Mera Surf Break

Mera 48 hour detailed Surf Forecast

Lat Long: 34.90° N 139.84° E

Issued: 2 am 17 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
22.4° 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 (17 Jun):

  • Morning surf: Morning surf (17 Jun, local time) - 1.5ft (0.4m), 7s period with SW swell.
  • Afternoon surf: Afternoon surf (17 Jun, local time) - 1ft (0.3m), 11s period with SE swell.
  • Evening surf: Evening surf (17 Jun, local time) - 1.5ft (0.4m), 9s period with SW swell.

The current surf forecast for Mera at 5AM is: 0.4m 7s primary swell from a Southwest direction (forecast issued at 02:00am June 17). An open ocean swell of 0.9m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (17 Jun)1.5ft (0.4m)7s
Afternoon (17 Jun)1ft (0.3m)11s
Evening (17 Jun)1.5ft (0.4m)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 25mm), heaviest during Wed night. Warm (max 23°C on Thu afternoon, min 20°C on Wed night). Wind will be generally light.

Wednesday
17
Thursday
18
Friday
19
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
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
2
1
1
0
0
2
2
2
1
1
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)
1.1
E
8
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.3
SE
11
0.3
SE
10
0.4
SW
9
0.6
SW
8
1.3
SSW
7
1.4
SSW
7
1.1
SW
8
0.9
SW
8
1.1
SSE
6
1.1
SSE
6
0.9
SW
10
0.9
SW
9
0.9
SW
9
0.8
SW
9
0.8
SW
8
0.7
SW
8
0.6
SW
8
0.7
SW
8
0.7
SW
8
Wave Graph
Metric surfscale
Energy kJ
177
13
12
12
12
18
16
27
43
177
208
145
93
87
93
142
147
132
107
80
64
51
63
63
Wind (km/h)
15
SSE
15
S
10
S
10
SSE
15
S
20
S
20
S
15
SSE
15
ESE
15
ENE
15
NNE
15
NE
5
W
5
SSE
10
SE
10
E
10
ENE
5
NE
5
NE
0
SE
10
S
15
SSW
15
S
10
S
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
off
cross-off
off
glassy
cross-on
cross
cross-off
off
off
glassy
glassy
cross-on
cross-on
cross-on
cross-on
High Tide
4:43AM1.53m
7:24PM1.41m
5:31AM1.49m
8:05PM1.36m
6:21AM1.42m
8:42PM1.32m
Low Tide
11:33PM0.97m
12:07PM-0.17m
00:17AM0.94m
12:52PM-0.08m
1:03AM0.90m
1:36PM0.06m
cloud
clear
clear
clear
clear
part cloud
cloud
light rain
light rain
heavy rain
mod rain
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
<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
6:55
 mm
1
4
14
6
Temp °C
21
21
21
21
21
21
21
20
20
21
21
21
22
22
23
22
22
22
22
22
23
23
23
23
Feels °C
20
21
22
21
21
20
20
20
20
22
22
22
25
24
25
24
24
25
25
25
25
24
24
25
Swell 1
Height (m)
Direction
Period (s)
1.1
E
8
1
E
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
9
0.9
ENE
9
0.9
ENE
10
0.9
ENE
10
0.9
SSE
5
1.3
SSW
7
1.4
SSW
7
1.1
SW
8
1
SSE
6
1.1
SSE
6
1.1
SSE
6
1.2
SSE
7
1.1
SSE
6
0.9
SSE
6
0.8
SW
9
0.8
SW
8
0.7
SW
8
0.6
SW
8
0.7
SW
8
0.7
SW
8
Energy kJ
177
144
118
118
123
121
132
132
33
177
208
145
82
87
93
125
96
75
107
80
64
51
63
63
Swell 2
Height (m)
Direction
Period (s)
0.4
SSW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.3
SE
10
0.4
SW
9
0.7
ENE
10
0.7
ENE
9
0.6
ENE
9
0.9
SSE
6
0.9
SW
8
0.7
SW
7
0.6
WSW
7
0.9
SW
10
0.9
SW
9
0.9
SW
9
0.9
SSE
6
0.8
SSE
6
0.7
SSE
6
0.4
SE
10
0.5
SE
5
0.4
SSE
5
Energy kJ
21
13
12
12
12
12
16
27
94
92
68
47
93
56
35
142
147
132
59
44
31
35
14
11
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.4
SE
6
0.2
ESE
10
0.3
SE
11
0.3
SW
7
0.2
SSE
10
0.6
SW
8
0.6
ESE
5
0.2
SSE
10
0.6
ENE
9
0.6
ENE
9
0.5
ENE
9
0.5
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
ENE
9
0.4
SE
10
0.4
SE
10
Energy kJ
11
10
9
9
10
18
7
10
43
17
10
68
66
47
47
32
32
32
32
32
32
31
35
35
Wind waves
Height (m)
Direction
Period (s)
0.4
SSE
6
0.4
SSE
6
0.5
SSE
4
0.6
SSE
4
0.7
SE
5
0.3
NE
2
0.4
NE
3
0.2
ENE
4
0.3
NE
3
0.6
SSE
6
0.4
SW
3
0.5
SW
3
Energy kJ
12
12
8
12
22
1
4
1
1
25
2
6
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
1
2
2
2
1
1
1
2
1
1
1
1
2
2
2
1
1
1
1
1
1
Distance (km)
64
64
64
64
64
64
64
64
36
0
0
0
0
33
47
0
0
0
0
0
64
64
64
64
Best forecast wave conditions in Chiba
Rating
(10 max)
2
1
1
1
2
2
2
1
1
1
2
2
2
2
2
2
2
2
1
1
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
3
3
3
2
2
2
2
2
2
2
1
2
2
2
2
1
1
1
1
1
Header Global
Rating
(10 max)
4
4
4
5
5
8
8
5
4
4
4
6
5
9
7
6
5
5
6
5
6
6
6
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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