Surf Forecasts:
21st Street (Miami) surf forecast from 10 Jul 2026:
- Most powerful swell: Wednesday 15 Jul, 5AM (local time) - 2.5ft (0.7m), 8s period, NNE swell with 59 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 8s and forecast to arrive on Wednesday (Jul 15) at 5AM. 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 Friday (Jul 10) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Wed 15th Jul) | 2.5ft (0.7m) 8s |
Table - best surf conditions forecast for 21st Street (Miami) over the next 16 days.
Alright, surfers, Rusty here. Let’s have a look at what’s cookin’.
First up, I'm looking at 21st Street (Miami). Honestly, it’s a pretty grim picture for the next couple of weeks. The water temp is about average for the time of year, so that’s not your problem. The problem is, there’s just nothing happening. This spot is already inconsistent, and the entire 16-day window is pretty much a write-off.
We’re starting with next to nothing on Friday, July 10th. A tiny 3 ft south-east swell with a super short period of 5 seconds, and a cross-on wind from the ESE at 15 mph. The combined energy is a measly 48, so we’re talking weak, choppy junk. That’s the story right through the weekend and into the next week. Tiny, short-period waves with cross-onshore winds. It’s all "poor surf conditions" in the data.
There is one morning that stands out a little: Thursday, July 16th. We get a brief moment of glassy conditions with a light offshore wind from the west, but the swell is still only 2 ft from the NE with a period of 7 seconds. It’ll be clean, but don’t expect much push. The combined energy is still only 33. It’s the best on offer, but that’s like saying it’s the dryest towel on a wet floor.
After that, it’s back to the same old story. The swell barely tickles 3 ft by the end of the month, and the period stays short. The winds are almost always cross-on or onshore, keeping things choppy and messy. For a spot that’s just a fairly exposed beach, this setup is honestly more interesting for kite surfing than paddle surfing.
There are no standout days. The whole run is a flat, blown-out mess. You’d be better off finding a different hobby for a couple of weeks.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 30°C on Fri afternoon, min 27°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 29°C on Sun night, min 28°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thu 16 | |||||||||||||||
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) | ESE 4 | SE 5 | E 4 | ESE 5 | E 4 | E 8 | E 8 | SE 4 | SE 5 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 7 | NNE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 24 | 38 | 12 | 28 | 10 | 7 | 6 | 11 | 13 | 5 | 5 | 5 | 5 | 5 | 5 | 39 | 40 | 37 | 40 | 27 | 20 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | on | cross | glassy | cross-on |
High Tide | 4:33AM0.73m | 5:35PM0.78m | 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 | ||||||||
Low Tide | 10:36PM0.11m | 11:02AM-0.09m | 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 | |||||||
 | | |  |  | |  | | | | | | | | | | | | | | | |
 | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — |
 | 8:15 | — | 8:15 | — | — | 8:15 | — | — | 8:15 | — | — | 8:14 | — | — | 8:14 | — | — | 8:14 | — | — | 8:14 |
mm | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 29 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 |
Feels °C | 31 | 30 | 31 | 28 | 31 | 31 | 30 | 32 | 32 | 31 | 30 | 32 | 30 | 31 | 31 | 31 | 31 | 30 | 30 | 33 | 30 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | SSE 6 | E 8 | S 5 | SSE 5 | SSE 5 | E 8 | E 8 | E 8 | SE 4 | E 8 | E 8 | E 8 | E 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 7 | NNE 7 |
| kJ | 6 | 5 | 24 | 5 | 14 | 8 | 10 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 39 | 40 | 37 | 40 | 27 | 20 |
Swell 2 Height (m) Direction Period (s) | NE 9 | NE 9 | E 8 | NE 10 | E 4 | E 8 | E 8 | NE 8 | NE 8 | NE 7 | E 8 | NE 9 | — | — | NE 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 3 | 3 | 5 | 4 | 10 | 5 | 5 | 2 | 2 | 2 | 5 | 3 | — | — | 3 | 6 | 5 | 5 | 5 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | — | N 11 | NE 9 | — | E 8 | NNE 8 | NNE 8 | E 8 | E 8 | NE 9 | NE 9 | — | N 6 | NE 9 | — | — | — | — | — | — | E 8 |
| kJ | — | 2 | 3 | — | 5 | 7 | 6 | 1 | 5 | 3 | 3 | — | 1 | 3 | — | — | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | ESE 4 | SE 5 | E 4 | ESE 5 | E 4 | ESE 4 | E 4 | SE 4 | SE 5 | SE 3 | — | SE 3 | SSE 5 | SE 4 | SE 3 | SSE 4 | SE 3 | SE 3 | SE 4 | ESE 3 | SE 3 |
| kJ | 24 | 38 | 12 | 28 | 2 | 6 | 4 | 11 | 13 | 5 | — | 5 | 5 | 2 | 5 | 4 | 3 | 4 | 5 | 1 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 234 | 448 | 1459 | 427 | 728 | 958 | 314 | 314 | 448 | 421 | 448 | 841 | 763 | 524 | 696 | 173 | 145 | 324 | 60 | 127 | 327 |
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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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