Surf Forecasts:
South Beach (Miami) surf forecast from 18 Aug 2026:
- Most powerful swell: Sunday 23 Aug, 5PM (local time) - 2.5ft (0.8m), 5s period, SSE swell with 24 kJ wave energy.
Best Forecast Surf Conditions for South Beach (Miami) this week:
The most powerful waves expected at South Beach (Miami) in the next 16 days are 0.8m 5s and forecast to arrive on Sunday (Aug 23) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Aug 18) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Sun 23rd Aug) | 2.5ft (0.8m) 5s |
Table - best surf conditions forecast for South Beach (Miami) over the next 16 days.
The Lowdown
Alright, Rusty here again. Let's call it like it is: the next 16 days are a total bust for Miami. The surf is flat to tiny, and every single session is marked as poor. There’s no standout day, no sneaky window, nothing to get psyched on. The combined energy of all swells directed here is weak, almost always in the single digits or low double digits (10), meaning there’s no juice in the water. The water temperature is 87° right now, which is about 2° warmer than usual for this time of year, so it’s a bit soupy, but that’s the only thing worth mentioning.
For the first week, from August 17th through August 24th, it’s a whole lot of nothing. You’ve got tiny 0.3ft to 1.0ft windswell with short periods under 6 seconds, and the wind is mostly cross-on or cross-shore, chopping it all up. Tuesday morning the 18th and Wednesday morning the 19th look clean with a light cross-offshore breeze, but with a 0.3ft bump and a period of 9 or 10 seconds, you’re looking at barely a ripple. Not worth wetting a wetsuit for.
The second week, from August 25th into September, sees a slight bump in swell height, nudging up to 3ft and even 3ft on the 26th, but the period stays short at 4 or 5 seconds, and the wind turns onshore and strong. The combined energy hits 50 on the 26th morning, which is still weak (a two-digit number), and with onshore winds from the ENE at 12 mph, it’s going to be a messy, crumbly shorebreak. The best you could hope for is a glassy morning on the 22nd, but that’s only 0.7ft and 3-second period – flat as a lake.
Honestly, if you’re desperate, the break is South Beach (Miami). It’s a consistent beach and jetty setup, sheltered from the direction of the swell, which is never ideal. The optimum swell direction would be from the NNE, but all the tiny pulses are coming from the SSE, E, or SE. For a beginner, the swell never gets above 5ft, so it’s not dangerous, but there’s just no wave to ride. With the onshore winds and straight wave faces, this setup looks more interesting for kite surfing than paddle surfing.
There’s a long gap of absolutely no surf recommendations across the entire 16-day window. It’s a blank run, and for this area, that’s not too unusual – forecasts can change, but right now, keep the board in the truck.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Wed night. Warm (max 33°C on Tue afternoon, min 28°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Sat night. Warm (max 30°C on Thu afternoon, min 28°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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) | SSE 5 | E 9 | E 11 | E 11 | N 6 | E 10 | NE 6 | E 9 | E 9 | S 3 | E 9 | E 9 | E 9 | SE 3 | E 3 | NE 10 | SE 3 | SSE 4 | SSE 5 | SSE 4 |
Wave Graph  | ||||||||||||||||||||
 kJ | 5 | 3 | 3 | 2 | 1 | 2 | 1 | 2 | 2 | 3 | 2 | 2 | 2 | 4 | 1 | 4 | 3 | 10 | 24 | 8 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-on | off | cross-off | cross | cross-off | cross | cross-on | cross | glassy | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 00:37AM0.80m | 1:19PM0.78m | 1:22AM0.74m | 2:12PM0.74m | 2:10AM0.69m | 3:11PM0.71m | 3:05AM0.66m | 4:14PM0.70m | 4:07AM0.65m | 5:15PM0.71m | 5:10AM0.66m | 6:09PM0.74m | ||||||||
Low Tide | 6:35PM0.11m | 6:57AM0.04m | 7:22PM0.18m | 7:44AM0.09m | 8:14PM0.24m | 8:36AM0.13m | 9:13PM0.28m | 9:34AM0.16m | 10:18PM0.30m | 10:35AM0.16m | 11:21PM0.29m | 11:33AM0.15m | 00:16AM0.26m | |||||||
 |  | | | | | |  |  |  | | | | | | | | | | | |
 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — |
 | 7:53 | — | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:49 | — |
mm | — | — | — | — | — | — | — | 5 | 4 | — | 4 | — | — | — | — | — | 8 | 6 | 2 | 5 |
Temp °C | 31 | 30 | 31 | 33 | 32 | 30 | 31 | 32 | 30 | 30 | 29 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
Feels °C | 31 | 31 | 33 | 35 | 33 | 33 | 33 | 33 | 32 | 31 | 29 | 31 | 30 | 30 | 34 | 31 | 31 | 31 | 30 | 32 |
Swell 1 Height (m) Direction Period (s) | NE 10 | — | E 11 | E 11 | SSE 3 | — | NE 6 | NE 6 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 3 | NE 10 | NE 9 | E 5 | — | NE 8 |
| kJ | 4 | — | 2 | 2 | 1 | — | 1 | 1 | 2 | 1 | 2 | 2 | 1 | 2 | 1 | 4 | 3 | 4 | — | 3 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 9 | NE 9 | — | — | NE 6 | — | — | NE 6 | N 9 | N 9 | N 9 | — | NE 10 | SSE 3 | E 9 | E 9 | NE 9 | NE 8 | E 8 |
| kJ | 1 | 1 | 3 | — | — | 1 | — | — | 1 | 2 | 1 | 2 | — | 4 | 1 | 2 | 1 | 3 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | — | NE 9 | — | N 9 | N 6 | E 10 | — | E 9 | N 9 | — | — | — | — | — | — | E 9 | — | E 8 | E 8 | — |
| kJ | — | 3 | — | 2 | 1 | 2 | — | 2 | 2 | — | — | — | — | — | — | 2 | — | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | SSE 5 | SSW 2 | — | — | — | N 3 | — | — | — | S 3 | S 3 | SSE 3 | SSE 3 | SE 3 | — | ESE 3 | SE 3 | SSE 4 | SSE 5 | SSE 4 |
| kJ | 5 | 1 | — | — | — | 1 | — | — | — | 3 | 1 | 2 | 2 | 2 | — | 1 | 3 | 10 | 24 | 8 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 316 | 316 | 325 | 325 | 316 | 325 | 328 | 376 | 938 | 369 | 239 | 328 | 1579 | 845 | 859 | 380 | 237 | 158 | 727 | 232 |
Best forecast wave conditions in South Florida | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the South Beach (Miami) Surf forecast
The above surf forecast table for South Beach (Miami) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at South Beach (Miami) can be found by selecting the local surf guide option on the grey menu. Our South Beach (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 (South Beach (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 South Beach (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.
South Beach (Miami) is 2 km (1 miles) from 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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