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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 26°C (79°F), with a minimum dipping as low as 13°C (55°F) and a scorching maximum reaching 41°C (105°F). Expect 66 mm (2.6 in) of precipitation spread over approximately 10 days, all while enjoying a notable average humidity of 78%.

August Temperature in Miami

In August in Miami, the average temperature is 26°C (79°F). Maximums can reach 41°C (105°F), and minimums can be as low as 13°C (55°F). Be prepared for a wide range of temperatures when traveling to Miami during this month.

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 26°C (79°F), with highs reaching up to 41°C (105°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec373850576777807872584841
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 precipitation amount is 66 mm (2.6 in) over the course of 10 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 66 mm (2.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec211345407348436648611420
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 78%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket wrapping around you, making travel a bit sluggish as the air hangs thick, leaving you in need of frequent breaks to hydrate and find 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 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%64%70%78%81%82%78%72%73%81%81%
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.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110754
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 Weather3°C (37°F)21 mm (0.8 inches)75%moderate
February Weather3°C (38°F)13 mm (0.5 inches)76%high
March Weather10°C (50°F)45 mm (1.8 inches)64%very high
April Weather14°C (57°F)40 mm (1.6 inches)70%very high
May Weather19°C (67°F)73 mm (2.9 inches)78%extreme
June Weather25°C (77°F)48 mm (1.9 inches)81%extreme
July Weather27°C (80°F)43 mm (1.7 inches)82%extreme
August Weather26°C (79°F)66 mm (2.6 inches)78%extreme
September Weather22°C (73°F)48 mm (1.9 inches)72%very high
October Weather14°C (58°F)61 mm (2.4 inches)73%high
November Weather9°C (48°F)14 mm (0.5 inches)80%moderate
December Weather5°C (41°F)20 mm (0.8 inches)81%moderate

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