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Sea temperatures, water sports and vacation activities near Key Biscayne, United States

Water temperatures throughout the year and general information about Key Biscayne...

Key Biscayne is a beach in the United States. The water temperature around Key Biscayne has average variability year round. The temperature ranges from 23.6°C (74.5°F) in February up to 29.8°C (85.6°F) in the month of September, as shown in the interactive table below. The average water temperature throughout the year is 27°C (80°F) and the best time for water activities is early fall, since Key Biscayne is located in the northern hemisphere.

Hover over the bars to see temperature for each month in Celsius and Fahrenheit.

What is the current water temperature at Key Biscayne?

The current water temperature in the month of September at Key Biscayne is ca:
30°C (86°F)

Are there surf spots close by?

Yes, there are a few surf spots in proximity to Key Biscayne. The closest one is South Beach, which is 5.6km (9miles) away from Key Biscayne. Click here for directions and to check out more information on South Beach and its water temperature. Other good surfspots near Key Biscayne are Harbor House, which is ca 14.4km (9miles) away, and Haulover Inlet North Side, located 14.6km (9miles) from Key Biscayne.

Are there any other sandy beaches close by?

There are several beautiful beaches in close proximity to Key Biscayne. The closest one is South Beach, which is only 6.4km (4miles) away from Key Biscayne. Another beautiful beach near Key Biscayne is Miami Beach, which is ca 7km (4.3miles) away.

What kind of wetsuit is recommended for Key Biscayne?

The sea temperature at Key Biscayne is extremely warm, reaching up to 30°C (86°F) in the months of August, September, and October. During this time, in the early fall, a wetsuit is typically not required for surfing, swimming, snorkelling, or scuba diving at Key Biscayne. Nevertheless, during January, February, and March, temperatures reach lows of approximately 24°C (74°F). During this season, a thin top or a jumpsuit might be required to stay in the water for a significant amount of time, but some might even be fine without a rashguard or light top . For very windy conditions and cold mornings/evenings, it might be advisable to carry a thin wetsuit or jumpsuit.

How is the diving and fishing near Key Biscayne?

Due to significant water temperature changes throughout the year, fishing and Scuba diving conditions change quite a bit depending on the time of the year. The temperature ranges from 24 to 29°C (74-83°F) during January, February, and March. Bigeye Tuna, Blackfin Tuna, King Mackerel, Spotted Seatrout, and White Marlin love this temperature range. The conditions typically change during fall when temperatures range from 25 to 30°C (77-86°F). Fish that love this water temperature include: Bonefish, Permit, Red Drum, and Tarpon.

Directions to Key Biscayne: How do I get there?

Please follow the directions in the map below.

Fun facts about Key Biscayne...

Do you know what the Mitchell Dome , An Muileann gCearr in Ireland, and the city Conselice in Italy have in common with Key Biscayne? Click on the links to find out...