Mera Surf Break

Mera Surf Forecast and Surf Report

Lat Long: 34.90° N 139.84° E

Issued: 2 am 02 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
23.7° C

Normal for this time of year

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


Mera surf forecast from 1 Jul 2026:

  • Best quality surf: Tuesday 7 Jul, 6PM (local time) - 8ft (2.5m), 16s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 8 Jul, 6AM (local time) - 8ft (2.5m), 16s period, SSE swell with 3,740 kJ wave energy.
  • Next surfable swell (1★+): Friday 3 Jul, 12AM (local time) - 4.5ft (1.3m), 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 12AM. The primary swell is predicted to be 1.3m and 7s 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 2.5m 16s and forecast to arrive on Wednesday (Jul 08) at 6AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Monday (Jul 06) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 3rd Jul)4.5ft (1.3m) 7s
Best Surf 6PM (Tue 7th Jul)8ft (2.5m) 16s
Most Powerful 6AM (Wed 8th Jul)8ft (2.5m) 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 11mm), heaviest on Thu morning. Warm (max 24°C on Thu morning, min 20°C on Thu night). Winds decreasing (strong winds from the SW on Thu morning, calm by Sat night).

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Sun morning. Warm (max 24°C on Sun afternoon, min 22°C on Mon night). Wind will be generally light.

Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
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
2
2
1
1
0
0
0
0
0
0
0
1
2
4
4
4
5
4
3
3
Swell
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
6
2.1
SW
7
1.3
SW
7
0.9
SW
8
0.8
SW
7
0.6
SW
7
0.5
SW
7
0.4
SE
11
0.4
ESE
10
0.4
ESE
10
0.4
ESE
10
0.4
SE
16
0.8
SE
14
1.1
SE
13
1.4
SE
14
2
SE
16
2.3
SSE
16
2.5
SSE
15
2.5
SSE
16
2.5
SSE
15
2.4
SSE
15
Wave Graph
Metric surfscale
Energy kJ
317
479
176
96
65
44
23
31
41
38
33
89
248
451
825
2135
2799
3246
3652
2784
2627
Wind (km/h)
40
SW
15
N
15
NNE
10
NNE
10
NE
5
NE
10
E
10
SSE
5
S
5
SSE
15
SE
20
SE
20
ESE
20
ESE
15
E
10
ENE
15
E
10
E
10
SE
15
SE
10
S
Wind State
on
cross-off
off
off
off
off
cross-off
cross
cross-on
glassy
cross
cross
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross
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
12:00PM0.05m
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
thunderstorm
light rain
cloud
cloud
cloud
part cloud
light rain
cloud
rain showers
rain showers
part cloud
light rain
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:30
4:31
4:31
4:31
4:31
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
 mm
5
3
1
2
1
2
Temp °C
24
21
21
21
21
22
23
23
23
23
24
23
23
24
23
24
24
22
23
23
22
Feels °C
21
21
20
22
23
24
25
24
25
26
25
24
23
24
24
25
24
23
25
23
23
Swell 1
Height (m)
Direction
Period (s)
0.5
ESE
9
1.9
SW
7
1.3
SW
7
0.9
SW
8
0.8
SW
7
0.6
SW
7
0.5
SW
7
0.4
SW
7
0.4
ENE
7
0.4
ESE
10
0.4
ESE
10
0.5
E
10
0.8
SE
14
1.1
SE
13
1.4
SE
14
2
SE
16
2.3
SSE
16
2.5
SSE
15
2.5
SSE
16
2.5
SSE
15
2.4
SSE
15
Energy kJ
42
381
176
96
65
44
23
16
17
38
33
56
248
451
825
2135
2799
3246
3652
2784
2627
Swell 2
Height (m)
Direction
Period (s)
0.3
ESE
13
0.4
ESE
9
0.4
ESE
9
0.5
S
6
0.4
ENE
6
0.5
ENE
7
0.4
ENE
7
0.4
ENE
7
0.4
ESE
10
0.3
ENE
7
0.3
ENE
7
0.4
SE
16
0.4
SE
9
0.2
WSW
6
0.7
SSE
18
0.3
SW
6
0.8
SE
5
0.4
E
9
0.5
E
9
0.9
S
19
Energy kJ
32
29
27
18
15
26
17
15
41
10
11
89
20
4
302
6
28
23
42
592
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
10
0.2
ESE
12
0.2
ESE
12
0.4
ESE
9
0.4
SSE
6
0.3
SSE
6
0.3
ESE
9
0.4
SE
11
0.3
SW
6
0.2
WSW
6
0.2
WSW
6
0.2
WSW
6
0.4
E
11
0.1
S
7
0.3
SW
6
0.4
E
9
0.5
E
10
0.6
E
8
Energy kJ
4
15
14
28
11
6
16
31
6
4
4
4
37
1
6
23
45
52
Wind waves
Height (m)
Direction
Period (s)
2.1
SW
6
2.1
SW
7
0.4
NE
3
0.6
ENE
6
0.4
SSE
4
0.5
SE
4
0.6
SE
4
0.8
SE
5
1
SE
5
1
SE
5
0.9
SE
5
1
SSE
5
Energy kJ
317
479
2
22
5
7
10
30
48
50
38
42
Nearest Offshore or Glassy
Rating
(10 max)
1
3
2
1
1
1
1
1
1
1
1
1
1
1
4
4
4
5
4
4
4
Distance (km)
36
12
0
0
0
35
811
64
64
12
544
47
39
47
0
0
0
0
14
47
61
Best forecast wave conditions in Chiba
Rating
(10 max)
1
3
2
1
1
1
1
1
1
1
4
4
4
5
4
4
5
Best forecast wave conditions in Japan
Rating
(10 max)
1
3
2
1
1
1
1
1
1
1
1
1
1
2
4
4
4
5
5
4
5
Header Global
Rating
(10 max)
9
7
5
7
7
5
5
4
7
5
9
7
5
7
9
9
6
8
9
7
7
  • 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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