
Surf Forecasts:
21st Street (Miami) surf forecast from 7 Jul 2026:
- Most powerful swell: Friday 10 Jul, 2AM (local time) - 3.5ft (1.0m), 5s period, ESE swell with 48 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 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 6s period and expected on Thursday (Jul 09) at 11AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (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, Rusty here. Let’s have a look at what we’ve got for the coming weeks down at 21st Street (Miami).
Honestly, mate, it’s a real flat spell. The whole 16-day window is a struggle. For the first week, from Tuesday the 7th right through to Monday the 13th, there’s barely a ripple worth paddling for. Swell heights are stuck below 3 ft, mostly that tiny 0.7 ft to 3 ft range, and it’s coming in from the east and southeast. The problem is, the wind is almost always junk – cross-onshore from the SE or ESE, blowing 9 to 16 mph, which just chops everything up. The wave energy is weak, with combined energy readings barely cracking 48 and often sitting in the single digits. It’s a tough stretch. One tiny glimmer comes on Monday morning the 13th, when the wind goes light offshore from the west at just 3 mph, and the water cleans right up. But the swell is a pathetic 0.7 ft from the east with a period of 8 seconds. You’d need a log and a lot of patience to get a ride.
After that, things don’t really improve. From Tuesday the 14th through to the end of the forecast on Wednesday the 22nd, it’s the same story. Swell never gets above 3 ft, and the direction wobbles between east, northeast, and southeast. The wind remains a constant issue, mostly cross-onshore, keeping the surface messy. The wave energy numbers are all under 35, which tells you there’s no push at all. For a break like 21st Street that’s a beach break, it’s just not offering anything for a surfer. Honestly, this setup looks more interesting for a kite surfer than for paddle surfing, with all that cross-onshore wind and no real swell.
The water temp is around 88°, which is a touch warmer than normal for this time of year. That’s about it for excitement.
There are no standout days. No decent swell. No clean windows of any length. It’s a blank run, and for this area, that’s not unusual when the summer pattern settles in. You’re better off checking back in a week or two.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue morning. Warm (max 30°C on Thu afternoon, min 28°C on Wed night). Winds increasing (light winds from the SSE on Tue morning, fresh winds from the ESE by Thu night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri night. Warm (max 30°C on Fri afternoon, min 28°C on Fri night). Winds decreasing (fresh winds from the SE on Fri night, light winds from the S by Sun night). | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | E 5 | SE 4 | E 8 | SE 4 | SE 5 | SE 4 | E 5 | E 5 | ESE 5 | SE 5 | E 4 | E 4 | E 4 | E 4 | E 4 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph | |||||||||||||||||||||
4 | 12 | 7 | 22 | 31 | 27 | 11 | 11 | 48 | 38 | 14 | 18 | 9 | 7 | 7 | 5 | 5 | 5 | 5 | 5 | 5 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | cross-on | cross | off | cross-on | cross-off |
High Tide | 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 | 7:38AM0.82m | 8:27PM0.90m | ||||||||
Low Tide | 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 | 1:39AM0.00m | 1:59PM-0.19m | 2:35AM-0.04m | |||||||
6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | |
— | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | |
mm | 2 | 2 | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | 13 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 29 | 28 | 29 | 29 | 30 | 31 | 28 |
Feels °C | 33 | 31 | 31 | 31 | 31 | 31 | 30 | 31 | 29 | 30 | 30 | 29 | 32 | 33 | 30 | 32 | 32 | 31 | 34 | 33 | 28 |
Swell 1 Height (m) Direction Period (s) | E 5 | E 8 | E 8 | E 8 | E 8 | E 9 | SSE 6 | SSE 6 | E 8 | E 8 | SSE 6 | SSE 5 | S 5 | S 5 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | SSE 4 | E 8 | E 8 |
4 | 1 | 5 | 5 | 5 | 7 | 31 | 26 | 6 | 5 | 33 | 9 | 19 | 14 | 15 | 9 | 6 | 2 | 2 | 5 | 5 | |
Swell 2 Height (m) Direction Period (s) | E 8 | NE 8 | NE 9 | NE 11 | NE 10 | NE 10 | E 9 | E 9 | NE 9 | NE 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | N 7 | SE 4 |
1 | 3 | 3 | 4 | 4 | 4 | 6 | 6 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 1 | 1 | |
Swell 3 Height (m) Direction Period (s) | NE 8 | E 8 | — | — | NE 10 | — | NE 10 | NE 10 | — | N 11 | NE 9 | NE 10 | NE 8 | NE 8 | NNE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 9 | N 7 |
2 | 1 | — | — | 4 | — | 4 | 4 | — | 2 | 3 | 4 | 3 | 3 | 7 | 3 | 3 | 2 | 2 | 3 | 1 | |
Wind waves Height (m) Direction Period (s) | SSE 3 | SE 4 | SE 4 | SE 4 | SE 5 | SE 4 | E 5 | E 5 | ESE 5 | SE 5 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 3 | ESE 3 | — | SE 3 | — |
2 | 12 | 7 | 22 | 31 | 27 | 11 | 11 | 48 | 38 | 14 | 18 | 9 | 7 | 7 | 3 | 2 | 2 | — | 2 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 841 | 1634 | 427 | 234 | 338 | 384 | 234 | 1246 | 384 | 448 | 938 | 338 | 253 | 1634 | 314 | 314 | 517 | 324 | 324 | 353 | 327 |
Best forecast wave conditions in South Florida | |||||||||||||||||||||
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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.










