Surf Break

Lat Long: 34.90° N 139.84° E

Mera Surf Forecast and Surf Report

Issued: 2 am 10 Oct 2026 (local time)

Forecast update in  hr  min

Today's Mera sea temperature is
25.3°C
1.2° 

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


Mera surf forecast from 9 Oct 2026:

  • Best quality surf: Saturday 10 Oct, 9AM (local time) - 6ft (1.8m), 13s period, ESE swell with offshore winds.
  • Most powerful swell: Saturday 10 Oct, 9PM (local time) - 8ft (2.5m), 12s period, ESE swell with 1,778 kJ wave energy.
  • Next surfable swell (1★+): Saturday 10 Oct, 9AM (local time) - 6ft (1.8m), 13s 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 Saturday (Oct 10) at 9AM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 1.2m and 7s. 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 12s and forecast to arrive on Saturday (Oct 10) 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 2.3m 9s period and expected on Tuesday (Oct 13) at 12AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sat 10th Oct)6ft (1.8m) 13s
Best Surf 9AM (Sat 10th Oct)6ft (1.8m) 13s
Most Powerful 9PM (Sat 10th Oct)8ft (2.5m) 12s

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


Short Range Forecast

Mostly dry. Warm (max 23°C on Sat afternoon, min 18°C on Mon night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Wed afternoon. Warm (max 23°C on Tue afternoon, min 18°C on Wed night). Winds increasing (light winds from the NNE on Tue night, strong winds from the SW by Wed afternoon).

Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
4
3
4
3
4
4
1
1
3
3
0
0
0
0
2
0
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
ESE
13
2.4
ESE
12
2.5
ESE
11
2.5
ESE
11
2.3
E
11
1.5
SE
16
1.6
SE
14
1.6
SE
14
1.6
SE
14
1.7
SE
13
1.5
SE
12
1.2
ESE
11
1.1
ESE
10
1
ESE
9
1.2
E
9
0.2
WSW
6
2
E
9
0.4
ESE
9
1.1
E
11
0.4
ESE
8
0.4
ESE
8
Wave Graph
Metric surfscale
Energy kJ
1127
1659
1688
1400
1201
1096
943
865
947
976
635
300
218
189
225
3
586
29
286
25
26
Wind (km/h)
20
NNE
20
NE
25
NNE
25
NNE
15
NE
20
NNE
25
NNE
25
NE
25
NNE
25
NNE
15
NNE
5
NNE
30
SW
45
SW
35
NE
30
NE
25
ENE
10
SE
10
WNW
5
WSW
15
NE
Wind State
off
off
off
cross-off
off
cross-off
off
off
cross-off
cross-off
off
off
on
on
off
off
cross-off
cross
cross-on
on
off
High Tide
4:03PM1.52m
4:45AM1.53m
4:22PM1.56m
5:25AM1.52m
4:43PM1.57m
6:03AM1.47m
5:03PM1.57m
6:41AM1.41m
5:25PM1.54m
7:22AM1.33m
5:47PM1.48m
8:09AM1.24m
6:10PM1.42m
Low Tide
10:03AM0.50m
10:22PM0.30m
10:33AM0.59m
10:53PM0.20m
11:01AM0.68m
11:24PM0.16m
11:29AM0.77m
11:55PM0.16m
11:56AM0.85m
00:27AM0.20m
12:22PM0.92m
1:01AM0.26m
12:49PM0.98m
1:41AM0.35m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
thunderstorm
cloud
part cloud
rain showers
clear
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
—
—
5:41
—
—
5:43
—
—
5:43
—
—
5:43
—
—
5:45
—
—
5:46
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
5:13
—
—
5:12
—
—
5:10
—
—
5:08
—
—
5:07
—
—
5:07
—
—
5:05
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
—
—
2
—
—
—
Temp °C
22
23
21
22
23
21
22
23
20
22
23
21
23
23
23
18
20
21
21
21
22
Feels °C
19
20
19
20
21
19
19
20
17
19
22
21
19
18
22
13
17
20
21
21
21
  • 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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