Mera surfForecast / Chiba / Japan

information circle48hr Weather and Surf, issued 8 am Saturday 30 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
22.9° C
(Which is 1.1°C warmer than normal for this time of year)

How big are the waves at Mera today (30 May):

  • Morning surf: Morning surf (30 May, local time) - 2.5ft (0.8m), 11s period with E swell.
  • Afternoon surf: Afternoon surf (30 May, local time) - 3ft (0.9m), 11s period with E swell.
  • Evening surf: Evening surf (30 May, local time) - 3ft (0.9m), 10s period with E swell.

The current surf forecast for Mera at 1PM is: 0.9m 11s primary swell from a East direction and 0.7m 5s secondary swell from a East direction (forecast issued at 08:00am May 30). The wind direction is predicted to be cross-shore.

Time (JST) & DateWave HeightWave Period
Morning (30 May)2.5ft (0.8m)11s
Afternoon (30 May)3ft (0.9m)11s
Evening (30 May)3ft (0.9m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 23°C on Sat morning, min 19°C on Sun night). Mainly strong winds.

Saturday
30
Sunday
31
Monday
1
Tue
2
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
12 AM
3 AM
Rating
(10 max)
1
2
2
0
0
0
0
0
0
1
1
2
0
0
0
0
0
1
0
0
0
0
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
E
11
0.8
E
11
0.9
E
11
0.9
E
11
0.9
E
11
0.9
E
10
0.9
E
10
0.9
E
10
0.9
E
10
0.9
E
10
0.9
ESE
10
0.8
E
10
0.7
S
12
0.8
S
12
0.8
S
11
0.8
S
11
0.9
S
11
0.7
SSW
17
0.9
SSW
17
1.3
SSW
16
1.4
SSW
15
1.3
SSW
14
1.4
SSW
14
1.1
SW
16
Wave Graph
Metric surfscale
Energy kJ
149
146
184
184
181
174
171
171
167
161
170
125
136
171
160
154
191
258
448
848
929
687
834
617
Wind (km/h)
20
ENE
10
ENE
5
ESE
15
SSE
15
S
15
SSW
15
SSW
15
SSW
5
WSW
5
NW
10
WNW
0
W
15
SW
40
SW
35
SW
30
SW
20
WSW
10
WSW
20
SSW
20
SSW
20
SSW
20
SSW
15
SSW
15
SSW
off
off
cross-off
cross-on
cross-on
on
on
on
cross-on
glassy
cross
glassy
on
on
on
on
on
on
on
on
on
on
on
on
High Tide
5:01PM1.30m
3:17AM1.39m
5:38PM1.32m
3:49AM1.40m
6:14PM1.32m
Low Tide
9:56AM0.06m
9:58PM0.86m
10:29AM0.01m
10:36PM0.87m
11:02AM-0.00m
11:12PM0.87m
part cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:28
4:28
4:28
4:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:46
6:46
6:47
6:49
Temp °C
21
22
23
23
22
22
21
21
21
21
22
23
23
20
19
19
19
20
21
21
21
21
21
21
18
21
24
23
22
22
20
20
22
22
21
24
22
14
15
16
18
20
20
19
19
19
20
20
Swell 1
Height (m)
Direction
Period (s)
0.8
E
11
0.9
E
6
0.9
E
11
0.9
E
11
0.9
E
11
0.9
E
10
0.9
E
10
0.9
E
10
0.9
E
10
0.9
E
10
0.9
ESE
10
0.8
E
10
0.8
E
10
0.8
S
12
0.8
S
11
0.8
S
11
0.9
S
11
0.8
S
11
0.9
SSW
17
1.3
SSW
16
1.4
SSW
15
1.3
SSW
14
1.4
SSW
14
1.3
SSW
13
Energy kJ
149
50
184
184
181
174
171
171
167
161
170
125
127
171
160
154
191
146
448
848
929
687
834
586
Swell 2
Height (m)
Direction
Period (s)
0.6
SW
7
0.8
E
11
0.7
E
5
0.6
SW
7
0.4
SW
7
0.6
SSE
6
0.5
SE
6
0.4
SSE
6
0.4
SW
6
0.4
SW
6
0.5
S
13
0.6
S
12
0.7
S
12
0.8
E
10
0.7
E
10
0.7
E
10
0.7
E
10
0.7
SSW
17
0.7
S
11
0.6
E
10
0.6
E
10
0.8
SW
18
0.7
SW
18
1.1
SW
16
Energy kJ
41
146
27
30
16
24
18
11
11
14
87
106
136
125
94
100
94
258
108
66
64
383
334
617
Swell 3
Height (m)
Direction
Period (s)
0.3
S
6
0.6
SW
7
0.6
SW
7
0.5
E
4
0.4
SSE
6
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.3
SSE
6
0.3
SSE
6
0.4
SW
6
0.4
SE
6
0.3
SSW
14
0.3
SE
12
0.3
SE
12
0.2
SSW
18
0.4
SSW
17
0.7
E
10
0.7
E
10
0.3
SE
11
0.3
SE
11
0.6
E
10
0.6
E
10
0.6
E
10
Energy kJ
7
31
30
10
13
16
16
11
6
6
10
8
40
23
21
31
113
92
92
20
19
64
65
65
Wind waves
Height (m)
Direction
Period (s)
1.2
E
6
0.3
SW
2
0.3
SW
3
0.3
SW
3
0.4
WSW
6
0.8
SW
4
1.3
SW
5
1.1
SW
5
1.1
SW
5
0.9
WSW
5
0.7
WSW
5
0.5
SW
4
0.5
SW
4
Energy kJ
92
1
1
1
15
16
84
59
59
35
19
9
7
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
2
1
2
1
1
1
1
2
2
1
1
1
1
2
2
2
2
4
2
2
2
Distance (km)
0
0
0
64
64
64
64
64
64
0
12
0
36
69
61
60
36
12
64
70
80
69
61
69
Best forecast wave conditions in Chiba
Rating
(10 max)
1
2
2
2
1
2
1
1
1
2
2
2
2
2
2
2
2
2
3
3
Best forecast wave conditions in Japan
Rating
(10 max)
1
2
2
2
1
3
1
2
2
2
2
3
3
3
3
4
4
4
4
5
4
4
4
5
Header Global
Rating
(10 max)
5
5
5
5
5
5
6
8
7
7
7
7
6
6
5
5
5
5
5
5
5
4
5
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

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