21st Street (Miami) Surf Break

Lat Long: 25.80° N 80.13° W

21st Street (Miami) 48 hour detailed Surf Forecast

Issued: 7 pm 24 Sep 2026 (local time)

Forecast update in  hr  min

Today's 21st Street (Miami) sea temperature is
30.0°C
1.2° 

21st Street (Miami) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at 21st Street (Miami) today (25 Sep):

  • Morning surf: Morning surf (25 Sep, local time) - 5.5ft (1.7m), 11s period with NNE swell.
  • Afternoon surf: Afternoon surf (25 Sep, local time) - 6.5ft (2.0m), 12s period with NNE swell.
  • Evening surf: Evening surf (25 Sep, local time) - 6.5ft (2.0m), 12s period with NNE swell.

The current surf forecast for 21st Street (Miami) at 3AM is: 1.4m 12s primary swell from a North-northeast direction and 0.9m 11s secondary swell from a North-northeast direction (forecast issued at 07:00pm September 24). The wind direction is predicted to be cross-offshore.

Time (EDT) & DateWave HeightWave Period
Morning (25 Sep)5.5ft (1.7m)11s
Afternoon (25 Sep)6.5ft (2.0m)12s
Evening (25 Sep)6.5ft (2.0m)12s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Thu night. Warm (max 29°C on Thu night, min 26°C on Thu night). Wind will be generally light.

Thu
24
Friday
25
Saturday
26
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
1
2
2
2
2
0
0
0
1
1
1
1
2
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
N
8
0.7
NNE
8
1
N
8
1.4
NNE
12
1.6
NNE
11
1.7
NNE
11
1.8
NNE
11
1.9
NNE
12
2.1
NNE
12
2.1
NNE
12
2
NNE
12
1.9
NNE
12
1.9
NNE
12
1.8
NNE
12
1.7
NNE
12
1.7
NNE
12
1.7
NNE
12
1.7
NNE
12
1.7
NNE
12
Wave Graph
Metric surfscale
Energy kJ
34
63
121
488
615
718
785
1001
1200
1200
1077
980
980
889
789
789
802
871
871
Wind (km/h)
5
NE
10
NNE
15
N
20
NNW
20
N
20
NNW
25
N
25
NNE
25
NNE
25
NNE
25
NNE
20
NNE
20
NNE
15
N
15
NNE
10
E
15
ENE
20
NE
20
NE
Wind State
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
on
on
cross-on
cross-on
High Tide
7:34PM0.92m
7:54AM0.96m
8:11PM0.96m
8:35AM1.01m
8:47PM0.98m
Low Tide
1:43AM0.15m
2:04PM0.14m
2:20AM0.09m
2:43PM0.12m
cloud
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
7:09
—
—
—
—
—
—
—
7:09
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
—
—
—
—
—
—
—
7:14
—
—
—
—
—
—
—
7:12
—
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 mm
—
1
2
1
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
Temp °C
30
29
28
27
26
26
28
29
28
28
27
27
27
26
27
28
28
27
26
Feels °C
34
32
30
29
27
27
28
28
27
27
26
27
28
26
28
29
28
27
26
  • 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
How to use the Wavefinder 

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