Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 8 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 5 Jul 2026:

  • Best quality surf: Wednesday 8 Jul, 6AM (local time) - 7ft (2.2m), 17s period, SSE swell with offshore winds.
  • Most powerful swell: Saturday 11 Jul, 6AM (local time) - 10ft (3.0m), 17s period, SSW swell with 6,198 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 12AM (local time) - 5.5ft (1.7m), 7s 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 Tuesday (Jul 07) at 12AM. The primary swell is predicted to be 1.7m and 7s period with a secondary swell of 0.9m and 12s. Another secondary swell of 0.7m and 16s 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 17s and forecast to arrive on Saturday (Jul 11) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 8s period and expected on Sunday (Jul 05) at 6PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 7th Jul)5.5ft (1.7m) 7s
Best Surf 6AM (Wed 8th Jul)7ft (2.2m) 17s
Most Powerful 6AM (Sat 11th Jul)10ft (3.0m) 17s

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 23mm), heaviest during Mon night. Warm (max 24°C on Sun morning, min 21°C on Mon night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Fri morning, min 22°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
1
1
3
4
4
4
5
5
4
4
3
4
5
3
3
3
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
ESE
10
1.7
SE
7
1.7
ESE
7
1.6
ESE
7
0.9
SE
13
1.7
E
7
1.1
SSE
16
1.4
SSE
14
1.8
SSE
17
2.2
SSE
16
2.2
SSE
16
2.4
SSE
16
2.4
S
15
1.9
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
34
261
266
229
286
270
589
834
1813
2663
2441
2662
2445
1442
2512
3605
3905
5651
5859
5231
4694
Wind (km/h)
20
ESE
25
ESE
20
ESE
20
E
25
E
25
ENE
20
NE
20
NE
15
ENE
15
NE
15
E
15
E
10
ENE
15
ESE
10
E
5
ENE
20
SE
15
S
15
S
25
S
20
S
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross
cross-on
cross-on
cross-on
cross-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
rain showers
part cloud
light rain
light rain
light rain
heavy rain
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
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
2
4
5
11
Temp °C
24
24
23
22
22
21
23
24
23
23
24
22
23
24
23
25
25
24
24
24
24
Feels °C
24
23
23
22
21
19
21
23
23
23
25
21
24
24
24
27
26
26
26
24
24
Swell 1
Height (m)
Direction
Period (s)
0.4
ESE
10
0.3
ESE
10
0.4
SW
6
0.7
SE
14
0.9
SE
13
0.9
SE
12
1.1
SSE
16
1.4
SSE
14
1.8
SSE
17
2.2
SSE
16
2.2
SSE
16
2.4
SSE
16
2.4
S
15
1.9
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
34
20
15
208
286
244
589
834
1813
2663
2441
2662
2445
1442
2512
3605
3905
5651
5859
5231
4694
Swell 2
Height (m)
Direction
Period (s)
0.2
WSW
6
0.2
WSW
6
0.4
SE
15
0.4
SW
7
0.4
SW
7
0.7
SSE
16
1
SE
12
0.8
SE
11
0.8
SSE
20
1.7
E
8
0.9
S
19
1.3
E
8
1.1
E
8
1.4
S
16
0.9
ESE
8
0.9
ESE
8
0.8
ESE
10
0.6
E
10
0.5
E
9
0.5
E
9
0.5
E
9
Energy kJ
4
3
55
11
11
212
264
134
523
411
599
223
142
1055
115
112
128
65
41
41
41
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
10
0.1
SE
16
0.2
SSE
18
0.2
ESE
11
0.1
NE
8
0.3
SW
6
0.2
WSW
7
0.5
SSE
19
0.2
WSW
7
0.6
S
21
1.1
E
8
1
E
8
Energy kJ
4
10
31
12
2
6
4
207
5
326
138
137
Wind waves
Height (m)
Direction
Period (s)
1.1
SE
5
1.7
SE
7
1.7
ESE
7
1.6
ESE
7
1.6
ESE
7
1.7
E
7
1.6
E
7
1.6
E
7
1.8
E
8
1.6
E
8
1
E
7
Energy kJ
60
261
266
229
244
270
239
246
367
360
108
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
1
1
3
4
4
4
5
5
4
4
4
4
5
4
4
5
4
4
Distance (km)
504
47
14
39
47
0
0
0
0
0
0
0
0
14
0
0
47
61
64
64
64
Best forecast wave conditions in Chiba
Rating
(10 max)
2
3
4
4
4
5
5
4
4
4
4
5
5
5
4
4
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
2
2
2
3
4
4
4
5
5
5
5
4
5
5
4
8
9
9
5
Header Global
Rating
(10 max)
5
9
7
5
6
8
7
5
5
9
8
9
9
5
5
5
5
8
7
6
8
  • 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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