Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera 48 hour detailed Surf Forecast

Issued: 2 am 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
27.6° C
0.7° 

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 (11 Aug):

  • Morning surf: Morning surf (11 Aug, local time) - 6.5ft (2.0m), 11s period with E swell.
  • Afternoon surf: Afternoon surf (11 Aug, local time) - 6ft (1.8m), 12s period with E swell.
  • Evening surf: Evening surf (11 Aug, local time) - 5.5ft (1.7m), 10s period with SSW swell.

The current surf forecast for Mera at 7AM is: 0.7m 11s primary swell from a Southwest direction (forecast issued at 02:00am August 11). An open ocean swell of 2.0m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (JST) & DateWave HeightWave Period
Morning (11 Aug)6.5ft (2.0m)11s
Afternoon (11 Aug)6ft (1.8m)12s
Evening (11 Aug)5.5ft (1.7m)10s

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


Short Range Forecast

Heavy rain (total 53mm), heaviest during Tue night. Warm (max 27°C on Thu morning, min 21°C on Tue night). Winds decreasing (strong winds from the SW on Tue afternoon, light winds from the E by Tue night).

Tuesday
11
Wednesday
12
Thursday
13
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)
4
2
1
3
0
0
0
0
0
1
2
1
2
1
2
2
1
1
2
2
3
3
3
3
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)
2.1
E
10
0.8
SW
11
0.6
SW
11
2
E
11
1.9
E
12
1.8
E
12
1.6
SW
11
1.7
SSW
10
0.7
SW
10
1.1
E
11
1
E
10
1
E
10
1
E
10
1
E
10
1
E
10
1
E
9
1
E
9
1.1
E
9
1.2
E
10
1.4
E
9
1.4
E
10
1.5
E
10
1.5
E
10
1.5
E
10
Wave Graph
Metric surfscale
Energy kJ
973
147
103
1042
959
864
538
613
104
281
202
198
186
186
183
175
171
211
257
347
379
461
489
479
Wind (km/h)
20
NNE
25
NNE
15
NNE
15
WNW
25
WSW
45
SW
40
SW
35
S
30
SSE
25
ESE
15
E
15
ESE
15
ENE
20
NNE
20
NE
20
NNE
20
NNE
20
NNE
20
NNE
20
NE
15
NE
15
E
15
ENE
15
ENE
Wind State
off
off
off
cross
cross-on
on
on
cross-on
cross
cross-off
cross-off
cross-off
off
cross-off
off
off
cross-off
cross-off
off
off
off
cross-off
cross-off
off
High Tide
2:08AM1.46m
4:56PM1.46m
3:10AM1.54m
5:22PM1.49m
4:02AM1.60m
5:47PM1.51m
Low Tide
9:11PM1.12m
9:34AM0.04m
9:54PM1.01m
10:19AM0.00m
10:33PM0.88m
10:58AM0.02m
part cloud
clear
part cloud
cloud
cloud
light rain
mod rain
heavy rain
light rain
light rain
light rain
light rain
light rain
cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:56
4:56
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:34
6:32
6:31
 mm
2
6
20
3
2
3
2
2
1
3
1
1
1
2
1
1
Temp °C
23
23
22
24
24
24
24
23
23
22
21
23
24
25
24
24
24
24
24
26
27
27
26
26
Feels °C
22
21
21
24
23
19
21
20
20
20
21
23
24
25
23
24
24
25
25
27
29
29
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 

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