Miami Weather in August
During August, Miami experiences very high daytime temperatures of 33°C (91°F) and cooler nights around 25°C (77°F). As the wettest month of the year, expect frequent rainfall.
Rainfall in Miami in August
As part of the rainy season, Miami sees around 25 days of rain in August, with an average of 244 mm (9.6 in). The rainy season here brings regular, substantial showers. It's worth being prepared for rain on most days you're out.
Temperature in Miami in August
In August, expect very high temperatures in Miami, with highs of 33°C (91°F) and lows of 25°C (77°F) at night. For most visitors, the main thing to prepare for is the heat during the day. At 25°C (77°F) overnight, it stays warm after dark. Light, breathable clothing and good airflow in your room make a noticeable difference. Note that these temperatures are average, but some days may be hotter. Dress in cool, breathable fabrics to stay comfortable in the heat.
Sunshine in Miami in August
The days are predominantly sunny, with an estimated total of around 263 hours of sunshine. Rain is often only seen in the afternoon or evening, leaving clear skies for most of the day. This results in rainy months that still feel bright and are suitable for travel.
Wind Speed in Miami in August
Wind speeds average 4 m/s (8 knots) during August. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.
Average water temperature in August
At 28°C (82°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, November and December typically offer the best weather for Miami.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Miami's climate page.
Miami Temperature in August
Min Temperature
25°C (77°F)
Max Temperature
33°C (91°F)
Water Temperature
28°C (82°F)
Chance of Rain
83%
Precipitation
244 mm (9.6 in)
Rainy days
25 days
Humidity
76%
Windspeed
4 m/s (8 knots)
Sunshine
263 hours
Percentage Sunshine
71%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Miami typically stay consistent throughout August, with daily highs averaging around 33°C (91°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Miami in August
Browse day-by-day weather records for Miami spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Miami historical weather extremes in August
Based on weather observations in Miami between 1976 and 2025, these are the recorded extremes during August.
- The warmest day in August was on August 15, 2024, with a maximum of 37°C (99°F).
- The coldest August day was on August 19, 1976, with a maximum of 25°C (77°F).
- Miami registered its coldest August night on August 8, 2006, with temperatures dropping to 21°C (70°F).
Best Places in the United States of America in August
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →
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What to Wear in Miami in August
Warm weather calls for comfortable, breathable clothing in August. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 28°C (82°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Miami in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Miami's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Miami climate overview or explore weather in the United States of America.
