Mera Surf Break

Lat Long: 34.90° N 139.84° E

Mera Surf Forecast and Surf Report

Issued: 2 am 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
26.7° C
0.1° 

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


Mera surf forecast from 7 Aug 2026:

  • Best quality surf: Sunday 9 Aug, 3AM (local time) - 6ft (1.9m), 14s period, ESE swell with glassy winds.
  • Most powerful swell: Sunday 9 Aug, 6AM (local time) - 6ft (1.9m), 14s period, ESE swell with 1,347 kJ wave energy.
  • Next surfable swell (1★+): Sunday 9 Aug, 3AM (local time) - 6ft (1.9m), 14s period with ESE 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 Sunday (Aug 09) at 3AM. The primary swell is predicted to be 1.9m and 14s period with a secondary swell of 1.3m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mera in the next 16 days are 1.9m 14s and forecast to arrive on Sunday (Aug 09) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 12s period and expected on Saturday (Aug 15) at 9AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 9th Aug)6ft (1.9m) 14s
Best Surf 3AM (Sun 9th Aug)6ft (1.9m) 14s
Most Powerful 6AM (Sun 9th Aug)6ft (1.9m) 14s

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


Short Range Forecast

Some drizzle, heaviest during Mon night. Warm (max 27°C on Sat morning, min 22°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 36mm), heaviest during Thu night. Warm (max 28°C on Wed morning, min 25°C on Tue morning). Winds decreasing (fresh winds from the SSW on Tue morning, light winds from the ENE by Wed night).

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
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
3
4
3
4
4
4
4
0
0
0
2
1
2
2
2
3
3
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SSW
11
1.3
ESE
12
1.8
ESE
14
1.9
ESE
13
1.9
E
13
1.8
E
12
1.8
E
12
2
E
11
1.9
E
11
1.7
E
10
1.6
E
11
1.2
E
10
1.1
SW
11
1.1
SW
11
1
SSW
11
1.1
E
11
1.5
E
10
1.5
E
11
1.7
E
10
2.3
E
10
2
E
12
Wave Graph
Metric surfscale
Energy kJ
603
501
1344
1308
1226
942
900
986
835
596
595
308
273
268
238
281
452
526
620
1004
1066
Wind (km/h)
10
SSE
15
SSE
5
SSE
5
NE
10
SE
15
NE
20
NNE
15
E
15
NE
25
SSW
30
SW
35
SSW
15
E
20
ESE
10
ESE
20
NNE
20
ENE
15
ENE
20
NE
20
ENE
20
NE
Wind State
cross-on
cross
cross
off
cross
off
off
cross-off
off
on
on
cross-on
cross-off
cross-off
cross-off
off
cross-off
off
off
cross-off
off
High Tide
3:21PM1.22m
10:52PM1.37m
3:58PM1.33m
00:44AM1.39m
4:28PM1.41m
2:08AM1.46m
4:56PM1.46m
3:10AM1.54m
5:22PM1.49m
4:02AM1.60m
5:47PM1.51m
4:50AM1.61m
6:10PM1.51m
Low Tide
5:19PM1.21m
7:39AM0.25m
8:05PM1.20m
8:42AM0.13m
9:11PM1.12m
9:34AM0.04m
9:54PM1.01m
10:19AM0.00m
10:33PM0.88m
10:58AM0.02m
11:09PM0.76m
11:34AM0.10m
11:45PM0.65m
clear
clear
clear
clear
clear
part cloud
clear
clear
rain showers
part cloud
cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:54
4:54
4:56
4:56
4:56
4:58
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:36
6:35
6:34
6:32
6:31
6:30
 mm
1
1
2
5
11
1
2
14
3
2
10
Temp °C
27
27
26
27
27
25
27
27
25
26
27
27
28
27
27
27
28
27
28
28
26
Feels °C
30
28
29
30
29
27
27
28
25
24
26
25
29
28
29
28
30
29
29
29
27
  • 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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