Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera Surf Forecast and Surf Report

Issued: 2 am 22 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
26.2° C
0.3° 

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


Mera surf forecast from 21 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 9PM (local time) - 2ft (0.6m), 11s period, SE swell with offshore winds.
  • Most powerful swell: Thursday 23 Jul, 3AM (local time) - 2.5ft (0.8m), 10s period, E swell with 125 kJ wave energy.
  • Next surfable swell (1★+): Thursday 23 Jul, 9AM (local time) - 2.5ft (0.7m), 10s 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 (Jul 23) at 9AM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 1.0m and 6s. 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 0.8m 10s and forecast to arrive on Thursday (Jul 23) at 3AM. 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 10s period and expected on Wednesday (Jul 22) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 23rd Jul)2.5ft (0.7m) 10s
Best Surf 9PM (Sun 26th Jul)2ft (0.6m) 11s
Most Powerful 3AM (Thu 23rd Jul)2.5ft (0.8m) 10s

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


Short Range Forecast

Some drizzle, heaviest during Thu night. Warm (max 29°C on Thu morning, min 26°C on Thu night). Mainly fresh winds.

Days 4-6 Weather Summary

Moderate rain (total 19mm), heaviest on Sat night. Warm (max 27°C on Sat afternoon, min 22°C on Sun night). Wind will be generally light.

Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
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
1
0
1
1
0
1
1
1
1
1
1
1
1
1
1
1
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
SW
4
1
SW
5
1.3
SW
5
0.7
E
10
0.7
E
10
0.6
E
9
0.6
E
9
0.5
SE
11
0.4
SE
16
0.4
SE
16
0.4
SE
16
0.4
SE
15
0.6
SE
11
0.4
SE
14
0.9
E
7
1
E
7
0.6
SE
10
0.6
SE
10
0.6
SE
10
0.5
SE
10
0.5
SE
10
Wave Graph
Metric surfscale
Energy kJ
22
42
87
94
88
61
60
57
91
90
88
78
76
74
72
93
65
64
64
49
47
Wind (km/h)
25
SW
25
SW
35
SW
10
N
10
SSE
5
NNE
15
ENE
15
ESE
15
E
20
ENE
15
E
20
NE
20
NNE
15
NNE
15
N
15
NNE
5
NE
10
NNE
5
E
10
SSW
10
SE
Wind State
on
on
on
cross-off
cross-on
cross-off
off
cross-off
cross-off
off
cross-off
off
off
off
cross-off
off
off
cross-off
glassy
cross-on
cross
High Tide
10:53AM1.05m
9:30PM1.36m
1:15PM1.05m
10:10PM1.33m
3:15PM1.13m
11:15PM1.31m
3:59PM1.22m
00:39AM1.31m
4:27PM1.29m
1:51AM1.34m
4:54PM1.35m
2:45AM1.39m
5:20PM1.39m
Low Tide
3:14PM0.89m
5:28AM0.52m
3:52PM1.02m
6:47AM0.46m
5:36PM1.12m
7:53AM0.38m
7:45PM1.13m
8:45AM0.30m
8:55PM1.08m
9:28AM0.22m
9:40PM1.01m
10:05AM0.15m
10:17PM0.95m
clear
clear
clear
clear
clear
thunderstorm
clear
clear
part cloud
part cloud
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:41
4:41
4:43
4:43
4:45
4:45
4:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:51
6:50
6:50
6:49
6:47
6:47
6:46
 mm
1
1
10
3
4
1
Temp °C
28
28
27
29
29
28
27
28
27
26
27
25
23
24
24
24
24
24
25
26
26
Feels °C
30
30
27
35
34
34
30
31
31
28
30
26
24
26
26
26
27
27
28
28
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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