Ohara Surf Forecast

/ Chiba (19 surf breaks) /

Japan (129 surf breaks) / Lat Long: (35.25° N 140.40° E)

Surf Forecasts:

Ohara surfForecast / Chiba / Japan

12 Day Weather and Surf, issued 2 am Friday 19 Sep 2025 JST

Forecast update in hr min s Forecast update imminent

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

Today's Ohara sea temperature is 26.3° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Ohara this week:

The surf forecast for Ohara over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 20) at 12PM. The primary swell is predicted to be 0.8m and 5s 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 12 days are 1.7m 10s and forecast to arrive on Tuesday (Sep 23) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Sunday (Sep 21) at 3PM.

Wave Type	Time (JST) & Date	Wave Height & Period
Next good surf (1 star+)	12PM (Sat 20th Sep)	2.5ft (0.8m) 5s
Best Surf	6AM (Thu 25th Sep)	6ft (1.9m) 8s
Most Powerful	12PM (Tue 23rd Sep)	5.5ft (1.7m) 10s

Table - best surf conditions forecast for Ohara over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 4mm), mostly falling on Fri morning. Warm (max 28°C on Sun morning, min 20°C on Fri morning). Winds increasing (light winds from the E on Sat morning, strong winds from the SW by Sat night).									Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Tue morning, min 21°C on Mon morning). Winds decreasing (fresh winds from the NE on Mon afternoon, calm by Wed night).
	Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	2	3	2	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	ENE	ENE	ENE	E	E	E	E	E	ESE	ENE	ENE	ENE	E	E	E	E	ESE	ESE	SE	ESE	ESE
Period(s) (?)	6	6	6	6	6	8	8	8	8	7	6	7	10	10	9	8	8	8	8	8	9
Wave Graph (?)
kJ (?)	160	87	69	49	41	177	133	108	68	241	175	327	544	541	355	309	383	439	438	319	227
Wind (km/h)	NE	NE	ENE	E	SSE	SSW	WSW	ENE	ENE	NE	NE	NE	NE	NE	ENE	ENE	ENE	E	SSW	S	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	cross	cross- off	cross- off	cross- off	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross	glass	off	cross- off
High Tide / height (m)		3:48PM 1.29	2:49AM 1.32		4:04PM 1.32		3:35AM 1.38	4:19PM 1.35		4:15AM 1.40	4:36PM 1.38		4:53AM 1.41	4:52PM 1.40		5:29AM 1.38	5:08PM 1.41		6:05AM 1.34	5:25PM 1.42
Low Tide / height (m)			9:18PM 0.78	9:32AM 0.29		9:46PM 0.64	10:02AM 0.33		10:14PM 0.51	10:29AM 0.40		10:42PM 0.40	10:54AM 0.48		11:10PM 0.32	11:18AM 0.58		11:39PM 0.27	11:39AM 0.67		12:09AM 0.26

	Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24			Thursday 25
Sunrise	5:22	-	-	5:24	-	-	5:24	-	-	5:24	-	-	5:26	-	-	5:26	-	-	5:26	-	-
Sunset	-	5:40	-	-	5:38	-	-	5:37	-	-	5:36	-	-	5:35	-	-	5:32	-	-	5:31	-

Rain (mm)	3	-	-	-	-	-	-	-	1	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	21	23	24	25	26	26	28	26	23	23	23	22	24	24	23	24	24	24	24	25	24
Feels °C (?)	19	22	24	25	28	26	28	24	19	18	18	18	20	20	21	21	21	22	25	24	24

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Chiba

Wind Update Wind reports 14 km away suggest it is still onshore at Ohara (light winds from the N at Katsuura). 2.0m 6s windswell from the NE to make surfable waves.
1 hour 31 minutes ago Ohara

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1 h 31 min ago

17 km/h

Onshore

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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 12 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.