Mera surfForecast / Chiba / Japan

information circle16 Day Weather and Surf, issued 2 pm Sunday 31 May 2026 JST
Forecast update in hr  min  s Forecast update imminent
Mera surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mera sea temperature is
22.5° C
(Which is slightly warmer than usual)

Mera surf forecast from 31 May 2026:

  • Best quality surf: Wednesday 3 Jun, 6PM (local time) - 16ft (5.0m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 3 Jun, 9PM (local time) - 20ft (6.0m), 14s period, SW swell with 13,492 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 3 Jun, 6PM (local time) - 16ft (5.0m), 16s 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 Wednesday (Jun 03) at 6PM. The primary swell is predicted to be 5.0m and 16s period with a secondary swell of 5.0m and 10s. 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 6.0m 14s and forecast to arrive on Wednesday (Jun 03) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Thursday (Jun 04) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Wed 3rd Jun)16ft (5.0m) 16s
Best Surf 6PM (Wed 3rd Jun)16ft (5.0m) 16s
Most Powerful 9PM (Wed 3rd Jun)20ft (6.0m) 14s

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 73mm), heaviest during Wed morning. Warm (max 23°C on Sun afternoon, min 19°C on Sun night). Winds increasing (light winds from the S on Mon night, near gales from the E by Wed morning).

Days 5-7 Weather Summary

Heavy rain (total 178mm), heaviest during Wed afternoon. Warm (max 22°C on Thu afternoon, min 18°C on Thu night). Winds decreasing (gales from the N on Wed night, light winds from the ENE by Fri night).

Sun
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
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
0
0
0
0
1
1
0
1
0
0
1
2
2
1
0
1
0
0
0
0
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)
0.8
E
10
0.8
S
11
0.7
SSW
16
1.1
S
15
1.2
SSW
13
1.6
SSW
14
1.7
SSW
13
1.3
SSW
12
3
SE
8
3.5
SW
16
4
SW
13
1.8
SW
11
1.7
SE
9
1
ESE
9
1.3
E
8
0.7
SSW
7
0.5
ESE
9
0.4
ESE
9
0.4
ESE
9
0.3
ESE
8
0.3
SSW
7
Wave Graph
Metric surfscale
Energy kJ
128
160
229
537
475
996
1013
513
1152
6158
5549
703
468
165
241
47
44
30
31
14
10
Wind (km/h)
20
SSW
35
SW
20
SW
25
SSW
20
SSW
15
SSE
20
S
20
SSE
45
ESE
60
E
65
N
40
N
15
N
20
NNE
25
NNE
15
ENE
10
ENE
10
E
20
ESE
20
ESE
20
E
on
on
on
on
on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
off
cross-off
cross-off
cross-off
cross-off
High Tide
5:38PM1.32m
3:49AM1.40m
6:14PM1.32m
4:22AM1.39m
6:50PM1.31m
4:54AM1.37m
7:28PM1.29m
5:28AM1.34m
8:06PM1.26m
6:03AM1.30m
8:45PM1.23m
6:44AM1.25m
9:25PM1.21m
7:36AM1.18m
Low Tide
10:36PM0.87m
11:02AM-0.00m
11:12PM0.87m
11:36AM0.00m
11:48PM0.88m
12:11PM0.02m
00:24AM0.89m
12:47PM0.06m
1:01AM0.89m
1:25PM0.12m
1:44AM0.89m
2:05PM0.20m
2:36AM0.87m
part cloud
clear
clear
clear
part cloud
cloud
cloud
heavy rain
heavy rain
heavy rain
heavy rain
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:28
4:28
4:26
4:26
4:26
4:26
4:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:47
6:49
6:49
6:50
6:50
6:51
6:51
14
59
127
51
Temp °C
23
20
21
21
21
21
22
21
20
21
21
21
22
19
21
20
20
21
21
21
21
22
14
19
18
19
20
21
20
15
16
15
18
21
16
18
18
20
20
19
19
18
Swell 1
Height (m)
Direction
Period (s)
0.8
E
10
0.8
S
11
0.7
S
11
1.1
S
15
1.2
SSW
13
1.6
SSW
14
1.7
SSW
13
1.3
SSW
12
1.4
SW
14
3.5
SW
16
4
SW
13
1.8
SE
9
1.7
SE
9
1
ESE
9
0.9
SSW
8
0.7
SSW
7
0.5
ESE
9
0.9
ENE
11
0.8
ENE
11
0.9
ENE
11
1
ENE
12
Energy kJ
128
160
114
537
475
996
1013
513
802
6158
5549
586
468
165
83
47
44
193
157
219
275
Swell 2
Height (m)
Direction
Period (s)
0.6
S
12
0.7
E
10
0.7
E
10
0.6
E
10
0.7
SW
17
0.6
E
10
0.6
E
9
0.7
SW
16
0.9
WSW
18
3
SE
10
1.8
SW
11
1.3
SW
10
0.9
SW
8
0.7
NE
11
0.1
SE
12
0.6
SSW
7
0.4
ESE
9
0.4
ESE
9
0.3
ESE
8
0.3
SSW
7
Energy kJ
106
94
92
66
302
64
62
267
541
1537
703
334
120
121
5
31
30
31
14
10
Swell 3
Height (m)
Direction
Period (s)
0.3
SSW
14
0.3
SE
12
0.7
SSW
16
0.3
SE
11
0.6
E
10
0.3
SE
12
0.3
SE
12
0.6
E
9
0.4
S
9
0.3
S
9
0.7
NE
10
0.1
SE
12
0.4
SSW
7
0.3
SSW
6
0.2
SSW
7
0.1
SW
10
Energy kJ
41
22
229
20
65
21
21
60
25
14
112
6
17
8
4
4
Wind waves
Height (m)
Direction
Period (s)
0.5
S
6
1.4
SW
6
0.8
SW
6
0.6
SW
5
1.1
SE
6
3
SE
8
4.5
SSE
10
2
NW
6
0.3
N
4
0.9
S
8
1
SE
8
1.3
E
8
1.5
E
12
1.1
ENE
12
0.6
E
4
0.6
ESE
4
1.1
ESE
5
Energy kJ
18
128
38
16
72
1152
4190
287
4
107
110
241
639
336
10
13
57
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
4
2
2
2
2
4
3
3
1
3
2
1
1
1
2
3
3
1
Distance (km)
64
69
36
504
73
47
47
47
804
546
153
70
12
0
14
36
0
56
1031
64
914
Best forecast wave conditions in Chiba
Rating
(10 max)
1
2
2
2
2
3
2
1
1
2
3
Best forecast wave conditions in Japan
Rating
(10 max)
3
3
3
4
4
4
2
2
4
4
3
3
3
2
2
1
1
2
1
3
1
Header Global
Rating
(10 max)
6
5
5
4
5
5
5
6
4
5
4
5
5
4
5
5
9
7
6
6
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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