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 5PM is: 0.2m 10s primary swell from a East direction and 0.1m 11s secondary swell from a Northeast direction, 0.4m 2s secondary swell from a Southeast direction (forecast issued at 01:00pm August 18). The wind direction is predicted to be cross-onshore.
| 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 ForecastModerate rain (total 12mm), heaviest on Thu night. Warm (max 33°C on Tue afternoon, min 28°C on Wed morning). Wind will be generally light. | |||||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | 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 | E 9 | E 9 | E 9 | E 8 | E 8 | S 4 | S 4 | S 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 5 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 14 | 11 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross | off | off | cross-off | cross-off | cross-off | cross-on | cross | glassy | glassy |
High Tide | 1:19PM0.78m | 1:22AM0.74m | 2:12PM0.74m | 2:10AM0.69m | 3:11PM0.71m | ||||||||||||||||
Low Tide | 7:22PM0.18m | 7:44AM0.09m | 8:14PM0.24m | 8:36AM0.13m | 9:13PM0.28m | ||||||||||||||||
 | | |  | | | | | |  | |  | | | | | | |  |  | | |
 | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | — | — | 7:52 | — | — | — | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:52 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 6 | 3 |
Temp °C | 31 | 33 | 32 | 31 | 31 | 30 | 29 | 28 | 30 | 32 | 31 | 32 | 31 | 31 | 30 | 29 | 30 | 31 | 31 | 30 | 29 |
Feels °C | 34 | 36 | 34 | 33 | 35 | 32 | 31 | 30 | 32 | 34 | 30 | 34 | 32 | 34 | 32 | 32 | 33 | 32 | 33 | 35 | 34 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 10 | E 10 | E 10 | SSE 4 | S 3 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 6 | 5 | 8 | 8 | 8 | 4 | 1 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Swell 2 Height (m) Direction Period (s) | NE 9 | E 11 | NE 11 | NE 10 | N 6 | E 10 | E 10 | — | N 5 | — | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 9 | NE 9 | NE 9 |
| kJ | 3 | 2 | 4 | 4 | 1 | 8 | 7 | — | 1 | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | E 11 | NE 9 | N 6 | N 6 | NE 10 | NE 6 | NE 6 | N 5 | NE 6 | NE 6 | NE 9 | NE 9 | NE 9 | — | — | — | NE 9 | NE 9 | NE 6 | — | — |
| kJ | 2 | 3 | 1 | 1 | 4 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 3 | — | — | — | 3 | 3 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SE 2 | SSE 3 | SSE 4 | SSW 3 | — | NW 2 | NNW 3 | — | SE 3 | SE 3 | SSE 3 | S 3 | S 3 | S 3 | — | SSE 3 | S 4 | S 4 | S 4 |
| kJ | — | — | 1 | 7 | 7 | 4 | — | 1 | 1 | — | 2 | 1 | 2 | 3 | 1 | 1 | — | 2 | 14 | 11 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 324 | 314 | 324 | 324 | 234 | 314 | 324 | 324 | 324 | 324 | 324 | 324 | 327 | 353 | 375 | 407 | 407 | 407 | 1666 | 731 | 915 |
Best forecast wave conditions in South Florida | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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