Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 am 22 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.5° C

Normal for this time of year

Mera surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Mera surf forecast from 22 Jun 2026:

  • Best quality surf: Monday 29 Jun, 3AM (local time) - 13ft (4.0m), 12s period, SW swell with glassy winds.
  • Most powerful swell: Monday 29 Jun, 3AM (local time) - 13ft (4.0m), 12s period, SW swell with 4,507 kJ wave energy.
  • Next surfable swell (1★+): Monday 22 Jun, 12PM (local time) - 4ft (1.2m), 8s period with SW swell.

Best Forecast Surf Conditions for Mera this week:

The surf forecast for Mera over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jun 22) at 12PM. The primary swell is predicted to be 1.2m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 4.0m 12s and forecast to arrive on Monday (Jun 29) at 3AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 9s period and expected on Wednesday (Jun 24) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Mon 22nd Jun)4ft (1.2m) 8s
Best Surf 3AM (Mon 29th Jun)13ft (4.0m) 12s
Most Powerful 3AM (Mon 29th Jun)13ft (4.0m) 12s

Table - best surf conditions forecast for Mera over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 16mm), heaviest on Mon night. Warm (max 22°C on Mon morning, min 19°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 87mm), heaviest during Thu afternoon. Warm (max 24°C on Fri afternoon, min 21°C on Thu morning). Winds increasing (calm on Thu morning, near gales from the SW by Fri afternoon).

Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
1
0
0
0
0
1
1
0
0
0
0
0
2
0
1
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SW
8
1.1
SW
7
1.1
E
9
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.4
SE
11
0.6
SE
11
0.6
SSW
12
0.5
SW
12
2.5
S
6
4
SW
8
3.5
SW
8
3
SW
8
0.9
SW
13
1.4
SW
13
1.2
SW
12
1
SW
12
1
SW
12
4
SW
9
Wave Graph
Metric surfscale
Energy kJ
221
121
217
60
59
56
55
40
71
103
68
567
2180
1826
1114
277
659
430
272
272
2586
Wind (km/h)
10
NE
10
ESE
15
ENE
15
ENE
10
ESE
20
ENE
20
NE
15
ENE
10
NE
0
NE
25
E
25
SW
50
SW
50
SW
25
WSW
5
NW
15
SW
10
SW
25
SSW
45
SSW
20
W
Wind State
off
cross-off
cross-off
off
cross-off
off
off
off
off
glassy
cross-off
on
on
on
cross-on
cross
on
on
on
cross-on
cross-on
High Tide
9:42AM1.08m
10:23PM1.27m
11:30AM1.02m
10:59PM1.28m
1:21PM1.04m
11:41PM1.29m
2:46PM1.12m
00:28AM1.32m
3:44PM1.20m
1:19AM1.34m
4:27PM1.26m
2:08AM1.37m
5:03PM1.31m
2:53AM1.39m
Low Tide
3:46PM0.59m
5:17AM0.61m
4:35PM0.76m
6:29AM0.50m
5:36PM0.89m
7:28AM0.39m
6:51PM0.98m
8:17AM0.29m
8:01PM1.01m
9:00AM0.20m
8:58PM1.01m
9:40AM0.14m
9:46PM0.98m
part cloud
light rain
heavy rain
light rain
part cloud
part cloud
part cloud
part cloud
cloud
light rain
heavy rain
heavy rain
rain showers
clear
clear
clear
part cloud
rain showers
light rain
mod rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:26
4:26
4:26
4:28
4:28
4:28
4:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:57
6:57
6:58
6:58
6:58
6:58
 mm
2
13
1
2
34
48
1
2
1
6
1
Temp °C
22
22
20
21
22
21
21
21
21
22
22
23
23
24
24
24
24
23
24
25
25
Feels °C
23
23
20
22
23
21
21
21
21
26
20
20
18
18
21
27
24
23
25
18
16
Swell 1
Height (m)
Direction
Period (s)
1.3
SW
8
1.1
SW
7
0.7
SW
7
1.2
ENE
10
1.2
ENE
10
1.3
ENE
10
1.3
ENE
9
0.4
SE
11
0.9
ENE
9
0.7
ENE
8
0.6
E
8
0.2
ENE
10
0.2
ENE
10
0.4
SE
11
0.7
SW
13
1.1
SW
7
1.4
SW
13
1.2
SW
12
1
SW
12
1
SW
12
3.5
SW
9
Energy kJ
221
121
49
281
258
295
266
40
123
70
45
10
10
30
171
137
659
430
272
272
2276
Swell 2
Height (m)
Direction
Period (s)
0.8
ENE
10
0.9
ENE
10
0.5
SE
10
0.7
SW
7
0.5
SE
11
0.5
SE
11
0.5
SE
11
0.2
SSW
12
0.6
SE
11
0.6
SSW
12
0.5
SW
12
0.1
E
18
0.2
ESE
18
0.2
ESE
18
0.4
SE
11
0.9
SW
13
0.4
ESE
10
0.4
SE
10
0.7
S
6
0.8
S
7
0.4
ENE
6
Energy kJ
116
151
50
44
59
56
55
13
71
103
68
6
31
31
29
277
39
25
29
60
14
Swell 3
Height (m)
Direction
Period (s)
0.4
SE
10
0.4
SE
10
0.1
S
11
0.5
SE
11
0.4
SW
6
0.4
SW
6
0.1
SW
6
0.1
SW
5
0.3
SW
13
0.4
SE
10
0.4
SE
10
0.4
ENE
7
0.3
SE
11
0.1
NE
11
0.2
ESE
18
0.6
S
6
0.3
ESE
16
0.3
E
9
0.3
E
8
0.3
ESE
15
0.4
WSW
16
Energy kJ
35
35
2
60
13
8
1
1
27
36
35
18
20
4
30
30
51
14
12
44
105
Wind waves
Height (m)
Direction
Period (s)
1.1
E
9
0.5
NE
3
1.1
ENE
9
0.2
SSE
2
2.5
S
6
4
SW
8
3.5
SW
8
3
SW
8
1.4
SW
7
0.9
WSW
7
0.5
SW
6
0.8
NE
4
1.1
ENE
6
4
SW
9
Energy kJ
217
5
211
1
567
2180
1826
1114
211
76
18
22
71
2586
Nearest Offshore or Glassy
Rating
(10 max)
2
1
2
1
1
1
2
1
1
1
1
2
4
2
4
3
3
2
2
4
2
Distance (km)
0
0
0
0
47
244
204
36
0
0
70
33
61
504
36
12
44
36
88
767
73
Best forecast wave conditions in Chiba
Rating
(10 max)
2
1
2
2
1
1
1
2
4
3
3
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
1
1
2
2
2
3
4
3
4
4
4
3
3
3
2
4
4
Header Global
Rating
(10 max)
7
5
6
5
6
5
7
9
8
6
6
5
5
5
5
5
5
5
5
6
6
  • 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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Information about the Mera Surf forecast

The above surf forecast table for Mera provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mera can be found by selecting the local surf guide option on the grey menu. Our Mera surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Mera) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Mera may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Mera is 9 km (6 miles) from Tateyama. If you plan a holiday in Chiba, look for hotels and other accommodation in Tateyama. Tateyama has rooms for a wide range of budgets as well as car hire and transport links.

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