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 Thursday 01 May 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
16.2° C
 (Which is 3.0°C colder than average for this time of year)

How big are the waves at Onjuku today?

The current surf forecast for Onjuku at 4AM is: 0.6m 8s primary swell from a Southeast direction and 0.4m 10s secondary swell from a Northeast direction, 0.3m 3s secondary swell from a South direction (forecast issued at 02:00am May 01). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (01 May)2.5ft (0.7m)9s
Afternoon (01 May)2ft (0.6m)8s
Evening (01 May)1.5ft (0.5m)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 
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
3
3
3
3
2
2
1
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
0
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
SE
0.6
SE
0.6
SE
0.7
SE
0.7
ESE
0.6
ESE
0.5
NE
0.5
NE
0.5
NE
1.1
SE
1.6
SE
1.7
SE
1.7
SE
1.7
SE
2.1
SE
1.6
SSE
2.1
SE
2.1
SE
2.1
SE
2.1
SE
2.1
SE
1.9
SE
2
ESE
1.8
ESE
1.7
ESE
1.5
ESE
1.4
ESE
1.3
ESE
1.2
ESE
1.7
SSW
1.5
SSW
1.2
SSW
1
ESE
1
ESE
1
ESE
0.9
ESE
1
E
0.9
ESE
0.9
ESE
0.9
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.9
ESE
1
ESE
0.8
ESE
0.8
ESE
0.8
ESE
0.9
ESE
1
E
1
E
0.9
E
0.9
E
0.8
E
1
S
1.1
S
0.7
ESE
0.6
ESE
0.7
ESE
Period(s) (?)8899981010106667778889999991099997781010101010109999999999999999977999
Wave
Graph
(?)Metric surfscale
Energy (?)4853597965474848588016723024825347931457464073176770563966058452238531527422727323718919319719716318415014714711811811811814416411511311314916916513012710192107806170
Wind
(km/h)
10
SSW
10
S
15
SSE
20
SSE
15
SSE
20
SSE
20
SSE
20
SSE
20
SSE
20
SE
25
SSE
25
SSE
30
SE
30
SSE
20
SSE
10
S
5
ENE
10
NNE
10
N
15
NE
15
ENE
15
E
15
E
10
SSE
25
SSW
25
SW
25
SW
30
SW
35
SW
40
SW
35
SW
15
W
30
NE
15
N
15
N
10
NNW
15
SSW
20
SSW
20
S
20
SSE
25
SE
20
SE
15
S
15
SSW
20
SSW
20
S
10
ESE
25
ESE
15
E
15
ENE
15
NNE
15
NNE
10
NE
10
ESE
10
S
15
SSW
20
SW
15
WSW
20
NNE
15
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononononononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		onononglassoffoffcross-
off		cross-
off		crosscrossoncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
off		offoffcross-
off		onononcross-
on		cross-
on		cross-
on		ononononcross-
on		cross-
on		crosscross-
off		offoffcross-
off		crossononcross-
on		crossoffcross-
off
High Tide
/ height (m)
5:13AM
1.52
8:11PM
1.25
5:45AM
1.47
9:23PM
1.17
6:20AM
1.39
11:02PM
1.13
7:00AM
1.27
12:31AM
1.14
8:11AM
1.13
1:09AM
1.17
11:02AM
1.04
1:34AM
1.20
1:04PM
1.06
1:55AM
1.24
Low Tide
/ height (m)
11:50PM
0.98
12:45PM
-0.01
12:19AM
1.04
1:34PM
0.10
12:50AM
1.08
2:30PM
0.24
1:41AM
1.10
3:38PM
0.38
4:28AM
1.09
4:59PM
0.49
6:56AM
0.95
6:16PM
0.56
7:45AM
0.79
7:16PM
0.61
8:19AM
0.64
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Sunrise--4:48-------4:47-------4:46-------4:45-------4:43-------4:43-------4:41-------4:41-
Sunset------6:22-------6:23-------6:24-------6:24-------6:25-------6:27-------6:28-----
clearclearclearclearclearclearclearclearpart cloudcloudcloudrain showerslight rainmod rainlight rainlight rainpart cloudcloudcloudcloudpart cloudpart cloudclearpart cloudpart cloudpart cloudpart cloudcloudcloudclearclearclearclearclearclearclearclearclearclearclearclearcloudcloudcloudcloudlight rainlight rainlight raincloudlight raincloudcloudpart cloudpart cloudpart cloudpart cloudclearclearcloudpart cloud
Rain (mm)
-----------11622-----------------------------132-1----------
Temp. °C171717181818171717171717171616171616161617171716171718192020191815141417181717171717171818161315161616171818181717161616
Feels °C (?)1616151515151414141313131212131717151514141516151313141515151415910913131113131213151515131211141515161818181615151414
  • 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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