. That’s about as glassy as it gets. Combined energy of 505, and the forecast is calling for *very good* surf conditions. This is the pick of the first week for a clean, longboard-friendly session. Expect the crowds to be *sometimes* there, but for conditions this sweet, it’s a no-brainer.

We’ve got another little gap in the middle of the week before things get real interesting. Tuesday the 18th is a beauty. The swell jumps back up to 6 ft from the ESE, period is a short 9 seconds, but the wind goes cross-off from the SW at 9 mph. Clean again. Then Tuesday afternoon, it gets even better: 7 ft from the E with a stiff offshore SSW breeze at 12 mph. That’s proper offshore winds, folks. Clean, lined-up, punchy waves. Energy is at 744. If you’re an intermediate, this is your window.

After that, the energy starts to fade through the week, dropping below 3 ft by the 20th and into tiny, clean but weak surf. That’s fine for a splash, but not for a mission.

Then, hold onto your board – we’re looking at the 22nd and 24th. Saturday the 22nd brings in a new swell. 3 ft from the south? No, check that – the morning shows a 3 ft from the S, period 12 seconds, energy 340. Clean and light winds. Then the afternoon is more interesting: 5 ft from the SSW with a 13-second period, energy at 831. That’s a long-period groundswell turning on. The wind is cross-off, so it should be clean. This is a promising, deep-water swell that will work best if the sand’s held up at Ohara.

The final shout goes to Monday the 24th. We’ve got 6 ft from the SSE, a 10-second period, and a strong SW cross-off wind at 15 mph. The combined energy is a healthy 1215. That’s a lot of power. For a beach break, that’s getting into expert territory, and the stiff wind will keep the surface clean but make paddling a workout. This one is for the crew who know what they’re doing.

So, to sum it up: The standout is Sunday the 16th for glassy, clean, user-friendly waves. If you want a bit more power and an offshore groom, Tuesday the 18th is your day. The late window on the 22nd and 24th is promising but further out, so keep an eye on it.

Signing off – Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Tue night. Warm (max 28°C on Tue morning, min 22°C on Mon night). Winds decreasing (fresh winds from the NE on Mon afternoon, light winds from the WSW by Tue morning).

Days 5-7 Weather Summary

Heavy rain (total 38mm), heaviest during Thu night. Warm (max 28°C on Thu morning, min 24°C on Wed night). Wind will be generally light.

Sun
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
0
0
0
0
2
0
3
2
1
0
0
0
0
0
0
0
0
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
ESE
13
1.6
ESE
12
2.1
E
12
2.1
E
11
2.2
ENE
10
1.9
ENE
10
1.6
E
11
1.3
ENE
11
1.3
E
10
1
E
9
1.1
E
9
1.4
E
9
1.5
E
10
1.7
E
10
1.9
E
10
1.7
E
10
1.7
E
10
2.3
E
11
3
E
12
2.1
E
10
Wave Graph
Metric surfscale
Energy kJ
903
794
1227
1095
860
739
663
427
312
162
196
318
400
580
682
533
567
1201
2344
890
Wind (km/h)
15
E
15
NNE
30
NNE
30
NE
30
NNE
15
N
20
NNW
20
S
20
ESE
15
ENE
10
NNE
20
NNE
25
NE
20
NE
20
N
20
NE
20
N
30
NNE
25
NE
10
SE
Wind State
cross
cross-on
cross-on
cross-on
on
on
on
off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
cross-on
cross-off
High Tide
4:05PM1.23m
00:13AM1.33m
4:26PM1.30m
1:39AM1.38m
4:49PM1.34m
2:45AM1.44m
5:12PM1.36m
3:41AM1.48m
5:34PM1.37m
4:31AM1.49m
5:55PM1.38m
5:18AM1.46m
6:15PM1.39m
Low Tide
7:30PM1.17m
8:32AM0.12m
8:49PM1.11m
9:24AM0.04m
9:36PM1.00m
10:08AM0.01m
10:16PM0.88m
10:46AM0.04m
10:53PM0.75m
11:21AM0.12m
11:31PM0.63m
11:52AM0.24m
00:09AM0.53m
part cloud
part cloud
clear
part cloud
part cloud
part cloud
rain showers
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:52
4:54
4:54
4:54
4:56
4:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:34
6:32
6:31
6:30
6:30
6:29
6:28
 mm
1
8
5
2
5
1
17
2
6
1
4
1
2
Temp °C
27
25
26
26
24
28
27
25
26
27
25
28
28
26
25
26
25
26
26
26
Feels °C
28
27
25
25
22
28
25
25
27
28
27
29
28
28
26
27
27
26
26
31
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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