Mera surfForecast / Chiba / Japan

information circle16 Day Weather and Surf, issued 2 pm Friday 08 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
19.9° C
(Which is normal for this time of year)

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 Saturday (May 09) at 12PM. The primary swell is predicted to be 1.4m and 8s period with a secondary swell of 0.6m 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 2.3m 11s and forecast to arrive on Friday (May 15) at 6PM. Winds are predicted to be cross-onshore 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 (May 10) at 9PM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Sat 9th May)4.5ft (1.4m) 8s
Best Surf 3AM (Fri 15th May)5.5ft (1.7m) 10s
Most Powerful 6PM (Fri 15th May)7.5ft (2.3m) 11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 20°C on Fri afternoon, min 17°C on Fri night). Winds decreasing (near gales from the WSW on Fri night, light winds from the E by Sat night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 19°C on Wed morning, min 16°C on Wed night). Wind will be generally light.

Fri
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
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
3
2
1
1
0
0
0
0
0
0
0
1
2
1
2
2
2
2
3
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
1.7
SSW
6
2.3
SW
7
3
W
8
1.1
SW
8
0.7
SE
10
0.8
SE
10
0.7
ESE
9
1.3
SE
6
0.7
ESE
10
0.7
ESE
10
0.8
ESE
10
1.1
SE
8
1.3
SE
9
1.3
SE
9
1.2
SE
9
1.3
ESE
9
1.3
ESE
9
1.4
ESE
8
1.4
ESE
8
1.6
ESE
8
1.9
ESE
10
Wave Graph
Metric surfscale
Energy kJ
185
452
1190
129
108
115
76
111
90
86
107
162
281
255
226
244
267
268
270
368
740
Wind (km/h)
40
SSW
45
SW
10
WSW
10
ENE
5
E
15
ENE
20
SSE
20
S
20
S
20
S
20
S
10
S
15
S
5
SSW
10
E
20
ESE
15
NE
15
NE
15
E
10
NNE
10
N
on
on
on
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-off
cross-off
off
off
cross-off
off
cross-off
High Tide
10:17PM1.08m
7:25AM1.12m
11:28PM1.08m
8:42AM1.03m
00:24AM1.10m
10:52AM0.99m
1:03AM1.15m
12:48PM1.04m
1:35AM1.21m
2:07PM1.15m
2:05AM1.27m
3:10PM1.26m
2:35AM1.34m
Low Tide
2:41AM0.93m
3:23PM0.30m
4:20AM0.91m
4:35PM0.38m
6:08AM0.82m
5:53PM0.44m
7:12AM0.65m
7:01PM0.50m
7:59AM0.46m
7:59PM0.56m
8:40AM0.26m
8:49PM0.63m
9:20AM0.07m
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:43
4:41
4:41
4:39
4:39
4:37
4:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:30
6:31
6:32
6:32
6:34
6:35
6:36
Temp °C
20
20
17
19
17
18
18
18
18
18
18
18
18
18
19
19
18
19
19
18
19
15
13
14
16
14
15
14
15
15
15
15
16
15
17
18
16
17
18
17
17
19
Swell 1
Height (m)
Direction
Period (s)
0.8
ESE
10
0.7
SE
11
1.9
WSW
8
1.1
SW
8
0.7
SE
10
0.8
SE
10
0.7
ESE
9
0.5
ESE
9
0.7
ESE
10
0.8
SSE
6
0.8
SSE
8
1.1
SE
8
1.3
SE
9
1.3
SE
9
1.2
SE
9
1.3
ESE
9
1.3
ESE
9
1.4
ESE
8
1.4
ESE
8
1.6
ESE
8
1.9
ESE
10
Energy kJ
138
115
476
129
108
115
76
47
90
34
76
162
281
255
226
244
267
268
270
368
740
Swell 2
Height (m)
Direction
Period (s)
0.1
N
11
0.6
SE
10
0.6
SE
10
0.7
SW
7
0.4
SW
6
0.2
WSW
6
0.3
SE
11
0.7
ESE
10
0.8
ESE
10
0.6
ESE
9
0.1
E
10
0.1
NE
12
0.1
NE
10
0.1
S
8
0.1
NE
10
0.1
NE
10
0.9
E
8
0.1
NE
10
Energy kJ
2
82
87
50
11
4
19
86
107
66
2
6
4
1
4
4
109
4
Swell 3
Height (m)
Direction
Period (s)
0.4
NE
5
0.2
SSW
6
0.1
NE
7
0.1
NE
6
0.1
W
6
0.1
E
11
0.1
NE
11
0.1
S
9
0.1
S
8
0.1
S
8
0.1
S
7
0.1
NE
10
Energy kJ
7
4
2
2
1
2
4
2
1
1
1
4
Wind waves
Height (m)
Direction
Period (s)
1.7
SSW
6
2.3
SW
7
3
W
8
0.2
ENE
5
0.5
ENE
3
1
ESE
5
1.3
SE
6
1
SSE
6
0.5
ESE
3
Energy kJ
185
452
1190
2
7
46
111
75
6
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
1
1
1
1
1
1
1
1
2
2
1
2
2
2
2
3
Distance (km)
483
73
14
0
0
0
64
64
64
64
64
36
64
12
0
36
0
0
0
0
0
Best forecast wave conditions in Chiba
Rating
(10 max)
3
2
2
1
1
1
1
1
1
1
2
1
2
2
2
2
2
2
3
Best forecast wave conditions in Japan
Rating
(10 max)
1
1
2
3
1
1
1
1
1
1
1
2
1
2
2
1
2
2
2
2
3
Header Global
Rating
(10 max)
6
6
5
5
5
4
5
5
9
5
5
5
6
8
9
7
5
5
5
4
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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