Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 am 27 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.3° 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 26 Jun 2026:

  • Best quality surf: Sunday 28 Jun, 9AM (local time) - 7ft (2.1m), 11s period, SW swell with cross-offshore winds.
  • Most powerful swell: Sunday 28 Jun, 12AM (local time) - 15ft (4.5m), 12s period, SSW swell with 5,594 kJ wave energy.
  • Next surfable swell (1★+): Sunday 28 Jun, 9AM (local time) - 7ft (2.1m), 11s 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 Sunday (Jun 28) at 9AM. The primary swell is predicted to be 2.1m and 11s period with a secondary swell of 1.6m and 10s. 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 4.5m 12s and forecast to arrive on Sunday (Jun 28) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 7s period and expected on Wednesday (Jul 01) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sun 28th Jun)7ft (2.1m) 11s
Best Surf 9AM (Sun 28th Jun)7ft (2.1m) 11s
Most Powerful12AM (Sun 28th Jun)15ft (4.5m) 12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 167mm), heaviest during Sat night. Warm (max 24°C on Sat afternoon, min 21°C on Sun night). Winds decreasing (strong winds from the S on Sat afternoon, light winds from the E by Sun night).

Days 4-6 Weather Summary

Heavy rain (total 59mm), heaviest during Wed morning. Warm (max 24°C on Tue afternoon, min 20°C on Thu morning). Winds decreasing (fresh winds from the ENE on Wed morning, calm by Wed night).

Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
4
4
2
2
2
2
1
1
1
0
1
1
1
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SSW
9
2.5
SSW
9
4.5
SSW
12
2.1
SW
11
2
SSW
10
1.3
SW
9
0.9
SW
8
0.8
SSE
9
0.7
SE
9
0.7
SE
9
0.7
SE
9
0.7
SE
9
0.9
SSW
7
1
SW
8
1
E
7
0.7
SW
7
0.7
E
7
0.6
SW
7
0.5
SW
8
0.4
SW
8
0.8
E
6
Wave Graph
Metric surfscale
Energy kJ
1261
1107
5594
1127
836
278
120
103
86
81
81
81
68
139
93
54
48
34
28
20
44
Wind (km/h)
30
SW
50
S
25
N
10
SE
25
ESE
15
NNE
15
NE
10
NE
15
NNE
10
NE
5
SE
15
SW
15
NE
30
NE
5
W
15
ESE
20
E
25
NNE
30
NNE
20
NE
20
NE
Wind State
on
cross-on
cross-off
cross-off
cross-off
off
off
off
off
off
glassy
on
off
off
cross-on
cross-off
cross-off
off
off
off
off
High Tide
4:27PM1.26m
2:08AM1.37m
5:03PM1.31m
2:53AM1.39m
5:36PM1.35m
3:34AM1.41m
6:07PM1.37m
4:12AM1.43m
6:38PM1.37m
4:49AM1.43m
7:09PM1.37m
5:26AM1.42m
7:37PM1.36m
Low Tide
8:58PM1.01m
9:40AM0.14m
9:46PM0.98m
10:17AM0.09m
10:26PM0.95m
10:52AM0.05m
11:03PM0.92m
11:27AM0.04m
11:39PM0.90m
12:00PM0.05m
00:14AM0.87m
12:34PM0.08m
00:49AM0.84m
heavy rain
heavy rain
rain showers
light rain
light rain
light rain
cloud
part cloud
clear
part cloud
cloud
mod rain
heavy rain
light rain
light rain
mod rain
mod rain
light rain
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:28
4:28
4:28
4:28
4:30
4:30
4:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:58
6:58
6:58
6:58
6:58
6:58
 mm
20
72
70
2
1
2
7
26
4
1
8
9
4
Temp °C
23
24
24
23
22
22
23
23
22
23
24
23
21
21
22
21
21
21
22
23
21
Feels °C
24
20
25
25
21
24
25
25
23
25
27
25
22
18
24
21
20
21
20
22
20
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
13
0.7
SSW
15
4.5
SSW
12
2.1
SW
11
2
SSW
10
1.3
SW
9
0.9
SW
8
0.8
SW
8
0.7
SE
9
0.7
SW
8
0.7
SE
9
0.7
SE
9
0.9
SSW
7
1
SW
8
1
E
7
0.7
SW
7
0.5
SW
7
0.6
SW
7
0.5
SW
8
0.4
SW
8
0.8
E
6
Energy kJ
374
188
5594
1127
836
278
120
78
86
60
81
81
68
139
93
54
25
34
28
20
44
Swell 2
Height (m)
Direction
Period (s)
0.3
ESE
16
0.3
E
9
0.3
E
9
1.6
S
10
0.3
ESE
15
1
SSE
8
0.7
SSE
7
0.8
SSE
9
0.7
SW
8
0.7
SE
9
0.6
SW
8
0.3
E
5
0.6
SE
9
0.6
ESE
9
0.8
SW
8
0.6
E
6
0.4
ESE
10
0.5
E
7
0.5
E
8
0.3
ESE
9
0.4
SW
7
Energy kJ
51
13
13
470
44
107
52
103
64
81
46
4
67
54
93
28
35
28
33
16
14
Swell 3
Height (m)
Direction
Period (s)
0.2
E
8
0.3
ESE
16
0.2
ESE
16
0.3
E
9
0.2
E
8
0.3
ESE
15
0.5
SE
9
0.3
ESE
15
0.5
ENE
5
0.4
ENE
5
0.3
ENE
4
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
0.6
SE
8
0.6
ESE
8
0.4
SSE
6
0.3
ESE
9
0.3
ESE
9
0.2
ESE
12
0.3
ESE
9
Energy kJ
6
51
25
14
6
42
41
42
13
9
4
35
35
34
57
46
11
17
16
14
16
Wind waves
Height (m)
Direction
Period (s)
3
SSW
9
2.5
SSW
9
0.5
NE
4
0.5
ENE
5
0.5
NE
5
0.6
SW
7
0.6
E
3
1.3
E
6
0.7
E
7
0.6
E
4
0.8
E
5
0.9
E
6
Energy kJ
1261
1107
8
13
11
33
8
103
48
12
33
48
Nearest Offshore or Glassy
Rating
(10 max)
4
3
9
4
1
2
2
2
1
1
1
1
1
1
2
1
1
1
1
1
1
Distance (km)
90
73
51
0
39
0
0
0
0
0
0
12
0
14
12
0
36
148
153
153
40
Best forecast wave conditions in Chiba
Rating
(10 max)
4
9
4
2
2
2
1
1
1
1
1
1
2
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
4
9
4
3
2
2
2
1
1
2
2
1
2
2
2
2
1
1
1
1
Header Global
Rating
(10 max)
5
6
5
9
7
5
6
6
6
5
5
5
5
5
5
5
5
6
5
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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