May Weather in Miami, United States

Last updated: June 24, 2025

In May, the average temperature in Miami, United States hovers around 22°C (71°F). You can expect a range from a cool 5°C (42°F) to a sweltering 37°C (99°F). Additionally, precipitation is light, averaging just 10 mm (0.4 in) over 3 days, while the average humidity remains comfortably at 40%.

May Temperature in Miami

In May in Miami, the average temperature is 22°C (71°F), with maximums reaching up to 37°C (99°F) and minimums dropping as low as 5°C (42°F). This wide temperature range makes it essential for travelers to pack accordingly to enjoy their stay comfortably.

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

The chart illustrates May 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, May typically has an average temperature of 22°C (71°F), with highs reaching up to 37°C (99°F) and lows dropping to around 5°C (42°F).

Data source: Temperature data for Miami generated using information from the Copernicus Climate Change Service.

May Precipitation in Miami

In Miami in May, the precipitation amount is 10 mm (0.4 in) over a period of 3 days.

May Precipitation Trends in Miami

The chart displays monthly precipitation patterns in Miami, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Miami, May typically receives around 10 mm (0.4 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Miami

In Miami in May, humidity is 40%. With an average temperature of 22°C (71°F), this humidity feels like a comfortable embrace, making it pleasant for traveling as the air is crisp yet inviting, allowing for enjoyable exploration without feeling overly sticky or oppressive.

May Average Humidity in Miami

This chart illustrates the average monthly humidity levels in Miami, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Miami is approximately 40%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Miami

In Miami in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Miami.

Maximum UV Index Levels in Miami for May

The chart shows the monthly maximum UV Index (UVI) for Miami in May, 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 May, the maximum UV index in Miami typically reaches 12, which falls under the extreme exposure category.

Data source: Miami May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	56 mm (2.2 inches)	76%	moderate
February Weather	8°C (48°F)	60 mm (2.4 inches)	79%	high
March Weather	12°C (54°F)	44 mm (1.7 inches)	67%	very high
April Weather	18°C (64°F)	4 mm (0.2 inches)	55%	extreme
May Weather	22°C (71°F)	10 mm (0.4 inches)	40%	extreme
June Weather	28°C (83°F)	5 mm (0.2 inches)	33%	extreme
July Weather	28°C (83°F)	76 mm (3.0 inches)	34%	extreme
August Weather	28°C (82°F)	47 mm (1.8 inches)	48%	extreme
September Weather	25°C (77°F)	44 mm (1.7 inches)	64%	very high
October Weather	18°C (65°F)	37 mm (1.4 inches)	67%	very high
November Weather	13°C (56°F)	27 mm (1.1 inches)	77%	high
December Weather	8°C (46°F)	42 mm (1.6 inches)	82%	moderate