Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am 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
21.3° C
(Which is normal for this time of year)

How big are the waves at Mera today?

The current surf forecast for Mera at 2PM is: 1.3m 9s primary swell from a East direction and 0.2m 10s secondary swell from a East-southeast direction, 1.3m 7s secondary swell from a Southeast direction (forecast issued at 08:00am May 24). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (24 May)4.5ft (1.4m)10s
Afternoon (24 May)4.5ft (1.3m)9s
Evening (24 May)4ft (1.2m)9s

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 2mm), mostly falling on Sun morning. Warm (max 22°C on Tue morning, min 18°C on Sun morning). Wind will be generally light.

Sunday
24
Monday
25
Tuesday
26
Wed
27
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
12 AM
3 AM
Rating
(10 max)
2
2
1
1
1
1
1
2
2
2
2
1
1
2
2
2
2
2
1
1
1
1
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.4
E
10
1.4
E
10
1.9
ESE
7
1.3
E
9
1.2
E
9
1.2
E
9
1.3
E
8
1.6
SE
8
1.5
ESE
8
1.4
SE
8
1.5
ESE
8
1.4
ESE
8
1.3
ESE
8
1.3
ESE
8
1.3
ESE
8
1.3
ESE
8
1.2
ESE
8
1.2
ESE
8
1.1
ESE
8
1.2
ESE
8
1.2
ESE
8
1.1
ESE
8
1.1
ESE
8
1.1
ESE
8
Wave Graph
Metric surfscale
Energy kJ
361
361
326
300
251
246
245
276
257
204
240
232
209
215
215
192
188
188
161
171
179
153
157
161
Wind (km/h)
15
ENE
15
ENE
20
E
20
E
20
E
15
E
15
ENE
15
NE
20
NE
15
NE
15
ENE
20
E
15
ENE
15
ENE
10
ENE
15
NE
15
NE
10
ENE
10
NE
10
E
15
E
15
E
15
ENE
10
ENE
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
off
High Tide
9:52AM1.03m
11:56PM1.16m
12:00PM1.00m
00:34AM1.19m
1:37PM1.05m
1:08AM1.24m
Low Tide
4:51AM0.84m
4:48PM0.45m
6:23AM0.70m
5:55PM0.58m
7:23AM0.53m
6:56PM0.68m
light rain
light rain
rain showers
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
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
1
Temp °C
18
18
19
20
20
20
20
20
19
20
21
21
21
20
20
19
20
21
22
22
21
21
21
21
17
17
17
18
18
19
19
19
17
19
20
19
20
20
20
19
20
21
22
22
21
22
22
22
Swell 1
Height (m)
Direction
Period (s)
1.4
E
10
1.4
E
10
0.1
NW
4
1.3
E
9
1.2
E
9
1.3
SE
7
1.3
SE
7
1.6
SE
8
1.5
ESE
8
1.4
SE
8
1.5
ESE
8
1
ENE
11
1.3
ESE
8
1.3
ESE
8
1.3
ESE
8
1.3
ESE
8
1.2
ESE
8
1.2
ESE
8
1.1
ESE
8
1.2
ESE
8
1.2
ESE
8
1.1
ESE
8
1.1
ESE
8
1.1
ESE
8
Energy kJ
361
361
1
300
251
179
194
276
257
204
240
254
209
215
215
192
188
188
161
171
179
153
157
161
Swell 2
Height (m)
Direction
Period (s)
1
SE
6
0.2
NNW
4
0.2
ESE
10
0.2
ESE
10
1.3
E
8
1
ENE
9
0.9
ENE
9
1.2
ENE
10
1
ENE
11
0.3
SSW
9
1
ENE
11
1
ENE
11
1
ENE
11
0.9
ENE
11
0.9
ENE
11
0.9
ENE
11
0.9
ENE
11
0.9
ENE
10
0.7
ENE
10
0.7
ENE
10
0.7
ENE
10
0.6
ENE
10
Energy kJ
75
2
10
11
245
181
156
258
254
15
273
268
259
210
206
161
161
146
106
106
104
77
Swell 3
Height (m)
Direction
Period (s)
0.2
NNW
4
0.1
SW
7
0.1
E
16
0.1
E
16
0.2
ESE
11
0.2
ESE
11
0.2
SSW
9
0.3
SSW
9
0.4
SSW
8
0.4
SSW
7
0.5
S
7
0.5
S
7
0.5
S
7
0.4
SSE
7
0.4
SSE
7
0.2
ESE
15
0.2
ESE
15
0.2
ESE
15
0.2
ESE
14
0.2
ESE
14
Energy kJ
2
2
5
5
12
12
8
15
20
18
24
24
23
15
15
22
21
21
21
20
Wind waves
Height (m)
Direction
Period (s)
1.1
SE
6
1.9
ESE
7
1.3
SE
7
1.3
SE
7
1.2
E
9
1.4
ENE
9
1.5
ENE
9
1.4
ENE
10
1.4
ESE
8
Energy kJ
108
326
149
169
246
300
375
380
232
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
1
1
1
1
2
2
2
2
2
1
2
2
2
2
2
1
1
1
1
1
1
Distance (km)
0
0
14
14
14
14
14
0
0
0
0
36
14
0
0
0
0
0
0
0
47
0
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
2
2
2
1
1
1
1
2
3
2
2
1
2
2
2
2
2
1
1
1
1
2
Best forecast wave conditions in Japan
Rating
(10 max)
3
2
2
1
2
1
3
3
3
3
2
2
2
2
2
2
2
2
1
1
1
1
1
2
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
5
5
5
4
4
4
5
4
4
5
5
6
7
9
9
9
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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