Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 am Saturday 02 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
20.4° C
(Which is slightly warmer than usual)

How big are the waves at Mera today?

The current surf forecast for Mera at 11AM is: 2.2m 10s primary swell from a Southwest direction and 0.8m 9s secondary swell from a East-southeast direction (forecast issued at 02:00am May 02). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (02 May)8ft (2.5m)10s
Afternoon (02 May)6ft (1.8m)10s
Evening (02 May)6.5ft (2.0m)8s

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 10mm), heaviest on Mon morning. Warm (max 21°C on Sun night, min 15°C on Mon night). Winds increasing (calm on Sat night, gales from the SW by Sun night).

Saturday
2
Sunday
3
Monday
4
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
5
1
0
2
3
3
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
4
SW
9
4
SW
10
4
WSW
10
2.5
SW
10
2.1
SW
10
1.8
SW
10
1.6
SW
9
2
WSW
8
1.4
SW
8
0.9
ESE
10
0.8
ESE
10
0.9
ESE
10
0.8
ESE
10
0.8
ESE
9
1.4
SW
5
1.7
SSW
6
2.1
SSW
6
2.5
SSW
7
3.5
SSW
8
4.5
SW
9
4
SW
9
3.5
SW
9
3.5
SW
9
3.5
SW
9
Wave Graph
Metric surfscale
Energy kJ
2803
2784
3398
1234
817
561
427
512
226
135
125
132
103
100
98
178
333
697
1731
3051
2338
2195
1954
2150
Wind (km/h)
60
WSW
50
W
5
WNW
15
SSW
20
SSW
15
ESE
10
E
5
WSW
10
NE
15
E
10
SE
15
WSW
30
SW
35
SW
40
SW
40
SSW
45
SSW
65
SSW
70
SW
65
SSW
50
SW
50
SW
55
SW
55
WSW
cross-on
cross-on
cross-on
cross-on
on
cross-off
cross-off
glassy
off
cross-off
cross
cross-on
on
on
on
on
on
on
on
on
on
on
on
on
High Tide
3:57AM1.39m
5:38PM1.32m
4:22AM1.40m
6:15PM1.30m
4:47AM1.39m
6:52PM1.27m
Low Tide
10:24PM0.65m
10:49AM-0.01m
10:55PM0.70m
11:19AM-0.03m
11:26PM0.75m
11:50AM-0.02m
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
light rain
mod rain
rain showers
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:50
4:48
4:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:24
6:25
6:27
1
7
2
Temp °C
16
16
17
18
18
19
19
19
19
19
18
19
20
20
19
19
19
20
21
21
20
19
19
18
5
7
16
15
15
16
18
19
18
18
18
18
16
15
14
13
12
11
10
12
12
10
9
7
Swell 1
Height (m)
Direction
Period (s)
1.1
SE
8
0.9
SE
9
3.5
SW
10
2.5
SW
10
2.1
SW
10
1.8
SW
10
1.6
SW
9
1.5
SW
9
1.4
SW
8
1.1
SW
7
0.8
SW
7
0.9
ESE
10
0.8
ESE
10
0.8
ESE
9
0.7
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.5
ESE
9
0.5
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
Energy kJ
181
107
2214
1234
817
561
427
326
226
118
75
132
103
100
92
68
68
69
48
54
39
41
41
40
Swell 2
Height (m)
Direction
Period (s)
0.1
NE
12
0.1
NE
12
0.8
ESE
9
0.8
ESE
9
0.9
SE
9
0.8
ESE
9
0.8
ESE
9
0.8
ESE
9
0.9
ESE
9
0.9
ESE
10
0.8
ESE
10
0.8
SW
7
0.2
ENE
4
0.1
NE
4
0.1
NE
10
0.1
NE
10
0.1
NE
10
Energy kJ
6
6
94
94
110
101
101
94
126
135
125
62
1
1
4
4
4
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
12
0.3
SE
10
0.1
NE
11
0.1
E
11
0.1
NE
11
0.1
NE
11
0.1
NE
11
0.2
S
7
0.2
E
3
0.1
E
11
0.1
E
10
0.1
E
10
Energy kJ
5
17
5
2
5
5
5
4
1
2
2
2
Wind waves
Height (m)
Direction
Period (s)
4
SW
9
4
SW
10
4
WSW
10
2
WSW
8
0.3
E
3
0.8
SW
6
1.2
SW
5
1.4
SW
5
1.7
SSW
6
2.1
SSW
6
2.5
SSW
7
3.5
SSW
8
4.5
SW
9
4
SW
9
3.5
SW
9
3.5
SW
9
3.5
SW
9
Energy kJ
2803
2784
3398
512
1
51
67
98
178
333
697
1731
3051
2338
2195
1954
2150
Nearest Offshore or Glassy
Rating
(10 max)
1
1
3
3
1
1
3
3
2
2
1
2
1
1
1
3
3
4
3
3
3
2
2
2
Distance (km)
500
483
14
33
544
39
0
0
0
0
36
12
585
972
972
804
767
504
483
483
501
483
500
73
Best forecast wave conditions in Chiba
Rating
(10 max)
4
3
2
3
4
2
2
1
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
4
3
1
3
3
4
2
2
2
2
1
3
4
4
4
3
3
2
2
2
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
4
4
4
4
4
4
4
4
4
5
4
4
4
4
4
5
5
  • 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

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