Surf Forecasts:
21st Street (Miami) surf forecast from 1 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 2AM (local time) - 3.5ft (1.1m), 5s period, ESE swell with 64 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 1.1m 5s and forecast to arrive on Thursday (Aug 06) 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 0.5m 5s period and expected on Wednesday (Aug 05) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Thu 6th Aug) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for 21st Street (Miami) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – the outlook for the next couple of weeks is a tough one. We’ve got a real flat spell on our hands, so before we get into it, I’ve gotta warn you: there’s a big gap coming with no real surf to speak of.
Right now, and for the first week through to around the 7th of August, it’s pretty much a bust. We’re looking at 21st Street (Miami) and the whole stretch is seeing tiny, weak swell. The combined energy is sitting in the low double digits (9 to 61), which is barely a ripple. The wind is mostly cross or onshore, and the water temp is about average for the time of year, nothing unusual. The waves are small, short period, and messy – the kind of day you’d be better off fixing your fins than paddling out.
From the 8th of August right through the 16th, the pattern doesn’t change much. We’re stuck with onshore breezes, mostly from the ESE, and the swell stays tiny – 0.7 ft to 3 ft, with periods around 4 to 9 seconds. The combined energy never breaks past 36 (moderate at best), and every single session is flagged as “poor surf conditions.” There’s no standout day, no hidden gem. The wind is onshore or cross-onshore, which means choppy, lumpy water. This is a stretch where the surf is basically flat for days on end.
Honestly, if you’re a kite surfer, you might find some fun in the wind, but for paddle surfing, it’s a long, dry spell. The only real takeaway is that the 21st Street spot is inconsistent at the best of times, and this forecast confirms it – a blank run like this is pretty normal for the area. We’ll have to wait for a change in the pattern.
Stay patient, keep your eyes on the horizon.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Sun morning. Warm (max 32°C on Fri night, min 26°C on Sun night). Winds decreasing (fresh winds from the SSE on Sat afternoon, light winds from the ENE by Sun night). | Days 5-7 Weather SummaryHeavy rain (total 64mm), heaviest during Mon night. Warm (max 30°C on Mon night, min 25°C on Mon night). Mainly fresh winds. | ||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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 9 | E 8 | E 8 | E 8 | E 8 | SE 4 | SE 4 | ESE 4 | ESE 4 | E 8 | E 8 | SE 4 | ESE 4 | ESE 4 | ESE 5 | ESE 5 | E 5 | E 5 | E 4 |
Wave Graph  | |||||||||||||||||||
 kJ | 6 | 6 | 6 | 5 | 5 | 10 | 16 | 6 | 12 | 5 | 10 | 7 | 16 | 39 | 57 | 64 | 35 | 21 | 16 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross | cross | cross-on | cross-on | cross | cross-on | on | cross-on | cross-on | on | cross-on | on | cross-on | on | on | on |
High Tide | 10:29PM0.80m | 10:44AM0.78m | 11:04PM0.80m | 11:26AM0.78m | 11:41PM0.79m | 12:11PM0.78m | 00:21AM0.77m | 1:01PM0.77m | 1:07AM0.76m | 1:58PM0.76m | 2:01AM0.74m | 3:02PM0.75m | 3:04AM0.73m | ||||||
Low Tide | 4:38AM0.03m | 4:53PM0.01m | 5:15AM0.01m | 5:33PM0.04m | 5:56AM0.00m | 6:16PM0.08m | 6:40AM-0.00m | 7:05PM0.11m | 7:31AM-0.00m | 8:01PM0.15m | 8:30AM-0.00m | 9:05PM0.17m | |||||||
 |  | |  | |  | |  | | |  | | | | | | | | | |
 | — | 6:46 | — | — | 6:47 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — |
 | 8:07 | — | 8:06 | — | — | 8:06 | — | — | 8:05 | — | — | 8:04 | — | — | 8:04 | — | — | 8:02 | — |
mm | 4 | — | — | 2 | 5 | — | 4 | — | — | 15 | 2 | 5 | 8 | — | 5 | 14 | 5 | 10 | 6 |
Temp °C | 32 | 29 | 31 | 30 | 30 | 30 | 29 | 30 | 31 | 30 | 30 | 30 | 29 | 30 | 29 | 29 | 29 | 30 | 29 |
Feels °C | 33 | 33 | 30 | 30 | 32 | 32 | 33 | 32 | 31 | 33 | 33 | 31 | 29 | 30 | 29 | 29 | 29 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | S 4 | E 8 | E 8 | E 8 | E 4 | E 8 | E 8 | ESE 4 | E 8 | E 5 | E 8 | E 8 | E 8 | NE 8 | NE 8 | N 9 | SSE 5 | SSE 5 | SSE 5 |
| kJ | 2 | 6 | 5 | 5 | 3 | 5 | 5 | 6 | 5 | 5 | 10 | 4 | 4 | 2 | 2 | 2 | 14 | 15 | 5 |
Swell 2 Height (m) Direction Period (s) | E 9 | NE 9 | NE 9 | SSE 3 | E 8 | NE 8 | NE 8 | E 8 | NE 8 | SSE 4 | NE 8 | NE 8 | NE 8 | — | — | — | NE 8 | — | NE 10 |
| kJ | 6 | 3 | 3 | 1 | 5 | 3 | 3 | 5 | 3 | 1 | 2 | 2 | 2 | — | — | — | 3 | — | 4 |
Swell 3 Height (m) Direction Period (s) | NE 10 | — | — | NE 8 | NE 8 | NE 8 | — | NE 8 | NE 8 | E 8 | — | NE 8 | — | — | N 9 | — | — | — | E 7 |
| kJ | 4 | — | — | 3 | 3 | 3 | — | 3 | 2 | 4 | — | 3 | — | — | 2 | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | WNW 2 | — | SSE 3 | — | SSE 3 | SE 4 | SE 4 | SSE 4 | ESE 4 | — | SE 3 | SE 4 | ESE 4 | ESE 4 | ESE 5 | ESE 5 | E 5 | E 5 | E 4 |
| kJ | 1 | — | 6 | — | 4 | 10 | 16 | 5 | 12 | — | 3 | 7 | 16 | 39 | 57 | 64 | 35 | 21 | 16 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1149 | 862 | 353 | 1167 | 862 | 229 | 234 | 448 | 236 | 448 | 234 | 229 | 185 | 500 | 1221 | 472 | 915 | 1634 | 1149 |
Best forecast wave conditions in South Florida | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our 21st Street (Miami) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest