Home
Weather Dublin
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
Home / Weather News /

New world record? 38.4°C water temperature in Florida Keys

15:00
27 July 2023

New world record?
38.4°C water temperature in Florida Keys

key largoCoral reefs in John Pennekamp State Park, Key Largo, Florida, USA.

The waters off the Florida Keys may have detected a new record high sea surface temperature.

It has been incredibly hot in South Florida this year, both on land and in the water. However, an ocean buoy just north of Key Largo in the Florida Keys just recorded an extraordinarily high sea temperature.

The Manatee Bay buoy in the Florida Keys measured a temperature of 38.4°C (101.1°F) at 6 pm local time on Monday 24th July. The buoy is located north of Key Largo and records water temperatures at a depth of 1.5 metres.

Settings for external content

Privacy policy

What makes this measurement so incredible is that if verified, it will shatter the previous world record of 37.6°C (99.7°F) by nearly a whole degree, which was recorded in Kuwait Bay in the Persian Gulf.

Three other buoys nearby measured temperatures above 36.5°C (98°F), indicating that the Manatee Bay measurement is likely accurate. Many other stations off the coast of southern Florida also experienced alarmingly high water temperatures.

The ocean is currently the equivalent to a hot tub off the coast of Florida, and scientists are concerned about the impacts this marine heat wave will have on the delicate ecosystem in the Keys. Coral bleaching is already underway at a time of year when the corals should be full of colour. This heat wave is also impacting land as well.

More on the topic
Map showing wind radar data for a tropical storm near New Zealand. A distinct storm centre with high wind speeds. New Zealand lies to the south of the system.
Friday 10 April 2026

Vaianu brings heavy rain

Tropical storm threatens New Zealand
Split image showing a coastal sunrise over the sea with orange horizon on hte left and sunlit stone abbey ruins on green grass under a blue sky on the right.
Sunday 12 April 2026

Your weather - Your shots

A spring break between storms
On the left, a car on a flooded road; on the right, the weather radar showing heavy rain.
Monday 20 April 2026

Up to 80 mm in a day

Record rainfall in eastern Germany
All weather news
This might also interest you
Split image showing aerial flooding in a town with muddy water covering roads on the left, and a rural road on the right blocked by heavy snowfall with vans stopped and a person walking in snow.
Tuesday 27 January 2026

Storm Chandra

Flooding, gales, and heavy snow
Split image showing strong winds over the UK on a forecast map and widespread rain and snow on a weather radar map.
Tuesday 27 January 2026

Severe gales & heavy rain

Storm Chandra makes impact
Split image showing a person in a yellow jacket struggling against strong winds and heavy rain on a street at night on the left, and an Irish wind forecast map on the right with red and purple shading, gusts up to 75 mph, and a wind warning icon, divided by a curved white line.
Saturday 24 January 2026

On this day...

Historic Storm Éowyn arrives
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwitteryouTubelinkList