21st Street (Miami) Surf Break

Lat Long: 25.80° N 80.13° W

21st Street (Miami) 48 hour detailed Surf Forecast

Issued: 1 pm 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's 21st Street (Miami) sea temperature is
30.3°C
1.4° 

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 (21 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 0.5ft (0.2m), 8s period with E swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 0.5ft (0.2m), 7s period with NNE swell.
  • Evening surf: Evening surf (21 Sep, local time) - 0.5ft (0.2m), 7s period with NNE swell.

The current surf forecast for 21st Street (Miami) at 7PM is: 0.2m 7s primary swell from a North-northeast direction (forecast issued at 01:00pm September 21). The wind direction is predicted to be cross-shore.

Time (EDT) & DateWave HeightWave Period
Morning (21 Sep)0.5ft (0.2m)8s
Afternoon (21 Sep)0.5ft (0.2m)7s
Evening (21 Sep)0.5ft (0.2m)7s

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


Short Range Forecast

Heavy rain (total 44mm), heaviest during Mon afternoon. Warm (max 29°C on Tue afternoon, min 24°C on Wed afternoon). Wind will be generally light.

Mon
21
Tuesday
22
Wednesday
23
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
NNE
7
0.2
NNE
7
0.2
NNE
7
0.2
NNE
7
0.2
NNE
9
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
8
0.4
NE
7
0.4
NE
7
0.4
NE
7
0.4
NE
7
0.6
S
5
0.5
S
5
0.3
NE
7
0.3
NE
7
0.3
NE
7
0.6
SE
4
0.9
SE
4
0.8
SE
4
Wave Graph
Metric surfscale
Energy kJ
5
5
5
5
8
18
17
15
14
15
14
13
13
16
11
8
8
7
10
22
21
Wind (km/h)
5
SW
20
SW
5
WSW
10
SE
10
SE
15
SSE
15
SSE
15
SSE
15
SSE
15
SSW
15
S
15
S
20
SSE
10
SSE
10
S
5
WSW
0
SSW
10
SSE
20
SE
20
SE
15
SE
Wind State
glassy
cross-off
off
cross-on
cross-on
cross
cross
cross-on
cross
cross-off
cross
cross
cross
cross-on
cross
off
glassy
cross
cross-on
cross-on
cross-on
High Tide
5:29PM0.80m
5:39AM0.77m
6:16PM0.84m
6:29AM0.84m
6:57PM0.88m
Low Tide
10:59AM0.27m
11:40PM0.33m
11:54AM0.24m
00:26AM0.27m
12:41PM0.20m
thunderstorm
mod rain
thunderstorm
cloud
thunderstorm
clear
clear
part cloud
thunderstorm
thunderstorm
cloud
thunderstorm
mod rain
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
light rain
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:17
7:16
7:15
 mm
2
6
5
2
1
1
2
6
1
1
1
2
3
3
1
Temp °C
28
27
26
27
28
28
28
28
28
28
29
28
26
27
27
27
27
27
24
24
25
Feels °C
32
28
29
30
30
29
30
30
30
30
30
30
27
30
30
30
31
29
25
25
27
  • 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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