Ohara Surf Break

Lat Long: 35.25° N 140.40° E

Ohara Surf Forecast and Surf Report

Issued: 8 am 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ohara sea temperature is
26.7° C
0.1° 

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


Ohara surf forecast from 15 Aug 2026:

  • Best quality surf: Monday 17 Aug, 9AM (local time) - 3.5ft (1.1m), 9s period, E swell with cross-offshore winds.
  • Most powerful swell: Saturday 15 Aug, 9PM (local time) - 5ft (1.5m), 10s period, ESE swell with 391 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 9AM (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 9AM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.4m and 8s. 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 1.5m 10s and forecast to arrive on Saturday (Aug 15) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 6s period and expected on Saturday (Aug 22) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Mon 17th Aug)3.5ft (1.1m) 9s
Best Surf 9AM (Mon 17th Aug)3.5ft (1.1m) 9s
Most Powerful 9PM (Sat 15th Aug)5ft (1.5m) 10s

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


The Lowdown

Alright, grab your board and listen up. It's Rusty here, and I’ve been staring at the charts for the next couple of weeks. It’s gonna be a real mixed bag, so let’s get into it.

This stretch starts off a bit slow. Saturday the 15th and Sunday the 16th are looking pretty average, with a small, short-period ESE swell around 5 ft to 5 ft. The wind is a cross-shore, which is alright, but it's kicking up a slight chop and the wave energy is moderate. The water temp is sitting right around 80°, which is bang on average for this time of year. Not terrible, but nothing to get excited about.

We get a bit of a window on Monday the 17th. It's not a big swell, only 3 ft from the ESE, but the wind goes light and cross-offshore, cleaning things up nicely. The wave energy is still moderate, and the conditions are rated as clean. It’ll be a fun little session on a small board, but it’s nothing to write home about. After that, the week from Tuesday the 18th through Thursday the 20th is pretty flat and weak, with small, short-period, knee-high slop and mostly cross-shore wind. Not worth paddling out for.

Friday the 21st into Saturday the 22nd, things get interesting. The swell stays small, around 4 ft, but the wind goes offshore. Friday has a bit of a risk of thunderstorms, but it's clean. Saturday the 22nd is the real standout of the first week. The wind is a solid, moderate offshore from the SSW, the swell is 4 ft from the SE with a period of 9 seconds, and the wave energy is moderate. The conditions are clean and the forecast is for good surf. This is your best bet for a clean, organized wave all week.

Then we hit a weird gap. Sunday the 23rd is building, but the real standout is the Sunday afternoon session. The swell jumps to 4 ft from the SE, but the period stretches to 17 seconds – that’s a proper, long-period groundswell. The wind is a clean offshore, and the wave energy is moderate. This is a promising one, but it’s a week out, so keep an eye on it.

Now, get ready for the big boys. Monday the 24th of August is a major event. We’re looking at a solid 8 ft swell from the SE, with a long period of 16 seconds and a massive wave energy. The wind is a clean, cross-offshore. This is expert territory. That size, with that period, on a beach break? It’s going to be a washing machine. Look for a point or a reef if you’re not an absolute charger. The quality is rated as marginal, likely due to the sheer size and power. This is the biggest, most powerful swell of the whole forecast.

Tuesday the 25th is a write-off. The swell is still big (8 ft) but the wind cranks onshore from the NNE at 22 mph, making it a lumpy, blown-out mess. Wednesday and Thursday the 26th and 27th see the swell drop back down to a more manageable 5 ft to 5 ft, and the wind improves, offering some cleaner, cross-shore conditions with moderate wave energy. Friday the 28th looks decent with a clean offshore wind and a 5 ft swell from the ENE, but the period is a short 7 seconds.

The final weekend, the 29th and 30th, is a bit of a fade-out. The swell drops to less than 2 ft, but the period is very long (13-19 seconds) on Sunday the 30th, with a high wave energy. The wind is unfortunately cross-onshore, so it’ll be choppy. There’s energy in the water, but it won’t be pretty.

The Bottom Line: The best window for clean, fun waves is Saturday the 22nd. The big, powerful groundswell on Sunday the 23rd afternoon is the most promising, but it's a week away. Monday the 24th is for experts only, with a massive, powerful swell. Everything else is a gamble.

Rusty

Short Range Forecast

Light rain (total 2mm), mostly falling on Sun night. Warm (max 27°C on Sat morning, min 24°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Tue morning, min 24°C on Tue night). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
1
0
1
2
1
0
0
0
0
0
0
0
0
2
2
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
ESE
10
1.5
ESE
9
1.3
ESE
9
1.4
E
10
1.2
E
8
1.2
E
9
1.1
E
9
1
E
8
1
E
8
1
E
8
0.9
ESE
8
1
ESE
7
1
E
7
1
E
7
0.9
E
8
1.1
E
8
1.2
ESE
8
1.4
ESE
8
1.2
ESE
8
1.1
ESE
7
0.8
S
10
Wave Graph
Metric surfscale
Energy kJ
435
367
308
356
200
230
186
144
144
134
101
99
106
88
89
146
187
237
155
121
130
Wind (km/h)
15
E
15
E
10
ENE
15
E
15
E
15
E
10
ESE
10
ESE
10
E
10
ENE
15
E
10
ENE
15
NE
15
E
10
ENE
15
ENE
15
ESE
10
ESE
10
ESE
10
SE
10
SSE
Wind State
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
6:15PM1.39m
6:04AM1.38m
6:35PM1.39m
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
Low Tide
11:52AM0.24m
00:09AM0.53m
12:20PM0.38m
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
clear
clear
part cloud
clear
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:56
4:58
4:58
5:00
5:01
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:28
6:27
6:25
6:23
6:22
6:22
6:21
 mm
2
2
Temp °C
27
26
25
26
26
25
27
26
25
27
27
25
26
27
25
27
27
25
27
27
26
Feels °C
28
27
27
26
27
27
29
28
27
29
29
28
28
29
28
29
29
27
29
29
30
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Ohara:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ohara surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest