Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 am 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: Tuesday 16 Jun, 6AM (local time) - 6.5ft (2.0m), 9s period, E swell with offshore winds.
  • Most powerful swell: Monday 22 Jun, 12AM (local time) - 10ft (3.0m), 8s period, SW swell with 1,082 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 16 Jun, 6AM (local time) - 6.5ft (2.0m), 9s period with E 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 2.0m and 9s period with a secondary swell of 0.1m and 21s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 3.0m 8s and forecast to arrive on Monday (Jun 22) 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 1.9m 7s period and expected on Monday (Jun 15) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Tue 16th Jun)6.5ft (2.0m) 9s
Best Surf 6AM (Tue 16th Jun)6.5ft (2.0m) 9s
Most Powerful12AM (Mon 22nd Jun)10ft (3.0m) 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 22mm), heaviest during Wed night. Warm (max 22°C on Wed morning, min 17°C on Mon night). Winds decreasing (fresh winds from the NE on Mon morning, calm by Tue morning).

Days 4-6 Weather Summary

Heavy rain (total 71mm), heaviest during Thu morning. Warm (max 23°C on Fri morning, min 20°C on Sat night). Winds decreasing (strong winds from the S on Thu morning, light winds from the SE by Thu night).

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
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
2
2
1
1
0
0
0
0
2
0
0
0
1
1
0
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
S
6
1.6
ESE
8
2.3
E
9
1.7
E
9
1.5
E
9
1.1
E
9
0.4
SW
7
0.3
SE
11
0.2
SSE
10
0.6
SW
9
2.5
SSW
8
0.9
SW
8
0.8
SW
8
0.7
SW
8
0.7
SW
8
0.9
E
8
0.6
SW
7
0.9
E
8
0.5
SW
8
2.1
S
6
3
SW
8
Wave Graph
Metric surfscale
Energy kJ
11
331
885
449
335
186
12
18
10
65
824
115
88
58
60
107
34
108
32
328
1082
Wind (km/h)
35
NE
35
NNE
25
NNE
10
NNE
10
SSE
10
S
10
S
20
S
20
S
40
S
10
WNW
10
WSW
15
E
20
ESE
15
E
25
E
20
E
25
ENE
25
ESE
5
WNW
45
N
Wind State
off
cross-off
cross-off
off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-off
High Tide
5:55PM1.45m
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
Low Tide
10:33AM-0.18m
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
light rain
rain showers
clear
clear
clear
part cloud
clear
part cloud
rain showers
heavy rain
heavy rain
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
heavy rain
heavy rain
light 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>
6:54
6:54
6:55
6:55
6:55
6:57
6:57
 mm
4
1
17
52
17
2
32
14
4
Temp °C
18
19
18
19
20
21
22
22
21
22
21
22
23
22
22
22
22
21
21
22
19
Feels °C
13
15
15
20
20
21
22
21
20
19
22
23
23
21
22
21
21
20
20
25
13
Swell 1
Height (m)
Direction
Period (s)
0.4
S
6
1.6
ESE
8
2.3
E
9
1.7
E
9
1.5
E
9
1.1
E
9
1
ENE
9
0.9
ENE
9
0.9
ENE
9
0.6
SW
9
2.5
SSW
8
0.9
SW
8
0.8
SW
8
0.7
SW
8
0.7
SW
8
0.6
SW
8
0.6
SW
7
0.6
SW
8
0.5
SW
8
0.4
ENE
9
2.5
SW
8
Energy kJ
11
331
885
449
335
186
166
140
147
65
824
115
88
58
60
46
33
35
32
29
794
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
14
0.5
S
8
0.1
S
22
0.3
SSW
7
0.4
SSW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.2
SSW
7
0.1
SE
16
0.9
ENE
10
0.9
SSE
7
0.7
SSE
6
0.6
ENE
9
0.5
E
8
0.4
SE
10
0.4
ENE
8
0.4
SE
9
0.3
SE
11
0.1
E
17
0.6
SE
10
Energy kJ
8
34
9
10
21
14
12
12
5
10
135
73
34
59
36
34
26
31
20
6
61
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
7
0.1
NW
6
0.1
SE
13
0.1
SE
13
0.4
SE
7
0.2
SSE
6
0.3
SE
11
0.2
SSE
10
0.1
SE
16
0.4
SE
10
0.7
ENE
9
0.6
ENE
9
0.5
SSE
6
0.4
SE
10
0.2
SSE
13
0.4
SE
10
0.2
SSE
12
0.1
E
18
0.1
S
16
0.4
ENE
9
Energy kJ
2
1
7
7
11
4
18
10
10
27
88
62
18
35
16
34
14
6
5
31
Wind waves
Height (m)
Direction
Period (s)
1.6
ENE
6
1.8
ENE
8
0.7
N
4
0.4
SE
3
1.6
ESE
5
0.8
NNW
5
0.6
SE
5
0.9
E
8
0.9
ESE
4
0.9
E
8
1.5
ESE
5
2.1
S
6
3
SW
8
Energy kJ
167
412
16
2
139
28
16
107
32
108
113
328
1082
Nearest Offshore or Glassy
Rating
(10 max)
2
2
4
2
2
2
2
2
2
2
3
2
1
1
1
1
1
1
3
1
4
Distance (km)
244
153
33
0
64
64
64
64
64
153
12
12
47
47
0
533
204
56
850
14
153
Best forecast wave conditions in Chiba
Rating
(10 max)
4
3
2
2
2
2
2
3
2
1
1
1
1
Best forecast wave conditions in Japan
Rating
(10 max)
2
3
4
3
2
2
3
4
2
2
3
2
1
1
1
2
2
2
3
1
4
Header Global
Rating
(10 max)
9
5
5
5
5
5
4
5
4
5
6
8
9
7
5
9
7
5
4
5
7
  • 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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