Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 am Wednesday 20 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
20.9° C
 (Which is normal for this time of year)

How big are the waves at Mera today?

The current surf forecast for Mera at 7AM is: 0.9m 10s primary swell from a East-southeast direction and 0.8m 4s secondary swell from a South-southwest direction (forecast issued at 02:00am May 20). An open ocean swell of 0.1m 9s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (20 May)3ft (0.9m)10s
Afternoon (20 May)3.5ft (1.0m)10s
Evening (20 May)3ft (0.9m)10s

Table - waves today at Mera. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast

Moderate rain (total 15mm), heaviest on Thu night. Warm (max 22°C on Wed night, min 14°C on Fri afternoon). Mainly strong winds.

Wednesday
20
Thursday
21
Friday
22
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.8
SE
10
1.1
SE
10
0.9
ESE
10
0.9
ESE
10
1
SE
10
1
SE
10
1
SE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
2.1
SSW
6
2.2
SSW
7
3
SW
7
2.4
SW
7
2.1
SW
7
1.5
SSW
8
1.2
SSW
7
1.1
S
7
1.3
SSW
8
1.1
SW
8
0.9
SSW
8
0.6
SW
8
0.5
SW
8
Wave Graph
Metric surfscale
Energy kJ
136
229
175
171
192
188
181
157
157
142
145
361
453
808
612
492
234
156
124
203
140
103
51
35
Wind (km/h)
25
SSW
30
SW
25
SW
25
SW
30
SW
30
SSW
30
SW
30
SW
25
SW
25
SW
25
SSW
30
SW
40
SW
45
SW
45
SW
20
WSW
25
NNE
35
NNE
40
N
45
N
45
NNE
45
NNE
45
NNE
45
NNE
Wind State
on
on
on
on
on
on
on
on
on
on
on
on
on
on
on
cross-on
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
High Tide
5:28AM1.45m
8:25PM1.29m
6:11AM1.37m
9:21PM1.22m
7:00AM1.27m
Low Tide
00:19AM0.94m
12:59PM-0.13m
1:04AM0.96m
1:49PM-0.01m
1:57AM0.95m
2:43PM0.14m
cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
cloud
part cloud
cloud
cloud
rain showers
light rain
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
4:33
—
—
—
—
—
—
—
4:33
—
—
—
—
—
—
—
4:33
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
6:39
—
—
—
—
—
—
—
6:39
—
—
—
—
—
—
—
6:40
—
 mm
—
—
—
—
—
—
—
—
—
—
—
1
1
—
1
3
3
1
1
2
1
1
—
—
Temp °C
20
20
20
20
21
21
21
21
22
22
22
22
22
22
22
20
18
16
16
15
15
14
15
15
Feels °C
18
18
18
18
19
18
19
19
22
21
21
20
18
17
17
19
15
11
10
7
7
6
7
7
Swell 1
Height (m)
Direction
Period (s)
0.8
SE
10
1.1
SE
10
0.9
ESE
10
0.9
ESE
10
1
SE
10
1
SE
10
1
SE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.9
ESE
10
0.8
ESE
10
0.8
ESE
10
0.7
ESE
10
0.7
ESE
10
0.6
ESE
10
1.5
SSW
8
1.2
SSW
7
1.1
S
7
1.3
SSW
8
1.1
SW
8
0.9
SSW
8
0.6
SW
8
0.5
SW
8
Energy kJ
136
229
175
171
192
188
181
157
157
142
145
103
105
83
83
74
234
156
124
203
140
103
51
35
Swell 2
Height (m)
Direction
Period (s)
0.6
E
10
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.1
NE
9
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
E
8
1.1
WSW
8
1
WSW
8
0.9
WSW
8
0.5
ESE
9
0.5
ESE
10
0.4
ESE
10
0.4
SSE
7
0.4
SSE
6
Energy kJ
77
3
3
3
3
3
3
3
3
3
2
2
2
2
2
1
153
136
114
50
54
38
15
14
Swell 3
Height (m)
Direction
Period (s)
0.1
NE
9
0.3
NE
9
0.3
NE
9
—
—
—
—
—
—
—
—
—
—
0.1
NE
12
—
0.1
E
11
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
—
—
—
0.1
NW
7
0.3
SSW
7
Energy kJ
3
13
13
—
—
—
—
—
—
—
—
—
—
5
—
2
54
52
54
—
—
—
2
10
Wind waves
Height (m)
Direction
Period (s)
0.6
SW
3
0.7
SW
4
0.9
SSW
4
0.8
SSW
4
0.7
SW
4
0.7
SW
4
0.6
SW
4
0.6
SW
4
0.7
SSW
4
0.9
SSW
5
1.2
S
6
2.1
SSW
6
2.2
SSW
7
3
SW
7
2.4
SW
7
2.1
SW
7
—
0.6
NNE
3
1.1
NE
5
1.3
NE
7
1.7
NE
7
2.1
NE
6
2.4
NE
8
2.4
NE
9
Energy kJ
7
13
25
21
15
14
12
11
13
37
89
361
453
808
612
492
—
6
58
159
301
278
800
926
Nearest Offshore or Glassy
Sakawa River
Kanagawa
Sakawa River
Kanagawa
Sakawa River
Kanagawa
Kaiser's (Hachijojima Island)
Izu Islands
Kaiser's (Hachijojima Island)
Izu Islands
Kaiser's (Hachijojima Island)
Izu Islands
Kisami-Ohama Beach
Shizuoka
Sakawa River
Kanagawa
Sakawa River
Kanagawa
Shimoda Yamatoken (Tatado Hama)
Shizuoka
Kisami-Ohama Beach
Shizuoka
Choshi
Chiba
Choshi
Chiba
Chigasaki Jetty
Kanagawa
Uraga Point
Kanagawa
Kamogawa
Chiba
Niijima - Awaii
Izu Islands
Susuki
Shizuoka
Gomoda
Shikoku
Gomoda
Shikoku
Teba Shima
Shikoku
Nunoshima
Shikoku
Tainohama
Shikoku
Yasuda Rivermouth
Shikoku
Rating
(10 max)
1
1
1
2
2
2
1
1
1
1
1
1
1
2
3
3
3
1
2
1
1
1
1
1
Distance (km)
73
73
73
204
204
204
88
73
73
87
88
125
125
61
36
33
77
153
483
483
517
500
501
563
Best forecast wave conditions in Chiba
Choshi
Choshi
Katagai
Katagai
Malibu
Rating
(10 max)
1
1
2
3
3
Best forecast wave conditions in Japan
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Kaiser's (Hachijojima Island)
Izu Islands
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Takegashima
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Takegashima
Shikoku
Ko-Chan (Hedo Point)
Okinawa
Katagai
Chiba
Katagai
Chiba
Malibu
Chiba
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Nunoshima
Shikoku
Kaifu Rivermouth
Shikoku
Yonabaru
Okinawa
Rating
(10 max)
1
1
2
2
2
2
2
1
2
2
2
2
2
2
3
3
4
4
2
2
2
1
1
1
Header Global
Bali Village
Indonesia
Bali Village
Indonesia
Afife
Portugal
Cavalos de Fao
Portugal
Cavalos de Fao
Portugal
Crazy Left
Portugal
Achadas Da Cruz
Portugal
Anglet - Corsaires
France
Anglet - La Barre
France
Trial Harbour
Australia
Trial Harbour
Australia
Afife
Portugal
Anglet - Corsaires
France
Lambe Lambe
Brazil
Lambe Lambe
Brazil
Balimbing
Indonesia
Bali Village
Indonesia
Otago Peninsula - Allans Beach
New Zealand
Otago Peninsula - Allans Beach
New Zealand
Itaúna
Brazil
Itaúna
Brazil
Itaúna
Brazil
Trial Harbour
Australia
Trial Harbour
Australia
Rating
(10 max)
4
4
4
5
5
5
4
4
4
5
5
4
4
5
5
4
4
4
4
5
5
5
7
8
  • 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

Latest Updates

Read more

FREE! Surf-Forecast.com widget for your website

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.

View detailed surf forecast for Mera at:
surf-forecast.com

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest