Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 pm 29 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.9° 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 29 Jun 2026:

  • Best quality surf: Saturday 4 Jul, 12AM (local time) - 6.5ft (2.0m), 7s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Monday 6 Jul, 6PM (local time) - 3.5ft (1.1m), 12s period, SE swell with 392 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 30 Jun, 3AM (local time) - 2.5ft (0.7m), 9s period with SE 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 30) at 3AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.7m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 1.1m 12s and forecast to arrive on Monday (Jul 06) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Saturday (Jul 04) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 30th Jun)2.5ft (0.7m) 9s
Best Surf12AM (Sat 4th Jul)6.5ft (2.0m) 7s
Most Powerful 6PM (Mon 6th Jul)3.5ft (1.1m) 12s

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 6mm), mostly falling on Thu morning. Warm (max 24°C on Wed afternoon, min 22°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Thu afternoon. Warm (max 24°C on Fri afternoon, min 22°C on Thu afternoon). Winds decreasing (fresh winds from the SW on Thu night, light winds from the SSW by Fri afternoon).

Mon
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
1
1
0
1
1
0
0
0
0
0
1
0
3
0
0
0
0
0
1
2
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)
0.8
SSE
9
0.8
SW
8
0.6
SE
9
0.7
SE
9
0.9
SW
7
0.9
SW
7
0.6
ESE
9
0.6
ESE
9
0.5
ESE
9
0.4
ESE
8
1.5
SSW
5
1.1
SW
7
1.8
SW
7
2
WSW
7
0.9
SW
6
0.5
SW
6
0.4
SE
10
0.5
ESE
10
0.5
E
10
0.5
E
10
0.8
ESE
13
Wave Graph
Metric surfscale
Energy kJ
103
90
68
81
67
75
54
53
42
28
116
118
365
352
56
18
27
56
51
56
219
Wind (km/h)
5
S
5
WSW
0
SE
5
SSE
5
NNE
5
NE
5
SSW
10
SSW
5
S
20
S
35
SSW
5
NW
10
SW
15
ENE
15
E
15
SSE
10
SE
20
ENE
15
ENE
15
NE
15
NE
Wind State
cross-on
on
glassy
cross-on
cross-off
glassy
cross-on
cross-on
cross-on
cross-on
on
cross-off
on
cross-off
cross-off
cross
cross
cross-off
off
off
off
High Tide
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
6:47AM1.34m
8:30PM1.34m
7:38AM1.27m
Low Tide
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
1:40PM0.25m
2:11AM0.75m
clear
clear
part cloud
thunderstorm
clear
part cloud
cloud
light rain
light rain
light rain
rain showers
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:28
4:30
4:30
4:31
4:31
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
6:57
 mm
1
1
4
1
1
Temp °C
23
23
23
23
23
23
24
23
22
23
23
23
24
24
24
24
23
22
22
21
22
Feels °C
26
26
27
26
27
26
27
25
24
21
21
25
25
26
25
24
24
21
23
20
23
Swell 1
Height (m)
Direction
Period (s)
0.8
SW
8
0.8
SW
8
0.6
SE
9
0.7
SE
9
0.9
SW
7
0.9
SW
7
0.7
SW
7
0.6
ESE
9
0.5
ESE
9
0.4
ESE
8
0.4
ESE
9
0.6
SSE
5
0.4
ESE
9
1.5
SW
7
0.9
SW
6
0.5
SW
6
0.4
SW
6
0.5
ESE
10
0.4
SW
6
0.5
E
10
0.8
ESE
13
Energy kJ
78
69
68
81
67
75
46
53
42
28
26
19
26
206
56
18
13
56
12
56
219
Swell 2
Height (m)
Direction
Period (s)
0.8
SSE
9
0.7
SE
9
0.6
SW
8
0.6
SW
7
0.6
SE
9
0.6
SE
9
0.6
ESE
9
0.5
SW
6
0.3
ESE
13
0.2
ESE
12
0.2
ESE
12
0.4
ESE
9
0.2
ESE
12
0.3
ESE
9
0.3
E
9
0.3
SSE
5
0.4
SE
10
0.4
SW
6
0.5
E
10
0.4
SW
6
0.3
SW
6
Energy kJ
103
90
37
34
67
67
54
18
32
15
14
27
14
16
14
5
27
11
51
11
5
Swell 3
Height (m)
Direction
Period (s)
0.3
ESE
15
0.3
ESE
14
0.3
ESE
14
0.3
ESE
14
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
0.3
SSE
5
0.2
ENE
10
0.2
E
8
0.2
SSE
8
0.2
ESE
12
0.1
SE
9
0.2
ESE
12
0.2
ESE
12
0.3
ESE
9
0.3
ESE
8
0.2
S
4
0.2
SSE
9
0.3
SE
13
0.1
SE
9
Energy kJ
42
41
36
36
35
35
34
5
11
5
7
14
3
14
13
15
13
2
8
27
3
Wind waves
Height (m)
Direction
Period (s)
0.4
SW
3
0.6
SSW
6
0.8
SW
4
1.5
SSW
5
1.1
SW
7
1.8
SW
7
2
WSW
7
0.6
ENE
3
0.6
E
4
0.2
ENE
3
Energy kJ
2
22
19
116
118
365
352
8
13
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
2
3
1
1
1
1
1
1
2
Distance (km)
33
12
0
12
0
0
12
33
64
64
63
0
12
0
36
64
153
544
2050
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
2
3
1
1
1
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
2
1
2
2
1
1
1
1
1
2
2
2
3
1
1
1
1
1
2
Header Global
Rating
(10 max)
7
5
5
5
5
5
5
4
9
5
5
5
6
6
6
6
6
6
8
9
9
  • 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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