Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 am Tuesday 19 May 2026 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
20.0° C
(Which is slightly cooler than normal)

How big are the waves at Mera today?

The current surf forecast for Mera at 7AM is: 0.6m 11s primary swell from a Southeast direction and 0.7m 9s secondary swell from a East direction, 0.4m 3s secondary swell from a West-southwest direction (forecast issued at 02:00am May 19). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (19 May)2ft (0.6m)11s
Afternoon (19 May)2.5ft (0.7m)11s
Evening (19 May)2.5ft (0.8m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 19mm), heaviest on Thu afternoon. Warm (max 22°C on Wed night, min 15°C on Thu night). Winds increasing (calm on Thu morning, strong winds from the NNE by Thu night).

Tuesday
19
Wednesday
20
Thursday
21
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.8
E
8
0.8
E
9
0.6
SE
11
0.6
SE
11
0.7
SE
10
0.7
SE
11
0.7
SE
10
0.8
SE
10
0.9
ESE
10
1
SE
10
1.1
SE
10
0.9
SE
10
1
SE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
1
SE
10
0.9
ESE
10
0.9
ESE
10
1.7
SSW
6
1.6
SSW
7
1.6
SSW
7
1.5
SSW
7
1.4
SSW
7
Wave Graph
Metric surfscale
Energy kJ
90
99
92
92
108
110
102
115
178
196
229
151
192
168
161
157
177
142
142
218
230
232
231
203
Wind (km/h)
20
SSW
20
SSW
25
SW
25
SW
25
SSW
30
SSW
30
SSW
25
SW
25
SW
25
SW
25
WSW
25
SW
30
SW
30
SW
25
SW
25
SW
20
SW
20
SW
20
SSW
15
WNW
5
WSW
15
NNW
35
NNE
30
NNE
on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
cross-on
glassy
cross-off
cross-off
cross-off
High Tide
4:50AM1.48m
7:31PM1.35m
5:28AM1.45m
8:25PM1.29m
6:11AM1.37m
Low Tide
11:38PM0.90m
12:12PM-0.21m
00:19AM0.94m
12:59PM-0.13m
1:04AM0.96m
1:49PM-0.01m
clear
clear
clear
clear
clear
clear
clear
cloud
clear
clear
clear
cloud
cloud
cloud
part cloud
cloud
light rain
cloud
light rain
light rain
light rain
light rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:35
4:33
4:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:38
6:39
6:39
2
1
2
2
3
5
Temp °C
20
20
19
20
20
21
20
20
20
20
20
21
21
21
21
21
21
21
22
20
19
18
16
15
19
18
17
18
18
19
17
18
18
18
19
20
18
19
20
20
21
20
22
21
21
17
11
10
Swell 1
Height (m)
Direction
Period (s)
0.8
E
8
0.8
E
9
0.7
E
9
0.7
E
9
0.7
SE
10
0.7
SE
11
0.7
SE
10
0.8
SE
10
0.9
ESE
10
1
SE
10
1.1
SE
10
0.9
SE
10
1
SE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
1
SE
10
0.9
ESE
10
0.9
ESE
10
1.2
SSW
6
1.3
SSW
7
1.6
SSW
7
1.5
SSW
7
1.4
SSW
7
Energy kJ
90
99
78
81
108
110
102
115
178
196
229
151
192
168
161
157
177
142
142
108
152
232
231
203
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
11
0.6
SE
10
0.6
SE
11
0.6
SE
11
0.7
E
9
0.7
E
9
0.6
E
9
0.6
E
10
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.6
E
10
0.1
NE
9
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.8
ESE
10
0.8
ESE
10
0.8
ESE
10
0.7
ESE
10
0.6
ESE
10
Energy kJ
40
80
92
92
78
79
60
77
3
3
3
70
3
3
3
3
3
3
2
117
115
105
83
74
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
7
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.3
NE
9
0.1
NE
9
0.1
NE
8
0.1
NE
8
0.1
NE
7
0.3
NE
6
0.6
ESE
10
Energy kJ
12
3
3
3
3
3
13
3
2
2
2
5
74
Wind waves
Height (m)
Direction
Period (s)
0.4
SW
3
0.4
SW
3
0.4
WSW
3
0.4
WSW
3
0.4
SW
3
0.6
SW
3
0.6
SW
4
0.6
SW
4
0.6
SW
4
0.6
SW
4
0.6
WSW
4
0.5
SW
3
0.6
SW
4
0.6
SW
4
0.6
SW
4
0.6
SSW
4
0.4
SW
3
0.6
SSW
4
0.9
SSW
5
1.7
SSW
6
1.6
SSW
7
0.4
NNW
3
0.3
NNW
3
0.9
NE
4
Energy kJ
2
3
3
4
3
6
8
8
10
10
8
6
10
12
12
9
3
13
43
218
230
4
2
21
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
1
1
1
2
2
3
2
1
Distance (km)
87
73
73
87
529
529
504
73
73
73
70
70
204
87
87
73
74
64
69
12
0
12
88
57
Best forecast wave conditions in Chiba
Rating
(10 max)
1
2
1
1
1
2
3
3
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
3
3
2
3
Header Global
Rating
(10 max)
5
5
4
4
4
4
4
4
5
4
5
5
5
4
5
5
4
5
5
4
4
5
5
4
  • 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

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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest