Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 8 pm 30 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
24.0° 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 30 Jun 2026:

  • Best quality surf: Tuesday 7 Jul, 3AM (local time) - 7.5ft (2.3m), 17s period, SE swell with offshore winds.
  • Most powerful swell: Tuesday 7 Jul, 6AM (local time) - 8ft (2.5m), 16s period, SE swell with 3,385 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 1 Jul, 3AM (local time) - 3ft (0.9m), 7s 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 Wednesday (Jul 01) at 3AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.6m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 2.5m 16s and forecast to arrive on Tuesday (Jul 07) at 6AM. 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 6s period and expected on Monday (Jul 06) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 1st Jul)3ft (0.9m) 7s
Best Surf 3AM (Tue 7th Jul)7.5ft (2.3m) 17s
Most Powerful 6AM (Tue 7th Jul)8ft (2.5m) 16s

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 20mm), heaviest during Thu morning. Warm (max 24°C on Wed morning, min 20°C on Thu night). Winds increasing (calm on Tue night, strong winds from the SSW by Thu morning).

Days 5-7 Weather Summary

Moderate rain (total 16mm), heaviest on Sun afternoon. Warm (max 23°C on Sat morning, min 21°C on Fri night). Wind will be generally light.

Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tue
7
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
1
0
0
0
0
2
1
1
0
0
0
0
0
0
0
2
3
3
5
5
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
SSW
7
0.7
SE
9
0.6
ESE
9
0.6
ESE
9
1.5
SW
5
2.5
SW
8
1.6
SW
8
1
SW
8
0.8
SW
7
0.5
SW
7
0.3
SE
10
0.3
SE
11
0.6
E
8
0.7
E
8
0.6
E
8
0.2
SSE
15
2.4
ESE
7
2.3
SE
7
1.3
SSE
18
2.5
SSE
16
2.5
SSE
15
Wave Graph
Metric surfscale
Energy kJ
91
84
54
53
124
750
322
113
64
23
15
20
51
66
47
21
500
471
1156
2986
3038
Wind (km/h)
10
WSW
5
E
5
S
20
SW
45
SSW
15
W
25
NNE
20
NNE
10
E
5
ESE
10
SSE
20
S
20
S
20
SSE
20
SE
25
ESE
25
E
25
E
20
E
15
ENE
10
E
Wind State
on
glassy
cross-on
on
on
cross-on
off
off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
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
8:57PM1.33m
8:41AM1.18m
Low Tide
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
2:15PM0.39m
3:04AM0.68m
2:52PM0.56m
clear
part cloud
cloud
mod rain
rain showers
rain showers
cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
cloud
mod rain
rain showers
cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:30
4:30
4:31
4:31
4:31
4:31
4:33
<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
6:57
6:57
 mm
6
10
4
10
6
Temp °C
23
24
24
24
24
22
21
22
22
22
23
23
23
23
22
21
22
22
22
23
23
Feels °C
26
27
27
25
20
23
21
21
22
23
23
22
23
23
22
20
20
20
22
24
24
Swell 1
Height (m)
Direction
Period (s)
1
SSW
7
0.8
SSW
7
0.6
SW
7
0.6
SW
7
0.5
ESE
9
0.4
ESE
9
1.6
SW
8
1
SW
8
1
ENE
8
0.9
ENE
9
0.8
ENE
8
0.7
ENE
8
0.6
E
8
0.7
E
8
0.6
E
8
0.2
SSE
15
0.5
SE
14
0.7
SSE
21
1.3
SSE
18
2.5
SSE
16
2.5
SSE
15
Energy kJ
91
61
35
35
42
30
322
113
140
123
94
72
51
66
47
21
103
382
1156
2986
3038
Swell 2
Height (m)
Direction
Period (s)
0.6
SE
9
0.7
SE
9
0.6
ESE
9
0.6
ESE
9
0.3
ESE
13
0.2
ESE
12
0.4
ESE
9
0.3
ESE
9
0.8
SW
7
0.5
SW
7
0.4
SW
7
0.3
SE
11
0.3
SE
10
0.1
SE
10
0.2
SSE
9
0.1
S
12
0.4
SW
7
0.6
SE
15
1.2
SE
15
1
SE
6
1.6
SSE
17
Energy kJ
67
84
54
53
32
15
31
16
64
23
15
20
17
4
8
3
11
181
693
61
1351
Swell 3
Height (m)
Direction
Period (s)
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
0.3
ESE
13
0.2
ENE
10
0.1
NE
10
0.2
ESE
12
0.2
ESE
12
0.3
ESE
9
0.2
ESE
12
0.3
SE
10
0.1
NE
10
0.1
SW
6
0.1
SE
8
0.2
SSE
20
0.4
SE
18
0.9
SE
12
Energy kJ
35
35
34
33
11
4
14
14
16
14
14
4
1
3
38
80
224
Wind waves
Height (m)
Direction
Period (s)
1.5
SW
5
2.5
SW
8
0.5
NE
3
0.9
NE
8
1.3
ENE
8
0.4
SSW
6
0.6
SSW
4
0.6
S
4
0.8
S
4
1.5
SE
5
2.4
ESE
7
2.3
SE
7
1.6
SE
6
1.1
SSE
6
0.9
S
5
Energy kJ
124
750
5
94
224
16
10
9
21
113
500
471
200
74
40
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
3
2
1
1
2
1
1
1
1
1
1
2
2
3
5
5
Distance (km)
12
0
12
64
55
14
0
0
0
35
64
64
64
64
64
39
39
47
14
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
1
1
3
2
1
1
2
1
1
1
1
1
2
3
3
5
5
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
1
2
2
3
2
1
1
2
1
1
1
1
1
1
2
2
4
5
5
Header Global
Rating
(10 max)
5
5
5
5
8
7
5
8
5
9
5
4
5
6
9
9
9
7
6
8
7
  • 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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