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August Weather in Miami, United States

Last updated: June 24, 2025

In August, the average temperature in Miami, United States hovers around 28°C (82°F), creating a comfortable yet warm atmosphere. However, be prepared for fluctuations, as temperatures can dip to a minimum of 15°C (59°F) and soar as high as 41°C (105°F). Visitors should also note that precipitation is expected, with an average of 47 mm (1.8 in) over 11 days, while the average humidity remains at a moderate 48%.

August Temperature in Miami

In August in Miami, the average temperature is 28°C (82°F), with maximums soaring to 41°C (105°F) and minimums dipping as low as 15°C (59°F). Travelers should prepare for a warm climate, ideal for outdoor activities, but also bring layers for cooler evenings.

August Weather in Miami: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Miami, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Miami, August typically has an average temperature of 28°C (82°F), with highs reaching up to 41°C (105°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec454754647182838277655546
Data source: Temperature data for Miami generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Miami

In Miami in August, the total precipitation amount is 47 mm (1.8 in), which falls over the course of 11 days.

August Precipitation Trends in Miami

The chart displays monthly precipitation patterns in Miami, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Miami, August typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec5660444105764744372742
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Miami

In Miami in August, humidity is 48%. With an average temperature of 28°C (82°F), this humidity feels like a warm embrace, making it comfortable for traveling as long as you stay hydrated and take breaks in the shade.

August Average Humidity in Miami

This chart illustrates the average monthly humidity levels in Miami, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Miami is approximately 48%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%79%67%55%40%33%34%48%64%67%77%82%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Miami

In Miami in August, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Miami.

Maximum UV Index Levels in Miami for August

The chart shows the monthly maximum UV Index (UVI) for Miami in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Miami typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479111212121110864
Data source: Miami August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How August Weather in Miami Compares to Other Months

Weather in Miami varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Miami, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Miami, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)56 mm (2.2 inches)76%moderate
February Weather8°C (48°F)60 mm (2.4 inches)79%high
March Weather12°C (54°F)44 mm (1.7 inches)67%very high
April Weather18°C (64°F)4 mm (0.2 inches)55%extreme
May Weather22°C (71°F)10 mm (0.4 inches)40%extreme
June Weather28°C (83°F)5 mm (0.2 inches)33%extreme
July Weather28°C (83°F)76 mm (3.0 inches)34%extreme
August Weather28°C (82°F)47 mm (1.8 inches)48%extreme
September Weather25°C (77°F)44 mm (1.7 inches)64%very high
October Weather18°C (65°F)37 mm (1.4 inches)67%very high
November Weather13°C (56°F)27 mm (1.1 inches)77%high
December Weather8°C (46°F)42 mm (1.6 inches)82%moderate

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