Your trips
Organize your trips easily with tabs
New York
Miami
Any date
+ Search
background

Miami in August: Weather, Average temperature and Climate

Discover the weather for Miami in August and if it’s a good time to travel (based on historical data).
Check flight prices to Miami on Avionero:
August

Weather in Miami in August 2025

OK Weather
Hot
🌧️
Rainy
🌊
Very warm water
August could be a good time to visit Miami, as the weather is generally fine. The average high temperature is around +88°F, and there are typically 1 sunny days in August. However, expect about 14 rainy days, and total monthly rainfall of approximately 151 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • August is usually the hottest month of the year in Miami;

Average weather

☀️
+88°F
Avg. max. temperature
+70°F
Min.
+95°F
Max.
151 mm
Total precipitation
75%
Avg. humidity
3 m/s
Avg. wind
1 ☀️
Sunny Days
2 ⛅️
Cloudy
14 🌦
Rainy
Our opinion: Miami has OK weather in August.

Average temperature in Miami in August

Here are the expected maximum, average and minimum temperatures in Miami for August based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in August is +91°F with a maximum of +95°F and a minimum of +77°F.

The average maximum temperature goes up 20% by the end of the month, compared with the beginning of the month, from +91°F to +95°F.

Is Miami warm or cold in August?

Miami is typically hot in August.

Maximum temperatures go up compared to the previous month from +88°F to +88°F. The minimum temperature also goes up from +79°F to +79°F.

Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.

August is the hottest month in Miami, here is the comparison with other months:

Water temperature in Miami in August

Water in Miami in August is Very warm. It varies from +85°F to +89°F, with an average of +87°F. This is almost similar to the air temperature, which averages +88°F.

The water temperature in August is one of the warmest of the entire year:

The warmest water temperatures in Miami are reached in August, when the average sea temperature rises to +87°F. The coldest water temperatures are in February, with an average of +72°F.

Can you swim in Miami in August?

You can definitely swim in Miami in August, the water is very warm (+87°F in average), and might even be unpleasant for ones who like it more fresh.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Don't forget sunscreen and a hat, it's going to be hot!

Climate in Miami in August

Miami weather looks like this, on average, in August and the surrounding months.
JulyAugustSeptember
Avg. temperature
+88°F+88°F+86°F
Min. temperature
+70°F+70°F+68°F
Max. temperature
+97°F+95°F+95°F
Rainfall
122 mm151 mm159 mm
Wind
3 m/s3 m/s3 m/s
Avg. water temperature
+85°F+87°F+85°F
Humidity
74%75%77%
Air pressure
1017 HPa1015 HPa1014 HPa
Sunny days
111
Cloudy days
222
Rainy days
141415
Snowy days
000

August typically has worse weather conditions compared to July. The temperature levels stay the same in the area of +88°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 122 mm to 151 mm. Humidity rises from 74% to 75%. The average wind speed doesn’t change much during August, staying around 3 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.

September brings much the same weather, it remains ok.

Wind

Wind speed in Miami in August based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Miami is gradually increasing during August, going from 2 m/s to 4 m/s over the course of the month.

Rain

Amount of rainfall in mm during August in Miami based on historical data.
Last Year
Historical Data
Total precipitation in August is about 255 mm, with a 97% chance of rain on a typical day. The maximum amount of rainfall per day is around 23 mm, which is considered light rain. August is a pretty wet month with over 30 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
August is one of the rainiest months in Miami, here is a comparison with other months, total mm:
Miami wettest month is June, where a typical day has a 43% chance of precipitation and 164 mm of rainfall per day. February, on the other hand, is the driest month with a mere 41% chance of precipitation and 45 mm of rainfall per day.

How was the weather last August in Miami?

This is the weather in Miami in August 2023:
1 August
🌧️
+91°F
2 August
☁️
+92°F
3 August
🌧️
+91°F
4 August
🌧️
+91°F
5 August
🌧️
+92°F
6 August
☁️
+93°F
7 August
☀️
+94°F
8 August
☁️
+94°F
9 August
☀️
+94°F
10 August
☀️
+94°F
11 August
🌧️
+94°F
12 August
🌧️
+93°F
13 August
☁️
+93°F
14 August
☁️
+93°F
15 August
🌧️
+93°F
16 August
☁️
+91°F
17 August
☁️
+91°F
18 August
☁️
+89°F
19 August
🌧️
+90°F
20 August
🌧️
+87°F
21 August
🌧️
+90°F
22 August
☁️
+91°F
23 August
☁️
+92°F
24 August
☀️
+91°F
25 August
☁️
+91°F
26 August
☀️
+91°F
27 August
🌧️
+92°F
28 August
🌧️
+91°F
29 August
🌧️
+92°F
30 August
🌧️
+93°F
31 August
🌧️
+95°F
In August 2023 Miami had 5 sunny days, 11 cloudy days, and 15 rainy days. The average maximum temperature was +91°F, with an absolute maximum of +95°F and a minimum of +88°F. The average humidity was 80%, with a maximum of 92% and a minimum of 66%. The average wind speed was 3 m/s, with a maximum of 11 m/s and a minimum of 0 m/s.
Are you planning a trip in August?

Climate Change Over the Years

This is how Miami climate has changed over the last 43 years.

The climate in Miami in August has not changed that much over the last 43 years.

The average temperature was the lowest in 1984 (+78°F) and the highest in 2023 (+85°F). The driest year was 2004 with only 707 mm of rainfall, and the wettest year was 2020 with 2595 mm.

FAQ

Frequently asked questions about the weather in Miami in August:

Is August a good time to visit Miami?

It’s always a good time to visit Miami, but the weather is changeable in August, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Miami in August?

Absolutely, August is hot in Miami. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Can you swim in Miami in August?

Yes, you can swim in Miami in August, the water is very warm, with temperature averaging at +87°F, but it's important to manage hydration and sun exposure.

Is Miami rainy in August?

Miami is often rainy in August. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Miami in August?

Usually, it’s not very sunny in Miami in August, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in USA

Check out the weather for other cities in USA.

Monthly weather in Miami

Source of the data

For this page, we’ve looked at the typical weather in Miami, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.