Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera Surf Forecast and Surf Report

Issued: 8 pm 14 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
25.5° C
0.0° 

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


Mera surf forecast from 14 Jul 2026:

  • Best quality surf: Friday 17 Jul, 3AM (local time) - 3ft (0.9m), 9s period, E swell with glassy winds.
  • Most powerful swell: Thursday 16 Jul, 12AM (local time) - 3.5ft (1.0m), 9s period, SSW swell with 165 kJ wave energy.
  • Next surfable swell (1★+): Friday 17 Jul, 3AM (local time) - 3ft (0.9m), 9s 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 Friday (Jul 17) at 3AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.7m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 1.0m 9s and forecast to arrive on Thursday (Jul 16) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 10s period and expected on Tuesday (Jul 21) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 17th Jul)3ft (0.9m) 9s
Best Surf 3AM (Fri 17th Jul)3ft (0.9m) 9s
Most Powerful12AM (Thu 16th Jul)3.5ft (1.0m) 9s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Fri morning. Warm (max 28°C on Fri morning, min 26°C on Tue night). Winds decreasing (fresh winds from the SSW on Wed night, calm by Thu night).

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Mon afternoon, min 25°C on Fri night). Wind will be generally light.

Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tue
21
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
10
0.7
SW
9
0.7
SW
9
1
SSW
9
0.8
E
9
0.8
E
8
0.8
E
9
0.9
ESE
9
0.9
ESE
9
0.8
E
9
0.8
E
9
0.8
E
9
0.8
E
9
0.8
E
9
0.8
E
9
0.8
E
9
0.8
E
8
0.7
E
8
0.8
E
10
0.3
SW
9
0.3
SE
11
Wave Graph
Metric surfscale
Energy kJ
142
88
84
165
93
89
97
129
129
95
102
102
99
103
103
99
92
69
125
12
20
Wind (km/h)
15
S
10
S
20
SSW
30
SSW
15
W
15
SSW
10
SSW
5
ENE
20
SE
20
SE
15
SE
15
SE
10
SE
15
S
20
S
15
SSW
20
SW
20
SSW
20
SSW
5
SW
10
SE
Wind State
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
glassy
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
on
cross-on
on
on
cross
High Tide
3:57AM1.57m
6:24PM1.48m
4:48AM1.58m
6:55PM1.46m
5:36AM1.55m
7:24PM1.44m
6:24AM1.48m
7:50PM1.42m
7:14AM1.37m
8:14PM1.40m
8:09AM1.25m
8:37PM1.39m
9:17AM1.13m
Low Tide
10:43PM1.00m
11:13AM-0.12m
11:25PM0.92m
11:56AM-0.07m
00:06AM0.84m
12:35PM0.04m
00:47AM0.76m
1:11PM0.19m
1:30AM0.69m
1:44PM0.37m
2:17AM0.63m
2:15PM0.55m
3:09AM0.59m
2:45PM0.73m
clear
clear
clear
part cloud
clear
clear
clear
thunderstorm
thunderstorm
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:37
4:37
4:37
4:39
4:39
4:39
4:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:54
6:54
6:53
6:53
6:52
6:52
6:52
6:52
 mm
2
1
Temp °C
27
27
27
26
27
27
27
28
28
26
26
26
25
26
26
26
26
27
26
27
28
Feels °C
29
30
29
26
31
30
31
32
31
28
28
28
28
29
27
29
29
29
28
32
32
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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