Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Sunday 14 Dec 2025 JST
Forecast update in hr  min  s Forecast update imminent
Mera surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mera sea temperature is
20.1° C
(Which is normal for this time of year)


How big are the waves at Mera today?

The current surf forecast for Mera at 11AM is: 3.0m 9s primary swell from a South-southeast direction and 0.5m 11s secondary swell from a East direction (forecast issued at 08:00am December 14). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (14 Dec)5ft (1.6m)7s
Afternoon (14 Dec)13ft (4.0m)10s
Evening (14 Dec)13ft (4.0m)9s

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

Updates in  hr  min  s Forecast update imminent
Sunday
14
Monday
15
Tuesday
16
Wed
17
6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM
Rating
(10 max)
1
0
2
0
0
0
0
0
4
3
2
2
2
1
1
1
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.5
SE
1.6
SE
3
SSE
4
S
4
SW
4
WSW
4
WSW
3.5
WSW
3
WSW
1.7
WSW
1.4
SW
1.2
WSW
1.1
SW
1
WSW
0.8
WSW
0.7
WSW
0.6
SE
0.5
SE
0.5
SE
0.6
WSW
0.6
WSW
1.4
WSW
1.8
WSW
1.8
WSW
Period(s) (?)7791099999999888888866677
Wave
Graph
(?)Metric surfscale
Energy kJ (?)204285151330462680274822491755156949732320215813678504535343126155299298
Wind
(km/h)
20
NNE
30
NNE
30
N
35
WSW
65
WSW
55
W
55
W
40
W
10
N
10
N
10
NNE
10
ENE
15
ENE
25
NE
20
NE
25
NNE
25
NNE
20
N
10
NW
5
SW
10
W
15
W
15
WNW
15
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffcross-
off
cross-
off
cross-
off
glasscross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
11:54AM
1.26
1:56AM
1.05
12:34PM
1.30
3:03AM
1.14
1:14PM
1.33
Low Tide
/ height (m)
5:21AM
0.76
7:18PM
0.52
6:29AM
0.86
8:04PM
0.38
7:33AM
0.92
8:42PM
0.26
Sunday
14
Monday
15
Tuesday
16
Wed
17
Sunrise-6:39-------6:39-------6:39------
Sunset---4:30-------4:30-------4:30----
light rain
heavy rain
rain showers
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
31315---------------------
Temp. °C81011151413121111121213121110999101112121111
Feels °C (?)345801-117889643233699867
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Latest Updates

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 Mera 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.


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