Surf Forecasts:
Miami surf forecast from 20 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 6AM (local time) - 7ft (2.1m), 8s period, SE swell with 477 kJ wave energy.
Best Forecast Surf Conditions for Miami this week:
The most powerful waves expected at Miami in the next 16 days are 2.1m 8s and forecast to arrive on Thursday (Aug 20) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 10s period and expected on Thursday (Aug 20) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 6AM (Thu 20th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Miami over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – this 16-day window is a tough one for Miami. We’re looking at a long stretch of poor surf conditions with no real standouts. The whole period is marked by onshore and cross-onshore winds from the SSE and ESE, which will keep the ocean choppy and lumpy. There are no good options on offer, so if you’re set on a paddle, you might be waiting a while.
The first bit of swell shows up on Thursday, August 20th, with a 7ft swell from the SE at a short 8 seconds. That might sound meaty, but with a 16-19 mph cross-on breeze, it’s just a messy, blown-out 7ft. The combined wave energy is moderate (470), but it’s all for nothing. Conditions stay poor right through the end of the month. The swell drops a little, but the wind never really lets up.
We have a solid 10-day gap from the start with no recommendations. The closest we get to something rideable is around Sunday, August 30th, where the wind eases a little to 9-12 mph from the ESE. We’re looking at a 5ft swell from the E, but the period is still short at 7 seconds, and the water is still lumpy. It’s a slight improvement, but still not worth getting excited about.
The last few days into early September are more of the same: 5ft to 7ft swells, all with short periods and onshore winds. The water temperature is about average for the time of year. For a beach and reef setup like Miami, this is a classic case of the wind killing the quality. If you’re a kite surfer, the consistent wind and medium swell might look interesting, but for a paddle surfer, this is a write-off. The pattern is persistent, but it can always change. Keep an eye on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Fri morning, min 23°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 28°C on Sun morning, min 24°C on Sat night). Mainly fresh winds. | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
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) | SE 7 | SE 8 | SE 8 | SE 7 | SE 8 | SE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 472 | 470 | 446 | 392 | 297 | 248 | 240 | 249 | 214 | 192 | 158 | 171 | 149 | 259 | 375 | 363 | 353 | 280 | 319 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 9:29AM1.59m | 9:38PM1.49m | 10:58AM1.50m | 11:21PM1.43m | 12:38PM1.54m | 00:56AM1.51m | 1:41PM1.66m | 1:53AM1.66m | 2:23PM1.81m | 2:34AM1.82m | 2:57PM1.94m | ||||||||
Low Tide | 3:00AM0.55m | 3:39PM0.80m | 4:13AM0.68m | 5:19PM0.86m | 5:57AM0.70m | 6:57PM0.79m | 7:17AM0.61m | 7:54PM0.64m | 8:07AM0.47m | 8:33PM0.48m | 8:46AM0.33m | 9:07PM0.34m | |||||||
 |  | |  | | | |  | | | | |  | | | | | | | |
 | — | 5:26 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — |
 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:21 | — | — | 5:21 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 24 | 27 | 26 | 25 | 28 | 27 | 25 | 27 | 26 | 25 | 28 | 27 | 25 | 27 | 27 | 25 | 27 | 26 | 25 |
Feels °C | 24 | 24 | 23 | 24 | 27 | 26 | 26 | 27 | 26 | 26 | 27 | 26 | 27 | 26 | 26 | 25 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | NNE 11 | N 10 | NNE 10 | NNE 10 | N 10 | N 10 | N 9 | N 8 | N 8 | N 8 | N 8 | N 8 | SE 8 | NNE 8 | NNE 9 | NNE 9 | NNE 10 | NNE 8 | NNE 10 |
| kJ | 11 | 16 | 9 | 9 | 7 | 2 | 6 | 6 | 6 | 5 | 5 | 5 | 11 | 7 | 8 | 8 | 9 | 7 | 19 |
Swell 2 Height (m) Direction Period (s) | N 10 | N 11 | N 9 | N 9 | S 14 | N 8 | S 12 | S 12 | N 8 | N 12 | N 11 | N 11 | NNE 8 | N 11 | N 11 | N 10 | N 11 | N 10 | — |
| kJ | 8 | 2 | 2 | 2 | 4 | 1 | 3 | 3 | 6 | 3 | 2 | 2 | 7 | 2 | 2 | 2 | 2 | 2 | — |
Swell 3 Height (m) Direction Period (s) | — | N 11 | S 16 | — | N 10 | S 13 | N 9 | S 12 | — | N 12 | — | — | N 10 | — | — | — | S 9 | NE 11 | S 18 |
| kJ | — | 2 | 5 | — | 2 | 3 | 6 | 3 | — | 3 | — | — | 2 | — | — | — | 2 | 5 | 6 |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 8 | SE 8 | SE 7 | SE 8 | SE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 |
| kJ | 472 | 470 | 446 | 392 | 297 | 248 | 240 | 249 | 214 | 192 | 158 | 171 | 149 | 259 | 375 | 363 | 353 | 280 | 319 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1053 | 1029 | 2066 | 1053 | 869 | 2744 | 1033 | 870 | 2168 | 1707 | 1667 | 1694 | 49 | 1619 | 1640 | 1619 | 1619 | 1619 | 1619 |
Best forecast wave conditions in Rio Grande Do Norte | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Miami surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Miami Surf forecast
The above surf forecast table for Miami provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Miami can be found by selecting the local surf guide option on the grey menu. Our 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 (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 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.
Miami is 8 km (5 miles) from the city of Natal. If you plan a holiday in Rio Grande Do Norte, look for hotels and other accommodation in Natal. Natal has rooms for a wide range of budgets as well as car hire and transport links.
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