21st Street (Miami) Surf Break

Lat Long: 25.80° N 80.13° W

21st Street (Miami) 48 hour detailed Surf Forecast

Issued: 1 pm 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's 21st Street (Miami) sea temperature is
30.5° 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 (18 Jul):

  • Morning surf: Morning surf (18 Jul, local time) - 1ft (0.3m), 3s period with SSE swell.
  • Afternoon surf: Afternoon surf (18 Jul, local time) - 2ft (0.6m), 4s period with SSE swell.
  • Evening surf: Evening surf (18 Jul, local time) - 2ft (0.6m), 4s period with SSE swell.

The current surf forecast for 21st Street (Miami) at 8PM is: 0.6m 4s primary swell from a South-southeast direction and 0.1m 8s secondary swell from a East direction, 0.1m 9s secondary swell from a Northeast direction (forecast issued at 01:00pm July 18). The wind direction is predicted to be cross-onshore.

Time (EDT) & DateWave HeightWave Period
Morning (18 Jul)1ft (0.3m)3s
Afternoon (18 Jul)2ft (0.6m)4s
Evening (18 Jul)2ft (0.6m)4s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Sat afternoon. Warm (max 30°C on Sat afternoon, min 28°C on Sun night). Wind will be generally light.

Sat
18
Sunday
19
Monday
20
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)
0.5
SE
3
0.6
SSE
4
0.7
SSE
4
0.6
SSE
4
0.5
SE
4
0.5
SE
4
0.5
SE
4
0.5
S
4
0.8
SSE
4
0.8
SSE
5
0.7
SSE
5
0.6
SSE
5
0.4
SSE
5
0.4
SSE
5
0.4
SSE
3
0.5
SSE
3
0.6
SSE
4
0.6
SSE
4
0.6
SSE
4
0.7
SE
5
0.6
SE
5
Wave Graph
Metric surfscale
Energy kJ
5
10
15
12
9
9
9
7
22
27
20
16
9
8
3
7
12
14
15
23
18
Wind (km/h)
20
SSE
20
SSE
20
SE
20
SE
20
SE
20
SE
20
SSE
20
SSE
20
SSE
20
SSE
20
SSE
15
SSE
15
SE
20
SSE
20
SSE
20
SSE
20
SSE
20
SSE
20
SSE
20
SSE
20
SE
Wind State
cross
cross
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
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
12:11PM0.81m
00:33AM0.82m
1:05PM0.77m
1:20AM0.76m
2:00PM0.73m
Low Tide
6:20PM-0.04m
6:50AM-0.05m
7:12PM0.03m
7:40AM-0.02m
8:05PM0.10m
thunderstorm
thunderstorm
part cloud
clear
part cloud
part cloud
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:13
8:13
8:12
 mm
2
1
1
Temp °C
28
30
30
29
29
29
29
29
30
29
29
29
29
28
29
29
29
30
30
29
29
Feels °C
29
31
32
31
31
31
30
30
30
29
30
31
31
29
31
30
29
31
31
31
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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