Ohara Surf Break

Lat Long: 35.25° N 140.40° E

Ohara Surf Forecast and Surf Report

Issued: 8 pm 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ohara sea temperature is
27.0° C
0.2° 

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


Ohara surf forecast from 16 Aug 2026:

  • Best quality surf: Monday 17 Aug, 6AM (local time) - 3.5ft (1.1m), 9s period, E swell with cross-offshore winds.
  • Most powerful swell: Monday 24 Aug, 3AM (local time) - 2.5ft (0.8m), 16s period, SSE swell with 334 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 6AM (local time) - 3.5ft (1.1m), 9s 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 Monday (Aug 17) at 6AM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.4m 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 0.8m 16s and forecast to arrive on Monday (Aug 24) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Sunday (Aug 23) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Mon 17th Aug)3.5ft (1.1m) 9s
Best Surf 6AM (Mon 17th Aug)3.5ft (1.1m) 9s
Most Powerful 3AM (Mon 24th Aug)2.5ft (0.8m) 16s

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


The Lowdown

Hey folks, Rusty here. Let’s talk about what’s coming up at Ohara. Right now, things are pretty quiet, but there’s a slow build into some serious size later on if you know where to look and are prepared to wait for it.

We’ve got a bit of a gap to start. The first real surf we can count on rolls in on Monday the 17th. It’s not huge — just a 3.3 ft east swell with a 9-second period — but the combined energy is a modest 208, and we’ve got that light ESE cross-off breeze keeping it clean. For a quick paddle out that morning, it’s a solid little starter. That clean vibe holds through the afternoon, even if the swell stays small. The water’s about what you’d expect for this time of year, nothing unusual there.

Now, Tuesday the 18th and Wednesday the 19th? Pretty ordinary. The swell drops off, the wind gets a little messy, and scores are low. There’s not enough to get excited about, honestly. Best to leave the board in the car or go find something else to do. Thursday the 20th picks up again just a touch with a 2.6 ft swell from the ESE, but it’s only 7 seconds of period — short and a bit weak. Not worth calling in sick for.

But hold on — Friday the 21st is where it starts to feel like we’re back in business. The afternoon brings a 2.3 ft south swell, but that 11-second period gives it some real push, bumping the combined energy up to 240. We get offshore wind from the south at 12 mph, and the surface is clean. It’s not going to blow your mind, but it’s good, honest surf all of a sudden.

Saturday the 22nd keeps that window open. Morning and afternoon both show 3.3 ft swells from the ESE and east, periods around 10 seconds, and that solid SSW offshore breeze again at 12-16 mph. Combined energy sits around 248 to 299. It’s clean, it’s fun, and the wind is your friend. This is as good as the first week gets, so if you can get out, do it.

Then we hit a bit of a wind wall on Sunday the 23rd. A fresh 22 mph SW breeze crosses offshore, and while the swell is still 3.3 ft, it’s rough and the energy is washed out. Not your day. That carries through Monday the 24th, but here’s the twist — the swell starts to spike. We’re looking at 4.9 ft from the SSE with a 15-second period, and the combined energy jumps to 1544. That’s a strong pulse of groundswell, but with onshore wind and a risk of thunderstorms, it’s “marginal surf” at best for Ohara. It’s powerful, but not clean.

That energy keeps climbing into Tuesday the 25th and Wednesday the 26th. By Wednesday afternoon, we’re talking 8.2 ft from the SSE at 16 seconds, combined energy of 2992, and finally that offshore wind from the SSW at 12 mph makes an appearance. This is where things get serious. That’s a big, clean, powerful swell — and it’s only for experienced surfers. The wave height is over 8.2 ft, and the tide and wind line up for a solid session, but if you’re a beginner, stay on the sand.

Thursday the 27th is a standout, but with a major caveat. We’re seeing 9.8 ft from the south, period at 17 seconds — that’s very long period groundswell. Combined energy hits 5016. The wind is offshore and light, and the surface will be clean. But the swell is predicted to be too big for Ohara. This is a spot that struggles when it’s that big. The direction is south, which isn’t ideal for the break’s optimum SE exposure. If it starts to work, it’ll be heavy and walled up. Only for the brave and the skilled.

That oversized theme continues into the end of the month and into September. Friday the 28th and Saturday the 29th still have big swell — 8.2 ft to 6.6 ft — but the wind gets wild, especially Saturday with a near gale from the south at 37 mph. That’s not surfable; that’s survival conditions. By Sunday the 30th, we’ve got another 8.2 ft SE swell with a 16-second period, but it’s onshore and messy.

The final few days — August 31st and September 1st — are just massive. 11.5 ft to 19.7 ft swells, combined energy over 12,000 on the 1st, and all from the SSE. The wind is light and even offshore at times, which is rare, but this is way beyond what Ohara can handle comfortably. For all but the strongest, most experienced crew, it’s a pass.

So here’s the takeaway: the best, cleanest, most accessible surf comes on Saturday the 22nd — consistent 3.3 ft east-southeast swells with offshore

Short Range Forecast

Light rain (total 2mm), mostly falling on Sun night. Warm (max 27°C on Mon morning, min 25°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Thu morning, min 25°C on Wed night). Wind will be generally light.

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
2
1
0
1
1
0
0
1
0
1
1
1
2
2
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
E
9
1
E
9
1
E
9
0.9
ESE
8
0.9
ESE
8
0.7
E
8
0.6
E
8
0.6
E
8
0.5
E
9
0.6
ESE
7
0.6
ESE
7
0.8
ESE
7
0.9
ESE
7
0.5
E
8
0.7
S
11
0.9
ESE
10
1
ESE
10
1
E
10
1
E
10
Wave Graph
Metric surfscale
Energy kJ
230
154
151
115
109
65
47
52
38
37
37
65
62
36
121
163
193
196
204
Wind (km/h)
10
SE
10
ESE
15
E
10
ESE
10
E
10
ESE
5
ESE
10
ENE
15
E
0
SSE
10
E
15
SE
10
S
15
SSE
20
S
20
SSW
20
SSW
25
SSW
35
SSW
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross
glassy
cross
cross-off
off
off
off
off
off
off
off
High Tide
6:49AM1.29m
6:55PM1.40m
7:36AM1.17m
7:14PM1.39m
8:31AM1.06m
7:35PM1.36m
9:55AM0.97m
7:57PM1.33m
8:25PM1.27m
9:20PM1.21m
Low Tide
00:47AM0.46m
12:44PM0.53m
1:27AM0.43m
1:05PM0.67m
2:11AM0.43m
1:20PM0.80m
3:02AM0.46m
1:21PM0.90m
4:11AM0.49m
5:46AM0.49m
rain showers
part cloud
rain showers
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
4:58
5:00
5:01
5:01
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:27
6:25
6:23
6:22
6:22
6:21
6:19
 mm
1
1
Temp °C
25
27
26
26
27
27
25
27
27
25
27
27
26
27
27
26
27
27
27
Feels °C
27
29
27
29
29
30
28
29
29
29
30
29
29
30
28
28
27
27
27
  • 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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