
Surf Forecasts:
21st Street (Miami) surf forecast from 2 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 2AM (local time) - 3.5ft (1.0m), 5s period, E swell with 42 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 1.0m 5s and forecast to arrive on Thursday (Aug 06) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Aug 02) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Thu 6th Aug) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for 21st Street (Miami) over the next 16 days.
The Lowdown
Alright, let’s get real here. I’ve looked over the goods for the next couple of weeks, and honestly, it’s a tough one. We’re staring down a long, dry spell with nothing really worth paddling out for. The only spot on the radar is 21st Street (Miami), and it’s an inconsistent little wave that rarely kicks into gear. The whole 16-day window is basically a bust, so don’t hold your breath.
The water temperature is running about average for this time of year, so at least you won’t need a wetsuit, but you’ll need a whole lot of patience.
Right now, from Sunday the 2nd of August, we’ve got nothing. Tiny, short-period slop coming from the south and southeast, with cross and onshore winds messing up what little is there. The wave energy is barely a whisper, reading around 17 to 18 (combined energy), and the swell is a pathetic 2 ft at 4 seconds. That’s not surf, that’s bathwater with a breeze.
Monday the 3rd and Tuesday the 4th are more of the same – 0.7 ft to 1.0 ft of weak, wind-affected junk. The wind is either cross or onshore, keeping things choppy and uninviting. The energy readings are in the low teens, which is just sad.
We roll into Wednesday the 5th and Thursday the 6th, and the swell tries to nudge up to 3 ft, but it’s still coming from the east-southeast with a crummy 4-second period. The wind is onshore or cross-onshore, 12 to 16 mph, creating a mess. Even with the energy creeping up to 28, it’s still “poor surf conditions” across the board.
From Friday the 7th through the weekend, we see a slight shift. The swell direction swings to the northeast, and the period stretches to 8–9 seconds, which is a little more promising. The energy builds to 54 on Saturday the 8th and 66 that afternoon, with 1 ft to 2 ft of swell. But the wind is still onshore from the east-northeast, so it’s going to be a bumpy, blown-out mess. Not worth the drive.
The second week doesn’t get any better. Monday the 10th of August sees the biggest swell of the whole period – 4 ft from the southeast, with a 5-second period. The wave energy hits 102 (moderate), which sounds alright, but the wind is cross-onshore at 12 mph, and the surf quality is still rated poor. It’s just not coming together.
After that, it’s a slow fade into tiny, weak, onshore junk for the rest of the window. Energy readings drop back to single digits and low teens. The wind stays stubbornly cross-onshore or onshore, and the swell never gets any size or direction to make it worthwhile.
The bottom line: there are no good surf options in this 16-day window. 21st Street is inconsistent and rarely breaks, and when it does, the conditions are rubbish. For a place like Miami, this kind of blank run is pretty normal when the summer pattern locks in. It tends not to stay poor for long, and forecasts can change, but right now, I’d save your energy.
Stay tuned, and don’t sell your board just yet.
Rusty
Short Range ForecastHeavy rain (total 41mm), heaviest during Mon night. Warm (max 30°C on Sat night, min 26°C on Sun night). Winds decreasing (fresh winds from the N on Sun night, light winds from the SSE by Tue morning). | Days 5-7 Weather SummaryHeavy rain (total 21mm), heaviest during Tue night. Warm (max 29°C on Tue night, min 29°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 | S 4 | SE 4 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 3 | ESE 4 | E 4 | E 5 | E 4 | E 5 | ENE 4 | E 4 | NE 8 | NE 8 |
Wave Graph | |||||||||||||||||||
12 | 7 | 7 | 7 | 5 | 5 | 4 | 10 | 4 | 9 | 22 | 14 | 42 | 25 | 21 | 20 | 14 | 11 | 33 | |
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 | on | cross-on | cross-on | on | on | on | on | on | on | on | on |
High Tide | 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 | 4:11PM0.77m | 4:13AM0.74m | ||||||
Low Tide | 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 | 9:35AM-0.00m | 10:15PM0.17m | |||||||
— | 6:47 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | |
8:06 | — | 8:06 | — | — | 8:05 | — | — | 8:04 | — | — | 8:04 | — | — | 8:02 | — | — | 8:01 | — | |
mm | 8 | 2 | — | 7 | — | 6 | 18 | — | — | 6 | — | 1 | 3 | 1 | 5 | 1 | 3 | 1 | — |
Temp °C | 30 | 29 | 30 | 29 | 30 | 30 | 28 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 32 | 31 | 33 | 30 | 33 | 31 | 29 | 33 | 32 | 33 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSE 3 | E 5 | E 8 | E 8 | E 4 | E 4 | E 8 | E 8 | E 8 | NE 8 | E 7 | SSE 4 | SSE 5 | — | SSE 4 | SSE 4 | E 7 | NE 5 | NE 8 |
2 | 2 | 5 | 5 | 1 | 4 | 4 | 10 | 4 | 2 | 4 | 6 | 5 | — | 4 | 2 | 8 | 8 | 33 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | NE 8 | NE 8 | E 8 | E 8 | E 4 | NE 8 | NE 8 | NE 8 | NE 8 | E 7 | NE 8 | NE 8 | E 7 | NE 8 | NE 8 | E 7 | ESE 8 |
12 | 5 | 3 | 3 | 5 | 5 | 2 | 2 | 2 | 3 | 2 | 4 | 2 | 2 | 4 | 2 | 2 | 9 | 19 | |
Swell 3 Height (m) Direction Period (s) | — | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | — | NE 8 | — | — | NE 8 | — | N 8 | N 8 | N 10 | — | NE 8 | NNE 6 |
— | 3 | 3 | 3 | 3 | 2 | 2 | — | 2 | — | — | 2 | — | 1 | 1 | 2 | — | 11 | 6 | |
Wind waves Height (m) Direction Period (s) | SSW 3 | S 4 | SE 4 | SE 4 | SSE 4 | SSE 4 | SSE 3 | SSE 3 | ESE 3 | ESE 3 | ESE 4 | E 4 | E 5 | E 4 | E 5 | ENE 4 | E 4 | ESE 4 | — |
3 | 7 | 7 | 7 | 4 | 5 | 2 | 2 | 4 | 9 | 22 | 14 | 42 | 25 | 21 | 20 | 14 | 7 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1167 | 862 | 234 | 234 | 448 | 379 | 448 | 448 | 448 | 272 | 517 | 1563 | 377 | 862 | 1634 | 1167 | 841 | 338 | 338 |
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
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.











