Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 pm 28 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.7° 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 28 Jun 2026:

  • Best quality surf: Sunday 28 Jun, 9PM (local time) - 4.5ft (1.3m), 10s period, SW swell with glassy winds.
  • Most powerful swell: Friday 3 Jul, 3AM (local time) - 8ft (2.5m), 7s period, SW swell with 754 kJ wave energy.
  • Next surfable swell (1★+): Sunday 28 Jun, 9PM (local time) - 4.5ft (1.3m), 10s 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 9PM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 1.0m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 2.5m 7s and forecast to arrive on Friday (Jul 03) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Jul 04) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 28th Jun)4.5ft (1.3m) 10s
Best Surf 9PM (Sun 28th Jun)4.5ft (1.3m) 10s
Most Powerful 3AM (Fri 3rd Jul)8ft (2.5m) 7s

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 13mm), heaviest on Sun afternoon. Warm (max 24°C on Mon afternoon, min 21°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 19mm), heaviest on Thu morning. Warm (max 25°C on Wed afternoon, min 20°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the SW by Thu night).

Sun
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
2
0
2
1
0
1
0
0
1
1
1
0
0
1
1
2
1
0
0
0
0
Swell
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
SSW
10
1.2
SW
9
0.9
SW
8
0.8
SSE
9
0.8
SW
8
0.7
SE
9
0.7
SE
9
0.6
SE
9
1
SSW
7
0.6
ESE
9
0.6
ESE
9
0.5
ESE
9
1.1
SSW
4
2.1
SW
6
1.9
SW
7
1.6
SW
8
1.1
SW
8
0.5
SW
7
0.4
SE
11
0.3
SE
10
0.2
ESE
10
Wave Graph
Metric surfscale
Energy kJ
836
246
118
103
88
81
81
67
108
54
53
42
47
341
392
296
145
26
30
17
10
Wind (km/h)
10
SE
15
W
5
NNE
10
SSE
15
WSW
5
NE
5
SSE
10
S
15
NE
15
ENE
5
NW
10
SSE
30
SW
20
N
20
NNE
15
NE
15
NE
15
NE
5
SE
5
SE
5
SE
Wind State
cross
cross-on
off
cross-on
on
off
cross-on
cross-on
off
off
glassy
cross
on
cross-off
cross-off
off
off
off
cross
glassy
cross
High Tide
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
6:04AM1.39m
8:04PM1.35m
6:47AM1.34m
Low Tide
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
1:06PM0.15m
1:27AM0.80m
heavy rain
rain showers
part cloud
clear
clear
part cloud
cloud
part cloud
part cloud
cloud
part cloud
mod rain
mod rain
light rain
cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:28
4:28
4:30
4:30
4:31
4:31
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
6:58
 mm
12
1
9
7
3
Temp °C
22
23
22
24
23
23
24
23
24
25
23
21
23
24
23
24
22
21
22
22
23
Feels °C
25
27
25
27
25
26
27
25
25
25
25
23
23
23
23
24
22
21
24
24
24
Swell 1
Height (m)
Direction
Period (s)
2
SSW
10
1.2
SW
9
0.9
SW
8
0.8
SSE
9
0.7
SE
9
0.7
SE
9
0.7
SE
9
0.7
SSW
7
1
SSW
7
0.6
SW
8
0.7
ESE
6
0.5
E
6
0.4
ESE
8
0.4
ESE
9
0.3
ESE
9
1.6
SW
8
1.1
SW
8
0.5
SW
7
0.4
SW
7
0.9
ENE
9
0.9
ENE
9
Energy kJ
836
246
118
103
88
81
81
44
108
46
39
17
23
26
16
296
145
26
12
149
121
Swell 2
Height (m)
Direction
Period (s)
0.3
E
8
1
SSE
8
0.6
SSE
7
0.7
SW
8
0.3
ESE
14
0.6
SW
8
0.6
SW
7
0.6
SE
9
0.6
ESE
9
0.7
S
6
0.6
ESE
9
0.5
ESE
9
0.4
ESE
6
0.2
ESE
12
0.2
ESE
12
0.3
ESE
9
0.2
ESE
12
0.3
SSE
6
0.4
SE
11
0.4
SW
6
0.2
ESE
10
Energy kJ
12
107
41
64
41
48
34
67
55
41
53
42
10
14
14
16
14
6
30
10
10
Swell 3
Height (m)
Direction
Period (s)
0.3
ESE
15
0.3
ESE
15
0.5
SE
9
0.3
ESE
15
0.2
E
8
0.3
ESE
14
0.3
ESE
14
0.3
ESE
13
0.3
ESE
13
0.6
ESE
9
0.6
SW
7
0.4
SW
6
0.2
ESE
12
0.1
SE
9
0.1
SE
8
0.2
ESE
12
0.1
SE
9
0.2
ESE
9
0.2
S
6
0.3
SE
10
0.3
SW
6
Energy kJ
44
42
41
42
5
36
36
35
35
54
29
13
15
3
3
14
3
8
2
17
5
Wind waves
Height (m)
Direction
Period (s)
0.8
SW
8
0.8
NE
4
0.7
E
4
0.4
SW
3
1.1
SSW
4
2.1
SW
6
1.9
SW
7
1.1
ENE
4
1
ENE
5
1
ENE
9
Energy kJ
69
16
18
2
47
341
392
46
54
151
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
1
2
1
1
1
1
1
1
1
1
1
1
2
1
1
1
2
2
Distance (km)
14
12
0
51
12
0
36
12
0
0
0
64
64
17
39
0
0
811
811
35
64
Best forecast wave conditions in Chiba
Rating
(10 max)
2
2
2
1
2
1
1
1
1
1
1
1
1
2
3
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
2
2
1
1
2
1
1
1
1
2
3
1
3
2
1
1
2
2
Header Global
Rating
(10 max)
5
5
6
7
5
5
5
5
5
5
4
5
9
6
5
5
8
5
4
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)
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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