Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Sunday 24 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
20.7° C
(Which is slightly cooler than normal)

How big are the waves at Mera today?

The current surf forecast for Mera at 3AM is: 1.4m 7s primary swell from a Southeast direction and 0.2m 11s secondary swell from a East-southeast direction (forecast issued at 08:00pm May 24). An open ocean swell of 1.2m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (25 May)4.5ft (1.3m)8s
Afternoon (25 May)5ft (1.5m)8s
Evening (25 May)4.5ft (1.3m)8s

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 Wed morning. Warm (max 22°C on Tue morning, min 20°C on Sun night). Wind will be generally light.

Sun
24
Monday
25
Tuesday
26
Wednesday
27
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
1
1
1
2
2
2
1
1
2
2
2
1
2
2
2
1
2
1
1
1
2
2
1
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.3
E
9
1.2
E
9
1.3
E
9
1.4
SE
7
1.5
SE
8
1.3
SE
8
1.5
ESE
8
1.5
ESE
8
1.5
ESE
8
1.3
ESE
8
1.3
ESE
8
1.3
ESE
8
1.3
ESE
8
1.4
ESE
7
1.4
ESE
7
1.4
ESE
7
1.4
ESE
7
1.4
ESE
7
1.3
ESE
7
1.3
ESE
7
1.2
ESE
7
1.3
ESE
7
1.3
ESE
7
1.3
ESE
7
Wave Graph
Metric surfscale
Energy kJ
293
235
251
215
244
200
240
240
240
204
178
183
187
191
196
185
191
202
173
173
153
167
172
172
Wind (km/h)
20
E
15
E
20
E
20
ENE
20
ENE
15
NE
15
ENE
15
E
15
E
15
E
10
ENE
10
ENE
15
E
15
ENE
10
ENE
15
E
15
E
15
ESE
10
ESE
10
E
10
E
10
NE
10
NE
5
ENE
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
High Tide
11:56PM1.16m
12:00PM1.00m
00:34AM1.19m
1:37PM1.05m
1:08AM1.24m
2:46PM1.13m
Low Tide
4:48PM0.45m
6:23AM0.70m
5:55PM0.58m
7:23AM0.53m
6:56PM0.68m
8:08AM0.37m
part cloud
cloud
cloud
cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:31
4:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:43
6:44
6:45
1
1
2
1
Temp °C
20
20
20
20
20
21
21
21
21
20
20
20
20
21
22
22
22
21
21
21
21
21
21
21
19
19
18
18
19
20
20
20
21
20
21
20
20
20
22
22
22
21
22
22
23
23
23
23
Swell 1
Height (m)
Direction
Period (s)
1.3
SE
7
1.4
SE
7
1.4
SE
7
1.4
SE
7
1.5
SE
8
1.3
SE
8
0.9
ENE
11
1
ENE
11
1
ENE
11
1.3
ESE
8
1.3
ESE
8
1.3
ESE
8
1.3
ESE
8
1.4
ESE
7
0.9
ENE
10
0.8
ENE
10
0.7
ENE
10
1.4
ESE
7
1.3
ESE
7
1.3
ESE
7
1.2
ESE
7
1.3
ESE
7
1.3
ESE
7
1.3
ESE
7
Energy kJ
153
198
217
215
244
200
206
263
273
204
178
183
187
191
155
116
106
202
173
173
153
167
172
172
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
10
1.2
E
9
0.2
ESE
11
0.2
ESE
11
0.2
ESE
11
1.2
ENE
10
0.2
SSW
9
0.3
SSW
8
0.4
SW
8
1
ENE
11
1
ENE
11
1
ENE
11
0.9
ENE
11
0.9
ENE
11
0.2
ESE
15
0.2
ESE
15
0.2
ESE
15
0.7
ENE
10
0.6
ENE
10
0.6
ENE
10
0.6
S
6
0.7
S
6
0.7
S
6
0.6
S
6
Energy kJ
11
235
11
12
12
312
8
14
17
273
263
254
206
164
22
22
21
106
78
77
29
36
36
27
Swell 3
Height (m)
Direction
Period (s)
0.1
E
16
0.1
E
16
0.1
E
16
0.2
ESE
11
0.1
E
16
0.3
SSW
9
0.1
E
16
0.5
S
7
0.5
S
7
0.5
S
7
0.4
S
7
0.2
ESE
15
0.1
SE
10
0.1
SE
10
0.2
ESE
15
0.2
ESE
14
0.2
ESE
14
0.5
ENE
10
0.5
ENE
10
0.4
ENE
10
0.4
ENE
11
Energy kJ
5
5
5
12
5
15
5
27
24
23
15
22
4
4
21
21
20
56
54
39
44
Wind waves
Height (m)
Direction
Period (s)
1.3
E
9
1.3
E
9
1.2
ENE
9
1.1
ENE
10
1.5
ESE
8
1.5
ESE
8
1.5
ESE
8
1.4
ESE
7
1.4
ESE
7
1.4
ESE
7
Energy kJ
293
251
254
230
240
240
240
196
185
191
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
1
2
2
2
1
1
2
2
2
1
2
2
2
1
2
1
1
1
2
2
1
Distance (km)
14
14
14
14
0
0
0
14
14
0
0
0
73
0
0
0
14
0
0
0
0
0
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
2
1
1
1
2
2
2
1
1
2
2
2
2
2
2
1
2
1
1
1
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
3
3
4
4
3
3
3
3
2
2
2
2
2
2
2
2
1
2
1
2
2
2
2
1
Header Global
Rating
(10 max)
5
5
5
5
5
5
4
5
5
4
4
4
4
4
5
6
9
9
9
6
7
7
7
9
  • 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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