Mera Surf Break

Mera 48 hour detailed Surf Forecast

Lat Long: 34.90° N 139.84° E

Issued: 2 pm 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
22.6° C

Slightly cooler than normal

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 (18 Jun):

  • Afternoon surf: Afternoon surf (18 Jun, local time) - 3.5ft (1.1m), 7s period with SSE swell.
  • Evening surf: Evening surf (18 Jun, local time) - 4ft (1.2m), 9s period with SW swell.

The current surf forecast for Mera at 9PM is: 1.2m 9s primary swell from a Southwest direction and 0.9m 7s secondary swell from a South-southeast direction, 0.4m 3s secondary swell from a West-southwest direction (forecast issued at 02:00pm June 18). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (18 Jun)--
Afternoon (18 Jun)3.5ft (1.1m)7s
Evening (18 Jun)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

Heavy rain (total 27mm), heaviest during Sun morning. Warm (max 24°C on Sun morning, min 21°C on Thu night). Winds increasing (calm on Thu night, strong winds from the SW by Sun morning).

Thu
18
Friday
19
Saturday
20
Sun
21
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
1
1
1
2
1
0
0
0
0
0
0
0
0
0
0
0
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
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SSE
7
1.1
SSE
7
1
SSE
7
1.2
SW
9
1.3
SW
9
1.1
SW
8
0.9
SW
8
0.9
SW
8
0.8
SW
8
0.6
SW
8
0.6
SW
7
0.4
SE
10
0.6
SW
7
0.4
SE
10
0.6
SW
7
0.6
SW
7
0.7
SW
7
0.6
SW
7
0.6
SW
7
0.6
SW
7
1.5
S
5
1.6
SSW
6
2.1
SW
6
2.3
SW
7
Wave Graph
Metric surfscale
Energy kJ
144
99
83
235
246
177
109
107
75
46
34
35
35
34
34
34
52
41
33
32
101
166
326
543
Wind (km/h)
30
N
30
N
15
NNW
10
WSW
5
SW
0
WNW
15
ENE
15
E
20
E
15
ESE
20
ESE
15
E
15
E
20
ENE
25
E
20
E
20
ESE
20
SE
15
SSE
15
SSW
25
S
35
S
35
SSW
40
SSW
Wind State
cross-off
cross-off
cross-off
on
on
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
on
cross-on
cross-on
cross-on
on
High Tide
8:05PM1.36m
6:21AM1.42m
8:42PM1.32m
7:16AM1.31m
9:17PM1.29m
8:19AM1.19m
Low Tide
12:52PM-0.08m
1:03AM0.90m
1:36PM0.06m
1:54AM0.85m
2:20PM0.22m
2:52AM0.79m
rain showers
clear
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
rain showers
mod rain
<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>
6:55
6:55
6:57
6:57
 mm
1
1
1
4
4
4
1
4
7
Temp °C
22
22
23
22
22
22
21
22
23
23
22
23
23
22
22
22
22
22
21
21
21
22
22
23
Feels °C
20
20
24
23
25
26
22
23
24
24
22
24
24
22
21
21
22
22
22
22
20
19
19
20
Swell 1
Height (m)
Direction
Period (s)
1.3
SSE
7
1.1
SSE
7
1
SSE
7
1.2
SW
9
1.3
SW
9
1.1
SW
8
0.9
SW
8
0.9
SW
8
0.8
SW
8
0.6
SW
8
0.6
SW
7
0.5
SW
7
0.6
SW
7
0.5
SW
7
0.6
SW
7
0.6
SW
7
0.7
SW
7
0.7
ENE
9
0.7
ENE
9
0.7
ENE
9
0.7
ENE
9
0.8
ENE
9
0.8
ENE
10
0.8
ENE
10
Energy kJ
144
99
83
235
246
177
109
107
75
46
34
27
33
25
33
33
52
73
71
71
70
96
111
114
Swell 2
Height (m)
Direction
Period (s)
1
SW
7
0.6
SW
7
0.6
SSW
7
0.9
SSE
7
0.9
SSE
7
0.9
SE
6
0.6
SE
6
0.7
SSE
6
0.5
SSE
6
0.5
SSE
6
0.4
SSE
6
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.5
ENE
9
0.7
ENE
9
0.6
SW
7
0.6
SW
7
0.6
SW
7
0.1
E
18
0.4
ESE
6
0.4
SE
9
0.4
SE
9
Energy kJ
107
41
37
68
78
61
31
34
21
18
10
26
26
29
30
45
71
41
30
28
6
10
29
21
Swell 3
Height (m)
Direction
Period (s)
0.6
ENE
9
0.6
SSE
8
0.6
SE
9
0.6
SE
9
0.4
ENE
9
0.4
ENE
9
0.5
S
7
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
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
10
0.4
SE
10
0.3
SE
12
0.4
SE
9
0.4
ESE
6
0.3
SE
11
Energy kJ
66
47
61
50
32
34
21
31
31
26
26
35
35
34
34
34
34
34
33
32
21
29
12
20
Wind waves
Height (m)
Direction
Period (s)
0.6
N
3
0.9
NNW
4
0.5
N
4
0.4
WSW
3
0.4
E
3
0.5
E
4
0.5
E
4
0.5
E
4
0.6
E
4
0.7
ESE
4
0.7
ESE
4
0.8
ESE
4
0.8
SE
4
0.8
SE
4
0.8
SE
5
1.5
S
5
1.6
SSW
6
2.1
SW
6
2.3
SW
7
Energy kJ
8
29
7
4
3
6
6
6
9
16
18
20
22
23
25
101
166
326
543
Nearest Offshore or Glassy
Rating
(10 max)
4
2
1
2
2
2
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
2
3
2
Distance (km)
56
40
0
12
12
0
0
14
70
64
64
77
77
153
153
204
70
70
77
64
64
500
483
148
Best forecast wave conditions in Chiba
Rating
(10 max)
4
2
2
2
2
2
1
1
1
1
1
2
2
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
2
3
2
3
2
2
1
1
1
1
1
1
1
1
1
2
2
1
1
2
3
4
3
Header Global
Rating
(10 max)
5
9
9
9
5
5
5
5
6
6
6
6
7
4
4
4
4
4
5
5
9
9
4
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
How to use the Wavefinder

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mera surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest