Ohara surfForecast / Chiba / Japan

information circle12 Day Weather and Surf, issued 2 am Friday 12 Dec 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
20.5° 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 (Dec 13) at 9PM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.3m and 11s. Another secondary swell of 1.1m and 5s is also forecast. 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 3.0m 11s and forecast to arrive on Sunday (Dec 14) 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 2.1m 9s period and expected on Monday (Dec 15) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 13th Dec)3.5ft (1.1m) 5s
Best Surf 3PM (Sun 14th Dec)10ft (3.0m) 10s
Most Powerful 9PM (Sun 14th Dec)10ft (3.0m) 11s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 27mm), heaviest during Sat night. Very mild (max 12°C on Sun afternoon, min 5°C on Fri night). Winds decreasing (fresh winds from the NNW on Fri morning, light winds from the NE by Sat morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 13°C on Wed afternoon, min 8°C on Mon night). Wind will be generally light.

Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
1
0
0
0
0
!
2
0
0
1
0
1
1
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.5
ESE
0.8
NE
1.4
NE
1.1
NE
0.6
ESE
0.5
E
2.2
SE
3
SE
2.5
SSE
1.1
SSW
0.8
SSW
0.7
NE
0.7
NE
0.6
ENE
1.2
SW
0.6
SSW
0.4
ENE
0.4
SE
0.4
ENE
0.4
ENE
0.4
ENE
Period(s) (?)10999121191010101011111278119161614
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6291307193109647201697140622610712112888131434021878370
Wind
(km/h)
40
NNW
30
NNW
15
N
10
NNE
15
NE
25
NW
15
N
15
WNW
20
W
25
NNW
20
NNW
5
NW
15
NW
15
WSW
10
WNW
5
WNW
10
N
20
NNE
25
NE
25
NE
10
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononononcross-
on
cross-
on
oncrosscrosscross-
on
onglasscross-
on
cross-
off
crosscross-
on
ononcross-
on
cross-
on
on
High Tide
/ height (m)
10:24AM
1.22
9:52PM
0.99
11:03AM
1.23
12:06AM
0.96
11:41AM
1.25
1:50AM
1.02
12:18PM
1.28
2:58AM
1.11
12:55PM
1.30
3:46AM
1.19
1:32PM
1.33
4:25AM
1.25
2:10PM
1.36
Low Tide
/ height (m)
4:44PM
0.80
3:55AM
0.66
6:04PM
0.67
4:53AM
0.79
7:02PM
0.54
6:02AM
0.89
7:48PM
0.41
7:11AM
0.96
8:27PM
0.31
8:10AM
0.99
9:03PM
0.22
8:57AM
1.01
9:39PM
0.15
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Sunrise6:35--6:37--6:37--6:37--6:39--6:39--6:39--
Sunset-4:25--4:25--4:25--4:27--4:27--4:27--4:28-
part cloud
cloud
part cloud
cloud
light rain
heavy rain
mod rain
rain showers
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
cloud
part cloud
part cloud
Rain (mm)
----11961-------------
Temp. °C886710118121111121011121112131291011
Feels °C (?)-2-10348446456888898347
  • 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 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.

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