Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 8 pm 15 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.0° 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 15 Jun 2026:

  • Best quality surf: Thursday 18 Jun, 12PM (local time) - 8ft (2.5m), 8s period, SSW swell with glassy winds.
  • Most powerful swell: Sunday 21 Jun, 3AM (local time) - 11ft (3.5m), 8s period, SW swell with 1,605 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 16 Jun, 6AM (local time) - 6ft (1.8m), 9s period with ESE 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 Tuesday (Jun 16) at 6AM. The primary swell is predicted to be 1.8m and 9s period with a secondary swell of 0.2m and 13s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 3.5m 8s and forecast to arrive on Sunday (Jun 21) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 10s period and expected on Monday (Jun 22) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Tue 16th Jun)6ft (1.8m) 9s
Best Surf12PM (Thu 18th Jun)8ft (2.5m) 8s
Most Powerful 3AM (Sun 21st Jun)11ft (3.5m) 8s

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 53mm), heaviest during Wed night. Warm (max 23°C on Thu morning, min 18°C on Mon night). Mainly strong winds.

Days 5-7 Weather Summary

Heavy rain (total 63mm), heaviest during Sat night. Warm (max 24°C on Fri afternoon, min 21°C on Sun morning). Winds increasing (calm on Thu night, fresh winds from the SSW by Sat night).

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
2
2
0
0
0
0
0
1
0
1
1
1
1
0
0
2
1
1
1
2
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)
2.1
E
9
1.6
E
8
1.4
E
8
1.1
E
9
0.4
SW
7
0.3
SE
11
0.8
SSE
5
2.1
SSW
7
1.9
SSW
8
0.9
SW
8
1.1
SSW
8
0.8
SW
8
0.6
SW
8
0.6
E
9
0.4
SE
10
3
SW
8
2.5
WSW
9
1.8
SW
9
1.2
SW
9
1.1
SW
8
1
SW
8
Wave Graph
Metric surfscale
Energy kJ
694
368
271
186
12
18
28
431
463
98
145
84
45
59
34
1020
1198
486
220
151
113
Wind (km/h)
20
NNE
5
ENE
15
S
15
S
25
S
20
SSE
40
S
20
N
10
SSW
0
N
10
E
15
ESE
15
E
20
E
20
ESE
30
SE
30
WNW
35
NNW
20
N
10
N
10
S
Wind State
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-on
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-on
High Tide
3:57AM1.53m
6:41PM1.44m
4:43AM1.53m
7:24PM1.41m
5:31AM1.49m
8:05PM1.36m
6:21AM1.42m
8:42PM1.32m
7:16AM1.31m
9:17PM1.29m
8:19AM1.19m
9:50PM1.27m
9:42AM1.08m
Low Tide
10:48PM0.99m
11:20AM-0.20m
11:33PM0.97m
12:07PM-0.17m
00:17AM0.94m
12:52PM-0.08m
1:03AM0.90m
1:36PM0.06m
1:54AM0.85m
2:20PM0.22m
2:52AM0.79m
3:02PM0.41m
4:00AM0.71m
3:46PM0.59m
clear
clear
part cloud
part cloud
part cloud
light rain
heavy rain
rain showers
clear
clear
clear
clear
part cloud
cloud
light rain
heavy rain
heavy rain
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:26
4:26
4:26
4:26
4:26
4:26
4:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:54
6:54
6:55
6:55
6:55
6:57
6:57
6:57
 mm
1
51
1
2
48
13
Temp °C
18
20
21
21
20
21
22
23
23
23
23
24
23
23
23
23
22
22
21
21
23
Feels °C
15
21
20
21
17
20
19
26
24
26
24
25
25
24
24
21
20
18
19
22
24
Swell 1
Height (m)
Direction
Period (s)
2.1
E
9
1.6
E
8
1.4
E
8
1.1
E
9
0.9
ENE
9
1
E
10
0.9
ENE
10
0.6
ENE
9
1.9
SSW
8
0.9
SSE
6
1.1
SSW
8
0.8
SW
8
0.6
SW
8
0.6
E
9
0.8
ENE
9
0.7
ENE
9
2.2
SW
9
1.8
SW
9
1.2
SW
9
1.1
ENE
9
1.1
ENE
9
Energy kJ
694
368
271
186
123
204
137
69
463
60
145
84
45
59
106
75
747
486
220
201
193
Swell 2
Height (m)
Direction
Period (s)
0.1
E
13
0.4
SSW
7
0.4
SSW
8
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.4
SW
8
0.3
SE
10
0.5
ENE
10
0.9
SW
8
0.4
ENE
9
0.4
ENE
9
0.4
SE
10
0.6
SW
7
0.5
SW
7
0.4
SE
9
0.6
ENE
10
0.6
ENE
10
1
ENE
10
1.1
SW
8
0.5
SE
10
Energy kJ
3
18
22
14
12
12
25
16
55
98
32
32
25
33
25
30
64
61
192
151
48
Swell 3
Height (m)
Direction
Period (s)
0.1
S
22
0.2
ESE
13
0.2
ESE
13
0.4
SE
7
0.3
SE
6
0.3
SE
11
0.2
SSE
10
0.1
SE
16
0.4
SE
9
0.5
ENE
10
0.4
SE
10
0.4
SE
10
0.4
ESE
6
0.4
SE
10
0.4
SE
10
0.3
SE
12
0.4
SE
9
0.4
SE
9
0.5
SE
10
0.5
SE
10
Energy kJ
9
17
17
11
5
18
10
10
23
54
26
35
13
34
34
22
29
29
49
49
Wind waves
Height (m)
Direction
Period (s)
0.2
SSE
6
0.8
SSE
5
2.1
SSW
7
0.7
NW
4
0.2
ENE
4
0.6
SE
6
0.5
SSW
4
3
SW
8
2.5
WSW
9
1
SW
8
Energy kJ
3
28
431
18
2
24
9
1020
1198
113
Nearest Offshore or Glassy
Rating
(10 max)
3
2
2
2
2
2
3
2
2
1
1
1
1
2
3
3
2
3
2
2
1
Distance (km)
12
0
64
64
64
64
153
12
36
0
0
0
0
517
504
57
47
77
12
0
47
Best forecast wave conditions in Chiba
Rating
(10 max)
3
2
2
2
2
2
2
4
1
1
1
1
2
2
2
2
Best forecast wave conditions in Japan
Rating
(10 max)
3
2
2
2
2
2
3
2
4
2
2
1
1
2
3
3
2
3
2
2
1
Header Global
Rating
(10 max)
5
5
5
4
4
5
5
5
8
7
6
5
6
6
4
9
8
9
9
8
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
How to use the Wavefinder
submit an eyeball surf report

Quick surf report for Mera:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mera surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest