Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 pm 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
18.9° C
(Which is slightly cooler than normal)

How big are the waves at Mera today?

The current surf forecast for Mera at 9PM is: 1.7m 6s primary swell from a South-southwest direction and 0.6m 9s secondary swell from a East-southeast direction (forecast issued at 02:00pm May 03). An open ocean swell of 0.1m 10s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (03 May)--
Afternoon (03 May)4.5ft (1.3m)5s
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 6mm), 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 ESE by Tue morning).

Sun
3
Monday
4
Tuesday
5
Wed
6
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
12 AM
3 AM
6 AM
9 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
4
1
1
2
1
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>
<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)
0.8
ESE
10
1.3
SSW
5
1.5
SSW
6
1.7
SSW
6
2.2
SSW
6
3
SSW
7
4
SSW
8
4
SW
9
3.5
SW
10
3.5
SW
9
4
SW
9
3.5
WSW
9
3
SW
9
2.1
SW
9
1.7
SW
9
1.3
SW
9
1
SW
9
0.8
SW
8
0.6
ESE
10
0.6
ESE
10
0.6
ESE
10
1
SE
6
1.2
SE
6
1.1
SE
6
Wave Graph
Metric surfscale
Energy kJ
103
92
134
215
384
996
2347
2993
2396
2296
2366
2053
1219
727
450
275
145
82
64
63
61
59
95
75
Wind (km/h)
25
SSW
40
SW
40
SSW
40
SSW
45
SSW
65
SSW
65
SW
55
SW
55
SW
55
WSW
55
WSW
45
WSW
15
NE
35
NNE
30
NNE
15
ENE
15
ESE
20
SE
20
SSE
20
S
20
S
20
SSE
20
SSE
25
SSE
on
on
on
on
on
on
on
on
on
on
on
cross-on
off
off
off
off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
High Tide
6:15PM1.30m
4:47AM1.39m
6:52PM1.27m
5:13AM1.36m
7:31PM1.22m
5:39AM1.31m
Low Tide
11:19AM-0.03m
11:26PM0.75m
11:50AM-0.02m
11:57PM0.79m
12:22PM0.02m
00:29AM0.83m
part cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
rain showers
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:47
4:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:25
6:27
6:28
6:29
1
1
3
Temp °C
20
20
19
19
20
20
21
20
20
20
19
17
17
15
15
16
17
17
17
18
18
18
18
18
17
15
13
13
13
11
11
12
11
10
9
8
13
6
7
10
13
12
12
14
15
15
14
14
Swell 1
Height (m)
Direction
Period (s)
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
2.1
SW
9
1.7
SW
9
1.3
SW
9
1
SW
9
0.8
SW
8
0.6
SW
8
0.6
ESE
10
0.6
ESE
10
0.6
ESE
9
0.6
ESE
9
1.1
SE
6
Energy kJ
103
92
92
69
68
69
51
56
34
34
42
42
42
727
450
275
145
82
54
63
61
59
59
75
Swell 2
Height (m)
Direction
Period (s)
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
0.4
ESE
10
0.4
ESE
10
0.5
ESE
10
0.6
ESE
10
0.5
SW
8
0.5
SW
8
0.4
SW
8
0.4
SW
7
0.6
ESE
9
Energy kJ
2
2
2
4
4
4
41
41
40
39
38
55
64
31
29
14
14
58
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
10
0.4
SSE
7
0.3
SSE
7
0.3
SSE
7
0.4
SSE
7
0.1
N
12
0.3
SE
11
0.4
SW
7
Energy kJ
4
16
9
9
15
3
19
13
Wind waves
Height (m)
Direction
Period (s)
0.8
SW
6
1.3
SSW
5
1.5
SSW
6
1.7
SSW
6
2.2
SSW
6
3
SSW
7
4
SSW
8
4
SW
9
3.5
SW
10
3.5
SW
9
4
SW
9
3.5
WSW
9
3
SW
9
0.7
NE
4
0.9
NE
4
0.6
ENE
4
0.6
E
4
0.8
SE
4
0.9
SE
4
1
SE
5
1
SE
6
1.2
SE
6
Energy kJ
49
83
134
215
384
996
2347
2993
2396
2296
2366
2053
1219
12
28
11
9
18
31
51
59
95
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
4
4
3
3
3
4
2
1
2
4
1
1
2
1
1
1
1
1
1
1
1
Distance (km)
2040
2040
2051
767
504
504
501
501
483
521
500
60
0
53
50
0
0
47
544
64
74
70
61
64
Best forecast wave conditions in Chiba
Rating
(10 max)
4
2
2
2
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
3
3
3
4
2
1
2
4
2
2
2
1
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
4
4
4
4
5
4
4
4
4
4
5
5
5
5
4
4
5
5
5
5
5
4
5
8
  • 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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