Surf Forecasts:
Miami surf forecast from 11 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 12AM (local time) - 7ft (2.1m), 7s period, SE swell with 371 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 7s and forecast to arrive on Wednesday (Aug 12) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 9s period and expected on Saturday (Aug 15) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12AM (Wed 12th Aug) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Miami over the next 16 days.
The Lowdown
Alright, this is Rusty. Let me be straight with you – it’s a tough run ahead for Miami.
Honestly, there’s hardly a wave worth paddling out for across this whole 16-day stretch. The first few days are basically a write-off. The swell coming in is weak and short-period, mostly around 7 seconds, and the wind is never your friend – it’s cross-onshore from the SSE to SE, holding steady at 12 to 16 mph. That’s a recipe for choppy, blown-out surf. The energy levels are in the moderate range (162 to 291 for the most part), but the conditions are just plain poor. You’d have a better time flying a kite.
The water temps are running about average for this time of year, so no real surprise there. But the waves? Don’t count on them.
Around the weekend of the 15th and 16th, the swell period starts to stretch a bit – 9 to 12 seconds on Saturday and Sunday morning. That’s groundswell energy coming through, but it’s still tiny (2 ft to 3 ft) and the wind is still putting a chop on it. Sunday’s energy jumps up to 374, but it’s still not coming together.
Early the following week, the 17th and 18th, you’ll see the swell size push above 7 ft on Monday. That’s a bit more push, but the period drops right back down to a weak 7 seconds. The wind does go offshore for Tuesday morning and Wednesday morning (light ESE), which is a big positive – but the wave quality is still listed as poor.
Through the second week, into late August (the 24th, 25th, 26th), the energy builds into the 400s (454 to 461) – that’s moderate to strong wave energy. But it’s all from the ESE at 8 seconds, with a stiff cross-onshore wind again. The size sits between 6 ft and 7 ft, but it’s sloppy.
The bottom line: there is no standout period here. If you’re desperate, the cleanest chance might be those mornings around the 18th and 19th when the wind turns onshore – but at 5 ft to 6 ft with that short period, it’s not going to be thrilling. It’s a long, blank stretch, especially if you’re used to Miami firing on a proper SE groundswell. Forecasts can change, but right now, I’d save the wax.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Warm (max 27°C on Tue morning, min 21°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Fri night. Warm (max 27°C on Fri morning, min 23°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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) | ESE 7 | E 8 | ESE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 11 | ESE 13 | ESE 12 | ESE 12 | ESE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 125 | 91 | 243 | 371 | 295 | 287 | 301 | 248 | 268 | 261 | 224 | 217 | 212 | 78 | 130 | 261 | 233 | 222 | 222 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross-on | 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 |
High Tide | 2:56AM2.11m | 3:27PM2.22m | 3:44AM2.24m | 4:10PM2.28m | 4:28AM2.33m | 4:51PM2.30m | 5:11AM2.35m | 5:31PM2.26m | 5:53AM2.31m | 6:09PM2.19m | 6:32AM2.23m | 6:44PM2.08m | |||||||
Low Tide | 9:12AM0.02m | 9:38PM0.07m | 9:59AM-0.06m | 10:21PM-0.02m | 10:43AM-0.09m | 11:02PM-0.06m | 11:25AM-0.05m | 11:41PM-0.05m | 12:05PM0.03m | 00:20AM0.00m | 12:43PM0.15m | 00:57AM0.10m | |||||||
 |  |  |  | | | | | | | | | | | | |  | |  | |
 | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — | 5:26 | — | — |
 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — |
mm | 2 | 2 | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | 1 | — | — |
Temp °C | 25 | 27 | 27 | 25 | 27 | 27 | 24 | 27 | 27 | 24 | 27 | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 25 |
Feels °C | 27 | 26 | 26 | 24 | 24 | 25 | 24 | 26 | 26 | 24 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | E 8 | NNE 9 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 10 | ESE 9 | ESE 11 | ESE 13 | ESE 12 | ESE 12 | ESE 12 |
| kJ | 125 | 71 | 8 | 22 | 10 | 20 | 19 | 9 | 8 | 8 | 8 | 9 | 18 | 78 | 130 | 261 | 233 | 222 | 153 |
Swell 2 Height (m) Direction Period (s) | N 10 | NNE 8 | N 11 | S 16 | NE 9 | S 17 | SE 16 | SSE 17 | SSE 15 | SSE 16 | SSE 15 | SSE 15 | SSE 15 | NNE 10 | NNE 9 | SSE 14 | NNE 9 | NNE 9 | SSE 15 |
| kJ | 8 | 7 | 9 | 5 | 3 | 5 | 11 | 27 | 23 | 25 | 23 | 21 | 21 | 18 | 16 | 21 | 16 | 16 | 43 |
Swell 3 Height (m) Direction Period (s) | NE 9 | N 11 | N 9 | — | N 8 | N 9 | — | — | — | S 16 | S 10 | S 9 | S 8 | SSE 16 | SSE 15 | N 8 | SSE 17 | SSE 16 | NNE 9 |
| kJ | 3 | 10 | 2 | — | 1 | 1 | — | — | — | 20 | 2 | 6 | 5 | 25 | 44 | 5 | 55 | 50 | 15 |
Wind waves Height (m) Direction Period (s) | — | SE 7 | ESE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 5 | ESE 5 | ESE 5 | ESE 5 | ESE 5 | ESE 6 |
| kJ | — | 91 | 243 | 371 | 295 | 287 | 301 | 248 | 268 | 261 | 224 | 217 | 212 | 75 | 66 | 74 | 86 | 97 | 222 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 66 | 1707 | 1707 | 1667 | 1667 | 1694 | 1532 | 1029 | 1619 | 135 | 823 | 1640 | 29 | 870 | 1640 | 1033 | 870 | 2085 | 1069 |
Best forecast wave conditions in Rio Grande Do Norte | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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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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