Surf Forecasts:
21st Street (Miami) surf forecast from 11 Jul 2026:
- Most powerful swell: Saturday 11 Jul, 11AM (local time) - 2.5ft (0.7m), 6s period, SE swell with 33 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 0.7m 6s and forecast to arrive on Saturday (Jul 11) 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 6s period and expected on Saturday (Jul 11) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Sat 11th Jul) | 2.5ft (0.7m) 6s |
Table - best surf conditions forecast for 21st Street (Miami) over the next 16 days.
Hey there, Rusty again. Let’s break it down in feet and miles per hour.
Things are looking dead flat for a long stretch. From now through most of the next 16 days, there’s just no surf worth talking about. The first session shows up on Saturday July 11, but it’s a dud. There’s a real long gap of quiet days across July, with only tiny, useless pulses. It’s one of those frustrating runs where you just gotta wait it out.
21st Street (Miami) is the only break in the picture, and it’s been inconsistent for a reason. From Saturday July 11 all the way to Sunday July 26, every single time slot is rated poor surf conditions. The combined wave energy is pitiful – numbers like 46 (weak) on Saturday morning, dropping to single digits later. It’s all tiny windswell, mostly under 3 ft, with a short, weak period of 4 to 8 seconds. That’s not enough for anything.
Winds are mostly cross-onshore from the SE at around 9 mph, keeping the surface choppy and messy. There are a few cleaner windows – Thursday July 16 morning goes glassy, and Friday July 24 morning has a light cross-offshore from the SSW – but the swell is only 0.5 ft to 2 ft. You can’t ride that. Beginners will find nothing, and even an intermediate on a longboard will be standing around.
There are zero standouts. The whole two weeks are a washout for 21st Street. If you’re truly bored, check Thursday July 16 morning when it’s glassy, but don’t expect a single wave. Crowds are “often” on a good day, but with this flatness, you’ll have the place to yourself.
Water temp is about normal for this time of year.
The bottom line is no surf. It’s a complete blank run, and for Miami, that happens. Forecasts might change, but for now, don’t bother.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Fri night. Warm (max 30°C on Sat afternoon, min 26°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Wed afternoon, min 28°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Fri 17 | |||||||||||||||
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) | SE 4 | SE 6 | SSE 6 | NNE 8 | SE 4 | E 8 | SE 5 | E 8 | SE 4 | SE 5 | E 8 | E 8 | NNE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | SE 3 |
Wave Graph  | |||||||||||||||||||||
 kJ | 28 | 33 | 27 | 6 | 7 | 5 | 5 | 5 | 10 | 5 | 5 | 5 | 14 | 15 | 14 | 14 | 13 | 8 | 8 | 9 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | on | cross-on | glassy | cross-on | cross-off | cross | cross-on |
High Tide | 5:36AM0.75m | 6:36PM0.83m | 6:38AM0.79m | 7:33PM0.87m | 7:38AM0.82m | 8:27PM0.90m | 8:35AM0.85m | 9:18PM0.92m | 9:30AM0.87m | 10:09PM0.92m | 10:24AM0.87m | 10:58PM0.90m | 11:18AM0.85m | ||||||||
Low Tide | 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 | 2:54PM-0.20m | 3:28AM-0.07m | 3:47PM-0.19m | 4:19AM-0.09m | 4:38PM-0.16m | 5:10AM-0.09m | 5:29PM-0.10m | |||||||
 |  |  |  | | |  | | | | | | | | | | | | | | | |
 | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — |
 | 8:15 | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:14 | — | — | 8:14 | — | — | 8:14 | — | — | 8:13 |
mm | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 28 | 30 | 29 | 28 | 29 | 28 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 30 | 29 | 30 | 30 | 30 | 29 | 30 |
Feels °C | 31 | 32 | 34 | 31 | 31 | 32 | 30 | 30 | 32 | 30 | 31 | 31 | 30 | 32 | 31 | 31 | 34 | 31 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | NNE 8 | SSE 5 | E 8 | SSE 5 | E 8 | SE 4 | E 8 | E 8 | E 8 | E 8 | NNE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NNE 7 |
| kJ | 5 | 5 | 7 | 8 | 5 | 4 | 5 | 4 | 5 | 5 | 5 | 5 | 14 | 15 | 14 | 14 | 13 | 8 | 8 | 9 | 5 |
Swell 2 Height (m) Direction Period (s) | NE 10 | NE 9 | E 8 | NNE 8 | NNE 8 | E 8 | NE 7 | E 8 | N 9 | N 9 | NE 9 | NE 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 3 | SSE 4 | E 8 |
| kJ | 4 | 3 | 5 | 6 | 6 | 5 | 2 | 5 | 2 | 2 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 1 | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | — | E 8 | E 8 | E 8 | NE 8 | NE 8 | NE 7 | NE 9 | — | — | N 9 | — | — | — | E 8 | — | E 8 | — | E 8 | E 3 | — |
| kJ | — | 5 | 5 | 5 | 2 | 2 | 2 | 3 | — | — | 2 | — | — | — | 5 | — | 5 | — | 5 | 1 | — |
Wind waves Height (m) Direction Period (s) | SE 4 | SE 6 | SSE 6 | ESE 4 | SE 4 | ESE 3 | SE 5 | — | SE 4 | SE 5 | SE 4 | ESE 3 | ESE 3 | SE 4 | SE 3 | SE 3 | SE 4 | SE 3 | SSE 5 | — | SE 3 |
| kJ | 28 | 33 | 27 | 3 | 7 | 4 | 5 | — | 10 | 5 | 3 | 5 | 4 | 3 | 2 | 3 | 2 | 3 | 5 | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 236 | 941 | 1188 | 327 | 448 | 365 | 596 | 448 | 1042 | 596 | 841 | 517 | 234 | 234 | 324 | 129 | 324 | 353 | 236 | 359 | 1634 |
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.
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