Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera Surf Forecast and Surf Report

Issued: 8 am 26 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 26 Aug 2026:

  • Best quality surf: Thursday 27 Aug, 6PM (local time) - 2.5ft (0.8m), 13s period, E swell with offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 12PM (local time) - 8ft (2.4m), 16s period, SSW swell with 2,610 kJ wave energy.
  • Next surfable swell (1★+): Thursday 27 Aug, 6PM (local time) - 2.5ft (0.8m), 13s 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 Thursday (Aug 27) at 6PM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.9m and 6s. Another secondary swell of 1.1m and 6s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 2.4m 16s and forecast to arrive on Wednesday (Sep 02) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Saturday (Aug 29) at 3PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Thu 27th Aug)2.5ft (0.8m) 13s
Best Surf 6PM (Thu 27th Aug)2.5ft (0.8m) 13s
Most Powerful12PM (Wed 2nd Sep)8ft (2.4m) 16s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Wed night. Warm (max 28°C on Wed morning, min 24°C on Thu afternoon). Winds decreasing (fresh winds from the SW on Wed afternoon, light winds from the NNW by Fri night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Sat morning, min 23°C on Sun night). Wind will be generally light.

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
AM
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
0
1
0
0
0
2
1
0
1
0
0
0
1
1
1
1
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)
1
SSW
11
1
SSW
12
0.9
SW
11
0.8
SW
11
0.8
SW
10
0.8
E
13
0.8
E
12
0.7
E
12
0.9
SW
10
0.6
E
12
0.6
E
11
0.6
E
11
0.4
SE
10
0.4
SE
10
0.4
SE
10
0.4
SSW
13
0.5
SSW
12
0.5
SSW
12
0.6
S
10
0.8
S
10
1.3
SSW
14
Wave Graph
Metric surfscale
Energy kJ
278
260
176
140
128
215
196
138
163
98
94
88
26
27
35
55
86
81
79
135
659
Wind (km/h)
25
WSW
35
SW
35
SW
30
SW
15
NNE
20
SW
15
SW
20
WSW
10
NNW
15
NE
25
ENE
15
NE
5
ENE
20
N
20
N
15
NNE
15
NNE
10
NE
10
ESE
15
SSE
25
S
Wind State
on
on
on
on
cross-off
on
on
on
cross-off
off
cross-off
off
glassy
cross-off
cross-off
off
off
off
cross-off
cross
cross-on
High Tide
4:44PM1.42m
3:22AM1.46m
5:04PM1.46m
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
Low Tide
9:44AM0.22m
9:58PM0.87m
10:16AM0.18m
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
clear
clear
rain showers
thunderstorm
thunderstorm
part cloud
thunderstorm
thunderstorm
light rain
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:07
5:09
5:09
5:11
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:15
6:13
6:12
6:10
6:08
6:07
 mm
1
1
1
1
1
2
5
Temp °C
28
28
27
28
26
26
27
27
26
26
26
25
26
25
24
24
25
25
27
28
27
Feels °C
29
28
28
29
28
27
27
28
27
26
25
25
30
26
25
26
27
27
31
31
29
  • 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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