Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 8 am 28 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.8° 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, 6PM (local time) - 5.5ft (1.7m), 10s period, SW swell with offshore winds.
  • Most powerful swell: Sunday 5 Jul, 3PM (local time) - 5ft (1.5m), 16s period, SE swell with 1,096 kJ wave energy.
  • Next surfable swell (1★+): Sunday 28 Jun, 6PM (local time) - 5.5ft (1.7m), 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 6PM. The primary swell is predicted to be 1.7m and 10s period with a secondary swell of 1.4m and 10s. Another secondary swell of 1.1m and 8s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 1.5m 16s and forecast to arrive on Sunday (Jul 05) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Friday (Jul 03) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sun 28th Jun)5.5ft (1.7m) 10s
Best Surf 6PM (Sun 28th Jun)5.5ft (1.7m) 10s
Most Powerful 3PM (Sun 5th Jul)5ft (1.5m) 16s

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 15mm), heaviest on Sun afternoon. Warm (max 24°C on Tue afternoon, min 21°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Wed night. Warm (max 25°C on Thu morning, min 21°C on Thu night). Winds increasing (calm on Wed morning, strong winds from the SW by Thu morning).

Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
2
1
1
1
2
1
1
1
3
0
0
0
0
1
2
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)
2.5
SSW
11
2
SSW
10
1.2
SW
9
0.8
SW
8
0.8
SSE
9
1
SW
7
0.7
SE
9
0.6
SE
9
1.2
SSW
6
1.6
SW
7
1.4
SW
7
1.2
SSW
7
1.6
SW
6
2.4
SW
7
2.5
SW
8
1.5
SW
8
0.9
SW
8
0.6
SW
7
0.4
SW
7
0.3
SW
7
0.3
SE
19
Wave Graph
Metric surfscale
Energy kJ
1633
810
246
100
103
99
86
67
87
262
205
116
206
541
886
306
101
34
17
7
59
Wind (km/h)
15
SE
20
ESE
5
NW
5
N
10
SSW
5
SSW
10
ENE
10
ESE
5
S
0
SSE
20
SW
15
SSW
45
SW
45
SW
20
WNW
20
ENE
20
E
15
E
10
E
15
SE
20
S
Wind State
cross-off
cross-off
cross
glassy
cross-on
glassy
off
cross-off
glassy
glassy
on
cross-on
on
on
cross
off
cross-off
cross-off
cross-off
cross
cross-on
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
Low Tide
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
1:06PM0.15m
1:27AM0.80m
light rain
mod rain
rain showers
part cloud
clear
clear
thunderstorm
clear
clear
part cloud
cloud
thunderstorm
light rain
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:28
4:28
4:28
4:30
4:30
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
 mm
3
9
2
1
5
1
1
Temp °C
22
22
22
22
23
23
23
24
23
24
24
23
25
25
24
23
23
21
23
23
22
Feels °C
22
24
25
25
25
25
25
26
26
27
25
24
20
21
21
23
22
21
24
23
22
Swell 1
Height (m)
Direction
Period (s)
2.5
SSW
11
2
SSW
10
1.2
SW
9
0.8
SW
8
0.8
SSE
9
1
SW
7
0.7
SE
9
0.7
SW
7
0.6
SE
9
1.4
SW
8
0.6
ESE
9
0.6
ESE
9
0.5
ESE
9
0.4
ESE
9
0.4
SE
9
1.5
SW
8
0.9
SW
8
0.8
ENE
8
0.6
ENE
9
0.5
ENE
9
0.4
ENE
8
Energy kJ
1633
810
246
100
103
99
86
56
67
204
54
53
43
29
21
306
101
78
61
43
26
Swell 2
Height (m)
Direction
Period (s)
0.3
E
9
0.3
E
8
1
SSE
8
0.6
SSE
7
0.8
SW
8
0.6
SE
9
0.6
SW
8
0.6
SE
9
0.3
ESE
13
0.6
ESE
9
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
0.2
ESE
12
0.2
ESE
12
0.3
ESE
9
0.3
ESE
9
0.6
SW
7
0.4
SW
7
0.3
SW
7
0.5
SE
10
Energy kJ
14
12
107
41
78
71
46
67
35
55
34
33
32
15
14
17
16
34
17
7
52
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
16
0.3
ESE
15
0.3
ESE
15
0.5
SE
9
0.3
ESE
15
0.3
ESE
14
0.3
ESE
14
0.3
ESE
14
0.1
NE
10
0.3
ESE
13
0.2
ENE
10
0.2
ENE
10
0.1
NE
10
0.1
NE
10
0.1
NE
10
0.2
ESE
12
0.2
ESE
12
0.4
SE
9
0.3
SE
7
0.3
SE
6
0.3
SE
19
Energy kJ
25
44
42
40
42
41
36
36
4
35
11
10
4
4
4
14
14
20
7
6
59
Wind waves
Height (m)
Direction
Period (s)
0.3
NE
6
0.3
ENE
3
0.1
NE
4
1.2
SSW
6
1.6
SW
7
1.4
SW
7
1.2
SSW
7
1.6
SW
6
2.4
SW
7
2.5
SW
8
0.9
NE
4
1
ENE
5
0.5
SW
3
Energy kJ
6
2
1
87
262
205
116
206
541
886
28
49
4
Nearest Offshore or Glassy
Rating
(10 max)
4
2
2
1
1
2
1
1
1
3
1
1
1
2
3
2
1
2
1
1
1
Distance (km)
0
14
12
0
36
0
0
0
0
0
64
64
804
483
33
0
36
56
64
64
64
Best forecast wave conditions in Chiba
Rating
(10 max)
4
2
2
2
1
2
1
1
2
3
1
1
3
2
2
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
4
2
2
2
2
2
2
1
3
3
1
1
2
2
3
2
1
2
1
1
1
Header Global
Rating
(10 max)
8
5
9
7
5
5
5
5
5
5
5
5
9
9
6
5
5
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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