Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 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: Thursday 2 Jul, 9PM (local time) - 8ft (2.4m), 8s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 7 Jul, 9PM (local time) - 7ft (2.2m), 15s period, SE swell with 1,983 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 2.2m 15s and forecast to arrive on Tuesday (Jul 07) at 9PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 8s period and expected on Friday (Jul 03) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Wed 1st Jul)3ft (0.9m) 7s
Best Surf 9PM (Thu 2nd Jul)8ft (2.4m) 8s
Most Powerful 9PM (Tue 7th Jul)7ft (2.2m) 15s

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 25°C on Thu morning, min 20°C on Thu night). Winds increasing (calm on Tue night, strong winds from the SW by Thu morning).

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Warm (max 23°C on Sat afternoon, min 20°C on Fri night). Wind will be generally light.

Tue
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
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
0
1
0
0
0
0
2
2
1
0
0
0
0
0
0
0
0
1
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
SE
9
1
SSW
7
0.8
SSW
7
0.6
ESE
9
0.6
ESE
9
1.2
SW
5
3
SW
7
1.8
SW
8
1.3
SW
8
0.8
SW
7
0.6
SW
7
0.4
SW
7
0.3
SE
11
0.3
SE
10
0.7
E
8
0.3
ESE
10
0.3
ESE
11
1.2
S
5
0.7
SE
12
0.8
SE
14
1.1
SSE
17
Wave Graph
Metric surfscale
Energy kJ
99
93
67
54
53
63
844
408
196
65
42
16
19
15
71
20
22
68
144
241
725
Wind (km/h)
10
NNE
10
WSW
5
ESE
5
SSE
25
WSW
45
SSW
50
SW
15
NE
25
NNE
15
NNE
10
ENE
10
ESE
15
SSE
10
SSE
15
SSE
20
SSE
15
SE
15
ESE
15
E
15
SE
15
SSE
Wind State
cross-off
cross-on
cross-off
cross-on
on
on
on
off
off
off
cross-off
cross-off
cross-on
cross-on
cross
cross
cross
cross-off
cross-off
cross
cross
High Tide
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
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
part cloud
clear
part cloud
cloud
light rain
rain showers
thunderstorm
cloud
cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
<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
2
3
1
1
1
1
4
3
Temp °C
24
24
24
24
24
25
25
22
22
22
21
22
23
23
23
23
23
22
21
22
23
Feels °C
27
26
27
27
25
22
20
23
21
22
21
23
23
24
23
22
24
21
20
23
24
Swell 1
Height (m)
Direction
Period (s)
0.8
SE
9
1
SSW
7
0.8
SSW
7
0.7
SSW
6
0.6
ESE
9
0.5
ESE
9
0.4
ESE
9
1.8
SW
8
1.3
SW
8
0.8
SW
7
0.8
ENE
8
0.8
ENE
8
0.7
ENE
8
0.7
ENE
8
0.7
E
8
0.5
ENE
8
0.5
E
8
0.4
SE
11
0.7
SE
12
0.8
ESE
11
1.2
SE
13
Energy kJ
99
93
61
37
53
42
29
408
196
65
75
80
73
75
71
39
33
43
144
149
473
Swell 2
Height (m)
Direction
Period (s)
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
0.4
ESE
9
0.4
ESE
9
0.5
S
6
0.6
SW
7
0.4
SW
7
0.4
SW
6
0.3
SW
6
0.2
SSE
10
0.3
ESE
10
0.3
ESE
11
0.4
ENE
8
0.4
SE
15
0.8
SE
14
1.1
SSE
17
Energy kJ
34
67
67
54
19
32
15
31
32
18
42
16
15
6
9
20
22
20
56
241
725
Swell 3
Height (m)
Direction
Period (s)
0.3
ESE
14
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
0.3
S
6
0.2
ESE
9
0.3
SE
11
0.3
SE
10
0.2
WSW
6
0.2
ESE
8
0.3
SE
8
0.4
ESE
11
0.3
ENE
8
0.6
SE
6
Energy kJ
36
35
35
34
33
11
4
14
14
16
5
8
19
15
3
6
11
39
12
20
Wind waves
Height (m)
Direction
Period (s)
0.3
ENE
3
0.4
SW
4
1.2
SW
5
3
SW
7
0.5
NE
3
0.6
NE
7
0.3
S
3
0.5
S
3
0.6
S
4
0.7
S
4
1.2
S
5
1.3
S
5
1.1
SW
5
1.3
SW
6
Energy kJ
1
3
63
844
6
42
1
6
10
14
68
95
64
101
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
2
2
2
1
1
1
1
1
1
1
1
1
1
2
2
Distance (km)
0
12
0
12
70
504
36
0
0
0
40
56
64
64
64
64
64
64
14
36
39
Best forecast wave conditions in Chiba
Rating
(10 max)
1
1
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
2
3
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
1
1
1
2
3
3
2
1
1
1
1
1
1
1
1
1
1
2
4
Header Global
Rating
(10 max)
5
5
5
5
5
8
7
5
9
5
7
5
7
6
5
9
9
9
6
7
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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