Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 pm 06 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
24.2° 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 6 Jul 2026:

  • Best quality surf: Tuesday 7 Jul, 9AM (local time) - 3.5ft (1.1m), 16s period, SSE swell with offshore winds.
  • Most powerful swell: Saturday 11 Jul, 9AM (local time) - 10ft (3.0m), 17s period, SSW swell with 5,593 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 12AM (local time) - 3.5ft (1.0m), 12s 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 (Jul 07) at 12AM. The primary swell is predicted to be 1.0m and 12s period with a secondary swell of 1.0m and 7s. 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 17s and forecast to arrive on Saturday (Jul 11) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Jul 07) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 7th Jul)3.5ft (1.0m) 12s
Best Surf 9AM (Tue 7th Jul)3.5ft (1.1m) 16s
Most Powerful 9AM (Sat 11th Jul)10ft (3.0m) 17s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 24°C on Mon afternoon, min 22°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 24°C on Thu afternoon, min 23°C on Thu night). Wind will be generally light.

Mon
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
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
3
4
4
4
4
4
3
3
3
3
2
3
3
4
2
2
1
1
0
0
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)
0.9
SE
13
1
SE
12
1.1
SSE
16
1.4
SSE
14
1.8
SSE
16
2.2
SSE
16
2
SSE
15
2.2
SSE
14
2.1
S
14
1.6
SSE
13
2.1
S
14
2.2
S
16
2.5
SSW
16
3
SSW
18
3
SSW
17
3
SSW
17
2.5
SSW
16
2.4
SW
16
2.2
SW
15
1.6
SW
14
1.4
SW
13
Wave Graph
Metric surfscale
Energy kJ
286
272
589
834
1547
2329
1833
1913
1832
901
1818
2413
2942
5092
5593
4883
3639
2881
2233
1064
585
Wind (km/h)
20
ESE
20
ENE
20
NE
15
E
15
ENE
10
NE
10
ESE
10
SSE
10
SE
15
SE
10
SSE
10
S
20
SSE
15
SSW
15
S
20
SSW
20
SSW
20
SSW
20
S
20
SSW
15
SSW
Wind State
cross-off
off
off
cross-off
cross-off
off
cross-off
cross
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
High Tide
8:57PM1.33m
8:41AM1.18m
9:26PM1.34m
10:08AM1.11m
10:01PM1.34m
12:08PM1.09m
10:47PM1.35m
2:11PM1.17m
11:46PM1.37m
3:34PM1.28m
00:56AM1.41m
4:28PM1.38m
2:03AM1.47m
Low Tide
3:04AM0.68m
2:52PM0.56m
4:07AM0.59m
3:36PM0.74m
5:22AM0.49m
4:35PM0.92m
6:39AM0.35m
6:07PM1.06m
7:47AM0.20m
7:50PM1.12m
8:47AM0.06m
9:03PM1.11m
9:40AM-0.05m
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:33
4:33
4:33
4:33
4:35
4:35
4:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:57
6:57
6:57
6:55
6:55
6:55
6:54
 mm
Temp °C
24
23
24
24
23
23
24
24
24
24
24
24
24
23
23
24
23
24
24
24
24
Feels °C
23
23
24
24
23
24
25
25
25
24
26
26
24
23
24
24
24
25
24
24
25
Swell 1
Height (m)
Direction
Period (s)
0.9
SE
13
1
ESE
7
1.4
ESE
11
1.4
SSE
14
1.8
SSE
16
2.2
SSE
16
2
SSE
15
2.2
SSE
14
2.1
S
14
1.6
SSE
13
2.1
S
14
2.2
S
16
2.5
SSW
16
3
SSW
18
3
SSW
17
3
SSW
17
2.5
SSW
16
2.4
SW
16
2.2
SW
15
1.6
SW
14
1.4
SW
13
Energy kJ
286
88
492
834
1547
2329
1833
1913
1832
901
1818
2413
2942
5092
5593
4883
3639
2881
2233
1064
585
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
7
1
SE
12
1.1
SSE
16
0.8
SE
10
1.1
ESE
8
1.1
ESE
8
1.1
ESE
8
1
E
8
0.9
ESE
8
1.3
S
15
0.9
ESE
8
0.8
ESE
8
0.7
E
10
0.7
ESE
10
0.7
E
9
0.6
E
9
0.7
ESE
9
0.7
E
9
0.7
ESE
9
0.9
ESE
9
0.8
ESE
9
Energy kJ
11
272
589
153
171
171
171
137
107
770
112
85
92
94
81
59
84
79
82
119
90
Swell 3
Height (m)
Direction
Period (s)
0.3
ENE
8
0.7
SSE
16
0.3
SW
6
0.2
WSW
6
0.8
S
18
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
0.3
SE
10
0.3
SE
10
Energy kJ
13
212
6
4
422
107
109
109
15
16
Wind waves
Height (m)
Direction
Period (s)
1.2
ESE
7
1.3
ESE
10
Energy kJ
123
365
Nearest Offshore or Glassy
Rating
(10 max)
1
3
4
4
4
4
4
3
4
3
4
4
4
5
4
4
4
4
3
1
2
Distance (km)
47
0
0
0
0
0
0
47
36
47
47
36
64
64
64
64
64
64
64
73
64
Best forecast wave conditions in Chiba
Rating
(10 max)
3
4
4
4
4
4
4
4
4
4
4
4
5
4
4
4
4
3
3
2
Best forecast wave conditions in Japan
Rating
(10 max)
2
3
4
4
4
4
4
5
4
3
5
4
4
8
4
9
5
4
4
4
3
Header Global
Rating
(10 max)
7
8
7
5
5
9
8
9
8
7
5
6
5
8
5
5
5
5
5
9
8
  • 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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