Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera Surf Forecast and Surf Report

Issued: 8 pm 29 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
26.6° C
0.2° 

Mera surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Mera surf forecast from 29 Jul 2026:

  • Best quality surf: Tuesday 4 Aug, 6AM (local time) - 13ft (4.0m), 17s period, SE swell with offshore winds.
  • Most powerful swell: Wednesday 5 Aug, 12PM (local time) - 16ft (5.0m), 17s period, SSE swell with 13,319 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 9PM (local time) - 3ft (0.9m), 6s 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 30) at 9PM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.4m and 10s. Another secondary swell of 0.3m and 9s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 5.0m 17s and forecast to arrive on Wednesday (Aug 05) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Tuesday (Aug 04) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 30th Jul)3ft (0.9m) 6s
Best Surf 6AM (Tue 4th Aug)13ft (4.0m) 17s
Most Powerful12PM (Wed 5th Aug)16ft (5.0m) 17s

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


Short Range Forecast

Mostly dry. Warm (max 29°C on Fri afternoon, min 26°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Sun night. Warm (max 29°C on Sun afternoon, min 23°C on Mon night). Winds increasing (calm on Sun morning, fresh winds from the ENE by Mon afternoon).

Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
2
1
0
0
0
1
2
3
3
4
5
6
7
9
8
9
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
6
0.7
SW
6
0.8
SW
6
1.3
SW
6
0.9
SSW
6
0.7
SSW
6
0.3
E
11
0.3
ESE
11
0.5
SE
16
0.8
ESE
15
1.4
ESE
16
1.7
ESE
16
2.1
ESE
16
2.5
ESE
17
3
ESE
17
3.5
SE
17
4
SE
17
4.5
SE
17
4.5
SE
16
Wave Graph
Metric surfscale
Energy kJ
94
40
47
120
60
31
20
23
125
279
921
1397
2234
4255
6043
6412
9185
12138
11249
Wind (km/h)
0
WNW
5
S
15
SW
5
NW
10
NNE
10
SE
10
ENE
10
ENE
10
ESE
5
E
5
NNE
10
SE
20
NE
25
NE
20
ENE
20
NE
20
NE
20
E
20
NE
Wind State
glassy
cross-on
on
glassy
off
cross
off
off
cross-off
cross-off
off
cross
off
off
cross-off
off
off
cross-off
off
High Tide
4:08AM1.48m
6:08PM1.44m
4:45AM1.51m
6:31PM1.45m
5:23AM1.51m
6:53PM1.46m
6:02AM1.48m
7:13PM1.45m
6:45AM1.42m
7:33PM1.45m
7:34AM1.34m
7:55PM1.45m
Low Tide
10:50PM0.89m
11:11AM0.09m
11:22PM0.83m
11:41AM0.10m
11:54PM0.77m
12:11PM0.16m
00:27AM0.70m
12:40PM0.26m
1:02AM0.63m
1:09PM0.39m
1:41AM0.57m
1:38PM0.56m
2:28AM0.52m
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
thunderstorm
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:48
4:48
4:50
4:50
4:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:45
6:44
6:43
6:42
6:40
 mm
3
Temp °C
28
28
28
28
28
29
27
28
28
27
28
29
28
26
26
24
26
27
26
Feels °C
32
32
30
33
31
32
32
33
32
31
33
32
32
27
27
23
27
28
28
  • 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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