Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera Surf Forecast and Surf Report

Issued: 8 am 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
27.8°C
0.9° 

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


Mera surf forecast from 29 Aug 2026:

  • Best quality surf: Tuesday 1 Sep, 3AM (local time) - 2.5ft (0.8m), 12s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 1 Sep, 12PM (local time) - 3.5ft (1.0m), 12s period, E swell with 289 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 9PM (local time) - 2ft (0.6m), 13s period with ESE 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 Monday (Aug 31) at 9PM. The primary swell is predicted to be 0.6m and 13s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 1.0m 12s and forecast to arrive on Tuesday (Sep 01) at 12PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Saturday (Sep 05) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 31st Aug)2ft (0.6m) 13s
Best Surf 3AM (Tue 1st Sep)2.5ft (0.8m) 12s
Most Powerful12PM (Tue 1st Sep)3.5ft (1.0m) 12s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sat morning. Warm (max 26°C on Sat afternoon, min 21°C on Sat night). Winds decreasing (fresh winds from the N on Sat afternoon, calm by Sun afternoon).

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Wed night. Warm (max 28°C on Thu afternoon, min 25°C on Tue morning). Wind will be generally light.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
AM
PM
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
0
0
0
0
0
1
2
0
1
1
0
0
0
0
0
2
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
E
12
0.6
E
11
0.7
SW
6
0.6
SW
6
0.4
SW
6
0.4
SE
10
0.4
SE
9
0.5
E
14
0.7
ESE
13
0.9
ESE
12
1
E
12
1
E
11
0.8
E
10
0.7
E
10
1.3
SE
6
1.1
SE
6
0.8
E
11
1.1
SE
7
0.6
SW
12
0.9
SSW
11
0.7
SW
11
Wave Graph
Metric surfscale
Energy kJ
98
94
36
22
13
28
31
96
173
240
276
235
133
98
136
108
149
121
120
197
121
Wind (km/h)
10
W
15
W
25
N
10
NNE
5
NW
5
N
15
NNE
20
N
15
N
5
N
10
S
5
SW
5
SE
10
SSE
20
SSW
10
SSW
15
SSW
15
SW
25
NE
30
ENE
30
NE
Wind State
cross-on
cross-on
cross-off
off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
on
cross
cross-on
cross-on
cross-on
on
on
off
off
off
High Tide
5:42PM1.51m
5:18AM1.56m
6:00PM1.53m
5:58AM1.53m
6:19PM1.53m
6:42AM1.47m
6:38PM1.53m
7:32AM1.37m
6:58PM1.52m
8:33AM1.25m
7:21PM1.50m
10:10AM1.14m
7:49PM1.45m
Low Tide
11:14AM0.23m
11:27PM0.57m
11:42AM0.31m
11:59PM0.48m
12:10PM0.44m
00:34AM0.40m
12:38PM0.59m
1:12AM0.36m
1:04PM0.75m
1:57AM0.35m
1:29PM0.91m
2:55AM0.37m
1:46PM1.05m
thunderstorm
thunderstorm
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
cloud
cloud
cloud
cloud
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:11
5:11
5:11
5:13
5:13
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:10
6:08
6:07
6:07
6:05
6:04
 mm
1
1
4
2
17
Temp °C
25
26
22
24
25
25
24
26
25
25
27
26
27
27
27
27
28
27
26
25
23
Feels °C
29
29
20
26
29
29
26
28
28
29
31
30
31
30
31
30
31
29
25
23
21
  • 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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