Surf Forecasts:
How big are the waves at 21st Street (Miami) today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 0.5ft (0.1m), 10s period with NE swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 0.5ft (0.1m), 10s period with NE swell.
- Evening surf: Evening surf (31 Jul, local time) - 2.5ft (0.7m), 4s period with S swell.
The current surf forecast for 21st Street (Miami) at 9PM is: 0.7m 4s primary swell from a South direction and 0.1m 7s secondary swell from a East direction, 0.1m 9s secondary swell from a East direction (forecast issued at 01:00pm July 31). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 0.5ft (0.1m) | 10s |
| Afternoon (31 Jul) | 0.5ft (0.1m) | 10s |
| Evening (31 Jul) | 2.5ft (0.7m) | 4s |
Table - waves today at 21st Street (Miami). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Fri night. Warm (max 32°C on Fri afternoon, min 26°C on Sun night). Winds decreasing (fresh winds from the S on Sat afternoon, calm by Sun night). | |||||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | |||||||||||||||||||
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 10 | E 10 | SSE 3 | S 4 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | S 3 | E 8 | E 8 | E 8 | E 8 | SE 4 | SSE 4 | S 4 | SSE 4 | SSE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 4 | 4 | 14 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 8 | 5 | 12 | 12 | 5 | 19 | 13 | 9 | 13 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross-on | glassy | cross-on |
High Tide | 10:04AM0.77m | 10:29PM0.80m | 10:44AM0.78m | 11:04PM0.80m | 11:26AM0.78m | ||||||||||||||||
Low Tide | 4:14PM-0.01m | 4:38AM0.03m | 4:53PM0.01m | 5:15AM0.01m | 5:33PM0.04m | ||||||||||||||||
 |  | |  |  |  | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — |
 | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:06 | — | — | — | — | — | — | — | 8:06 | — |
mm | — | — | — | 2 | 1 | — | 1 | — | — | — | — | 1 | 1 | 1 | — | 1 | 1 | 1 | — | 2 | 2 |
Temp °C | 30 | 32 | 32 | 32 | 31 | 30 | 29 | 29 | 29 | 30 | 31 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 26 |
Feels °C | 33 | 34 | 32 | 33 | 32 | 33 | 32 | 32 | 30 | 30 | 30 | 31 | 33 | 31 | 31 | 31 | 31 | 32 | 31 | 33 | 27 |
Swell 1 Height (m) Direction Period (s) | — | E 7 | E 7 | E 7 | S 4 | S 4 | S 3 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 5 | E 4 | E 8 | E 5 |
| kJ | — | 1 | 1 | 1 | 11 | 4 | 1 | 6 | 6 | 6 | 5 | 5 | 5 | 12 | 12 | 5 | 5 | 7 | 6 | 5 | 2 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | — | NE 9 | NE 9 | NE 9 | NE 9 | — | NE 8 | NE 8 | E 4 | NE 8 | E 8 | E 8 | NE 8 | E 8 |
| kJ | 1 | 2 | 2 | 2 | 7 | 6 | 6 | — | 3 | 3 | 3 | 3 | — | 3 | 3 | 1 | 3 | 5 | 5 | 3 | 5 |
Swell 3 Height (m) Direction Period (s) | E 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 10 | NE 9 | NE 9 | — | — | — | — | NE 9 | — | NE 8 | NE 8 | — | NE 8 | NE 8 | E 8 | NE 8 |
| kJ | 2 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | — | — | — | — | 3 | — | 3 | 3 | — | 3 | 3 | 5 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | SSE 3 | S 4 | SSW 4 | — | W 2 | — | — | S 2 | SSE 3 | S 3 | S 3 | S 3 | SSE 3 | SSE 3 | SE 4 | SSE 4 | S 4 | SSE 4 | SSE 5 |
| kJ | — | — | 3 | 14 | 15 | — | 1 | — | — | 1 | 6 | 8 | 3 | 2 | 3 | 4 | 19 | 13 | 9 | 13 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 353 | 353 | 1650 | 731 | 731 | 834 | 862 | 955 | 1634 | 314 | 314 | 359 | 129 | 862 | 229 | 448 | 448 | 448 | 229 | 360 | 448 |
Best forecast wave conditions in South Florida | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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