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Surf Forecasts:

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

information circle12 Day Weather and Surf, issued 7 am Thursday 12 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
25.2° C
 (Which is 1.6°C warmer than normal for this time of year)

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

The surf forecast for 21st Street (Miami) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Mar 19) at 11AM. The primary swell is predicted to be 3.0m and 8s period with a secondary swell of 0.4m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at 21st Street (Miami) in the next 12 days are 3.0m 8s and forecast to arrive on Thursday (Mar 19) at 11AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Monday (Mar 16) at 11PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)11AM (Thu 19th Mar)10ft (3.0m) 8s
Best Surf11AM (Thu 19th Mar)10ft (3.0m) 8s
Most Powerful11AM (Thu 19th Mar)10ft (3.0m) 8s

Table - best surf conditions forecast for 21st Street (Miami) over the next 12 days.

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

Short Range Forecast Light rain (total 8mm), mostly falling on Sat night. Warm (max 27°C on Thu night, min 24°C on Thu morning). Winds decreasing (fresh winds from the S on Thu afternoon, light winds from the SE by Fri night).

Days 3-6 Weather Summary Heavy rain (total 24mm), heaviest during Tue afternoon. Warm (max 27°C on Mon afternoon, min 20°C on Tue afternoon). Winds increasing (light winds from the SW on Mon night, strong winds from the NE by Tue night).

Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
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 (?)
0.3
E
0.8
SSE
0.3
E
1.4
NNE
1.4
NNE
1.4
NNE
1.1
NNE
0.9
NNE
0.8
NNE
0.9
SE
1.1
SE
1.1
SE
1.3
SSE
1.3
SSE
0.4
E
0.9
NNE
2.2
N
2.3
NNE
2.2
NE
2.5
NE
2.3
NE
Period(s) (?)848678888555667478778
Wave
Graph
(?)Metric surfscale
Energy kJ (?)14221215020825616198723660661131211531453576466679634
Wind
(km/h)
20
S
30
S
15
NW
15
ENE
10
ESE
10
SE
15
SE
25
SE
20
SE
30
SE
25
SSE
25
SSE
30
SSE
30
S
15
SW
25
WSW
35
N
40
NE
30
ENE
20
E
20
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off		oncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		crosscrosscross-
off		cross-
off		crosscross-
on		cross-
on		oncross-
on
High Tide
/ height (m)
3:39PM
0.53
4:47AM
0.59
4:49PM
0.55
5:43AM
0.63
5:50PM
0.60
6:31AM
0.67
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
Low Tide
/ height (m)
9:49AM
0.21
10:07PM
0.09
10:56AM
0.19
11:11PM
0.07
11:52AM
0.15
12:07AM
0.04
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
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Sunrise7:33--7:31--7:31--7:30--7:28--7:28--7:26--
Sunset-7:27--7:28--7:28--7:29--7:29--7:30--7:30-
part cloud
part cloud
clear
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
rain showers
thunderstorm
mod rain
light rain
thunderstorm
mod rain
thunderstorm
Rain (mm)
----21113-2-1181744919
Temp. °C252627242525252525252525252726252321222222
Feels °C (?)252526242727262626242424242525242217182023
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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 12 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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