Miami Weather Averages

Miami, Florida enjoys warm and sunny weather year round. While the city's climate does get stormy from around June to October, even then the skies are mainly clear.

This page gives detailed information on the annual temperature, precipitation, sun, humidity, wind and storm averages for Miami.

The numbers here are historical averages based on climate data gathered at the Miami International Airport, located five miles west of downtown Miami.

Temperature Weather iconTemperature

84 °F annual average high 29 °C
70 °F annual average low 21 °C

Miami's coldest days of the year usually occur in mid January when the daily maximum temperature averages 76 degrees Fahrenheit (25 degrees Celsius) and the minimum averages 60 °F (15 °C).

The year's hottest days are normally in late July and early August. The average temperature peaks then with daily highs of 91 °F (33 °C) and nighttime lows of 78 °F (25 °C).

281 days 80 °F max. or more (27 °C)
48 days 60 °F min. or less (16 °C)

Miami averages 80 days a year when the thermometer reaches into the 90s °F (over 32 °C). But the temperature normally doesn't climb above 100 °F (38 °C).

The thermometer dips to 50 °F (10 °C) or below on an average of ten nights a year. Only about once a decade does Miami get as cold as 32 °F (0 °C).

Rainy Weather iconRain

61.9 in total precipitation 1572 mm
135 days with rainfall

September is usually the wettest month of the year in Miami, while January is the driest.

Sunny Weather iconSun

70 % sunshine
74 days clear skies

The sun's rays reach the ground in Miami during 70 percent of daylight hours on average year round, for a total of 3106 hours annually. Typically on 74 days a year the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in Miami averages 12 hours and 9 minutes a day. The shortest days of the year in mid December have 10 hours and 32 minutes of daylight. The year's longest days in mid June last 13:45 from sunrise to sunset.

Humid Weather iconHumidity

73 % average humidity

The annual average for relative humidity in Miami ranges throughout the day from 84 percent at 7:00 am to 61 percent at 1:00 pm standard time.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 81 84 84 68 61 62 71 77

Windy Weather iconWind

9.2 mph wind speed average 14.8 kph

April is usually the windiest month for Miami, and the wind is calmest during July and August.

Stormy Weather iconStorms

19 days precipitation of 1 inch (25 mm) or more
72 days with thunderstorms a year
8 % chance a named storm makes landfall

Thunderstorms can appear over Miami during any month, but are most frequent during July and August.

In any year, there's a 6 percent probability that a hurricane will reach land in Miami-Dade county, which includes Miami. For major hurricanes of category 3 to 5, the likelihood drops to three percent. Named storms usually arrive during the months of June to November, while hurricanes are generally restricted to August, September and October.

The chances that a wind gust reaches 40 miles per hour (64 kilometres an hour) or greater is 33 percent a year. Intense hurricane force winds that top 115 mph (185 kph) have a four percent probability of blasting the county.

Reference

These weather data are long-term historical averages provided by the National Climatic Data Center of the United States. The temperature and precipitation numbers are 1981-2010 normals while the humidity and thunderstorm statistics are 1961-1990 normals. The named storm and wind gust probability information comes from United States Landfalling Hurricane Probability Project of Colorado State University and Bridgewater State University.

Miami Weather
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