Weather in Miami in August 2025
- August is usually the hottest month of the year in Miami;
Average weather
Average temperature in Miami in August
The temperature in August is +33°C on average, with a range between a maximum of +35°C during the day and a minimum of +25°C at night.
The average maximum temperature goes up 20% by the end of the month, compared with the beginning of the month, from +33°C to +35°C.
Is Miami warm or cold in August?
Miami is typically hot in August.
Maximum temperatures go up compared to the previous month from +31°C to +31°C. The minimum temperature also goes up from +26°C to +26°C.
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 +30°C to +31°C, with an average of +30°C. This is almost similar to the air temperature, which averages +31°C.
The water temperature in August is one of the warmest of the entire year:
Can you swim in Miami in August?
Climate in Miami in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +31°C | +31°C | +30°C | ||||
| Min. temperature | ||||||
| +21°C | +21°C | +20°C | ||||
| Max. temperature | ||||||
| +36°C | +35°C | +35°C | ||||
| Rainfall | ||||||
| 122 mm | 151 mm | 159 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +30°C | +30°C | +30°C | ||||
| Humidity | ||||||
| 74% | 75% | 77% | ||||
| Air pressure | ||||||
| 1017 HPa | 1015 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 1 | ||||
| Cloudy days | ||||||
| 2 | 2 | 2 | ||||
| Rainy days | ||||||
| 14 | 14 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August typically has worse weather conditions compared to July. The temperature levels stay the same in the area of +31°C 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
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
How was the weather last August in Miami?
Climate Change over Years
The climate in Miami in August has not changed much over the last 43 years.
The average temperature was the lowest in 1984 (+26°C) and the highest in 2023 (+30°C). The driest year was 2004 with only 707 mm of rainfall, and the wettest year was 2020 with 2595 mm.
FAQ
Is August a good time to visit Miami?
Can you sunbathe in Miami in August?
Can you swim in Miami in August?
Is Miami rainy in August?
Is it sunny in Miami in August?
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.