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.