Mera surfForecast / Chiba / Japan

information circle12 Day Weather and Surf, issued 2 pm Friday 28 Nov 2025 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
22.9° C
(Which is 2.3°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Mera this week:

The surf forecast for Mera over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 29) at 9AM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.6m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mera in the next 12 days are 4.0m 9s and forecast to arrive on Wednesday (Dec 03) 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 0.9m 4s period and expected on Saturday (Nov 29) at 3AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sat 29th Nov)1.5ft (0.4m) 11s
Best Surf 9AM (Sat 29th Nov)1.5ft (0.4m) 11s
Most Powerful 6PM (Wed 3rd Dec)13ft (4.0m) 9s

Table - best surf conditions forecast for Mera over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Sat afternoon. Very mild (max 19°C on Mon morning, min 12°C on Fri night). Winds increasing (calm on Sun afternoon, strong winds from the SW by Mon morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Mon afternoon, min 7°C on Wed night). Winds increasing (light winds from the NW on Mon night, severe gales from the WSW by Wed afternoon).

Fri
28
Saturday
29
Sunday
30
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
4
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
3
WSW
1.1
SW
0.4
ESE
0.4
SE
0.9
ESE
0.4
SE
0.6
SW
1
WSW
1.2
WSW
1.4
SW
1.7
WSW
1.5
WSW
1.7
WSW
2.3
WSW
3
WSW
4
WSW
3.5
WSW
1.2
WSW
1
WSW
0.8
WSW
0.8
WSW
Period(s) (?)881111511555566678888884
Wave
Graph
(?)Metric surfscale
Energy kJ (?)112815445344729215859106170129168446879191214462021407216
Wind
(km/h)
5
NE
35
NNE
25
NNE
15
NE
15
NNW
15
WNW
5
NW
10
WSW
40
WSW
40
SW
30
WSW
10
WNW
25
WSW
45
WSW
55
WSW
75
WSW
60
W
30
NW
15
SW
30
WSW
15
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
off
offoffcross-
off
cross-
on
crosscross-
on
ononcross-
on
crosscross-
on
oncross-
on
oncross-
on
crossoncross-
on
cross-
on
High Tide
/ height (m)
9:13PM
1.11
11:48AM
1.25
11:24PM
1.08
12:28PM
1.30
1:11AM
1.16
1:05PM
1.36
2:29AM
1.27
1:41PM
1.42
3:32AM
1.38
2:17PM
1.49
4:27AM
1.46
2:54PM
1.54
5:18AM
1.50
Low Tide
/ height (m)
4:34PM
0.93
4:27AM
0.49
6:03PM
0.78
5:40AM
0.60
7:05PM
0.58
6:50AM
0.70
7:55PM
0.37
7:52AM
0.79
8:40PM
0.16
8:46AM
0.87
9:23PM
-0.01
9:34AM
0.93
10:07PM
-0.14
10:19AM
0.98
Fri
28
Saturday
29
Sunday
30
Monday
01
Tuesday
02
Wednesday
03
Thursday
04
Sunrise--6:26--6:28--6:28--6:28--6:30--6:31--6:31
Sunset4:30--4:29--4:29--4:29--4:29--4:29--4:29--
clear
part cloud
cloud
light rain
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
Rain (mm)
---2-----------------
Temp. °C1816121415141417191919171918151299111111
Feels °C (?)16861114111211121111131393-5-51545
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mera surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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 12 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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