Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 pm 11 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
22.0° C

Slightly cooler than normal

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


Mera surf forecast from 11 Jun 2026:

  • Best quality surf: Tuesday 16 Jun, 12PM (local time) - 3.5ft (1.0m), 9s period, SW swell with glassy winds.
  • Most powerful swell: Monday 15 Jun, 6PM (local time) - 7.5ft (2.3m), 7s period, E swell with 524 kJ wave energy.
  • Next surfable swell (1★+): Friday 12 Jun, 6AM (local time) - 3ft (0.9m), 9s 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 Friday (Jun 12) at 6AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.8m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 2.3m 7s and forecast to arrive on Monday (Jun 15) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Monday (Jun 15) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Fri 12th Jun)3ft (0.9m) 9s
Best Surf12PM (Tue 16th Jun)3.5ft (1.0m) 9s
Most Powerful 6PM (Mon 15th Jun)7.5ft (2.3m) 7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 7mm), mostly falling on Fri night. Warm (max 23°C on Sat afternoon, min 21°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 26mm), heaviest during Mon afternoon. Warm (max 22°C on Sun afternoon, min 17°C on Mon morning). Mainly strong winds.

Thu
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
1
0
0
1
0
0
0
0
0
0
0
0
2
1
1
0
0
1
1
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)
1.1
SW
9
0.9
SW
9
0.8
SW
9
0.7
SW
9
0.6
SW
8
0.9
ESE
8
0.8
ESE
8
0.9
E
8
0.9
E
8
0.9
E
8
1
E
8
1.2
ESE
8
2
E
6
1.5
S
9
1.5
E
8
1.3
E
8
1
E
8
1
SSW
8
0.9
SSW
8
0.7
E
9
1
SSW
5
Wave Graph
Metric surfscale
Energy kJ
198
138
95
76
45
81
79
105
113
115
144
207
295
343
280
223
130
113
109
74
50
Wind (km/h)
25
S
15
SSW
5
W
15
SSW
10
SW
0
WNW
15
SSW
15
SSW
10
S
20
SSE
15
SE
25
E
40
ENE
40
N
25
N
10
SE
5
SSE
10
SE
10
SSE
10
ESE
5
ENE
Wind State
cross-on
cross-on
glassy
on
on
glassy
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross
cross
cross-off
cross-off
High Tide
00:53AM1.33m
3:12PM1.26m
1:38AM1.39m
4:13PM1.36m
2:24AM1.45m
5:06PM1.42m
3:10AM1.50m
5:55PM1.45m
3:57AM1.53m
6:41PM1.44m
4:43AM1.53m
7:24PM1.41m
5:31AM1.49m
Low Tide
7:03PM0.83m
8:09AM0.20m
8:11PM0.91m
8:58AM0.03m
9:10PM0.96m
9:46AM-0.10m
10:01PM0.98m
10:33AM-0.18m
10:48PM0.99m
11:20AM-0.20m
11:33PM0.97m
12:07PM-0.17m
00:17AM0.94m
part cloud
rain showers
rain showers
thunderstorm
thunderstorm
clear
clear
clear
clear
part cloud
light rain
mod rain
heavy rain
mod rain
part cloud
clear
part cloud
part cloud
clear
rain showers
mod rain
<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>
6:52
6:53
6:53
6:54
6:54
6:54
6:55
6:55
 mm
3
1
1
2
2
7
11
6
3
10
Temp °C
22
21
21
22
22
21
23
22
22
22
21
19
18
19
20
20
20
22
22
22
21
Feels °C
19
20
23
21
22
23
23
22
23
21
20
15
13
14
21
20
21
24
23
23
23
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
9
0.9
SW
9
0.8
SW
9
0.7
SW
9
0.6
SW
8
0.9
ESE
8
0.8
ESE
8
0.9
E
8
0.9
E
8
0.9
E
8
1
E
8
0.1
SE
9
0.2
ESE
13
1.5
S
9
1.5
E
8
1.3
E
8
1
E
8
0.7
E
8
0.7
E
8
0.7
E
9
0.7
SW
7
Energy kJ
198
138
95
76
45
81
79
105
113
115
144
3
18
343
280
223
124
58
60
74
44
Swell 2
Height (m)
Direction
Period (s)
0.5
E
7
0.5
E
7
0.7
SSE
7
0.6
SSE
7
0.4
SW
11
0.7
SW
8
0.6
SW
8
0.5
SW
8
0.4
SSE
6
0.3
SW
7
0.3
SW
7
0.1
SW
7
0.1
SW
7
1.5
E
8
1.1
SW
9
0.9
SSW
9
0.1
SE
20
0.1
SE
9
0.2
SSE
10
0.2
SSE
10
0.6
E
8
Energy kJ
27
24
49
34
29
72
43
32
13
9
8
2
2
294
182
129
15
3
9
10
50
Swell 3
Height (m)
Direction
Period (s)
0.1
E
15
0.3
S
7
0.4
ENE
6
0.4
ENE
6
0.3
E
5
0.4
SSE
7
0.4
SSE
7
0.2
S
7
0.3
SW
8
0.2
ESE
15
0.2
ESE
15
0.1
SE
14
0.1
S
24
1.4
ESE
8
0.6
S
7
0.1
SE
13
0.1
SE
11
0.1
SE
12
0.1
E
12
0.1
SE
16
0.5
SSE
5
Energy kJ
4
9
14
14
5
15
15
4
9
21
21
8
11
277
39
7
5
6
3
10
12
Wind waves
Height (m)
Direction
Period (s)
0.9
SSE
7
0.9
SSE
7
0.6
S
6
0.3
WSW
4
0.3
SW
4
0.5
S
6
0.6
SSE
6
1.2
ESE
8
2
E
6
1.4
N
5
0.5
NNW
4
0.5
S
7
1
SSW
8
1
SSW
8
0.9
SSW
8
0.9
SSW
4
1
SSW
5
Energy kJ
84
76
27
3
3
22
25
207
295
92
11
23
130
113
109
34
44
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
2
2
1
2
2
1
1
1
1
Distance (km)
64
61
0
36
33
0
64
64
36
64
2040
64
483
148
43
56
12
36
36
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
4
2
2
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
2
1
1
1
1
1
1
1
3
3
3
2
2
2
2
1
1
2
Header Global
Rating
(10 max)
6
6
6
9
8
5
5
5
5
5
6
5
5
5
5
5
5
4
4
4
4
  • 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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