Surf Forecasts:
21st Street (Miami) surf forecast from 6 Jul 2026:
- Most powerful swell: Friday 10 Jul, 8PM (local time) - 3.5ft (1.0m), 5s period, SE swell with 55 kJ wave energy.
Best Forecast Surf Conditions for 21st Street (Miami) this week:
The most powerful waves expected at 21st Street (Miami) in the next 16 days are 1.0m 5s and forecast to arrive on Friday (Jul 10) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Friday (Jul 10) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Fri 10th Jul) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for 21st Street (Miami) over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s be straight with you – this 16-day window for Miami is a tough one. We’ve only got one break, 21st Street, and across the whole run it’s flat, weak, and messy. Right now, the swell is barely a ripple at 1ft, with a short, weak 4-second period and lousy cross-shore winds. The whole forecast period is what I’d call a blank run, with a string of days offering nothing rideable. The combined energy of all swells stays in the weak range, mostly under 45 (like 8 to 45), so there’s just no power in the water. It’s not unusual for this area to see a run like this when the conditions are quiet – it’s a fact of life here.
The first real chance at anything isn’t until much later. On Monday, July 15th, in the morning, we get a tiny 0.7ft swell from the NNE, but the wind goes glassy and then offshore from the SW. That’s clean, but it’s also ankle-high. The next real standout comes on Tuesday, July 16th, in the morning. Again, a tiny 1ft from the NE, but the wind is light and cross-offshore from the S, making for clean, glassy conditions. The water temperature is about average for this time of year, so no worries there.
The best on offer, if you can call it that, is probably the morning of July 16th. The swell is still only 1ft, but with a period of 8 seconds and clean conditions, a longboard might catch a few knee-high runners. The break is inconsistent, so don’t expect much. Crowds are possible here, so you might have some company while you’re waiting. Honestly, this is a time to check the forecasts again in a few days – it tends not to stay this poor for long.
Rusty, signing off.
Short Range ForecastModerate rain (total 16mm), heaviest on Mon night. Warm (max 30°C on Mon morning, min 29°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Fri afternoon. Warm (max 30°C on Thu morning, min 29°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sun 12 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSE 3 | SSE 4 | SSE 4 | SSE 3 | E 8 | E 8 | E 8 | SE 4 | SE 5 | SE 4 | SE 5 | E 5 | ESE 5 | SE 5 | SE 5 | SE 5 | SE 5 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 5 | 5 | 3 | 5 | 5 | 5 | 16 | 18 | 18 | 28 | 11 | 42 | 35 | 53 | 33 | 22 | 6 | 11 | 5 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on |
High Tide | 00:55AM0.71m | 1:29PM0.69m | 1:41AM0.70m | 2:26PM0.70m | 2:33AM0.70m | 3:28PM0.71m | 3:31AM0.71m | 4:32PM0.74m | 4:33AM0.73m | 5:35PM0.78m | 5:36AM0.75m | 6:36PM0.83m | 6:38AM0.79m | 7:33PM0.87m | |||||||
Low Tide | 7:13AM0.03m | 7:34PM0.09m | 8:04AM0.01m | 8:30PM0.11m | 8:59AM-0.02m | 9:31PM0.12m | 10:00AM-0.05m | 10:36PM0.11m | 11:02AM-0.09m | 11:40PM0.09m | 12:03PM-0.13m | 00:41AM0.05m | 1:02PM-0.16m | ||||||||
 |  |  |  | | | | |  |  | | | | | | | | |  | | | |
 | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — |
 | 8:15 | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 |
mm | 3 | — | 1 | 5 | 1 | 1 | 4 | 1 | — | 1 | — | — | 3 | 1 | 10 | 5 | — | — | — | — | — |
Temp °C | 29 | 30 | 30 | 30 | 30 | 29 | 30 | 29 | 30 | 29 | 30 | 30 | 29 | 29 | 30 | 30 | 29 | 30 | 29 | 29 | 30 |
Feels °C | 30 | 32 | 31 | 34 | 33 | 30 | 32 | 30 | 32 | 30 | 31 | 31 | 30 | 30 | 32 | 32 | 33 | 33 | 30 | 34 | 33 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 4 | E 4 | E 8 | SSE 3 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | SSE 5 | NE 9 | E 8 | E 8 | E 8 | E 8 | S 5 | E 8 | SSE 4 | SSE 5 |
| kJ | 1 | 1 | 2 | 1 | 1 | 5 | 5 | 5 | 5 | 7 | 6 | 16 | 3 | 5 | 6 | 5 | 5 | 14 | 11 | 3 | 2 |
Swell 2 Height (m) Direction Period (s) | NE 6 | E 8 | E 8 | NE 8 | E 8 | NE 8 | NE 8 | NE 11 | NE 10 | NE 10 | NE 10 | E 9 | E 9 | NE 9 | NE 9 | NE 10 | NE 10 | E 8 | NE 10 | E 8 | E 8 |
| kJ | 1 | 1 | 1 | 3 | 5 | 3 | 3 | 4 | 4 | 4 | 4 | 6 | 2 | 3 | 3 | 4 | 4 | 5 | 4 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | — | E 8 | E 8 | N 8 | NE 8 | N 8 | — | — | E 8 | — | NE 10 | NE 10 | — | N 11 | NE 11 | E 8 | E 8 | NE 10 | N 7 | E 3 | NE 9 |
| kJ | — | 1 | 1 | 1 | 2 | 1 | — | — | 5 | — | 4 | 4 | — | 2 | 5 | 1 | 1 | 4 | 1 | 1 | 3 |
Wind waves Height (m) Direction Period (s) | SSE 3 | SSE 4 | SSE 4 | SSE 3 | — | SE 3 | SE 3 | SE 4 | SE 5 | SE 4 | SE 5 | E 5 | ESE 5 | SE 5 | SE 5 | SE 5 | SE 5 | E 4 | SE 5 | — | E 3 |
| kJ | 4 | 5 | 5 | 3 | — | 5 | 3 | 16 | 18 | 18 | 28 | 11 | 42 | 35 | 53 | 33 | 22 | 6 | 9 | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 500 | 915 | 353 | 524 | 728 | 1539 | 448 | 234 | 338 | 229 | 234 | 1561 | 232 | 448 | 1221 | 394 | 234 | 314 | 314 | 314 | 314 |
Best forecast wave conditions in South Florida | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the 21st Street (Miami) Surf forecast
The above surf forecast table for 21st Street (Miami) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at 21st Street (Miami) can be found by selecting the local surf guide option on the grey menu. Our 21st Street (Miami) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (21st Street (Miami)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for 21st Street (Miami) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
21st Street (Miami) is 1 km (1 miles) from the city of Miami Beach. If you plan a vacation in South Florida, look for hotels and other accommodation in Miami Beach. Miami Beach has rooms for a wide range of budgets as well as car hire and transport links.
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