21st Street (Miami) surfForecast / Florida – South / USA

information circle48hr Weather and Surf, issued 12 am Sunday 18 Jan 2026 EST
Forecast update in hr  min  s Forecast update imminent
21st Street (Miami) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's 21st Street (Miami) sea temperature is
23.8° C
(Which is slightly warmer than usual)


How big are the waves at 21st Street (Miami) today?

The current surf forecast for 21st Street (Miami) at 7AM is: 0.4m 6s primary swell from a Northeast direction and 0.3m 4s secondary swell from a East direction (forecast issued at 12:00am January 18). The wind direction is predicted to be cross-shore.

Time (EST) & DateWave HeightWave Period
Morning (18 Jan)1.5ft (0.4m)8s
Afternoon (18 Jan)1ft (0.3m)6s
Evening (18 Jan)3.5ft (1.0m)4s

Table - waves today at 21st Street (Miami). (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent
Sunday
18
Monday
19
Tuesday
20
10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
NNE
0.3
NNE
0.4
NNE
0.4
NE
0.4
E
0.3
E
0.3
E
0.4
E
1
N
1.1
N
1.2
N
1.3
N
1.4
N
1.5
N
1.6
NNE
1.6
NNE
1.4
NNE
1.2
NNE
1.1
NNE
1.1
NNE
1.2
NNE
1.2
NE
1.3
NNE
1.4
NE
Period(s) (?)666686684566666666665555
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1571382166214071961281531821821761421008580757990115
Wind
(km/h)
10
SE
10
SSE
5
SE
10
SSE
15
SSW
20
SW
30
W
30
NNW
30
NNW
25
NNW
30
NNW
30
NNW
30
N
30
N
25
NNE
25
NNE
25
NNE
20
NNE
20
NNE
20
NNE
25
NNE
30
NE
30
NE
35
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
crosscross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscrosscross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
7:14PM
0.67
7:56AM
0.76
7:55PM
0.69
8:33AM
0.77
8:37PM
0.71
9:09AM
0.77
Low Tide
/ height (m)
1:29AM
-0.06
2:02PM
0.05
2:09AM
-0.08
2:39PM
0.02
2:49AM
-0.08
3:17PM
-0.01
Sunday
18
Monday
19
Tuesday
20
Sunrise----7:07-------7:07-------7:07---
Sunset------5:52-------5:53-------5:53-
clear
clear
clear
part cloud
cloud
thunderstorm
rain showers
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
clear
part cloud
cloud
Rain (mm)
-----23-----------------
Temp. °C232323232325252017151210111518181817171819202020
Feels °C (?)24252525242522161210635913131313131415151514
  • 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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