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Surf Forecasts:

Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 2 pm Sunday 31 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
22.5° C
 (Which is slightly warmer than usual)

How big are the waves at Mera today (31 May):

  • Afternoon surf: Afternoon surf (31 May, local time) - 2.5ft (0.8m), 10s period with E swell.
  • Evening surf: Evening surf (31 May, local time) - 2.5ft (0.8m), 12s period with S swell.

The current surf forecast for Mera at 7PM is: 0.7m 12s primary swell from a South direction and 0.8m 10s secondary swell from a East direction, 1.1m 4s secondary swell from a Southwest direction (forecast issued at 02:00pm May 31). The wind direction is predicted to be onshore.

Time (JST) & DateWave HeightWave Period
Morning (31 May)--
Afternoon (31 May)2.5ft (0.8m)10s
Evening (31 May)2.5ft (0.8m)12s

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

Heavy rain (total 73mm), heaviest during Wed morning. Warm (max 23°C on Sun afternoon, min 19°C on Sun night). Winds increasing (light winds from the S on Mon night, near gales from the E by Wed morning).

Sun
31
Monday
1
Tuesday
2
Wed
3
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
12 AM
3 AM
6 AM
9 AM
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
2
1
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.8
ESE
10
0.8
E
10
0.7
S
12
0.8
S
12
0.8
S
11
0.8
S
11
0.8
S
11
0.7
SSW
16
0.8
SSW
16
1.1
S
15
1.1
SSW
14
1.3
SSW
14
1.2
SSW
13
1.3
SSW
13
1.2
SSW
13
1.6
SSW
14
1.5
SSW
14
1.7
SSW
13
1.4
SW
13
1.3
SSW
13
1.3
SSW
12
1.1
SW
15
1.6
SW
15
3
SE
8
Wave Graph
Metric surfscale
Energy kJ
136
128
136
171
160
154
151
229
288
537
465
631
475
586
459
996
857
1013
700
546
513
505
1011
1152
Wind (km/h)
10
NW
20
SSW
30
SW
45
SW
35
SW
25
WSW
20
SW
20
SW
25
SW
25
SSW
20
SSW
20
SSW
20
SSW
20
S
15
S
15
SSE
20
SSE
20
S
20
S
20
SSW
20
SSE
20
SE
30
SE
45
ESE
Wind State
cross
on
on
on
on
on
on
on
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
High Tide
5:38PM1.32m
3:49AM1.40m
6:14PM1.32m
4:22AM1.39m
6:50PM1.31m
4:54AM1.37m
Low Tide
10:29AM0.01m
10:36PM0.87m
11:02AM-0.00m
11:12PM0.87m
11:36AM0.00m
11:48PM0.88m
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
mod rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
4:28
—
—
—
—
—
—
—
4:28
—
—
—
—
—
—
—
4:26
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
6:46
—
—
—
—
—
—
—
6:47
—
—
—
—
—
—
—
6:49
—
—
—
—
6:49
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
3
9
16
Temp °C
23
23
23
20
20
20
19
20
21
21
21
21
21
21
21
21
21
22
21
21
20
19
20
20
Feels °C
24
22
20
14
16
18
17
19
19
18
19
19
20
20
20
20
20
21
20
20
18
18
17
15
Swell 1
Height (m)
Direction
Period (s)
0.8
ESE
10
0.8
E
10
0.8
E
10
0.8
S
12
0.8
S
11
0.8
S
11
0.8
S
11
0.7
S
11
0.8
SSW
16
1.1
S
15
1.1
SSW
14
1.3
SSW
14
1.2
SSW
13
1.3
SSW
13
1.2
SSW
13
1.6
SSW
14
1.5
SSW
14
1.7
SSW
13
1.4
SW
13
1.3
SSW
13
1.3
SSW
12
1.1
SW
13
1.6
SW
15
1.4
SW
14
Energy kJ
136
128
127
171
160
154
151
114
288
537
465
631
475
586
440
996
857
1013
700
546
513
376
1011
802
Swell 2
Height (m)
Direction
Period (s)
0.5
S
13
0.6
S
12
0.7
S
12
0.7
E
10
0.7
E
10
0.7
E
10
0.6
E
10
0.7
E
10
0.7
S
11
0.6
E
10
0.6
E
10
0.6
E
10
0.7
SW
17
0.8
SW
16
1
SW
15
0.6
E
10
0.6
E
10
0.6
E
9
0.6
E
9
0.6
SW
17
0.7
SW
16
1.1
SW
15
0.9
SW
17
0.9
WSW
18
Energy kJ
87
106
136
96
94
100
68
92
110
66
70
66
302
326
459
64
64
62
61
227
267
505
400
541
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
6
0.3
SSW
14
0.3
SSW
14
0.3
SE
12
0.3
SE
12
0.1
SW
18
0.4
SW
17
0.7
SSW
16
0.6
E
10
0.3
SE
11
0.3
SE
11
0.3
SE
11
0.6
E
10
0.6
E
10
0.6
E
10
0.3
SE
12
0.3
SE
11
0.3
SE
12
0.3
SE
12
0.6
E
9
0.6
E
9
0.6
E
9
—
—
Energy kJ
10
41
40
22
22
13
72
229
68
20
19
20
65
65
65
21
20
21
21
61
60
60
—
—
Wind waves
Height (m)
Direction
Period (s)
—
0.5
S
6
0.9
SW
4
1.6
SW
6
1.4
SW
6
1.3
SSW
6
1
SSW
5
0.8
SW
6
0.6
SW
5
0.6
SW
5
0.5
S
4
—
—
—
—
—
0.7
SSE
4
—
0.9
SSE
5
0.9
SSE
5
1.1
SE
6
1.3
SSE
6
2.3
SE
7
3
SE
8
Energy kJ
—
18
24
150
128
101
58
38
22
16
6
—
—
—
—
—
15
—
42
51
72
108
465
1152
Nearest Offshore or Glassy
Chikura
Chiba
Ohara
Chiba
Shida
Chiba
Takegashima
Shikoku
Hanamizu River
Kanagawa
Shonan
Kanagawa
Uraga Point
Kanagawa
Uraga Point
Kanagawa
Shida
Chiba
Hashikui Bay
Shikoku
Kisami-Ohama Beach
Shizuoka
Shida
Chiba
Sakawa River
Kanagawa
Ohara
Chiba
Chigasaki Jetty
Kanagawa
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Keta Reef Oshima
Izu Islands
Ohara
Chiba
Ohara
Chiba
Keta Reef Oshima
Izu Islands
Ohara
Chiba
Kodogawa
Kyu Shu
Kodogawa
Kyu Shu
Rating
(10 max)
2
1
2
2
1
1
2
2
2
4
3
2
2
2
2
2
2
2
2
2
2
2
4
4
Distance (km)
12
64
70
529
69
59
36
36
70
504
88
70
73
64
61
47
47
47
64
64
47
64
804
804
Best forecast wave conditions in Chiba
Amatu
Shida
Tsurigasaki Surfing Beach (Tokyo 2020)
Tsurigasaki Surfing Beach (Tokyo 2020)
Torami
Torami
Shida
Shida
Shida
Tsurigasaki Surfing Beach (Tokyo 2020)
Shida
Shida
Shida
Shida
Shida
Shida
Shida
Rating
(10 max)
2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Best forecast wave conditions in Japan
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Tsurigasaki Surfing Beach (Tokyo 2020)
Chiba
Takegashima
Shikoku
Takegashima
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Niijima - Habushiura
Izu Islands
Nagata
Kyu Shu
Yasuda Rivermouth
Shikoku
Takegashima
Shikoku
Takegashima
Shikoku
Niyodo Rivermouth
Shikoku
Niyodo Rivermouth
Shikoku
Omaezaki
Shizuoka
Niyodo Rivermouth
Shikoku
Omaezaki
Shizuoka
Keta Reef Oshima
Izu Islands
Balls Bowls
Okinawa
Omaezaki
Shizuoka
Keta Reef Oshima
Izu Islands
Tengan
Okinawa
Unnamed
Kyu Shu
Kojima
Kyu Shu
Rating
(10 max)
2
3
2
2
3
4
3
3
4
4
4
4
4
4
4
4
4
2
3
4
2
3
6
4
Header Global
Haapiti
French Polynesia
Haapiti
French Polynesia
Fare Left
French Polynesia
Haapiti
French Polynesia
Cathedral Rock
Australia
Easter Reef
Australia
Fare Left
French Polynesia
Fare Left
French Polynesia
Fare Left
French Polynesia
Haapiti
French Polynesia
Maraa
French Polynesia
Ahijedero
Mexico
Fairway Reef
New Zealand
Steep Point
Australia
Taupo Bay
New Zealand
Clark Island
New Zealand
Clark Island
New Zealand
Ahijedero
Mexico
Clark Island
New Zealand
Ahijedero
Mexico
Viri Inga O Tuki
Chile
Arataki
New Zealand
Arataki
New Zealand
Viri Inga O Tuki
Chile
Rating
(10 max)
7
7
6
6
5
5
5
5
5
5
5
4
5
5
5
8
5
4
5
4
6
4
4
5
  • 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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