21st Street (Miami) Surf Break

Lat Long: 25.80° N 80.13° W

21st Street (Miami) 48 hour detailed Surf Forecast

Issued: 1 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's 21st Street (Miami) sea temperature is
30.5°C
1.1° 

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 (04 Sep):

  • Morning surf: Morning surf (04 Sep, local time) - 1.5ft (0.4m), 6s period with E swell.
  • Afternoon surf: Afternoon surf (04 Sep, local time) - 2ft (0.6m), 5s period with ESE swell.
  • Evening surf: Evening surf (04 Sep, local time) - 1.5ft (0.5m), 4s period with ESE swell.

The current surf forecast for 21st Street (Miami) at 8AM is: 0.3m 6s primary swell from a East direction and 0.2m 8s secondary swell from a East direction (forecast issued at 01:00am September 04). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (04 Sep)1.5ft (0.4m)6s
Afternoon (04 Sep)2ft (0.6m)5s
Evening (04 Sep)1.5ft (0.5m)4s

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


Short Range Forecast

Heavy rain (total 25mm), heaviest during Sat night. Warm (max 30°C on Sat afternoon, min 28°C on Fri afternoon). Wind will be generally light.

Friday
4
Saturday
5
Sunday
6
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
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
0
0
0
Swell
Height Map
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
9
0.3
E
6
0.3
E
6
0.4
E
5
0.6
ESE
5
0.6
ESE
5
0.5
ESE
5
0.5
ESE
4
0.6
ESE
4
0.5
SE
4
0.5
SE
4
0.4
ESE
4
0.4
ESE
4
0.4
ESE
3
0.3
E
3
0.1
E
8
0.4
SE
3
0.4
SE
3
0.3
SSE
3
0.1
E
7
0.1
E
7
0.4
SE
3
0.2
E
9
0.2
E
9
Wave Graph
Metric surfscale
Energy kJ
7
6
6
8
20
18
12
10
8
6
6
5
5
5
2
1
2
3
2
1
1
2
6
6
Wind (km/h)
10
SE
5
SE
5
SE
20
SE
15
SE
15
SE
15
ESE
20
ESE
20
ESE
15
SE
15
SE
15
SSE
15
SE
15
SE
20
NE
5
ENE
10
SE
5
SE
5
SSE
5
S
10
SE
20
SE
15
SSW
10
S
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-off
cross
High Tide
1:40AM0.81m
2:44PM0.83m
2:50AM0.79m
3:57PM0.83m
4:07AM0.80m
5:09PM0.85m
Low Tide
8:09AM0.08m
8:50PM0.25m
9:21AM0.10m
10:06PM0.25m
10:35AM0.10m
part cloud
clear
clear
thunderstorm
clear
clear
clear
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
mod rain
thunderstorm
part cloud
part cloud
part cloud
clear
clear
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:01
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:36
7:34
 mm
2
1
1
1
1
7
3
4
2
Temp °C
29
29
29
29
28
29
29
29
29
29
29
29
30
30
28
28
29
29
29
30
30
30
30
29
Feels °C
32
33
34
30
30
31
32
31
31
32
32
32
33
33
29
32
33
33
34
34
32
31
32
32
  • 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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