Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera Surf Forecast and Surf Report

Issued: 2 pm 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
28.0°C
1.1° 

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


Mera surf forecast from 30 Aug 2026:

  • Best quality surf: Tuesday 1 Sep, 12AM (local time) - 2.5ft (0.7m), 13s period, ESE swell with offshore winds.
  • Most powerful swell: Sunday 6 Sep, 6AM (local time) - 4.5ft (1.3m), 13s period, SSE swell with 596 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 12PM (local time) - 1.5ft (0.4m), 14s 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 12PM. The primary swell is predicted to be 0.4m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 1.3m 13s and forecast to arrive on Sunday (Sep 06) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Sunday (Sep 06) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Mon 31st Aug)1.5ft (0.4m) 14s
Best Surf12AM (Tue 1st Sep)2.5ft (0.7m) 13s
Most Powerful 6AM (Sun 6th Sep)4.5ft (1.3m) 13s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Mon morning, min 24°C on Sun afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 27mm), heaviest during Sat morning. Warm (max 28°C on Thu morning, min 20°C on Sat morning). Winds increasing (light winds from the WNW on Thu night, strong winds from the NE by Sat morning).

Sun
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
1
2
2
2
2
1
0
0
0
0
0
2
1
0
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SW
6
0.4
SE
10
0.4
SW
10
0.5
E
14
0.7
ESE
13
0.9
ESE
12
1
E
12
1.1
E
11
0.9
E
10
0.7
E
10
0.7
E
11
0.7
E
10
0.7
E
10
1.2
SSE
7
1.1
SSE
6
0.7
SW
12
0.6
SW
11
1.8
E
7
0.6
SSE
14
1
SSE
12
Wave Graph
Metric surfscale
Energy kJ
43
28
35
96
173
236
276
295
177
96
112
98
94
116
97
130
73
297
138
299
Wind (km/h)
5
NNW
5
NE
10
NNE
15
ENE
15
NNE
15
NNE
5
ESE
5
ESE
5
S
15
S
20
SSW
15
SSW
25
SSW
20
SW
25
NE
25
NNE
30
NE
35
NE
35
NE
35
NNE
Wind State
glassy
off
off
cross-off
off
off
glassy
glassy
cross-on
cross-on
on
on
cross-on
on
off
off
off
off
off
off
High Tide
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
8:29PM1.38m
Low Tide
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
4:17AM0.40m
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
thunderstorm
cloud
light rain
mod rain
heavy rain
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:13
5:13
5:13
5:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:10
6:08
6:07
6:07
6:05
6:04
6:02
 mm
4
1
8
14
5
3
Temp °C
24
25
26
26
25
26
26
25
26
27
27
28
28
27
24
24
23
22
21
21
Feels °C
28
29
29
29
27
30
30
29
31
29
30
30
29
29
25
23
22
20
17
17
  • 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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