Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 pm 02 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 2 Jul 2026:

  • Best quality surf: Tuesday 7 Jul, 12PM (local time) - 7.5ft (2.3m), 16s period, SE swell with offshore winds.
  • Most powerful swell: Thursday 9 Jul, 3AM (local time) - 10ft (3.0m), 16s period, SSE swell with 4,293 kJ wave energy.
  • Next surfable swell (1★+): Friday 3 Jul, 12AM (local time) - 5ft (1.6m), 8s period with SW 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 03) at 12AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.4m and 9s. 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 16s and forecast to arrive on Thursday (Jul 09) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Sunday (Jul 05) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 3rd Jul)5ft (1.6m) 8s
Best Surf12PM (Tue 7th Jul)7.5ft (2.3m) 16s
Most Powerful 3AM (Thu 9th Jul)10ft (3.0m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 12mm), heaviest on Thu afternoon. Warm (max 23°C on Sat morning, min 20°C on Fri morning). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 9mm), mostly falling on Sun night. Warm (max 24°C on Tue afternoon, min 21°C on Mon night). Wind will be generally light.

Thu
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
2
1
1
0
0
0
0
0
0
0
2
2
4
4
5
5
5
5
4
4
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)
2.1
SW
7
1.6
SW
8
0.9
SW
8
0.8
SW
7
0.5
SW
7
0.5
SW
7
0.4
SE
11
0.4
SE
10
0.4
ESE
10
1.1
SE
5
0.5
SE
15
0.8
SE
14
0.9
SE
13
1.6
SE
14
2.2
SE
16
2.3
SE
16
2.5
SSE
15
3
SSE
16
3
SSE
15
3
SSE
16
2.2
SSE
14
Wave Graph
Metric surfscale
Energy kJ
432
306
101
65
25
23
29
28
40
65
112
228
282
1018
2506
2594
3049
3847
3478
3857
1868
Wind (km/h)
20
NW
15
NNE
15
NE
5
ENE
10
ENE
10
E
15
S
10
SSW
10
SE
20
SE
20
E
20
ENE
20
E
15
ENE
15
NE
15
E
10
E
10
ENE
15
ESE
10
SE
10
S
Wind State
cross
off
off
cross-off
cross-off
cross-off
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
High Tide
7:09PM1.37m
5:26AM1.42m
7:37PM1.36m
6:04AM1.39m
8:04PM1.35m
6:47AM1.34m
8:30PM1.34m
7:38AM1.27m
8:57PM1.33m
8:41AM1.18m
9:26PM1.34m
10:08AM1.11m
10:01PM1.34m
Low Tide
00:14AM0.87m
12:34PM0.08m
00:49AM0.84m
1:06PM0.15m
1:27AM0.80m
1:40PM0.25m
2:11AM0.75m
2:15PM0.39m
3:04AM0.68m
2:52PM0.56m
4:07AM0.59m
3:36PM0.74m
5:22AM0.49m
mod rain
cloud
cloud
cloud
part cloud
rain showers
light rain
rain showers
part cloud
cloud
rain showers
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:31
4:31
4:31
4:31
4:33
4:33
4:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:58
6:58
6:58
6:57
6:57
6:57
6:57
 mm
6
1
2
3
9
Temp °C
22
21
21
22
22
23
23
23
23
23
22
23
23
22
23
24
23
23
23
22
23
Feels °C
22
21
22
24
23
24
23
24
25
23
23
22
22
22
24
24
23
24
23
23
25
Swell 1
Height (m)
Direction
Period (s)
0.4
ESE
8
1.6
SW
8
0.9
SW
8
0.8
SW
7
0.5
SW
7
0.6
ENE
8
0.6
ENE
8
0.5
E
8
0.4
ENE
8
0.4
ENE
8
0.5
SE
15
1.3
SE
7
1.1
SE
7
1.6
SE
14
2.2
SE
16
2.3
SE
16
2.5
SSE
15
3
SSE
16
3
SSE
15
3
SSE
16
2.2
SSE
14
Energy kJ
28
306
101
65
25
51
51
34
21
22
112
149
121
1018
2506
2594
3049
3847
3478
3857
1868
Swell 2
Height (m)
Direction
Period (s)
0.2
ESE
12
0.4
ESE
9
0.6
S
6
0.5
S
6
0.3
SSE
6
0.5
SW
7
0.4
SW
7
0.5
S
4
0.4
ESE
10
0.3
ESE
10
0.4
ESE
11
0.8
SE
14
0.9
SE
13
0.8
SSE
17
1
SE
7
0.7
SSE
20
1.7
SSE
17
0.5
E
10
0.5
E
9
0.8
S
21
1.8
S
17
Energy kJ
15
27
27
18
6
23
11
6
40
20
37
228
282
364
104
432
1592
44
37
567
1777
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
10
0.2
ESE
12
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.2
ESE
9
0.4
SE
11
0.4
SE
10
0.2
WSW
6
0.1
SE
10
0.3
ENE
8
0.4
ENE
8
0.4
SSE
18
0.2
WSW
6
0.4
E
9
0.9
SW
6
Energy kJ
4
14
16
16
16
8
29
28
3
4
13
21
130
4
26
44
Wind waves
Height (m)
Direction
Period (s)
2.1
SW
7
0.5
NE
5
0.6
ENE
6
0.7
ENE
7
0.5
SSE
3
0.5
S
4
0.7
SE
4
1.1
SE
5
1.2
SE
6
1.4
ESE
7
1
SW
5
Energy kJ
432
13
26
44
6
6
16
65
98
191
43
Nearest Offshore or Glassy
Rating
(10 max)
3
2
1
1
1
1
1
1
1
1
1
1
1
4
4
5
5
5
5
4
6
Distance (km)
12
0
0
0
56
64
64
64
563
544
73
39
14
0
0
0
0
0
0
47
36
Best forecast wave conditions in Chiba
Rating
(10 max)
3
2
1
1
1
1
1
1
1
4
4
5
5
5
5
5
7
Best forecast wave conditions in Japan
Rating
(10 max)
3
2
1
1
1
1
1
1
1
1
2
2
2
4
4
5
5
5
5
6
7
Header Global
Rating
(10 max)
7
5
8
5
5
5
7
5
5
9
7
9
8
9
9
6
7
7
9
7
9
  • 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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