Surf Forecasts:
21st Street (Miami) surf forecast from 23 Jul 2026:
- Most powerful swell: Friday 24 Jul, 8PM (local time) - 1.5ft (0.5m), 8s period, E swell with 31 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 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Wednesday (Jul 29) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (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, Rusty here. Let's get into it, mate. To be honest, the next two weeks look pretty bleak for a proper paddle. We've got a run of tiny, weak waves with wonky wind, so don't get your hopes up for anything special.
The whole 16-day outlook is a struggle. There’s barely a wave over 3 ft, and the period is mostly short, choppy windswell. The only spot that’s even in the conversation is 21st Street (Miami). The water temp is sitting at 86°F, which is about 1°F warmer than normal for this time of year, so it’s a pleasant bath, but the surf is a different story.
The first real shot at anything comes on Thursday, July 23rd, but it’s a rough one. The morning shows a 2 ft east swell with a 4 second period—that’s junk. To make it worse, the wind is howling onshore from the ENE at 12 mph, making it a choppy mess. The combined energy of all swells directed here is a weak 18. That afternoon is slightly clearer skies but the wind jumps to 16 mph cross-onshore, so it’s still poor surf conditions.
We get a little relief on Sunday, July 26th, when the wind drops to a light breeze. The swell is still tiny at 1.0 ft from the east, but the cross-offshore wind from the SSW at 6 mph will make it look clean. It’s not going to be good, just clean and tiny. This pattern of clean but tiny continues through the week, with a few mornings like Monday, July 27th and Tuesday, July 28th offering glassy conditions but with swell heights of 0.7 ft. The energy is barely registering, with values around 8 or 9.
The best of a bad bunch comes on Sunday, August 2nd. The swell finally bumps up to 3 ft from the SSE with a 5 second period. The combined energy hits 69, which is at least something. The wind is a gentle cross-shore from the south at 9 mph, so it’ll be a bit lumpy but probably the most push you’ll see all forecast. It’s still not great, but it’s the only day where you might get a few little reform waves.
Beyond that, it’s all back to tiny, onshore junk. Honestly, for the whole 16 days, the setup looks more interesting for a kite surfer than a paddle surfer, with the consistent cross and cross-onshore winds. There’s no standouts here, no hidden gem. Just a flat spell.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Fri night. Warm (max 29°C on Thu morning, min 28°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 25mm), heaviest during Mon morning. Warm (max 30°C on Sun afternoon, min 28°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | |||||||||||||||
AM | 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 4 | E 4 | ENE 4 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 3 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 11 | 12 | 19 | 10 | 11 | 30 | 10 | 10 | 10 | 10 | 9 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | off |
High Tide | 4:55PM0.67m | 4:47AM0.62m | 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 | ||||||||
Low Tide | 10:20AM0.05m | 10:58PM0.21m | 11:13AM0.06m | 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 | |||||||
 |  |  | |  | | | |  | | |  |  | | | | | | |  | | |
 | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — |
 | — | 8:10 | — | — | 8:10 | — | — | 8:09 | — | — | 8:09 | — | — | 8:08 | — | — | 8:08 | — | — | 8:07 | — |
mm | 1 | — | 2 | 1 | — | 7 | 1 | — | — | — | 1 | 12 | 8 | — | 1 | — | — | 3 | — | 1 | 2 |
Temp °C | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 28 | 29 | 29 | 29 | 30 | 30 | 29 | 32 | 32 |
Feels °C | 30 | 30 | 30 | 32 | 31 | 31 | 32 | 31 | 32 | 33 | 32 | 31 | 31 | 30 | 30 | 32 | 30 | 30 | 31 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | NE 8 | E 4 | 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 4 |
| kJ | 5 | 5 | 5 | 10 | 11 | 3 | 6 | 10 | 10 | 10 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | NE 9 | NE 4 | NNE 4 | NE 4 | E 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 6 | NE 6 | NE 9 | NE 9 | E 8 |
| kJ | — | — | 3 | 2 | 2 | 1 | 10 | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 3 | 3 | 5 |
Swell 3 Height (m) Direction Period (s) | N 9 | N 9 | — | NE 9 | NE 9 | — | NE 8 | NE 8 | NE 8 | — | — | — | — | — | — | N 7 | NE 8 | NE 9 | NE 6 | NE 6 | NE 9 |
| kJ | 2 | 1 | — | 3 | 3 | — | 3 | 3 | 3 | — | — | — | — | — | — | 1 | 3 | 3 | 1 | 1 | 3 |
Wind waves Height (m) Direction Period (s) | E 4 | E 4 | ENE 4 | ESE 4 | ESE 4 | E 8 | SSE 4 | SE 4 | SSE 4 | — | SSE 3 | SSW 3 | SSW 3 | S 3 | SSW 3 | S 3 | S 3 | S 3 | — | S 3 | WSW 3 |
| kJ | 11 | 12 | 19 | 6 | 4 | 30 | 6 | 9 | 4 | — | 9 | 3 | 2 | 1 | 1 | 1 | 5 | 2 | — | 4 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 289 | 379 | 448 | 338 | 375 | 338 | 421 | 359 | 234 | 234 | 234 | 234 | 353 | 353 | 915 | 359 | 314 | 448 | 314 | 327 | 369 |
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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