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Key Biscayne

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Key Biscayne Weather and climate

Data source：Meteostat
Update date：2025-09

Key Biscayne year round climate
  • Spring (March–May): Average 24.6–27.8°C, warm and comfortable climate, sunny, pleasant sea breeze. Common activities: Swimming, sunbathing, water sports, visiting Biscayne National Park. Suggested clothing: Light short-sleeved clothing, shorts, beachwear, sun protection clothing.
  • Summer (June–August): Average 28.4–29.8°C, hot and humid, more rainfall, occasional tropical storms. Common activities: Swimming, water sports, relaxing in the shade, visiting museums or indoor attractions. Suggested clothing: Light and breathable clothing, loose shorts or skirts, sun protection clothing, rain gear.
  • Autumn (September–November): Average 27.2–29.2°C, warm and comfortable climate, gradually decreasing rainfall, abundant sunshine. Common activities: Swimming, sunbathing, water sports, outdoor hiking. Suggested clothing: Light long-sleeved clothing, trousers or skirts, sun protection clothing.
  • Winter (December–February): Average 21.4–22.6°C, warm and comfortable, less rainfall, abundant sunshine, a comfortable season for sightseeing. Common activities: Swimming, sunbathing, water sports, bird watching. Suggested clothing: Light jacket, long-sleeved clothing, trousers or skirts.
Key Biscayne climatological average

Annual average temperature: approx. 26°C / Annual rainfall: approx. 1902 mm / Summer humidity: 70%–80% / Rainiest month: June

Key Biscayne monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
21.4°C
58.7
February
22.6°C
87.7
March
24.6°C
95.7
April
25.6°C
147.3
May
27.8°C
123.7
June
28.4°C
346
July
29.8°C
150
August
29.8°C
239
September
29.2°C
288.3
October
27.2°C
153.7
November
25.5°C
155.3
December
22.1°C
57.3
Key Biscayne weather for the next seven days
10/29
Wednesday
Heavy rain
30°C/24.7°C
10/30
Thursday
Partly Cloudy
27.1°C/21.7°C
10/31
Friday
Sunny
25.6°C/18.2°C
11/1
Saturday
Sunny
24.9°C/21.3°C
11/2
Sunday
Patchy rain nearby
27°C/24.3°C
11/3
Monday
Patchy rain nearby
25.7°C/24°C
11/4
Tuesday
Overcast
26.1°C/23.6°C

Key Biscayne FAQ

What is special about Key Biscayne?
Key Biscayne is special for its pristine white sandy beaches and clear blue waters, offering a tranquil and exclusive island lifestyle close to Miami. It's renowned for its lush state and county parks, including Bill Baggs Cape Florida State Park, which boasts a historic lighthouse. Visitors and residents enjoy abundant outdoor recreation such as water sports, biking, and exploring scenic waterfront properties.
Is Key Biscayne a wealthy area?
Key Biscayne is known as a affluent neighborhood, offering a lifestyle that appeals to those who enjoy country club amenities like tennis, golf, and sailing.
Is it worth going to Key Biscayne?
Yes, Key Biscayne is definitely worth visiting for its stunning natural beauty, including beautiful beaches and scenic parks, and offers a wonderfully relaxing atmosphere. It provides excellent access to nature and a wide array of outdoor activities like biking, boating, and fishing. While it presents a quieter, resort-style experience near Miami, it's ideal for those seeking a peaceful escape.
How do I spend a day in Key Biscayne?
To spend a day in Key Biscayne, you can start by visiting the Dante Fascell Visitor Center. Explore the island's natural beauty, perhaps by kayaking or paddleboarding through the mangroves. Snorkel through the coral reefs in Biscayne National Park, or visit the historic Cape Florida Lighthouse for panoramic views. Enjoying time on the sandy beaches of Crandon Park is also a great way to spend your day.
What are the top outdoor activities in Key Biscayne?
Key Biscayne is a paradise for outdoor enthusiasts. Popular activities include relaxing on the white sandy beaches, swimming in the clear blue waters, and engaging in water sports like kayaking, jet-skiing, windsurfing, and kiteboarding. Boating, fishing, and scuba diving in the nearby Biscayne National Park are also highly recommended. The island also offers great opportunities for biking, walking, and jogging, especially along the Rickenbacker Trail.