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21st Street (Miami) Surf Forecast
/ Florida – South (39 breaks) / Florida (155 breaks) /
Surf Forecasts:
21st Street (Miami) surfForecast / Florida – South / USA
48hr Weather and Surf, issued 7 pm Tuesday 31 Mar 2026 EDTForecast 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
25.6° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at 21st Street (Miami) today?
The current surf forecast for 21st Street (Miami) at 11PM is: 1.2m 5s primary swell from a East direction and 0.6m 9s secondary swell from a Northeast direction (forecast issued at 07:00pm March 31). An open ocean swell of 0.2m 6s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Mar) | - | - |
| Afternoon (31 Mar) | 4.5ft (1.4m) | 9s |
| Evening (31 Mar) | 4.5ft (1.4m) | 9s |
Table - waves today at 21st Street (Miami). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 31 | Wednesday 01 | Thursday 02 | Friday 03 | |||||||||||||||||||||
| 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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 5 | 9 | 5 | 5 | 5 | 9 | 9 | 9 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 5 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 286 | 301 | 78 | 64 | 93 | 64 | 64 | 62 | 62 | 53 | 73 | 71 | 86 | 108 | 157 | 144 | 110 | 123 | 114 | 144 | 193 | 237 | 273 | 225 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 8:23PM 0.84 | 8:36AM 0.82 | 9:03PM 0.85 | 9:12AM 0.81 | 9:42PM 0.85 | 9:47AM 0.79 | ||||||||||||||||||
Low Tide / height (m) | 2:09PM -0.08 | 2:32AM -0.04 | 2:47PM -0.10 | 3:11AM -0.03 | 3:24PM -0.10 | 3:48AM -0.00 | ||||||||||||||||||
Tuesday 31 | Wednesday 01 | Thursday 02 | Friday 03 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:11 | - | - | - | - | - | - | - | 7:09 | - | - |
| Sunset | 7:36 | - | - | - | - | - | - | - | 7:37 | - | - | - | - | - | - | - | 7:37 | - | - | - | - | - | - | - |
 |  |  | | |  |  | | | | |  | |  | | | | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | 1 | 1 | - | - | - | - |
| Temp. °C | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 23 | 24 | 24 | 24 | 24 |
| Feels °C (?) | 21 | 20 | 21 | 21 | 20 | 20 | 21 | 20 | 20 | 20 | 20 | 21 | 22 | 20 | 20 | 21 | 22 | 22 | 22 | 20 | 22 | 21 | 21 | 21 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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