Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera 48 hour detailed Surf Forecast

Issued: 2 am 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
25.8°C
0.2° 

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 Sep):

  • Morning surf: Morning surf (17 Sep, local time) - 2ft (0.6m), 12s period with E swell.
  • Afternoon surf: Afternoon surf (17 Sep, local time) - 0.5ft (0.2m), 9s period with SSE swell.
  • Evening surf: Evening surf (17 Sep, local time) - 1ft (0.3m), 8s period with SE swell.

The current surf forecast for Mera at 10AM is: 0.6m 12s primary swell from a East direction and 0.5m 8s secondary swell from a Southeast direction (forecast issued at 02:00am September 17). An open ocean swell of 1.5m 7s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (JST) & DateWave HeightWave Period
Morning (17 Sep)2ft (0.6m)12s
Afternoon (17 Sep)0.5ft (0.2m)9s
Evening (17 Sep)1ft (0.3m)8s

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


Short Range Forecast

Heavy rain (total 22mm), heaviest during Sat morning. Warm (max 23°C on Thu afternoon, min 19°C on Thu night). Mainly strong winds.

Thursday
17
Friday
18
Saturday
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
0
0
0
0
0
0
0
0
1
2
2
3
4
7
7
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)
0.7
E
12
0.8
E
12
0.6
SE
8
0.6
E
12
0.4
SE
8
0.2
SSE
9
0.3
SE
8
0.3
SE
8
0.6
E
11
0.6
E
12
0.2
SSE
9
0.3
SE
8
0.2
SSE
12
0.3
SE
11
0.4
SE
14
0.8
SE
14
1.6
SE
13
2.1
SE
13
3
SE
16
3.5
SE
14
4
SE
14
4
SE
13
5
SE
13
4.5
SE
13
Wave Graph
Metric surfscale
Energy kJ
141
184
36
103
14
8
9
10
91
98
7
10
13
23
51
228
839
1374
4585
4749
5650
6007
7689
7058
Wind (km/h)
30
NNE
35
N
35
NNE
30
NE
35
NNE
35
NE
35
NE
40
NNE
40
NNE
45
NNE
45
NNE
45
NNE
45
NNE
45
NNE
45
NNE
45
NNE
45
N
45
NNE
45
NNE
45
N
40
NNE
40
NNE
35
NNE
35
NNE
Wind State
cross-off
cross-off
cross-off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
High Tide
8:23AM1.21m
6:51PM1.45m
9:37AM1.11m
7:13PM1.38m
7:37PM1.30m
Low Tide
1:34AM0.37m
1:09PM0.94m
2:17AM0.44m
1:24PM1.02m
3:17AM0.52m
light rain
light rain
light rain
rain showers
cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
mod rain
light rain
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:24
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:44
5:43
 mm
3
1
1
1
3
6
1
Temp °C
21
20
20
20
21
23
21
20
19
19
19
19
20
21
21
21
21
21
21
21
22
22
23
23
Feels °C
19
16
16
17
17
19
16
15
13
13
13
12
14
16
16
16
16
16
17
16
19
19
21
20
  • 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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