Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 am 05 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.7° C

Slightly cooler than normal

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


Mera surf forecast from 4 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 12AM (local time) - 5.5ft (1.7m), 15s period, SSE swell with offshore winds.
  • Most powerful swell: Saturday 11 Jul, 12AM (local time) - 10ft (3.0m), 18s period, SSW swell with 6,414 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 9PM (local time) - 6ft (1.8m), 16s period with SSE 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 Tuesday (Jul 07) at 9PM. The primary swell is predicted to be 1.8m and 16s period with a secondary swell of 0.7m and 21s. Another secondary swell of 1.8m and 8s 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 3.0m 18s and forecast to arrive on Saturday (Jul 11) 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 2.1m 8s period and expected on Wednesday (Jul 08) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Tue 7th Jul)6ft (1.8m) 16s
Best Surf12AM (Wed 8th Jul)5.5ft (1.7m) 15s
Most Powerful12AM (Sat 11th Jul)10ft (3.0m) 18s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 28mm), heaviest during Mon afternoon. Warm (max 24°C on Tue afternoon, min 21°C on Mon night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Thu afternoon, min 21°C on Wed night). Wind will be generally light.

Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
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
1
1
0
1
2
3
3
5
5
5
4
4
4
3
4
3
4
4
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)
1.3
SE
6
1.8
SE
7
1.8
SE
7
1.7
ESE
7
1.7
ESE
7
1.9
E
7
1
SSE
15
1.4
SSE
14
1.7
SSE
15
2.2
SSE
17
2.2
SSE
16
2.4
SSE
16
2
S
14
1.8
S
14
2.4
S
15
2.5
S
16
3
SSW
16
3
SSW
18
3
SSW
17
3
SSW
16
3
SSW
16
Wave Graph
Metric surfscale
Energy kJ
96
289
287
251
286
331
493
796
1344
2762
2472
2731
1691
1298
2614
3742
3954
6414
5927
4621
4796
Wind (km/h)
20
SE
25
ESE
20
ESE
25
ESE
25
ESE
30
ENE
30
NNE
30
NE
20
NE
20
NE
15
ENE
10
E
10
ENE
15
ESE
10
SE
5
SSE
15
SSE
15
S
15
SSW
30
SSW
25
SW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
cross-off
off
cross-off
cross
cross
cross-on
cross-on
on
on
on
High Tide
8:30PM1.34m
7:38AM1.27m
8:57PM1.33m
8:41AM1.18m
9:26PM1.34m
10:08AM1.11m
10:01PM1.34m
12:08PM1.09m
10:47PM1.35m
2:11PM1.17m
11:46PM1.37m
3:34PM1.28m
00:56AM1.41m
Low Tide
1:40PM0.25m
2:11AM0.75m
2:15PM0.39m
3:04AM0.68m
2:52PM0.56m
4:07AM0.59m
3:36PM0.74m
5:22AM0.49m
4:35PM0.92m
6:39AM0.35m
6:07PM1.06m
7:47AM0.20m
7:50PM1.12m
light rain
part cloud
light rain
light rain
heavy rain
mod rain
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:31
4:33
4:33
4:33
4:33
4:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:57
6:57
6:57
6:57
6:55
6:55
 mm
1
1
5
12
9
Temp °C
23
23
23
22
22
22
23
24
22
23
23
22
23
24
23
24
24
24
24
24
24
Feels °C
23
22
23
21
21
19
21
22
21
23
23
22
25
25
25
26
25
25
25
23
24
Swell 1
Height (m)
Direction
Period (s)
0.3
ESE
10
0.3
ESE
10
0.4
SW
7
0.7
SE
14
0.9
SE
13
0.9
SE
12
1
SSE
15
1.4
SSE
14
1.9
E
8
2.2
SSE
17
2.2
SSE
16
2.4
SSE
16
2
S
14
1.8
S
14
2.4
S
15
2.5
S
16
3
SSW
16
3
SSW
18
3
SSW
17
3
SSW
16
3
SSW
16
Energy kJ
20
21
15
208
286
244
493
796
489
2762
2472
2731
1691
1298
2614
3742
3954
6414
5927
4621
4796
Swell 2
Height (m)
Direction
Period (s)
0.2
SSE
10
0.1
SW
6
0.4
SE
15
0.4
SW
7
0.4
SW
7
0.7
SSE
16
1
SE
12
0.8
SE
10
1.7
SSE
15
1.7
E
9
1
S
19
1.3
E
8
1.2
S
18
1.4
S
16
1
E
8
0.9
E
8
0.9
E
7
0.8
E
8
0.8
E
9
0.7
ESE
9
0.6
E
9
Energy kJ
10
1
55
11
11
212
264
132
1344
449
745
212
891
1055
114
93
83
92
99
82
57
Swell 3
Height (m)
Direction
Period (s)
0.2
WSW
6
0.1
SE
16
0.2
ENE
8
0.2
E
11
0.3
ENE
8
0.3
SW
6
0.4
SW
7
0.5
SSE
20
1.1
SSE
19
0.8
S
20
1.1
E
8
1.1
E
8
0.9
E
7
Energy kJ
4
10
6
9
12
6
19
237
901
520
133
133
85
Wind waves
Height (m)
Direction
Period (s)
1.3
SE
6
1.8
SE
7
1.8
SE
7
1.7
ESE
7
1.7
ESE
7
1.9
E
7
1.9
E
7
1.8
E
8
2.1
E
8
2
E
9
1.6
E
9
1.4
ENE
8
1.1
E
8
Energy kJ
96
289
287
251
269
331
397
377
601
632
373
204
133
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
1
2
2
3
3
5
5
5
4
4
4
4
5
4
4
5
4
4
Distance (km)
244
47
14
43
153
14
153
14
0
0
0
0
0
0
47
36
47
61
64
70
60
Best forecast wave conditions in Chiba
Rating
(10 max)
2
2
3
5
5
5
4
4
4
4
4
4
5
5
4
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
2
2
3
2
3
4
5
5
6
6
5
4
7
5
9
9
6
9
5
Header Global
Rating
(10 max)
5
9
7
5
5
8
7
5
5
9
8
9
9
6
6
5
5
4
6
5
5
  • 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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