21st Street (Miami) Surf Break

Lat Long: 25.80° N 80.13° W

21st Street (Miami) 48 hour detailed Surf Forecast

Issued: 1 pm 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's 21st Street (Miami) sea temperature is
30.3° C
0.7° 

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 (12 Aug):

  • Morning surf: Morning surf (12 Aug, local time) - 0.5ft (0.2m), 7s period with E swell.
  • Afternoon surf: Afternoon surf (12 Aug, local time) - 0.5ft (0.2m), 7s period with E swell.
  • Evening surf: Evening surf (12 Aug, local time) - 1.5ft (0.4m), 3s period with SE swell.

The current surf forecast for 21st Street (Miami) at 5PM is: 0.1m 9s primary swell from a Northeast direction and 0.1m 7s secondary swell from a East direction, 0.4m 3s secondary swell from a Southeast direction (forecast issued at 01:00pm August 12). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (12 Aug)0.5ft (0.2m)7s
Afternoon (12 Aug)0.5ft (0.2m)7s
Evening (12 Aug)1.5ft (0.4m)3s

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


Short Range Forecast

Moderate rain (total 19mm), heaviest on Fri night. Warm (max 30°C on Wed afternoon, min 28°C on Thu morning). Wind will be generally light.

Wed
12
Thursday
13
Friday
14
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
E
7
0.2
E
7
0.4
SE
3
0.4
SE
3
0.3
SSE
3
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.4
SE
3
0.4
SE
3
0.1
NE
10
0.4
SE
3
0.4
SE
3
0.4
SE
3
0.4
SE
4
0.4
ESE
4
0.4
ESE
4
0.4
ESE
3
0.5
E
3
Wave Graph
Metric surfscale
Energy kJ
3
3
3
3
3
3
3
3
3
3
3
3
4
3
3
4
4
5
5
3
6
Wind (km/h)
10
SSE
15
SE
15
SSE
15
S
15
SSE
10
S
10
SSW
10
S
10
SSE
15
SE
20
SE
5
ESE
15
ESE
20
SE
10
SE
10
ESE
15
ESE
15
ESE
15
E
20
ENE
25
E
Wind State
cross-on
cross-on
cross-on
cross
cross
cross
cross-off
cross
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
High Tide
8:26AM0.91m
9:01PM0.95m
9:18AM0.93m
9:47PM0.95m
10:08AM0.94m
10:31PM0.94m
Low Tide
2:43PM-0.12m
3:11AM-0.05m
3:32PM-0.11m
3:58AM-0.07m
4:19PM-0.08m
clear
clear
part cloud
thunderstorm
part cloud
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:58
7:58
7:57
 mm
2
2
1
Temp °C
30
30
30
29
29
29
29
28
29
30
30
29
29
29
28
28
29
30
30
29
29
Feels °C
34
32
32
31
31
32
32
31
32
32
32
33
32
30
31
31
32
33
33
30
30
  • 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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