Surf Forecasts:
How big are the waves at 21st Street (Miami) today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 0.5ft (0.2m), 8s period with E swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 0.5ft (0.2m), 9s period with E swell.
- Evening surf: Evening surf (18 Aug, local time) - 0.5ft (0.2m), 10s period with E swell.
The current surf forecast for 21st Street (Miami) at 4AM is: 0.2m 8s primary swell from a East direction (forecast issued at 07:00pm August 17). An open ocean swell of 0.3m 3s is not directed at the surf break, a second open ocean swell of 0.2m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 0.5ft (0.2m) | 8s |
| Afternoon (18 Aug) | 0.5ft (0.2m) | 9s |
| Evening (18 Aug) | 0.5ft (0.2m) | 10s |
Table - waves today at 21st Street (Miami). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Thu morning. Warm (max 33°C on Tue afternoon, min 29°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 5 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 6 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | off | cross-off | cross-off | glassy | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | on | cross-on | cross | cross-off |
High Tide | 00:37AM0.80m | 1:19PM0.78m | 1:22AM0.74m | 2:12PM0.74m | |||||||||||||||
Low Tide | 6:35PM0.11m | 6:57AM0.04m | 7:22PM0.18m | 7:44AM0.09m | 8:14PM0.24m | ||||||||||||||
 |  | | | | | | | | | | | | | | | |  | | |
 | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | 7:53 | — | — | — | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:52 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 30 | 29 | 29 | 29 | 29 | 31 | 33 | 32 | 32 | 32 | 30 | 29 | 29 | 30 | 31 | 31 | 31 | 31 |
Feels °C | 31 | 30 | 30 | 31 | 32 | 32 | 34 | 36 | 34 | 34 | 36 | 31 | 31 | 31 | 32 | 33 | 32 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | S 3 | E 8 | E 8 | E 8 | E 10 | E 10 | E 10 | SSE 3 | E 10 | E 10 | E 9 | E 9 | N 4 | E 9 | E 9 |
| kJ | 5 | 5 | 5 | 5 | 2 | 5 | 6 | 5 | 8 | 8 | 8 | 2 | 7 | 7 | 7 | 6 | 1 | 6 | 6 |
Swell 2 Height (m) Direction Period (s) | NE 10 | NE 9 | NE 9 | NE 9 | E 8 | S 3 | — | E 11 | NE 11 | NE 10 | N 6 | E 10 | SSE 3 | N 5 | NE 5 | — | E 9 | NE 6 | NE 6 |
| kJ | 4 | 3 | 3 | 3 | 5 | 1 | — | 2 | 4 | 4 | 1 | 8 | 1 | 1 | 1 | — | 6 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | E 8 | E 12 | NE 9 | NE 9 | NE 9 | — | — | N 6 | NE 10 | NNE 6 | NNE 6 | — | NE 6 | NE 6 | NE 6 | — | — |
| kJ | — | — | 1 | 3 | 3 | 3 | 3 | — | — | 1 | 4 | 3 | 3 | — | 2 | 2 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | SE 3 | SE 3 | SSE 3 | S 3 | WSW 2 | — | — | — | ESE 2 | SSE 3 | SSE 3 | — | NW 2 | NW 2 | NNW 3 | NNE 5 | — | — | — |
| kJ | 4 | 5 | 3 | 3 | 1 | — | — | — | 1 | 4 | 5 | — | 1 | 1 | 1 | 3 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 314 | 314 | 314 | 314 | 314 | 324 | 324 | 324 | 324 | 259 | 250 | 314 | 314 | 324 | 324 | 324 | 324 | 327 | 327 |
Best forecast wave conditions in South Florida | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our 21st Street (Miami) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest