Surf Forecasts:
21st Street (Miami) surf forecast from 27 Jul 2026:
- Most powerful swell: Sunday 2 Aug, 8PM (local time) - 2ft (0.6m), 4s period, SE swell with 16 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 0.6m 4s and forecast to arrive on Sunday (Aug 02) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Jul 29) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sun 2nd Aug) | 2ft (0.6m) 4s |
Table - best surf conditions forecast for 21st Street (Miami) over the next 16 days.
The Lowdown
Alright folks, Rusty here again. Let me tell you what I see for the next couple of weeks.
I gotta be straight with you – we've got a long, flat stretch ahead. For the entire 16-day window, this forecast is a bit of a desert. We're looking at 21st Street (Miami), and the truth is, there's not a single day where I'd tell you to cancel your plans for a session. The guidance gives it a low rating and calls it inconsistent, and the numbers back that up. It's a bit of a bummer, but this happens here sometimes.
Kicking off on Sunday the 26th, we've got tiny ankle-snappers at 0.7 ft, but with a cross-offshore wind and a thunderstorm risk, it's not even worth paddling out for. The water temp is sitting at 87°, which is pretty much spot on for this time of year, so at least the water feels nice if you just want a dip.
Through the rest of July and into August, the story doesn't change. We see 0.7 ft to 2 ft swell at best, with periods hanging around 4 to 10 seconds. The combined swell energy is weak, never even hitting 100 (staying between 7 and 60). A lot of the wind is cross-shore or onshore, which just messes up what little bump there is. Even the few moments of glassy or offshore wind on the 27th and 31st can't save it because there's nothing to push.
We do see a slight bump around the 3rd of August, with the swell hitting 4 ft from the SE and a period of 5 seconds, but the wind is cross-shore and then cross-onshore, making it choppy. The energy climbs to 60, which is still weak. It's not surfable, just messy. After that, it drops back to tiny 0.7 ft to 3 ft stuff, mostly with onshore breezes. The energy never gets out of the double digits for the rest of the run.
So, the honest truth: no standouts, no hidden gems. This is a solid two-week-plus gap with nothing to recommend. Put the board away, clean your wax, and wait for the next system. The forecasts can always change, but right now, it's a hard pass.
- Rusty
Short Range ForecastHeavy rain (total 23mm), heaviest during Sun night. Warm (max 32°C on Sun afternoon, min 28°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Fri afternoon. Warm (max 34°C on Thu afternoon, min 27°C on Thu morning). Wind will be generally light. | |||||||||||||||||||
Sun 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
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 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | NE 10 | SSE 3 | E 9 | E 8 | E 8 | E 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 1 | 4 | 5 | 2 | 6 | 5 | 12 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | cross-off | off | cross-off | cross | cross-off | cross |
High Tide | 7:24PM0.73m | 7:18AM0.66m | 8:05PM0.76m | 8:02AM0.69m | 8:43PM0.78m | 8:44AM0.72m | 9:19PM0.80m | 9:24AM0.75m | 9:54PM0.80m | 10:04AM0.77m | 10:29PM0.80m | 10:44AM0.78m | 11:04PM0.80m | |||||||
Low Tide | 1:30AM0.16m | 1:35PM0.01m | 2:11AM0.13m | 2:17PM-0.01m | 2:49AM0.10m | 2:57PM-0.02m | 3:26AM0.07m | 3:36PM-0.02m | 4:02AM0.05m | 4:14PM-0.01m | 4:38AM0.03m | 4:53PM0.01m | ||||||||
 |  |  | |  | | |  |  | | | | |  |  |  | | |  | | |
 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:45 | — | — | 6:46 | — | — | 6:46 | — | — |
 | 8:09 | — | — | 8:08 | — | — | 8:08 | — | — | 8:07 | — | — | 8:07 | — | — | 8:07 | — | — | 8:06 | — |
mm | 4 | 8 | — | 4 | 1 | 2 | 4 | — | — | — | — | — | — | — | — | 3 | — | 4 | 6 | 2 |
Temp °C | 32 | 31 | 29 | 29 | 29 | 29 | 32 | 32 | 30 | 33 | 32 | 30 | 34 | 32 | 29 | 31 | 30 | 29 | 28 | 28 |
Feels °C | 33 | 33 | 32 | 31 | 32 | 31 | 32 | 31 | 30 | 32 | 31 | 31 | 32 | 31 | 32 | 33 | 32 | 30 | 30 | 32 |
Swell 1 Height (m) Direction Period (s) | E 8 | S 3 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 4 | E 8 | E 8 | S 4 | E 7 | E 7 | S 3 | E 8 | E 8 | E 8 |
| kJ | 5 | 2 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 4 | 4 | 2 | 1 | 1 | 2 | 6 | 5 | 12 |
Swell 2 Height (m) Direction Period (s) | NE 8 | E 8 | NE 8 | NE 8 | NE 8 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | E 8 | NE 9 | NE 9 | — | NE 10 | E 10 | E 7 | NE 9 | NE 9 | — |
| kJ | 3 | 5 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 5 | 3 | 3 | — | 4 | 2 | 1 | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | NE 8 | — | — | N 7 | NE 8 | NE 8 | NE 9 | NE 9 | NE 9 | NE 6 | N 6 | N 6 | E 7 | E 10 | N 6 | E 9 | — | NE 9 | NE 9 |
| kJ | — | 3 | — | — | 1 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 2 | 1 | 2 | — | 3 | 3 |
Wind waves Height (m) Direction Period (s) | S 3 | — | — | — | SW 3 | WSW 2 | SSW 3 | SW 3 | SW 3 | SSW 4 | W 3 | SW 2 | S 3 | — | — | SSE 3 | SSW 3 | SSE 3 | SE 3 | SE 3 |
| kJ | 5 | — | — | — | 2 | 1 | 3 | 5 | 2 | 15 | 1 | 1 | 5 | — | — | 5 | 5 | 1 | 4 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 327 | 234 | 327 | 327 | 359 | 727 | 353 | 1149 | 353 | 353 | 369 | 327 | 327 | 692 | 1032 | 324 | 524 | 862 | 314 | 727 |
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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