Mera Surf Break

Mera 48 hour detailed Surf Forecast

Lat Long: 34.90° N 139.84° E

Issued: 8 am 21 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.6° C

Normal for this time of year

Mera surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Mera today (21 Jun):

  • Morning surf: Morning surf (21 Jun, local time) - 6ft (1.9m), 6s period with SW swell.
  • Afternoon surf: Afternoon surf (21 Jun, local time) - 10ft (3.0m), 8s period with SW swell.
  • Evening surf: Evening surf (21 Jun, local time) - 10ft (3.0m), 8s period with SW swell.

The current surf forecast for Mera at 3PM is: 3.0m 8s primary swell from a Southwest direction and 0.4m 9s secondary swell from a Southeast direction (forecast issued at 08:00am June 21). An open ocean swell of 0.5m 10s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Jun)6ft (1.9m)6s
Afternoon (21 Jun)10ft (3.0m)8s
Evening (21 Jun)10ft (3.0m)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 9mm), mostly falling on Sun morning. Warm (max 26°C on Sun afternoon, min 19°C on Mon night). Winds decreasing (strong winds from the SW on Sun afternoon, calm by Mon morning).

Sunday
21
Monday
22
Tuesday
23
Wed
24
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)
0
0
0
0
0
2
3
4
2
2
2
1
0
1
1
1
1
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
S
5
1.9
SW
6
2.5
SW
7
3
SW
8
3
SW
8
3
SW
8
3
WSW
8
2.2
WSW
8
1.6
SW
8
1.4
SW
8
1.2
SW
8
1.1
SW
8
0.9
SW
8
0.9
SW
8
0.8
SW
7
0.7
SW
7
0.5
SE
11
0.5
SE
11
0.4
SE
11
0.4
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
Wave Graph
Metric surfscale
Energy kJ
138
269
623
960
1286
1035
1147
675
349
257
177
131
84
94
64
48
59
60
43
43
58
57
56
56
Wind (km/h)
40
SSW
40
SW
45
SW
50
SW
45
WSW
25
NNW
20
NNW
15
N
15
NNE
10
NE
5
SE
15
ESE
20
ENE
20
NE
15
NNE
15
NNE
20
NE
20
NE
15
NE
10
ENE
15
E
15
ENE
15
ENE
15
NE
Wind State
on
on
on
on
on
cross-off
cross-off
cross-off
cross-off
off
glassy
cross-off
cross-off
off
off
off
off
off
off
off
cross-off
cross-off
off
off
High Tide
8:19AM1.19m
9:50PM1.27m
9:42AM1.08m
10:23PM1.27m
11:30AM1.02m
10:59PM1.28m
Low Tide
3:02PM0.41m
4:00AM0.71m
3:46PM0.59m
5:17AM0.61m
4:35PM0.76m
thunderstorm
thunderstorm
thunderstorm
clear
clear
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
part cloud
part cloud
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:26
4:26
4:26
4:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:57
6:57
6:57
 mm
3
2
1
2
2
1
1
Temp °C
23
23
24
26
25
24
22
21
21
21
22
22
21
20
20
20
19
19
20
21
21
20
20
20
Feels °C
20
20
20
21
20
23
21
21
21
21
24
22
19
19
20
20
17
18
20
21
21
20
20
20
Swell 1
Height (m)
Direction
Period (s)
0.8
ENE
10
0.7
ENE
10
0.7
ENE
10
0.5
ENE
10
0.4
ENE
10
0.5
ENE
10
2.2
SW
8
1.8
SW
8
1.6
SW
8
1.4
SW
8
1.2
SW
8
1.1
SW
8
0.9
SW
8
0.9
SW
8
0.9
ENE
10
0.9
ENE
10
1
ENE
10
1
ENE
10
0.4
SE
11
0.4
SE
11
1.4
ENE
10
1.4
ENE
10
1.4
ENE
10
1.3
ENE
10
Energy kJ
107
83
83
51
35
55
687
433
349
257
177
131
84
94
142
145
183
183
43
43
365
348
348
295
Swell 2
Height (m)
Direction
Period (s)
0.4
SE
9
0.4
ESE
6
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.5
ENE
10
0.6
ENE
10
0.5
ENE
9
0.8
ENE
10
0.8
ENE
10
0.9
ENE
10
0.9
ENE
10
0.4
SE
10
0.8
SW
7
0.7
SW
7
0.6
SW
7
0.5
SE
11
0.4
SW
7
0.4
SW
6
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
Energy kJ
29
13
29
21
30
31
54
72
45
118
127
154
151
35
64
48
29
60
15
11
58
57
56
56
Swell 3
Height (m)
Direction
Period (s)
0.3
SE
11
0.4
SE
9
0.3
SE
11
0.3
SE
11
0.3
ENE
12
0.2
ENE
12
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.1
S
11
0.4
SE
10
0.4
SE
11
0.5
SE
11
0.4
SW
7
0.1
S
10
0.1
S
10
0.3
SW
6
0.3
SW
6
0.3
SW
6
0.2
WSW
6
Energy kJ
20
29
19
19
28
15
35
35
35
35
35
35
35
2
36
40
59
16
2
2
6
6
5
3
Wind waves
Height (m)
Direction
Period (s)
1.6
S
5
1.9
SW
6
2.5
SW
7
3
SW
8
3
SW
8
3
SW
8
3
WSW
8
2.2
WSW
8
0.4
E
3
1.1
ENE
10
0.7
ENE
4
0.6
ENE
4
0.8
NE
4
0.8
NE
4
1.3
ENE
10
1.4
ENE
10
Energy kJ
138
269
623
960
1286
1035
1147
675
2
210
13
8
18
21
339
386
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
2
3
3
2
4
2
2
2
1
2
1
1
1
1
1
1
1
1
3
2
2
Distance (km)
61
57
69
61
36
56
33
0
0
0
0
0
204
0
0
0
0
0
501
47
36
40
40
40
Best forecast wave conditions in Chiba
Rating
(10 max)
2
4
3
3
4
2
2
2
1
2
2
2
1
3
3
3
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
4
2
3
3
3
3
4
2
2
3
1
2
2
2
2
2
3
1
1
1
3
2
2
Header Global
Rating
(10 max)
5
9
9
9
8
8
7
7
7
6
6
6
7
6
5
5
5
5
5
6
5
5
6
5
  • 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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