Where is Key Biscayne Beach?

Key Biscayne Beach is a beach in Key Biscayne, Florida.

What is the water temperature at Key Biscayne Beach?

As of October 29, 2026, the water temperature at Key Biscayne Beach in Key Biscayne, Florida is 82°F (28°C), measured by NOAA buoy 41122, 21.9 miles away.

How is Key Biscayne Beach rated?

Key Biscayne Beach in Key Biscayne, Florida has an average visitor rating of 4.6 out of 5, based on 730 reviews.

What amenities does Key Biscayne Beach have?

Visitor-listed amenities at Key Biscayne Beach include pet-friendly.

Updated June 15, 2026

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Photo: U. S. Coast Survey Base Marker, Key Biscayne by Tamanoeconomico (CC BY-SA 4.0) License

Key Biscayne Beach

Beach · Key Biscayne, Florida

4.6(730 reviews)

Read reviews

Use caution — an official advisory is in effect

Use caution

Use caution — an official advisory is in effect: a Coastal Flood Advisory is in effect for Coastal Broward County; Coastal Miami Dade County.

Water temp 82°F (28°C)

Live data from NOAA buoy 41122 (21.9 mi away), as of Oct 29, 8:00 AM UTC.

Why, sources & official advisories

A Coastal Flood Advisory is in effect for Coastal Broward County; Coastal Miami Dade County. — NWS Miami FL
Water temperature is 82°F, within the comfortable 70–86°F range. — NOAA buoy 41122, as of Oct 29, 8:00 AM UTC

No official beach-advisory feed for Florida yet — follow posted signs and local guidance.

Can I swim today? →Live map near here →

pet-friendly

Editor's Notes

Key Biscayne's beaches are anchored by the Cape Florida Lighthouse — at nearly 200 years old, the oldest standing structure in greater Miami — and by Crandon Park's calm, shallow, family-friendly water.

What’s swimming here?

Fish recorded within 2 km: French Grunt, Sailfin Molly, Sergeant-major and 13 more species.

16 fish species in 24 public records within 2 km of Key Biscayne Beach since 2000.

French Grunt Haemulon flavolineatum
4 records · 2025
Sailfin Molly Poecilia latipinna
2 records · 2026
Sergeant-major Abudefduf saxatilis
2 records · 2025
Checkerboard Frillfin Goby Bathygobius lacertus
2 records · 2025
Grey Snapper Lutjanus griseus
2 records · 2025
Jewel Fish Rubricatochromis letourneuxi
2 records · 2012
Mangrove Gambusia Gambusia rhizophorae
1 record · 2026
White Grunt Haemulon plumierii
1 record · 2025

Show all 16 species

Schoolmaster Snapper Lutjanus apodus
1 record · 2025
Dusky Damselfish Stegastes adustus
1 record · 2025
Redfin Needlefish Strongylura notata
1 record · 2025
Planehead Filefish Stephanolepis hispida
1 record · 2023
Atlantic Needlefish Strongylura marina
1 record · 2021
Eastern Mosquitofish Gambusia holbrooki
1 record · 2019
Striped Mullet Mugil cephalus
1 record · 2019
Red Lionfish Pterois volitans
1 record · 2016

Caught one? Make it a card.Snap your catch in Reelio and collect every species. Free on iPhone.

Data: GBIF.org occurrence records, CC0 and CC BY only (iNaturalist research-grade observations, GBIF dataset). Common names: USGS NAS; GBIF.org (The IUCN Red List of Threatened Species). Non-native flags: USGS NAS. These are sightings and specimens people reported, not a survey: a fish missing from the list may still live here.

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Frequently asked questions

Where is Key Biscayne Beach?: Key Biscayne Beach is a beach in Key Biscayne, Florida.
What is the water temperature at Key Biscayne Beach?: As of October 29, 2026, the water temperature at Key Biscayne Beach in Key Biscayne, Florida is 82°F (28°C), measured by NOAA buoy 41122, 21.9 miles away.
Can you swim at Key Biscayne Beach?: Use caution — an official advisory is in effect: a Coastal Flood Advisory is in effect for Coastal Broward County; Coastal Miami Dade County. Checked October 29, 2026.
How is Key Biscayne Beach rated?: Key Biscayne Beach in Key Biscayne, Florida has an average visitor rating of 4.6 out of 5, based on 730 reviews.
What amenities does Key Biscayne Beach have?: Visitor-listed amenities at Key Biscayne Beach include pet-friendly.

Pack smarter for Key Biscayne Beach

Location & Contact

Key Biscayne, FL 33149

Key Biscayne, Florida 33149

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🏖️ Best times & visiting tips

›Arrive early for best parking and beach spot selection
›Check for lifeguard schedules and swim only in designated areas
›Bring reef-safe sunscreen to protect marine life
›Watch for beach flags indicating water conditions

Features & amenities

Amenities

🐾 Dog-friendly

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