Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera Surf Forecast and Surf Report

Issued: 8 pm 27 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 27 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 12AM (local time) - 2.5ft (0.7m), 12s period, E swell with cross-offshore winds.
  • Most powerful swell: Thursday 3 Sep, 6AM (local time) - 5ft (1.6m), 12s period, SSW swell with 794 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 12AM (local time) - 2.5ft (0.7m), 12s period with E 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 Saturday (Aug 29) at 12AM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 1.1m and 6s. Another secondary swell of 1.3m and 6s is also forecast. 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 1.6m 12s and forecast to arrive on Thursday (Sep 03) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Saturday (Aug 29) at 12PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 29th Aug)2.5ft (0.7m) 12s
Best Surf12AM (Sat 29th Aug)2.5ft (0.7m) 12s
Most Powerful 6AM (Thu 3rd Sep)5ft (1.6m) 12s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Fri morning. Warm (max 27°C on Thu night, min 23°C on Sat night). Winds decreasing (fresh winds from the SW on Fri morning, calm by Sun afternoon).

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Tue night. Warm (max 28°C on Mon afternoon, min 25°C on Sun night). Wind will be generally light.

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
2
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
E
13
1.5
SW
6
0.7
E
12
0.7
E
12
0.6
E
12
0.6
E
11
0.4
SE
10
0.4
SE
10
0.4
SW
9
0.4
SE
10
0.4
SSW
11
0.7
SSW
10
0.9
SSW
10
1
SSW
11
1
E
11
1.1
SSW
10
1.3
SSW
10
1.3
SSW
10
1.5
S
11
Wave Graph
Metric surfscale
Energy kJ
215
150
138
137
95
94
28
26
30
28
40
108
191
245
240
255
385
370
535
Wind (km/h)
10
WSW
35
SW
20
WSW
15
NNE
15
NE
20
ENE
15
NNE
10
NNE
5
NW
5
WSW
15
SW
20
SSW
15
SSW
10
S
15
SSE
15
S
25
SSW
30
SSW
30
SW
Wind State
on
on
on
cross-off
off
cross-off
cross-off
cross-off
glassy
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
4:01AM1.53m
5:23PM1.49m
4:39AM1.56m
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
Low Tide
10:28PM0.77m
10:45AM0.18m
10:57PM0.67m
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
thunderstorm
thunderstorm
part cloud
rain showers
cloud
cloud
light rain
part cloud
part cloud
clear
clear
clear
clear
clear
clear
rain showers
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:09
5:11
5:11
5:11
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:13
6:12
6:10
6:08
6:07
6:07
 mm
1
2
1
2
4
1
Temp °C
27
27
27
27
26
26
25
24
25
26
27
28
27
28
28
27
27
27
27
Feels °C
31
26
28
31
27
27
27
27
29
29
30
30
30
32
31
31
27
27
28
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Mera:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mera surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest