Ohara Surf Break

Lat Long: 35.25° N 140.40° E

Ohara Surf Forecast and Surf Report

Issued: 8 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ohara sea temperature is
27.1° C
0.3° 

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


Ohara surf forecast from 18 Aug 2026:

  • Best quality surf: Tuesday 25 Aug, 3AM (local time) - 8ft (2.5m), 16s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 9AM (local time) - 8ft (2.5m), 16s period, SSE swell with 3,182 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 12PM (local time) - 3ft (0.9m), 8s period with ESE 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 18) at 12PM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 10s. 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 2.5m 16s and forecast to arrive on Tuesday (Aug 25) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Sunday (Aug 23) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Tue 18th Aug)3ft (0.9m) 8s
Best Surf 3AM (Tue 25th Aug)8ft (2.5m) 16s
Most Powerful 9AM (Tue 25th Aug)8ft (2.5m) 16s

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


The Lowdown

Alright folks, Rusty here. Let’s get into it.

We’re looking at a pretty quiet start to the outlook at Ohara, with a long stretch of small, ordinary surf from Tuesday the 18th right through to the end of the week. The water is sitting at 81°, which is about average for the time of year, so no surprises there. The first few days are a real struggle – tiny waves around 1ft to 3ft just won’t get the heart pumping. Light winds keep things clean, but there’s just no grunt. The combined energy is weak, mostly below 200. It’s a waiting game.

Saturday the 22nd afternoon shows a flicker of life, with a gentle offshore wind and a clean 3ft ESE swell, but it’s still nothing to write home about. The real turnaround starts to brew on Sunday the 23rd afternoon, with a solid 3ft groundswell from the E and a clean offshore flow. The energy is picking up to 206, and it’s a sign of better things to come.

The standout window is Monday the 24th of August. The morning brings a solid 8ft SSE groundswell with a very long 16-second period, and the afternoon pushes it to 8ft. The combined energy jumps to a massive 3388. This is big, powerful groundswell. At this size, over 8ft, it’s strictly for experienced surfers. The wind is offshore in the afternoon, keeping it clean. This is the best on offer, full stop. The long period means it’ll be best on a reef or point, but the setup here is exposed.

Tuesday the 25th morning is a bit of a tease. The swell is predicted at 10ft with a glassy wind, but the file flags it as too big for this break. The afternoon drops back to 8ft and is still excellent for the pros. The energy stays high through Wednesday and Thursday, with 8ft to 8ft swells and clean conditions, but it’s all still in the expert-only zone.

After the 27th, the swell drops back to a more manageable 5ft to 6ft for the weekend, but the wind picks up, and by the 28th afternoon, a moderate cross-shore chop creeps in. The surf quality drops and the energy fades to 926. The 29th and 30th of August are messy, with strong winds and poor conditions. The 30th sees a short-period 7-second SE windswell that’s just a write-off with a strong breeze.

Looking way out, Monday the 1st of September brings another massive spike, with a 12ft SE swell, but again, it’s flagged as too big for the break. The energy reading is off the charts at 16067 on the 31st of August afternoon. This is a serious, serious swell, but not for paddling here. The outlook fades out on the 2nd of September with a 7ft SE swell and moderate energy, but the quality is marginal.

Rusty out.

Short Range Forecast

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

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Sun morning. Warm (max 27°C on Fri morning, min 25°C on Sat night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
1
1
0
1
1
1
1
1
1
1
1
1
2
2
1
1
2
3
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
ESE
8
0.7
E
8
0.6
E
8
0.4
SE
10
0.5
E
9
0.5
E
9
0.4
SE
10
0.4
SE
11
0.4
SE
11
0.6
E
8
0.6
E
8
0.7
E
9
0.8
E
9
1
E
10
1
E
10
0.9
E
10
0.8
E
10
0.9
SSE
14
1.5
SSE
16
2
SSE
16
2.3
SSE
16
Wave Graph
Metric surfscale
Energy kJ
119
61
47
35
36
36
39
40
40
49
50
81
110
200
204
154
117
332
1155
1982
2549
Wind (km/h)
10
SE
15
SE
10
SE
10
ENE
15
ESE
5
SSE
10
SE
15
SSE
10
SSW
10
S
15
SSW
10
SW
10
SSW
10
SSW
10
SW
5
SW
15
SSW
15
SW
20
SSW
20
S
15
SSW
Wind State
cross-off
cross-off
cross-off
cross
cross-off
glassy
cross-off
cross-off
off
off
off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
off
off
High Tide
7:14PM1.39m
8:31AM1.06m
7:35PM1.36m
9:55AM0.97m
7:57PM1.33m
8:25PM1.27m
9:20PM1.21m
4:18PM1.16m
11:48PM1.19m
4:09PM1.21m
1:23AM1.23m
Low Tide
1:05PM0.67m
2:11AM0.43m
1:20PM0.80m
3:02AM0.46m
1:21PM0.90m
4:11AM0.49m
5:46AM0.49m
7:17AM0.44m
7:38PM1.13m
8:17AM0.36m
8:41PM1.05m
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:58
5:00
5:01
5:01
5:01
5:03
5:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:23
6:22
6:22
6:21
6:19
6:17
6:16
 mm
2
2
2
2
4
2
Temp °C
27
27
26
27
27
25
27
27
26
27
27
26
27
27
26
27
27
26
27
27
26
Feels °C
29
29
29
29
29
28
29
28
29
30
28
29
30
30
30
31
30
29
28
28
28
  • Map Icons:
  • Break
  • 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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