Mera Surf Break

Mera 48 hour detailed Surf Forecast

Lat Long: 34.90° N 139.84° E

Issued: 2 pm 20 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 (20 Jun):

  • Afternoon surf: Afternoon surf (20 Jun, local time) - 1.5ft (0.4m), 10s period with SE swell.
  • Evening surf: Evening surf (20 Jun, local time) - 3ft (0.9m), 5s period with SE swell.

The current surf forecast for Mera at 9PM is: 0.4m 9s primary swell from a Southeast direction and 0.5m 7s secondary swell from a Southwest direction, 0.9m 5s secondary swell from a Southeast direction (forecast issued at 02:00pm June 20). An open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (20 Jun)--
Afternoon (20 Jun)1.5ft (0.4m)10s
Evening (20 Jun)3ft (0.9m)5s

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 41mm), heaviest during Sat afternoon. Warm (max 25°C on Sun afternoon, min 19°C on Tue morning). Winds decreasing (strong winds from the SW on Sun afternoon, calm by Sun night).

Sat
20
Sunday
21
Monday
22
Tue
23
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
6 AM
9 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
2
2
4
4
1
2
2
2
0
0
1
0
Swell
Height Map
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)
0.6
SW
7
0.4
SE
10
0.9
SE
5
0.9
SE
5
1.6
SSE
5
1.9
S
6
2.1
SSW
6
2.1
SW
6
2.5
SW
7
2.5
SW
7
3
SW
8
2.5
SW
8
2.5
SW
8
2.2
SW
8
2.5
WSW
8
2.2
WSW
8
1.6
SW
8
2
WSW
8
2.1
WSW
8
1.6
SW
8
1.3
SW
8
1.1
SW
8
1.1
SW
8
0.9
SW
7
Wave Graph
Metric surfscale
Energy kJ
34
34
37
31
133
244
318
341
659
735
1194
846
819
650
789
643
322
521
569
314
191
143
125
77
Wind (km/h)
20
SE
15
SSE
20
S
25
SSE
35
SSE
40
S
40
SSW
45
SW
50
SW
50
SW
50
SW
30
W
5
W
5
NW
5
N
5
SE
5
S
10
S
10
SE
15
NNE
40
NNE
30
NNE
25
ENE
30
NE
Wind State
cross
cross-on
cross-on
cross
cross-on
cross-on
on
on
on
on
on
cross-on
cross-on
cross
glassy
glassy
cross-on
cross-on
cross
off
cross-off
off
off
off
High Tide
9:17PM1.29m
8:19AM1.19m
9:50PM1.27m
9:42AM1.08m
10:23PM1.27m
Low Tide
2:20PM0.22m
2:52AM0.79m
3:02PM0.41m
4:00AM0.71m
3:46PM0.59m
5:17AM0.61m
light rain
mod rain
heavy rain
mod rain
light rain
light rain
thunderstorm
thunderstorm
clear
clear
clear
part cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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
8
15
6
4
4
3
1
Temp °C
23
22
21
21
22
23
23
24
24
25
25
24
23
22
22
23
23
24
24
24
23
22
20
19
Feels °C
23
24
21
20
19
20
20
21
20
19
19
22
25
25
25
26
25
26
26
24
17
18
16
14
Swell 1
Height (m)
Direction
Period (s)
0.5
ENE
9
0.6
ENE
9
0.7
ENE
9
0.7
ENE
9
0.7
ENE
9
0.7
ENE
10
0.7
ENE
10
0.7
ENE
10
0.5
ENE
10
0.5
ENE
9
0.4
ENE
10
0.5
ENE
10
0.5
ENE
10
0.5
ENE
10
1.8
SW
8
1.6
SW
8
1.6
SW
8
1.5
SW
8
1.4
SW
8
1.6
SW
8
1.3
SW
8
1.1
SW
8
1.1
SW
8
0.9
SW
7
Energy kJ
45
50
65
68
76
81
85
85
54
50
35
55
56
52
437
341
322
291
266
314
191
143
125
77
Swell 2
Height (m)
Direction
Period (s)
0.6
SW
7
0.5
SW
7
0.5
SW
7
0.5
SW
7
0.1
E
18
0.3
SE
12
0.3
SE
9
0.6
SE
7
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
9
0.4
SE
10
0.4
SE
10
0.4
ENE
9
0.6
ENE
10
0.7
ENE
10
0.7
ENE
10
0.7
ENE
10
0.7
ENE
10
0.7
ENE
9
0.6
ENE
9
0.5
ENE
9
0.4
SE
11
Energy kJ
29
23
23
23
6
21
14
29
21
30
21
31
35
35
31
78
85
83
83
81
76
66
47
44
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SE
9
0.1
E
18
0.1
E
18
0.3
SE
11
0.3
SE
9
0.3
SE
11
0.3
SE
11
0.3
SE
11
0.2
ENE
12
0.2
ENE
12
0.3
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
0.4
SE
11
0.4
SE
11
0.1
E
15
Energy kJ
34
34
33
31
6
6
20
13
19
19
19
15
15
26
35
35
35
35
35
35
37
41
43
4
Wind waves
Height (m)
Direction
Period (s)
0.8
SE
4
0.9
SE
4
0.9
SE
5
0.9
SE
5
1.6
SSE
5
1.9
S
6
2.1
SSW
6
2.1
SW
6
2.5
SW
7
2.5
SW
7
3
SW
8
2.5
SW
8
2.5
SW
8
2.2
SW
8
2.5
WSW
8
2.2
WSW
8
2
WSW
8
2.1
WSW
8
0.4
NE
3
0.3
NE
3
0.4
NE
3
1.5
ENE
6
Energy kJ
19
34
37
31
133
244
318
341
659
735
1194
846
819
650
789
643
521
569
2
1
2
143
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
1
1
1
3
1
3
3
3
4
4
1
2
1
2
2
1
1
1
Distance (km)
153
153
64
64
153
504
69
60
55
125
59
33
14
12
0
0
36
36
36
0
40
544
0
204
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
3
1
3
3
3
4
4
2
2
2
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
3
4
3
1
3
2
3
3
3
4
4
2
2
2
3
2
1
1
1
Header Global
Rating
(10 max)
5
5
5
5
5
5
8
9
9
9
8
7
7
8
7
7
6
6
8
6
5
5
5
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
How to use the Wavefinder 

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