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Surf Forecasts:

21st Street (Miami) surfForecast / Florida – South / USA

information circle16 Day Weather and Surf, issued 1 am Sunday 15 Mar 2026 EDT
Forecast update in hr  min  s Forecast update imminent
21st Street (Miami) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's 21st Street (Miami) sea temperature is
25.4° C
 (Which is 1.8°C warmer than normal for this time of year)

Best Forecast Surf Conditions for 21st Street (Miami) this week:

The most powerful waves expected at 21st Street (Miami) in the next 16 days are 2.2m 7s and forecast to arrive on Friday (Mar 20) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Sunday (Mar 15) at 8PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Fri 20th Mar)7ft (2.2m) 7s

Table - best surf conditions forecast for 21st Street (Miami) over the next 16 days.

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 13mm), heaviest on Mon night. Warm (max 28°C on Mon night, min 19°C on Tue night). Mainly fresh winds.

Days 3-6 Weather Summary Heavy rain (total 100mm), heaviest during Thu night. Warm (max 22°C on Wed night, min 19°C on Thu night). Mainly fresh winds.

Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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
See all maps
Wave Height (m) & direction (?)
1
SSE
0.9
SSE
1.1
SE
1.2
S
1.2
S
0.3
E
1.1
N
1.5
NNE
1.7
NNE
2
NE
1.7
NE
2.2
NE
1.7
NNE
1.7
NNE
1.9
NE
2.1
NE
1.6
NE
1.2
NE
1.1
NE
1
NE
1
NE
Period(s) (?)555667566667767876889
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4847619491854155253307217424261246396505289105167125162
Wind
(km/h)
25
SSE
20
S
30
SSE
30
S
30
SSW
20
W
25
N
30
NNE
30
NE
35
ENE
25
NE
30
NE
25
NE
35
NNE
40
NNE
35
NNE
35
NNE
25
NNE
25
N
30
NE
25
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		cross-
on		crosscross-
off		offcrosscrosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscross-
on		cross-
on
High Tide
/ height (m)
6:41PM
0.66
7:13AM
0.72
7:27PM
0.73
7:52AM
0.77
8:11PM
0.80
8:30AM
0.80
8:54PM
0.85
9:09AM
0.83
9:37PM
0.88
9:48AM
0.84
10:21PM
0.89
10:30AM
0.84
11:08PM
0.88
Low Tide
/ height (m)
12:39PM
0.09
12:56AM
-0.01
1:21PM
0.02
1:40AM
-0.05
2:01PM
-0.05
2:22AM
-0.08
2:40PM
-0.11
3:04AM
-0.09
3:20PM
-0.16
3:46AM
-0.09
4:02PM
-0.18
4:29AM
-0.08
4:46PM
-0.18
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunrise7:30--7:28--7:28--7:26--7:24--7:24--7:22--
Sunset-7:29--7:29--7:30--7:30--7:30--7:30--7:31-
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
rain showers
cloud
cloud
cloud
light rain
heavy rain
heavy rain
heavy rain
thunderstorm
rain showers
rain showers
part cloud
part cloud
thunderstorm
thunderstorm
Rain (mm)
1311142---51615194221--25
Temp. °C252525262728202020212122222121222222212322
Feels °C (?)242325242527171615161820201918171616171919
  • 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

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View detailed surf forecast for 21st Street (Miami) at:
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Information about the 21st Street (Miami) Surf forecast

The above surf forecast table for 21st Street (Miami) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 21st Street (Miami) can be found by selecting the local surf guide option on the grey menu. Our 21st Street (Miami) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (21st Street (Miami)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for 21st Street (Miami) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

21st Street (Miami) is 1 km (1 miles) from the city of Miami Beach. If you plan a vacation in South Florida, look for hotels and other accommodation in Miami Beach. Miami Beach has rooms for a wide range of budgets as well as car hire and transport links.

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