Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 am Sunday 03 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 7AM is: 1.1m 7s primary swell from a Southwest direction and 0.8m 8s secondary swell from a Southwest direction, 0.7m 10s secondary swell from a East-southeast direction (forecast issued at 02:00am May 03). The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (03 May)2.5ft (0.8m)10s
Afternoon (03 May)2.5ft (0.7m)9s
Evening (03 May)5.5ft (1.7m)6s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 7mm), mostly falling on Mon morning. Warm (max 21°C on Sun night, min 15°C on Mon night). Winds decreasing (gales from the SW on Sun night, light winds from the NNE by Mon night).

Sunday
3
Monday
4
Tuesday
5
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)
3
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
4
2
2
1
1
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)
1.6
WSW
8
0.9
ESE
10
1.1
SW
8
0.8
ESE
10
0.8
ESE
10
0.7
ESE
9
1.4
SSW
5
1.7
SSW
6
2.1
SSW
6
3
SSW
8
4
SSW
8
4
SW
9
3.5
SW
10
3.5
SW
9
4
SW
9
3.5
WSW
9
2.5
SW
9
2.2
SW
9
1.8
SW
9
1.4
SW
9
1.1
SW
9
0.9
SW
8
0.6
ESE
10
0.6
ESE
10
Wave Graph
Metric surfscale
Energy kJ
300
138
133
105
103
92
102
201
331
1086
2302
2993
2262
2332
2244
2053
1202
788
497
287
178
102
69
63
Wind (km/h)
5
SW
10
ESE
5
WSW
15
WSW
30
SW
35
SSW
40
SSW
40
SSW
50
SSW
65
SSW
70
SW
50
SW
55
SW
55
WSW
55
WSW
45
W
10
NNE
35
NE
30
NE
20
ENE
15
SE
20
SE
25
SSE
20
SSE
glassy
cross-off
glassy
cross-on
on
on
on
on
on
on
on
on
on
on
on
cross-on
off
off
off
cross-off
cross
cross
cross
cross-on
High Tide
4:22AM1.40m
6:15PM1.30m
4:47AM1.39m
6:52PM1.27m
5:13AM1.36m
7:31PM1.22m
Low Tide
10:55PM0.70m
11:19AM-0.03m
11:26PM0.75m
11:50AM-0.02m
11:57PM0.79m
12:22PM0.02m
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
light rain
rain showers
part cloud
part cloud
part cloud
clear
cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:48
4:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:25
6:27
6:28
2
5
Temp °C
20
19
18
18
20
20
19
19
20
20
21
19
19
20
19
18
17
15
15
16
17
17
17
18
20
18
19
16
17
15
13
13
13
11
11
11
10
10
9
8
14
7
7
10
13
12
12
14
Swell 1
Height (m)
Direction
Period (s)
1.3
SW
8
1.1
SW
8
0.8
SW
8
0.8
ESE
10
0.8
ESE
10
0.7
ESE
9
0.7
ESE
9
0.6
ESE
9
0.6
ESE
9
0.6
ESE
9
0.5
ESE
10
0.5
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
2.2
SW
9
1.8
SW
9
1.4
SW
9
1.1
SW
9
0.9
SW
8
0.7
SW
8
0.6
WSW
8
Energy kJ
206
138
82
105
103
92
92
68
68
68
51
56
35
41
42
43
43
788
497
287
178
102
69
43
Swell 2
Height (m)
Direction
Period (s)
0.8
ESE
9
0.9
ESE
10
0.7
ESE
10
0.7
SW
7
0.1
E
10
0.1
E
10
0.1
E
10
0.1
NE
10
0.1
NE
10
0.1
NE
10
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.5
ESE
10
0.5
ESE
10
0.6
ESE
10
0.6
ESE
10
Energy kJ
100
135
98
52
2
2
2
4
4
4
41
40
38
55
55
64
63
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
11
0.1
NE
11
0.2
S
7
0.4
SSE
7
0.4
SSE
7
0.4
SSE
7
0.1
N
8
Energy kJ
5
5
4
16
17
16
1
Wind waves
Height (m)
Direction
Period (s)
1.6
WSW
8
1.1
SW
8
0.9
SW
7
0.9
SW
6
1.2
SW
5
1.4
SSW
5
1.7
SSW
6
2.1
SSW
6
3
SSW
8
4
SSW
8
4
SW
9
3.5
SW
10
3.5
SW
9
4
SW
9
3.5
WSW
9
2.5
SW
9
0.8
NE
4
0.9
ENE
5
0.7
ENE
4
0.6
ESE
4
0.8
SE
4
0.9
SE
4
Energy kJ
300
133
89
59
70
102
201
331
1086
2302
2993
2262
2332
2244
2053
1202
15
37
16
11
17
26
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
1
1
1
2
4
3
4
3
3
4
2
1
4
4
1
1
1
1
1
1
1
Distance (km)
0
0
0
36
2040
2040
2051
767
767
501
483
501
483
521
500
36
0
50
43
14
36
47
64
64
Best forecast wave conditions in Chiba
Rating
(10 max)
3
2
2
1
2
4
2
1
2
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
3
2
2
1
4
3
4
4
3
4
2
1
4
4
2
3
2
2
1
1
1
Header Global
Rating
(10 max)
5
4
4
4
4
4
4
4
5
4
4
4
4
4
5
5
5
4
5
4
5
5
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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