Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera 48 hour detailed Surf Forecast

Issued: 2 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
27.8° C
0.9° 

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 (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 3.5ft (1.0m), 10s period with E swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 3ft (0.9m), 10s period with SW swell.
  • Evening surf: Evening surf (12 Aug, local time) - 3.5ft (1.0m), 9s period with E swell.

The current surf forecast for Mera at 10AM is: 1.0m 10s primary swell from a East direction and 0.7m 11s secondary swell from a Southwest direction (forecast issued at 02:00am August 12). An open ocean swell of 1.1m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (12 Aug)3.5ft (1.0m)10s
Afternoon (12 Aug)3ft (0.9m)10s
Evening (12 Aug)3.5ft (1.0m)9s

Table - waves today at Mera. (Swell directed towards the surf break)


Short Range Forecast

Heavy rain (total 60mm), heaviest during Fri night. Warm (max 28°C on Fri afternoon, min 24°C on Wed night). Mainly fresh winds.

Wednesday
12
Thursday
13
Friday
14
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
1
2
0
0
1
2
2
2
1
2
2
3
2
2
2
3
3
2
3
3
2
2
2
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)
1.9
SSW
10
1.1
E
11
1
E
10
1
E
10
1
SW
11
0.9
E
10
1
E
10
1
E
9
1.1
E
9
1.2
E
9
1.3
E
10
1.4
E
10
1.4
E
10
1.4
E
10
1.4
E
10
1.5
E
10
1.5
E
10
1.5
E
10
1.4
E
10
1.5
E
10
1.5
E
10
1.5
E
10
1.5
E
10
1.5
E
10
Wave Graph
Metric surfscale
Energy kJ
734
281
202
198
220
160
183
175
207
251
301
354
369
386
402
461
461
461
402
467
461
452
452
443
Wind (km/h)
40
S
15
S
15
ESE
30
SE
25
ESE
20
E
15
ENE
15
NE
20
NNE
20
NNE
20
NNE
20
NE
15
ENE
15
E
15
ENE
20
ENE
15
ENE
15
NE
20
NE
20
NE
15
NE
20
ENE
20
ENE
20
E
Wind State
cross-on
cross-on
cross-off
cross
cross-off
cross-off
off
off
off
cross-off
off
off
off
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
cross-off
cross-off
High Tide
3:10AM1.54m
5:22PM1.49m
4:02AM1.60m
5:47PM1.51m
4:50AM1.61m
6:10PM1.51m
Low Tide
9:54PM1.01m
10:19AM0.00m
10:33PM0.88m
10:58AM0.02m
11:09PM0.76m
11:34AM0.10m
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
clear
clear
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:58
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:32
6:31
6:30
 mm
18
8
1
3
2
3
5
3
2
1
1
3
5
3
2
2
1
3
Temp °C
24
24
25
26
26
27
26
25
24
24
24
25
27
27
27
26
26
25
25
26
27
28
27
26
Feels °C
20
26
27
25
25
28
27
27
25
25
25
26
29
29
29
28
28
27
26
27
29
30
28
28
  • 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.


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