Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 8 pm 01 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.7° 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 1 Jul 2026:

  • Best quality surf: Tuesday 7 Jul, 3PM (local time) - 8ft (2.5m), 16s period, SSE swell with glassy winds.
  • Most powerful swell: Wednesday 8 Jul, 6AM (local time) - 10ft (3.0m), 16s period, SSE swell with 3,951 kJ wave energy.
  • Next surfable swell (1★+): Thursday 2 Jul, 9PM (local time) - 5ft (1.6m), 8s period with SW 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 Thursday (Jul 02) at 9PM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.4m and 9s. 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 16s and forecast to arrive on Wednesday (Jul 08) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 7s period and expected on Friday (Jul 03) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 2nd Jul)5ft (1.6m) 8s
Best Surf 3PM (Tue 7th Jul)8ft (2.5m) 16s
Most Powerful 6AM (Wed 8th Jul)10ft (3.0m) 16s

Table - best surf conditions forecast for Mera over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 16mm), heaviest on Wed night. Warm (max 25°C on Thu morning, min 20°C on Thu night). Winds decreasing (near gales from the SW on Thu morning, light winds from the NNE by Fri afternoon).

Days 5-7 Weather Summary

Heavy rain (total 31mm), heaviest during Mon morning. Warm (max 24°C on Sun morning, min 22°C on Sat night). Winds decreasing (fresh winds from the SE on Mon morning, calm by Tue afternoon).

Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wed
8
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
0
1
2
1
1
0
0
0
0
0
0
0
0
0
3
3
5
4
4
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)
0.6
ESE
9
1.9
SW
6
2.3
SW
7
1.4
SW
8
1
SW
8
0.8
SW
7
0.6
WSW
7
0.4
SW
7
0.4
SE
11
0.3
SE
10
0.4
ESE
10
0.4
ESE
10
0.4
SE
16
0.9
SE
15
1.3
SE
14
1.5
SE
14
2.2
SE
16
2.5
SSE
16
3
SSE
16
2.5
SSE
16
2.3
SSE
14
Wave Graph
Metric surfscale
Energy kJ
53
266
569
210
110
65
37
17
31
15
41
35
66
355
650
899
2438
3360
3887
3062
2093
Wind (km/h)
20
SW
50
SW
20
NW
15
NNE
10
NE
5
NNE
10
E
10
SE
15
S
10
SSE
15
SE
20
SE
20
SE
30
SE
30
SSE
5
SSW
20
N
5
ESE
15
SE
10
SSE
15
SSE
Wind State
on
on
cross
off
off
off
cross-off
cross
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-off
glassy
cross
cross-on
cross-on
High Tide
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
9:26PM1.34m
10:08AM1.11m
Low Tide
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
4:07AM0.59m
3:36PM0.74m
mod rain
light rain
light rain
cloud
cloud
cloud
part cloud
light rain
light rain
part cloud
part cloud
part cloud
light rain
heavy rain
heavy rain
rain showers
part cloud
rain showers
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:30
4:31
4:31
4:31
4:31
4:33
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
6:57
6:57
6:57
 mm
7
2
4
1
2
1
14
11
4
1
Temp °C
24
25
22
21
21
22
22
23
22
23
24
24
23
22
23
23
23
24
24
24
25
Feels °C
21
20
22
20
23
24
23
25
23
25
24
24
23
20
22
24
25
28
26
27
26
Swell 1
Height (m)
Direction
Period (s)
0.6
ESE
9
0.5
ESE
9
0.4
ESE
9
1.4
SW
8
1
SW
8
0.8
SW
7
0.6
ENE
8
0.6
ENE
8
0.5
ENE
8
0.5
E
8
0.4
ENE
8
0.4
ESE
10
0.4
ESE
11
0.9
SE
15
1.3
SE
14
1.5
SE
14
2.2
SE
16
2.5
SSE
16
3
SSE
16
2.5
SSE
16
2.3
SSE
14
Energy kJ
53
42
29
210
110
65
47
51
35
33
19
35
44
355
650
899
2438
3360
3887
3062
2093
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
6
0.3
ESE
13
0.2
ESE
12
0.4
ESE
9
0.3
ESE
9
0.4
SSE
6
0.6
WSW
7
0.4
SW
7
0.4
SW
7
0.3
SW
6
0.4
ESE
10
0.4
ENE
8
0.4
SE
16
0.4
SE
9
0.1
SW
6
0.8
SSE
19
0.9
SSE
20
1.1
S
18
1.4
S
17
Energy kJ
14
32
15
27
16
10
37
17
16
6
41
19
66
19
1
470
713
801
1081
Swell 3
Height (m)
Direction
Period (s)
0.3
ESE
13
0.1
NE
10
0.1
NE
10
0.2
ESE
12
0.2
ESE
12
0.3
ESE
9
0.3
S
5
0.3
SE
9
0.4
SE
11
0.3
SE
10
0.2
WSW
6
0.2
SSE
9
0.3
ENE
8
0.1
SW
6
0.1
S
7
0.2
WSW
6
0.4
E
9
0.4
E
10
Energy kJ
33
4
4
14
14
16
5
13
31
15
3
8
11
1
1
3
27
30
Wind waves
Height (m)
Direction
Period (s)
0.4
SSW
4
1.9
SW
6
2.3
SW
7
0.4
NE
3
0.6
ENE
6
0.6
ENE
7
0.3
SSE
3
0.4
S
4
0.4
SSE
4
0.5
SE
4
0.7
SE
5
0.9
SE
5
1
SE
5
1.3
SSE
5
1
SSE
5
Energy kJ
5
266
569
2
25
29
1
4
5
7
22
45
57
87
50
Nearest Offshore or Glassy
Rating
(10 max)
1
1
3
2
1
1
1
1
1
1
1
1
1
1
2
2
4
5
4
4
4
Distance (km)
64
55
12
0
0
0
35
64
64
64
70
821
767
148
87
14
12
0
43
47
47
Best forecast wave conditions in Chiba
Rating
(10 max)
1
3
2
1
1
1
1
1
1
1
2
4
5
5
5
4
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
3
2
1
1
1
1
1
1
1
1
1
2
2
3
4
5
5
5
4
Header Global
Rating
(10 max)
5
9
7
5
7
6
6
5
4
5
5
9
7
5
5
9
9
7
7
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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