Mera Surf Break

Mera 48 hour detailed Surf Forecast

Lat Long: 34.90° N 139.84° E

Issued: 2 pm 04 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.7° 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 (04 Jul):

  • Afternoon surf: Afternoon surf (04 Jul, local time) - 1.5ft (0.4m), 7s period with SW swell.
  • Evening surf: Evening surf (04 Jul, local time) - 1.5ft (0.4m), 11s period with SE swell.

The current surf forecast for Mera at 9PM is: 0.4m 11s primary swell from a Southeast direction and 0.4m 4s secondary swell from a Southeast direction, 0.4m 4s secondary swell from a South-southwest direction (forecast issued at 02:00pm July 04). An open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (JST) & DateWave HeightWave Period
Morning (04 Jul)--
Afternoon (04 Jul)1.5ft (0.4m)7s
Evening (04 Jul)1.5ft (0.4m)11s

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 70mm), heaviest during Mon night. Warm (max 24°C on Sat afternoon, min 21°C on Mon night). Winds increasing (light winds from the SSE on Sat night, strong winds from the NE by Mon night).

Sat
4
Sunday
5
Monday
6
Tue
7
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
12 AM
3 AM
6 AM
9 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
2
1
1
1
1
1
1
2
1
Swell
Height Map
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)
0.4
SW
7
0.4
SW
7
0.4
SE
11
0.4
SE
11
0.3
SE
10
0.3
ESE
11
0.3
ESE
11
0.4
ESE
10
0.4
ESE
10
1.2
SE
5
1.6
SE
6
1.8
SE
6
1.9
SE
6
1.8
SE
6
1.7
SE
6
1.9
ESE
7
2.1
ESE
7
2.1
E
7
1.9
E
8
1.8
E
8
0.9
SE
12
1
SE
12
1.1
SSE
16
1.3
SSE
16
Wave Graph
Metric surfscale
Energy kJ
16
12
30
29
15
23
22
40
34
80
171
239
269
255
245
302
420
483
403
357
246
292
596
740
Wind (km/h)
15
SSE
20
SSE
15
SSE
10
SSE
15
SW
5
SSE
5
ESE
10
ESE
20
SE
20
SE
20
ESE
20
ESE
20
ESE
20
ESE
25
E
20
ESE
25
ESE
30
ESE
30
ESE
30
E
25
ENE
40
NE
45
NE
40
NNE
Wind State
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
High Tide
8:04PM1.35m
6:47AM1.34m
8:30PM1.34m
7:38AM1.27m
8:57PM1.33m
8:41AM1.18m
Low Tide
1:06PM0.15m
1:27AM0.80m
1:40PM0.25m
2:11AM0.75m
2:15PM0.39m
3:04AM0.68m
rain showers
cloud
light rain
light rain
light rain
light rain
clear
cloud
light rain
light rain
cloud
cloud
cloud
light rain
cloud
light rain
light rain
light rain
mod rain
mod rain
heavy rain
heavy rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:31
4:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:58
6:57
6:57
 mm
1
1
1
2
2
1
1
1
1
3
5
7
9
16
14
3
2
Temp °C
23
24
23
23
22
22
22
23
24
24
23
23
23
22
22
22
22
22
22
22
22
22
21
21
Feels °C
23
24
24
25
23
25
24
25
25
24
23
22
23
22
21
21
21
20
21
21
21
19
16
17
Swell 1
Height (m)
Direction
Period (s)
0.4
ENE
7
0.4
ENE
8
0.5
E
8
0.5
E
8
0.5
E
8
0.6
S
4
0.4
ENE
8
0.4
ESE
10
0.4
ENE
8
0.4
ESE
10
0.1
SE
15
0.3
SE
15
0.4
SE
15
0.5
SE
15
0.6
SE
15
0.7
SE
14
0.8
SE
14
0.9
SE
13
1.9
E
8
1.8
E
8
1.5
E
7
1.3
E
7
1.5
E
7
1.3
SSE
16
Energy kJ
20
22
33
33
32
11
19
40
19
33
9
34
55
104
174
208
241
286
403
357
246
186
223
740
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
7
0.4
SW
7
0.4
SE
11
0.4
SE
4
0.3
SE
10
0.5
E
8
0.3
ESE
11
0.4
ENE
8
0.4
ESE
10
0.1
SE
10
0.1
SW
6
0.2
WSW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.4
SE
17
0.3
SW
7
1
SE
13
1
SE
13
0.9
SE
12
1
SE
12
1.1
SSE
16
0.9
SE
12
Energy kJ
16
11
30
5
15
30
22
19
34
4
1
4
11
11
11
16
75
7
342
352
244
292
596
224
Swell 3
Height (m)
Direction
Period (s)
0.3
ESE
9
0.2
ESE
11
0.4
SW
7
0.4
SE
11
0.2
ESE
11
0.3
ESE
11
0.3
SE
10
0.2
WSW
6
0.2
SSE
9
0.1
SW
6
0.1
NE
9
0.1
SE
19
0.2
SSE
18
0.3
ESE
11
0.2
E
11
0.2
ESE
11
0.4
SW
7
0.1
S
7
0.3
SW
6
0.3
SSE
18
0.7
SSE
15
0.7
SSE
16
0.8
SE
12
0.3
SW
7
Energy kJ
16
12
11
29
12
23
15
4
9
1
3
15
31
23
9
12
11
1
7
66
209
234
190
7
Wind waves
Height (m)
Direction
Period (s)
0.4
SSE
5
0.5
SSE
3
0.6
SSE
4
0.4
SSW
4
0.6
S
4
0.5
S
4
0.5
SSE
4
0.8
SSE
4
1.2
SE
5
1.6
SE
6
1.8
SE
6
1.9
SE
6
1.8
SE
6
1.7
SE
6
1.9
ESE
7
2.1
ESE
7
2.1
E
7
0.6
NNW
4
0.9
N
4
1.1
N
4
1
N
5
1.8
ENE
8
Energy kJ
11
6
12
6
12
8
9
25
80
171
239
269
255
245
302
420
483
15
28
48
41
372
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
3
1
2
3
3
3
Distance (km)
64
64
64
64
64
35
35
504
504
153
544
47
47
47
39
39
47
504
483
47
77
244
244
153
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
1
1
1
1
1
2
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
3
Header Global
Rating
(10 max)
5
5
5
5
5
4
5
5
9
9
9
8
6
5
5
6
6
6
5
5
8
8
8
8
  • 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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