Surf Forecasts:
21st Street (Miami) surf forecast from 4 Jul 2026:
- Most powerful swell: Friday 10 Jul, 11AM (local time) - 3.5ft (1.1m), 5s period, SE swell with 60 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 Friday (Jul 10) at 11AM. 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 Thursday (Jul 09) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Fri 10th Jul) | 3.5ft (1.1m) 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 be straight with you – it’s a long, quiet outlook for the next couple of weeks. We don’t have a single standout session on offer, so I’m not going to pretend otherwise.
The whole 16-day window is pretty much a bust for any decent surf at 21st Street (Miami). There’s no recommendation to be found here. The wave energy just never gets going. From Friday the 3rd right through to Saturday the 18th of July, every single session is marked as poor surf conditions. That’s over two weeks of small, weak, and mostly messy waves. The combined wave energy stays in the low double digits and single digits for most of that time – barely a whisper out there, below 100 (weak). Only right at the very end, around the 16th and 17th of July, does the energy nudge up into the 80s (weak), but even then it’s onshore wind and the swell is tiny, around 3 ft to 4 ft.
The wind is uncooperative throughout. Almost every morning and afternoon brings a cross-onshore or onshore breeze, mostly from the SE or E, between 6 and 12 mph. That keeps the surface choppy or at least bumpy. The water temperature is about 87°, which is a touch warmer than normal for this time of year, but that’s not much comfort with no waves to enjoy.
Because there are no consistent swells or clean windows, the setup here is more interesting for kite surfing than paddle surfing on a few afternoons when the breeze picks up. But for a surfer, this is a blank run. It’s not unusual for this area – sometimes the ocean just goes quiet. Don’t throw your board in the shed though; forecasts can shift. For now, save the gas and wait for the next pulse.
Rusty.
Short Range ForecastHeavy rain (total 28mm), heaviest during Fri night. Warm (max 30°C on Sat afternoon, min 26°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Mon night. Warm (max 30°C on Mon night, min 28°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Fri 10 | |||||||||||||||
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) | NE 7 | NE 6 | E 8 | E 8 | E 8 | E 8 | SE 3 | E 8 | SE 3 | E 8 | E 8 | ESE 6 | E 8 | E 8 | E 8 | SE 4 | SE 5 | E 4 | ESE 4 | SE 5 | SSE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 11 | 7 | 5 | 5 | 5 | 5 | 2 | 1 | 3 | 5 | 5 | 12 | 5 | 6 | 6 | 14 | 33 | 10 | 34 | 60 | 27 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on |
High Tide | 11:35PM0.73m | 11:49AM0.68m | 00:14AM0.72m | 12:37PM0.69m | 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 | |||||||
Low Tide | 5:46AM0.06m | 5:58PM0.04m | 6:28AM0.05m | 6:43PM0.07m | 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 | ||||||||
 | |  |  |  | | | | | |  | | | | |  | | |  | | | |
 | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — |
 | 8:15 | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:15 |
mm | 15 | 1 | — | 3 | 1 | 2 | 4 | 1 | 1 | 5 | — | — | 2 | 2 | — | — | — | — | — | — | — |
Temp °C | 28 | 29 | 30 | 29 | 29 | 30 | 29 | 29 | 30 | 30 | 29 | 30 | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 30 | 29 |
Feels °C | 32 | 31 | 31 | 31 | 32 | 32 | 31 | 32 | 31 | 33 | 32 | 32 | 31 | 33 | 33 | 31 | 31 | 30 | 31 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NE 6 | NNE 6 | NE 6 | SSE 3 | E 8 | E 8 | SSE 3 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 | SSE 5 | E 8 | E 8 | E 5 |
| kJ | 11 | 7 | 4 | 1 | 1 | 5 | 1 | 1 | 1 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 22 | 6 | 5 | 20 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 4 | E 8 | E 3 | NE 6 | NE 6 | E 8 | E 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 10 | NE 10 | NE 10 | NE 10 | E 9 | NE 9 | NE 9 | E 8 |
| kJ | 5 | 6 | 1 | 5 | 1 | 1 | 1 | 1 | 1 | 3 | 2 | 2 | 3 | 4 | 4 | 4 | 4 | 6 | 3 | 3 | 5 |
Swell 3 Height (m) Direction Period (s) | — | E 4 | E 8 | — | E 8 | — | — | N 6 | — | — | — | NE 8 | N 8 | NE 11 | NE 10 | — | NE 10 | NE 10 | N 12 | NE 11 | NE 9 |
| kJ | — | 1 | 5 | — | 5 | — | — | 1 | — | — | — | 3 | 1 | 4 | 4 | — | 4 | 4 | 3 | 5 | 3 |
Wind waves Height (m) Direction Period (s) | SSE 3 | S 3 | SSE 3 | SSE 3 | — | SE 3 | SE 3 | E 3 | SE 3 | SSE 3 | — | ESE 6 | ESE 3 | ESE 4 | SE 3 | SE 4 | SE 5 | E 4 | ESE 4 | SE 5 | SSE 5 |
| kJ | 4 | 1 | 3 | 4 | — | 3 | 2 | 1 | 3 | 1 | — | 12 | 3 | 6 | 6 | 14 | 33 | 10 | 34 | 60 | 27 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 314 | 234 | 234 | 731 | 448 | 862 | 1634 | 463 | 915 | 1292 | 500 | 234 | 314 | 448 | 250 | 314 | 236 | 234 | 427 | 236 | 156 |
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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