Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 am 26 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.3° 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 26 Jun 2026:

  • Best quality surf: Saturday 27 Jun, 9PM (local time) - 8ft (2.5m), 12s period, SSW swell with offshore winds.
  • Most powerful swell: Saturday 27 Jun, 12PM (local time) - 18ft (5.5m), 10s period, SSW swell with 6,593 kJ wave energy.
  • Next surfable swell (1★+): Saturday 27 Jun, 9PM (local time) - 8ft (2.5m), 12s period with SSW 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 Saturday (Jun 27) at 9PM. The primary swell is predicted to be 2.5m and 12s period with a secondary swell of 0.8m and 12s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 5.5m 10s and forecast to arrive on Saturday (Jun 27) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Jun 28) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 27th Jun)8ft (2.5m) 12s
Best Surf 9PM (Sat 27th Jun)8ft (2.5m) 12s
Most Powerful12PM (Sat 27th Jun)18ft (5.5m) 10s

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 97mm), heaviest during Sat night. Warm (max 26°C on Fri afternoon, min 21°C on Sun night). Winds decreasing (severe gales from the SSW on Sat morning, calm by Sun night).

Days 4-6 Weather Summary

Heavy rain (total 85mm), heaviest during Wed morning. Warm (max 24°C on Tue morning, min 22°C on Mon morning). Mainly fresh winds.

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
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
0
0
0
4
4
3
1
2
1
1
1
1
0
0
0
2
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)
2.1
SSW
14
2.2
SW
6
1.1
SW
13
3
SSW
7
3.5
SSW
10
2.5
SSW
11
3
SSW
12
2.2
SSW
11
1.3
SW
10
0.9
SW
9
0.8
SSE
9
0.8
SSE
9
0.7
SE
9
0.7
SE
9
0.7
SE
9
1.4
SW
8
1.1
SE
8
1.2
SSW
7
0.6
ESE
8
0.6
SE
6
0.4
ESE
9
Wave Graph
Metric surfscale
Energy kJ
1710
372
444
1055
2649
1505
2602
1134
309
135
101
106
84
81
81
232
153
164
48
28
32
Wind (km/h)
40
SSW
40
SW
25
SW
85
SSW
30
SSW
20
NE
5
ENE
20
E
15
NNE
5
NNE
5
ESE
0
SE
10
E
10
SE
5
SW
25
S
20
NW
5
SE
25
NE
20
NE
10
ENE
Wind State
on
on
on
cross-on
on
off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
cross-off
cross-off
on
cross-on
cross
glassy
off
off
off
High Tide
3:44PM1.20m
1:19AM1.34m
4:27PM1.26m
2:08AM1.37m
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
Low Tide
8:01PM1.01m
9:00AM0.20m
8:58PM1.01m
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
part cloud
part cloud
heavy rain
mod rain
mod rain
heavy rain
cloud
light rain
rain showers
part cloud
part cloud
clear
rain showers
thunderstorm
heavy rain
heavy rain
mod rain
light rain
light rain
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:28
4:28
4:28
4:28
4:28
4:30
4:30
<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
15
6
8
65
1
2
1
1
30
42
6
5
4
1
Temp °C
25
26
24
25
23
23
22
22
22
23
23
23
24
24
23
23
22
22
22
23
22
Feels °C
23
23
23
14
22
26
24
22
26
26
26
26
25
26
26
23
22
26
21
23
23
Swell 1
Height (m)
Direction
Period (s)
0.4
SE
11
0.4
SE
11
1.1
SW
13
0.3
ESE
16
3.5
SSW
10
2.5
SSW
11
3
SSW
12
2.2
SSW
11
1.3
SW
10
0.9
SW
9
0.8
SSE
9
0.8
SSE
9
0.7
SE
9
0.7
SE
9
0.7
SE
9
1.4
SW
8
1.2
S
7
1.2
SSW
7
0.6
SW
7
0.7
ENE
9
0.5
ENE
8
Energy kJ
43
42
444
51
2649
1505
2602
1134
309
135
101
106
84
81
81
232
139
164
29
65
41
Swell 2
Height (m)
Direction
Period (s)
0.3
ENE
7
0.3
ENE
7
0.4
SE
10
0.2
E
8
0.7
SSW
15
0.2
ESE
16
0.2
ESE
16
0.3
ESE
15
1.1
SSE
8
0.8
SSE
7
0.8
SW
9
0.6
SW
8
0.6
SW
8
0.5
SW
8
0.6
SW
7
0.7
SE
9
1.1
SE
8
0.6
SE
8
0.5
SSE
6
0.5
SW
6
0.4
SW
7
Energy kJ
9
9
37
5
193
25
25
44
142
54
91
54
37
28
41
84
153
57
22
19
15
Swell 3
Height (m)
Direction
Period (s)
0.2
ENE
10
0.2
ESE
18
0.2
ENE
10
0.1
NE
10
0.3
ESE
16
0.1
NE
9
0.2
ESE
16
0.5
NE
6
0.4
ENE
6
0.5
SE
9
0.4
ENE
6
0.4
E
5
0.3
ESE
14
0.3
ESE
14
0.4
ESE
4
0.3
ESE
13
0.9
SW
8
0.4
NE
6
0.6
ESE
8
0.4
ESE
8
0.4
ESE
9
Energy kJ
10
31
10
4
51
3
25
16
12
39
10
7
36
36
5
35
104
10
48
27
32
Wind waves
Height (m)
Direction
Period (s)
2.1
SSW
14
2.2
SW
6
1.2
SSW
6
3
SSW
7
0.3
E
9
0.4
ENE
8
0.4
E
4
0.5
E
4
1.1
S
6
0.9
N
4
0.2
NNW
4
0.6
SE
6
0.5
SSE
4
Energy kJ
1710
372
117
1055
14
26
6
6
83
23
1
28
9
Nearest Offshore or Glassy
Rating
(10 max)
2
3
1
2
3
4
4
2
2
2
1
1
1
1
1
1
2
2
1
2
1
Distance (km)
483
244
61
39
61
0
0
39
12
0
0
0
0
0
12
64
12
0
73
204
40
Best forecast wave conditions in Chiba
Rating
(10 max)
1
4
4
4
2
2
1
1
1
1
1
1
2
2
1
Best forecast wave conditions in Japan
Rating
(10 max)
3
3
4
4
4
4
4
4
3
2
2
1
2
2
2
2
2
2
1
2
1
Header Global
Rating
(10 max)
5
6
7
5
6
5
5
7
5
8
6
8
6
5
5
4
5
5
5
4
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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