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Surf Forecasts:
21st Street (Miami) surfForecast / Florida – South / USA
48hr Weather and Surf, issued 12 am Wednesday 10 Dec 2025 ESTForecast 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
26.4° C
(Which is 1.6°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 3AM is: 1.1m 7s primary swell from a North-northeast direction and 0.1m 15s secondary swell from a Northeast direction, 1.0m 6s secondary swell from a East direction (forecast issued at 12:00am December 10). The wind direction is predicted to be onshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 3.5ft (1.0m) | 7s |
| Afternoon (10 Dec) | 3.5ft (1.1m) | 11s |
| Evening (10 Dec) | 3.5ft (1.0m) | 10s |
Table - waves today at 21st Street (Miami). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | ||||||||||||||||||||||
| 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 7 | 7 | 8 | 8 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 247 | 215 | 120 | 99 | 110 | 87 | 275 | 260 | 212 | 208 | 178 | 127 | 255 | 100 | 73 | 56 | 56 | 60 | 65 | 51 | 57 | 24 | 22 | 13 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | on | cross- on | cross- on | on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross- on | cross- on | on | on | on | on |
High Tide / height (m) | 11:59PM 0.82 | 12:34PM 0.85 | 1:03AM 0.78 | 1:30PM 0.81 | 2:07AM 0.76 | 2:26PM 0.77 | ||||||||||||||||||
Low Tide / height (m) | 6:12AM 0.09 | 6:53PM 0.13 | 7:13AM 0.15 | 7:52PM 0.14 | 8:15AM 0.19 | |||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:56 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:30 | - |
 | |  |  |  | |  | |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | 1 | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 23 | 20 | 17 | 16 | 17 | 21 | 23 | 22 | 21 | 21 | 20 | 20 | 21 | 21 | 22 | 22 |
| Feels °C (?) | 21 | 23 | 23 | 24 | 25 | 25 | 25 | 26 | 22 | 18 | 11 | 12 | 12 | 19 | 21 | 20 | 19 | 20 | 18 | 18 | 19 | 19 | 20 | 21 |
- 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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