Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Sunday 26 Apr 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
20.8° C
(Which is 1.8°C warmer than normal for this time of year)

How big are the waves at Mera today?

The current surf forecast for Mera at 5AM is: 1.7m 6s primary swell from a East-southeast direction (forecast issued at 08:00pm April 26). An open ocean swell of 0.2m 13s is not directed at the surf break, a second open ocean swell of 0.2m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (27 Apr)5.5ft (1.7m)7s
Afternoon (27 Apr)4.5ft (1.3m)7s
Evening (27 Apr)4ft (1.2m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 34mm), heaviest during Sun night. Warm (max 20°C on Wed afternoon, min 15°C on Mon afternoon). Winds increasing (light winds from the SE on Mon night, strong winds from the SW by Tue night).

Sun
26
Monday
27
Tuesday
28
Wednesday
29
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
12 PM
3 PM
Rating
(10 max)
1
0
0
0
0
0
1
0
0
2
0
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><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)
1.1
ESE
6
1.1
ESE
6
1.2
ESE
6
0.1
SE
12
1.7
SE
6
1.7
SE
7
1.7
SSE
7
1.3
SE
7
1.1
SSW
7
1.2
SSW
7
1
SSW
7
0.9
SSW
7
0.8
SSW
7
0.8
SSW
7
0.7
SSW
7
0.7
SSW
6
0.5
E
8
1.6
SW
5
2
SW
6
1.9
SW
6
1.8
SW
6
1.8
SW
6
1.7
SW
6
1.5
SW
6
Wave Graph
Metric surfscale
Energy kJ
94
94
103
6
230
248
262
176
108
139
111
90
61
53
42
43
35
133
269
269
248
228
205
141
Wind (km/h)
15
ESE
20
ESE
20
ESE
25
ESE
35
SE
30
NW
25
NNW
30
N
25
NNE
10
NE
5
SE
10
SE
15
SSE
20
S
20
S
30
SW
45
SW
45
SW
50
SW
40
SW
35
WSW
20
W
20
WSW
20
SW
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
off
cross
cross
cross-on
cross-on
cross-on
on
on
on
on
on
on
cross-on
on
on
High Tide
2:04AM1.15m
1:50PM1.07m
2:28AM1.20m
2:52PM1.16m
2:50AM1.26m
Low Tide
7:00PM0.39m
8:11AM0.64m
7:57PM0.43m
8:46AM0.45m
8:41PM0.49m
9:18AM0.29m
cloud
cloud
cloud
mod rain
heavy rain
mod rain
cloud
cloud
cloud
rain showers
clear
part cloud
part cloud
part cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:54
4:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:21
6:21
6:22
6:22
7
17
9
1
Temp °C
18
18
18
17
18
16
17
16
15
16
16
16
17
18
19
19
18
19
19
19
19
18
19
20
16
16
16
14
14
12
13
11
10
14
15
14
14
15
17
15
11
13
12
13
14
16
16
17
Swell 1
Height (m)
Direction
Period (s)
0.4
NE
14
0.3
NE
13
0.3
NE
13
0.2
ENE
13
0.2
ENE
13
1.7
SE
7
1.7
SSE
7
1.3
SE
7
1.1
SSW
7
1.2
SSW
7
1
SSW
7
0.9
SSW
7
0.8
SSW
7
0.8
SSW
7
0.7
SSW
7
0.5
E
8
0.5
E
8
0.4
E
8
0.4
E
9
0.4
E
9
0.4
E
9
0.4
E
9
0.4
E
9
0.4
ESE
9
Energy kJ
47
28
27
17
17
248
262
176
108
139
111
90
61
53
40
29
29
20
27
27
26
26
25
26
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
13
0.2
ESE
13
0.2
ENE
8
0.2
ENE
8
0.2
ENE
8
0.2
ENE
13
0.2
ENE
12
1.1
SSW
7
1
SE
7
0.8
ESE
8
0.7
ESE
8
0.6
ESE
8
0.5
ESE
7
0.5
ESE
8
0.6
E
8
0.4
SE
7
0.4
SSE
7
0.4
SSE
7
0.2
ENE
8
0.1
NE
8
0.1
NE
10
0.1
NE
10
0.1
NE
9
0.1
NE
8
Energy kJ
7
17
7
7
7
16
15
102
107
72
50
44
31
32
42
13
18
18
6
2
4
4
3
3
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
7
0.1
SW
6
0.1
SE
13
0.1
SE
12
0.1
SE
12
0.2
ENE
8
0.1
NE
9
0.1
NE
12
0.2
ENE
8
0.4
NNW
4
0.5
ENE
6
0.4
ENE
7
0.4
NE
8
0.3
ENE
8
0.1
SE
7
0.2
ENE
7
0.4
NE
7
0.2
ENE
7
0.1
SE
11
0.1
NE
9
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
Energy kJ
2
2
6
6
6
7
3
6
6
5
23
21
17
11
2
5
13
5
5
3
5
5
5
5
Wind waves
Height (m)
Direction
Period (s)
1.1
ESE
6
1.1
ESE
6
1.2
ESE
6
1.6
SE
6
1.7
SE
6
0.1
SW
7
0.7
NW
4
0.6
NNW
4
0.7
N
4
0.4
NE
4
0.3
SSE
3
0.7
SSW
6
1
SW
4
1.6
SW
5
2
SW
6
1.9
SW
6
1.8
SW
6
1.8
SW
6
1.7
SW
6
1.5
SW
6
Energy kJ
94
94
103
176
230
2
14
11
14
5
2
43
35
133
269
269
248
228
205
141
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
3
1
1
2
1
1
1
1
1
1
1
1
1
1
2
2
2
1
Distance (km)
0
14
14
47
47
70
12
50
50
0
33
47
64
64
64
64
767
811
244
59
36
33
35
40
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
1
2
3
2
2
1
1
1
1
1
1
2
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
4
3
2
2
2
3
3
2
2
1
1
1
1
1
1
1
1
1
1
2
2
2
1
Header Global
Rating
(10 max)
5
6
7
7
9
9
8
7
6
6
6
6
5
5
5
5
5
5
5
5
7
9
9
7
  • 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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