Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 pm Friday 22 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
21.4° C
(Which is normal for this time of year)

How big are the waves at Mera today?

The current surf forecast for Mera at 12AM is: 0.5m 8s primary swell from a Southwest direction (forecast issued at 08:00pm May 22). An open ocean swell of 2.3m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (23 May)--
Afternoon (23 May)--
Evening (23 May)2ft (0.6m)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 2mm), mostly falling on Sun morning. Warm (max 21°C on Mon morning, min 13°C on Fri night). Winds decreasing (strong winds from the NNE on Fri night, light winds from the ENE by Sun night).

Fri
22
Saturday
23
Sunday
24
Monday
25
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)
0
0
0
0
0
0
0
0
2
2
2
2
2
2
1
1
1
1
2
2
2
2
2
2
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)
0.9
SW
8
0.6
SW
8
0.5
SW
8
0.4
SW
8
0.4
SW
7
0.3
SW
7
0.3
SW
7
0.2
WSW
7
2
E
10
1.9
E
10
1.8
E
10
1.7
E
10
1.3
E
10
1.7
E
10
1.2
E
10
1.3
E
10
1.1
E
9
1.4
SE
7
1.4
SE
7
1.4
SE
7
1.4
SE
8
1.3
SE
8
1.3
SE
8
1.4
SE
8
Wave Graph
Metric surfscale
Energy kJ
91
48
29
20
14
9
8
5
724
654
587
529
319
550
262
306
217
192
209
215
223
200
205
215
Wind (km/h)
45
NNE
45
NNE
40
NNE
35
NNE
35
NNE
35
NE
30
NE
30
ENE
25
ENE
25
ENE
20
E
15
E
15
E
15
ESE
20
ESE
20
ESE
20
ESE
15
E
10
E
10
ENE
15
ENE
15
ENE
10
E
15
E
off
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
cross-off
cross-off
High Tide
10:18PM1.18m
8:06AM1.14m
11:11PM1.16m
9:52AM1.03m
11:56PM1.16m
12:00PM1.00m
Low Tide
3:10AM0.92m
3:43PM0.30m
4:51AM0.84m
4:48PM0.45m
6:23AM0.70m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
light rain
light rain
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:31
4:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:42
6:43
6:43
1
1
Temp °C
13
13
13
14
14
16
17
18
18
18
19
18
18
18
19
20
20
20
20
19
19
20
21
21
4
4
5
7
8
10
12
13
13
14
16
16
17
16
16
18
18
19
20
19
18
19
21
20
Swell 1
Height (m)
Direction
Period (s)
0.9
SW
8
0.6
SW
8
0.5
SW
8
0.4
SW
8
0.4
SW
7
0.3
SW
7
0.3
SW
7
0.2
WSW
7
0.2
SSW
7
0.1
SE
12
0.1
SE
12
1.3
E
10
0.1
SW
7
1.2
E
10
1.3
E
10
1.1
E
9
1.4
SE
7
1.4
SE
7
1.4
SE
7
1.4
SE
8
1.3
SE
8
1.3
SE
8
1.4
SE
8
Energy kJ
91
48
29
20
14
9
8
5
4
6
6
319
2
262
306
217
192
209
215
223
200
205
215
Swell 2
Height (m)
Direction
Period (s)
0.1
NW
6
0.2
SSE
7
0.2
SSE
8
0.2
S
7
0.2
S
7
0.2
S
7
0.1
SW
7
0.1
SE
12
0.1
SW
7
0.2
ESE
10
0.2
ESE
10
0.2
ESE
10
1.1
ENE
9
1.1
ENE
9
1.1
ENE
9
1
E
10
1
ENE
10
1
ENE
11
0.9
ENE
11
Energy kJ
2
5
6
4
4
4
2
6
2
10
10
11
216
216
225
184
236
240
210
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
7
0.1
SW
7
0.2
ESE
11
0.2
ESE
11
0.2
ESE
11
0.1
E
16
0.1
E
16
0.1
E
16
Energy kJ
2
2
12
12
12
5
5
5
Wind waves
Height (m)
Direction
Period (s)
2.3
NE
8
2.4
NE
9
2.3
NE
9
2.2
ENE
9
2.1
ENE
9
2.3
ENE
9
2.2
ENE
9
2.2
ENE
9
2
E
10
1.9
E
10
1.8
E
10
1.7
E
10
0.9
SE
6
1.7
E
10
1.2
SE
6
1.2
SE
7
1.3
SE
7
1.4
ENE
9
Energy kJ
754
904
880
817
799
885
831
807
724
654
587
529
62
550
116
128
164
314
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
3
2
2
2
2
1
2
1
1
2
2
2
2
2
2
Distance (km)
153
153
563
767
808
808
14
14
14
563
14
14
0
14
14
47
47
0
0
0
0
0
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
1
2
2
2
2
1
2
1
2
2
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
1
1
1
1
3
2
3
2
3
1
2
2
1
4
3
2
2
2
2
Header Global
Rating
(10 max)
7
7
6
6
6
5
4
6
7
8
7
6
5
5
5
5
5
5
5
5
5
5
4
4
  • 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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