Measurements:
°C
°F
Key West
90°F
W 11 mph
Feels like: 100°F
Precip: 27%
World Resorts USA Key West Weather July Weather in Key West

Key West Weather: July

Average Day Temperature: 91.0°F
Average Night Temperature: 86.7°F
Sea Water Temperature: 90.8°F
Number of Sunny Days: 13 days
Sunshine Hours: 13.3 - 13.6 hours
Number of Rainy Days: 6 days
Precipitation Totals: 4.0 in

Air Temperature in July, °F

Select Year: 2026 2025 2024

The highest day temperature in July 2026 was 95°F. The lowest night temperature was 85°F. The average values for day and night temperatures during July were 92.0°F и 88.0°F respectivly.

Key West Water Sea Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Key West was 92.8°F. The maximum and minimum values were 91.6°F and 94.4°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in July are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in July, in

Precipitation total in July for Key West is 4.0 in. It makes july one of the most rainy months of the year.

Wind Speed in July, mph

The average wind speed in July is 10.0 mph. It makes July one of the most windless months of the year for Key West.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Key West in July is 8.6 hours.

Best Time to Visit Key West
The most sunny months:
May 17 days
March 16 days
April 16 days
The most warm months:
August 91.6 °F
July 91.0 °F
September 89.7 °F
Warmest sea temperature:
August 91.3 °F
July 90.8 °F
September 90.1 °F
The most cold months:
January 74.4 °F
February 76.3 °F
December 78.2 °F
The most rainy months:
June 7 days
August 7 days
September 6 days
The most windy months:
November 14 mph
December 14 mph
January 14 mph

Key West on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +82
Hawaii +82
Houston +106
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Key West
Local time: 16:15
05 aug, wednesday
1800 84°F
W
12 mph
2100 86°F
W
14 mph
06 aug, thursday
0000 82°F
W
17 mph
0300 90°F
W
19 mph
0600 90°F
W
17 mph
0900 90°F
W
17 mph
1200 90°F
W
17 mph
1500 90°F
W
16 mph