Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 8 am 03 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 3 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 9AM (local time) - 10ft (3.0m), 16s period, SSE swell with offshore winds.
  • Most powerful swell: Wednesday 8 Jul, 12PM (local time) - 10ft (3.0m), 16s period, SSE swell with 4,844 kJ wave energy.
  • Next surfable swell (1★+): Friday 3 Jul, 3PM (local time) - 2.5ft (0.8m), 7s 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 3PM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.5m 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 3.0m 16s and forecast to arrive on Wednesday (Jul 08) at 12PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Monday (Jul 06) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Fri 3rd Jul)2.5ft (0.8m) 7s
Best Surf 9AM (Wed 8th Jul)10ft (3.0m) 16s
Most Powerful12PM (Wed 8th 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 19mm), heaviest on Sat night. Warm (max 24°C on Sat morning, min 21°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Tue morning, min 21°C on Mon night). Mainly fresh winds.

Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
0
0
0
0
0
1
0
0
2
2
2
5
5
6
5
5
5
5
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
8
0.8
SW
7
0.6
SW
7
0.6
SSW
7
0.4
SW
7
0.4
SE
10
0.1
S
13
2
ESE
6
1.9
E
7
0.6
SE
14
2
E
8
1.7
E
8
1.9
SSE
17
2.5
SE
16
2.5
SE
16
3
SSE
16
3
SSE
16
3
SSE
16
2.2
SSE
14
2.5
S
16
2.1
S
14
Wave Graph
Metric surfscale
Energy kJ
159
65
33
31
16
27
4
305
331
153
453
332
1970
3726
3102
4330
4273
3659
1965
3387
1807
Wind (km/h)
15
NNE
10
ENE
10
E
10
SE
15
SSE
15
ESE
25
ESE
25
E
25
E
25
NE
30
NE
25
NNE
25
NNE
20
NE
20
NE
20
NE
15
ENE
15
NE
15
NE
10
ESE
5
ESE
Wind State
off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
off
off
off
off
off
off
cross-off
glassy
High Tide
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
12:08PM1.09m
10:47PM1.35m
Low Tide
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
4:35PM0.92m
cloud
cloud
part cloud
cloud
light rain
mod rain
light rain
light rain
light rain
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
part cloud
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
6:57
6:57
6:57
6:57
 mm
3
9
2
1
4
Temp °C
21
22
22
24
22
23
23
23
22
23
23
22
24
24
22
23
24
23
24
25
24
Feels °C
22
23
23
25
23
22
22
22
21
21
20
21
22
23
21
23
24
23
26
28
27
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
8
0.8
SW
7
0.6
SW
7
0.6
SSW
7
0.4
ENE
8
0.4
ENE
8
0.1
SW
6
0.1
SE
16
0.4
SW
7
0.6
SE
14
0.8
SE
13
1.7
E
8
1.9
SSE
17
2.5
SE
16
2.5
SE
16
3
SSE
16
3
SSE
16
3
SSE
16
2.2
SSE
14
2.5
S
16
2.1
S
14
Energy kJ
159
65
33
31
24
21
1
10
15
153
199
332
1970
3726
3102
4330
4273
3659
1965
3387
1807
Swell 2
Height (m)
Direction
Period (s)
0.4
ESE
9
0.5
S
6
0.4
ENE
7
0.4
ENE
7
0.4
SW
7
0.4
SE
10
0.1
NE
10
0.4
SE
15
0.2
WSW
7
0.4
SSE
18
0.9
SE
13
1.4
E
8
1.4
SSE
18
1
S
20
1.5
S
17
0.7
SSW
21
1.6
SSW
17
Energy kJ
31
18
19
19
16
27
4
54
5
120
277
241
1215
816
1236
454
1470
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
12
0.3
ESE
9
0.4
SSE
6
0.3
ESE
9
0.2
ESE
11
0.3
SW
6
0.1
S
13
0.1
SE
10
0.2
ESE
11
0.1
S
7
0.2
WSW
7
0.7
SSE
16
Energy kJ
14
16
10
15
12
6
4
4
12
1
4
215
Wind waves
Height (m)
Direction
Period (s)
0.5
NE
6
0.4
ENE
6
0.4
SSE
3
0.5
SSE
4
1.4
SE
5
2
ESE
6
1.9
E
7
2.3
ENE
7
2
E
8
1.6
E
7
1.5
E
8
1.1
E
7
Energy kJ
18
15
3
8
102
305
331
558
453
267
301
131
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
3
5
5
6
5
5
5
5
5
Distance (km)
0
0
56
64
64
64
533
47
47
14
50
43
50
0
0
0
0
0
0
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
2
1
1
1
1
1
1
4
5
5
6
5
5
5
5
5
Best forecast wave conditions in Japan
Rating
(10 max)
2
1
1
1
1
1
1
1
1
2
2
3
4
5
6
6
5
5
5
5
6
Header Global
Rating
(10 max)
9
5
9
5
6
8
5
9
7
5
9
9
8
6
5
9
9
9
5
5
6
  • 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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