Key Biscayne Weather in July
July in Key Biscayne brings very high temperatures, with highs of 31°C (88°F) and nights dropping to 26°C (79°F). Rainfall is on the higher side this month, averaging around 163 mm (6.4 in), so keep a rain jacket handy.
Rainfall in Key Biscayne in July
Typically, you can expect about 23 days of rain this month, with 163 mm (6.4 in) on average. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Key Biscayne in July
July in Key Biscayne brings very high temperatures, with highs of 31°C (88°F) and nights around 26°C (79°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights are warm at 26°C (79°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Key Biscayne in July
The city usually sees around 308 hours of sunlight, indicating many sunny days — a great month for sightseeing.
Wind Speed in Key Biscayne in July
July sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.
Average water temperature in July
The water temperature is 28°C (82°F), which most people find very comfortable. A good month for swimming and water sports.If you prefer enjoying temperate temperatures and rain-free days, January, February, March, November and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 Key Biscayne's climate page.
Key Biscayne Temperature in July
Min Temperature
26°C (79°F)
Max Temperature
31°C (88°F)
Water Temperature
28°C (82°F) *
Chance of Rain
78%
Precipitation
163 mm (6.4 in)
Rainy days
23 days
Humidity
75% *
Windspeed
4 m/s (8 knots) *
Sunshine
308 hours *
Percentage Sunshine
73% *
Best Places in the United States of America in July
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 July →
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What to Wear in Key Biscayne in July
Warm weather calls for comfortable, breathable clothing in July. 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. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Key Biscayne in July
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 Key Biscayne's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Key Biscayne climate overview or explore weather in the United States of America.
