Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera 48 hour detailed Surf Forecast

Issued: 8 am 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
25.7°C
0.0° 

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 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 16ft (5.0m), 13s period with SSE swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 18ft (5.5m), 13s period with SSE swell.
  • Evening surf: Evening surf (21 Sep, local time) - 20ft (6.0m), 13s period with SSE swell.

The current surf forecast for Mera at 2PM is: 5.5m 13s primary swell from a South-southeast direction and 0.6m 11s secondary swell from a East direction, 2.3m 9s secondary swell from a East direction (forecast issued at 08:00am September 21). The wind direction is predicted to be cross-offshore.

Time (JST) & DateWave HeightWave Period
Morning (21 Sep)16ft (5.0m)13s
Afternoon (21 Sep)18ft (5.5m)13s
Evening (21 Sep)20ft (6.0m)13s

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


Short Range Forecast

Heavy rain (total 122mm), heaviest during Mon night. Warm (max 27°C on Mon morning, min 22°C on Wed night). Mainly gales.

Monday
21
Tuesday
22
Wednesday
23
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)
9
7
!
0
!
0
0
3
0
0
0
1
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
Wave
Height (m)
Direction
Period (s)
5
SSE
13
5
SSE
13
5.5
SSE
13
5.5
SSE
13
6.5
SSE
13
6
SSE
13
2.5
S
12
1.9
SE
10
1.7
SSE
10
1.6
SSE
9
1.6
SSE
9
1.5
SSE
8
1.2
SSE
8
1
S
8
0.9
S
8
0.8
S
7
0.7
S
7
0.6
S
7
0.6
SSE
6
0.6
SSE
6
0.5
S
6
0.7
SSE
6
Wave Graph
Metric surfscale
Energy kJ
7312
7035
9665
10537
14553
12642
1747
739
495
406
374
293
202
127
90
70
49
34
32
29
19
30
Wind (km/h)
20
NE
25
E
40
ESE
50
E
55
ENE
70
N
55
NNW
10
WNW
20
S
20
SSE
15
SSE
15
E
25
E
25
E
30
ENE
30
ENE
30
NE
30
NE
30
ENE
30
ENE
25
ENE
20
ENE
Wind State
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
High Tide
3:07PM1.24m
00:00AM1.16m
3:20PM1.31m
1:33AM1.25m
3:36PM1.37m
Low Tide
6:48AM0.53m
8:05PM1.09m
7:52AM0.45m
8:35PM0.97m
8:35AM0.38m
thunderstorm
mod rain
mod rain
thunderstorm
heavy rain
heavy rain
heavy rain
clear
cloud
cloud
cloud
cloud
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:26
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:37
5:37
 mm
11
7
8
22
31
40
11
1
1
Temp °C
25
26
27
27
26
26
25
26
26
25
26
26
25
24
24
23
23
23
24
24
24
24
Feels °C
27
27
25
24
22
19
19
28
27
25
28
28
25
23
23
21
21
20
21
21
22
23
  • 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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