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
Split weather graphic with wind radar on the left and weather radar on the right. Strong wind fields and heavy precipitation over Central Europe. Depiction of an approaching storm depression.
Wednesday 7 January 2026

Wind, rain, and snow

Storm Goretti moving in
Split image showing a night-time UK precipitation radar on the left with snow and rain icons and blue bands, and a wind speed forecast on the right with colour-coded winds, mph labels, and a windsock icon, divided by a curved white line.
Wednesday 31 December 2025

Wet and windy for some

New Year's Eve outlook
Split image shows high level wind warnings during Storm Éowyn on the left, and noctilucent clouds on the right.
Tuesday 30 December 2025

January to June

2025: The year in weather
All weather news
This might also interest you
Weather map of the UK and Ireland showing scattered showers with cloudy patches across much of the region, especially around western and northern areas. Sunshine symbols appear over London, Cardiff, and parts of southern England, while temperatures range from 17°C to 18°C in most places. Areas of heavier rain are visible over the Atlantic to the west.
Friday 29 August 2025

Breakfast brief

Unsettled conditions into the weekend
Outline of Santa Claus with a yellow and white hat, "Ho-Ho-Ho" next to the outline above a Christmas tree.
Thursday 25 December 2025

Merry Christmas!

Wishes from Weather & Radar
Illustration of white and yellow fireworks on a blue background.
Wednesday 31 December 2025

Hello 2026

Happy New Year
All articles
Weather & Radar
IE
Clima & Radar Brasil
Hava durumu & Radar Türkiye
Időjárás és Radar Magyarország
Καιρός & Ραντάρ Ελλάδα
Météo & Radar Belgique (Français)
Météo & Radar France
Meteo & Radar Italia
Meteo & Radar România
Météo & Radar Suisse (Français)
Meteo & Radars Latvija
OrasOnline Lietuva
Počasí & Radar Czechia
Počasie & Radar Slovensko
Pogoda & Radar Polska
Погода & Радар Україна (українська)
Tempo & Radar Portugal
Tiempo & Radar Argentina
Tiempo & Radar España
Vejr & Radar Danmark
Vreme & Radar Slovenija
Vreme & Radar Srbija
Vrijeme & Radar Bosna
Vrijeme & Radar Crna Gora
Vrijeme & Radar Hrvatska
Време & Радар България
Времето & Радар Macedonia
Weather & Radar India (English)
Weather & Radar United Kingdom
Weather & Radar USA (English)
Weather & Radar USA (Español)
Weer & Radar België (Nederlands)
Weer & Radar Nederland

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwitteryouTubelinkList