Surf Forecasts:
21st Street (Miami) surf forecast from 24 Jul 2026:
- Most powerful swell: Friday 24 Jul, 11PM (local time) - 1.5ft (0.5m), 8s period, E swell with 30 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 0.5m 8s and forecast to arrive on Friday (Jul 24) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Thursday (Jul 30) at 8PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Fri 24th Jul) | 1.5ft (0.5m) 8s |
Table - best surf conditions forecast for 21st Street (Miami) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get straight into it. We've got a stretch of pretty quiet, small surf ahead here at 21st Street. The water is currently sitting at 86°, which is about normal for this time of year.
The long and short of it is this: there's hardly any swell on the table for the next two weeks. The first seven days are a total bust with barely a ripple. Things don't start looking any better in the second week either. The best we can hope for, and it's a real maybe, is a little bump in size towards the end.
Friday, July 24th through to Thursday, August 5th is a flat spell. We're stuck with waist-high mush at best, and mostly just ankle-slop. The swell is tiny, coming from the east with a short period, so you're looking at weak, gutless waves. The combined energy is barely registering, mostly in the single digits (8-24) during the first week. The wind is a mixed bag – some mornings are clean, but the afternoons are choppy. On Sunday, July 26th morning we get a clean window with light cross-offshore wind, but the swell is still just 1.0ft from the east.
Wednesday, July 29th afternoon, the wind picks up but we get a little bump to 2ft, but it's a south-swell with a 4-second period. That's junk.
Friday, August 7th morning, we finally see a bit of life. The swell pushes up to 3ft from the ESE, but it's still short period (4 seconds) and onshore. The combined energy creeps up to 25, but it's still weak. The wind is onshore, so it'll be messy.
Saturday, August 8th is the most promising day of the whole outlook. The swell gets to 3ft from the ESE and SE, with a period of 5 seconds. The combined energy is the highest we'll see at 38-44, but that's still considered weak. The wind is onshore from the east, which isn't good for this spot.
Honestly, this is a tough one. There's no standout day. Even the biggest day on the 8th is onshore wind and tiny. 21st Street is an inconsistent spot, and this forecast is a classic example of a blank run. For a pure paddle surfer, it's a write-off. If you're into kiting, the onshore breezes might offer a bit of fun, but for us surfers, it's a two-week wait for very little reward.
Rusty.
Short Range ForecastHeavy rain (total 61mm), heaviest during Sun night. Warm (max 30°C on Sun afternoon, min 25°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 16mm), heaviest on Mon night. Warm (max 32°C on Wed afternoon, min 26°C on Mon afternoon). Wind will be generally light. | |||||||||||||||||||
Fri 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||
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 8 | E 8 | E 8 | E 8 | E 8 | S 3 | NE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 11 | 19 | 10 | 10 | 10 | 10 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 8 | 3 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 5:50PM0.68m | 5:41AM0.62m | 6:40PM0.70m | 6:31AM0.64m | 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 | |||||||
Low Tide | 11:54PM0.21m | 12:04PM0.05m | 00:44AM0.19m | 12:51PM0.03m | 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 | |||||||
 |  |  |  |  | |  | |  | | | | | | | | | | |  | |
 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:45 | — | — |
 | 8:10 | — | — | 8:09 | — | — | 8:09 | — | — | 8:08 | — | — | 8:08 | — | — | 8:07 | — | — | 8:07 | — |
mm | — | 1 | — | 2 | 10 | — | 2 | 38 | 8 | 1 | 6 | — | 3 | 3 | — | 2 | 1 | — | — | — |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 27 | 28 | 28 | 28 | 29 | 30 | 30 | 30 | 32 | 31 | 29 | 33 | 32 |
Feels °C | 32 | 32 | 33 | 31 | 32 | 31 | 31 | 29 | 31 | 30 | 30 | 32 | 31 | 31 | 32 | 34 | 30 | 30 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | S 3 | E 8 | E 8 | S 3 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 4 | E 8 | E 8 | S 4 |
| kJ | 11 | 19 | 10 | 10 | 10 | 10 | 5 | 2 | 5 | 5 | 2 | 5 | 5 | 5 | 5 | 5 | 3 | 5 | 5 | 2 |
Swell 2 Height (m) Direction Period (s) | NE 9 | NE 8 | E 4 | NE 8 | NE 8 | NE 8 | NE 8 | E 8 | NE 8 | NE 8 | E 8 | NE 8 | NE 8 | S 3 | NE 9 | NE 9 | E 8 | NE 6 | NE 9 | E 8 |
| kJ | 3 | 3 | 2 | 3 | 2 | 3 | 3 | 5 | 3 | 3 | 5 | 3 | 3 | 1 | 3 | 3 | 5 | 1 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | NE 9 | NE 4 | NE 8 | NE 8 | NE 8 | S 3 | — | NE 8 | — | N 6 | NE 8 | — | N 6 | NE 9 | NE 6 | NE 7 | NE 6 | NE 9 | N 6 | NE 9 |
| kJ | 3 | 1 | 3 | 3 | 3 | 1 | — | 3 | — | 1 | 3 | — | 1 | 3 | 1 | 2 | 2 | 3 | 1 | 3 |
Wind waves Height (m) Direction Period (s) | E 4 | SSE 3 | SSE 4 | SE 4 | SSE 4 | — | — | W 2 | S 3 | S 3 | — | S 3 | S 3 | — | SW 2 | S 3 | — | WSW 2 | S 3 | — |
| kJ | 8 | 1 | 1 | 4 | 3 | — | — | 1 | 1 | 1 | — | 1 | 5 | — | 1 | 1 | — | 1 | 8 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 338 | 375 | 272 | 232 | 359 | 234 | 234 | 327 | 234 | 359 | 353 | 915 | 1563 | 359 | 862 | 327 | 327 | 359 | 841 | 353 |
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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