Surf Forecast Surf Report
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Surf Forecasts
Onjuku surf break

Onjuku surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 am Wednesday 09 Apr 2025 JST
Forecast update in hr  min  s Forecast update imminent
Onjuku surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Onjuku sea temperature is
15.8° C
 (Which is 1.9°C colder than average for this time of year)

How big are the waves at Onjuku today?

The current surf forecast for Onjuku at 9AM is: 0.8m 7s primary swell from a South-southwest direction and 0.6m 8s secondary swell from a East-southeast direction (forecast issued at 02:00am April 09). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (09 Apr)2.5ft (0.8m)7s
Afternoon (09 Apr)2ft (0.6m)10s
Evening (09 Apr)2.5ft (0.8m)10s

Table - waves today at Onjuku. (Swell directed towards the surf break)

Hourly12 Days
Chiba Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM
Rating
(10 max)
0
1
1
1
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
1
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.5
SSW
2
SW
1
SSW
0.8
SSW
0.5
E
0.6
E
0.6
E
0.8
ESE
0.6
E
0.6
E
0.5
E
0.5
E
1.1
S
0.7
ENE
0.7
ENE
0.7
ENE
0.7
ENE
0.7
E
0.6
ENE
0.5
ENE
1.3
SSW
1.2
SSW
1.2
S
1.3
S
1.6
S
1.3
S
1.1
S
0.6
ESE
0.6
ESE
0.6
ESE
0.6
ESE
1.1
ENE
0.7
SE
0.9
SE
1.1
SE
1.2
SSE
1.4
SSE
3
SSE
3.5
SSE
3.5
SSE
2.5
SSE
1.8
SE
1.9
SSW
2
SSW
2.2
SSW
2
SSW
1.8
SSW
2.1
SSW
1.5
ESE
1.5
ESE
1.5
ESE
1.5
ESE
1.3
ESE
1.3
ESE
2.5
SW
1.2
E
1.2
E
1.2
E
1.2
E
1.2
E
Period(s) (?)77771110101010101111511111010101010666666699996778768999988888811121212121281212121212
Wave
Graph
(?)Metric surfscale
Energy (?)2184001117056767312568715757609910110810698776012111910812420213694555556559149861571161551187166817161072528516549666554403494558583609609528537765425432432425425
Wind
(km/h)
35
WSW
10
W
15
NNE
20
N
20
ENE
20
E
15
E
15
E
10
SE
15
SSE
20
S
25
S
25
S
25
SSW
25
SSW
30
SSW
20
SSW
15
SW
20
SW
25
SW
25
SSW
15
SSW
5
SSE
5
N
15
N
25
NNE
25
NNE
25
NE
25
NE
25
ENE
15
ENE
15
E
15
E
15
SE
15
SE
20
SSE
25
S
35
S
45
S
30
SW
35
SW
40
SW
40
SW
40
SW
45
SW
45
SW
35
SSW
50
SSW
50
SW
40
SW
30
SW
40
SW
35
SW
30
SW
25
SW
25
SW
30
SW
25
WSW
15
NW
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrossoffoffcross-
off		crosscrosscross-
off		cross-
on		cross-
on		onononononcross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		ononoffoffoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscross-
on		cross-
on		cross-
on		onononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
off		cross-
on
High Tide
/ height (m)
3:13AM
1.25
2:27PM
1.20
3:26AM
1.29
3:16PM
1.27
3:41AM
1.32
3:56PM
1.33
3:57AM
1.36
4:33PM
1.36
4:13AM
1.39
5:08PM
1.38
4:30AM
1.41
5:43PM
1.36
4:48AM
1.42
6:18PM
1.33
5:08AM
1.42
Low Tide
/ height (m)
8:57AM
0.77
8:56PM
0.45
9:23AM
0.63
9:28PM
0.48
9:48AM
0.49
9:56PM
0.52
10:14AM
0.37
10:22PM
0.58
10:40AM
0.27
10:47PM
0.65
11:07AM
0.20
11:11PM
0.72
11:36AM
0.17
11:33PM
0.79
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Sunrise--5:15-------5:13-------5:13-------5:11-------5:09-------5:09-------5:07-------5:05-
Sunset------6:05-------6:06-------6:07-------6:07-------6:07-------6:08-------6:09-----
clearclearclearclearclearclearclearpart cloudcloudcloudcloudpart cloudcloudcloudcloudlight rainlight raincloudcloudlight rainlight raincloudpart cloudthunderstorm part cloudclearpart cloudpart cloudpart cloudclearclearpart cloudpart cloudpart cloudcloudcloudlight rainmod rainlight rainrain showersclearpart cloudclearclearclearclearpart cloudthunderstorm rain showersclearclearclearclearclearclearclearcloudpart cloudclearclear
Rain (mm)
---------------12--11--1------------3831-------12-----------
Temp. °C171413151615141414141516161716161514151516161615141313141515141414141516161516161615151718171517171515151616151514131214
Feels °C (?)101110101111101011111111111312111211111112141614118891011111211121313121081010779998888978991088911
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>

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 Onjuku 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.

View detailed surf forecast for Onjuku at:
surf-forecast.com

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