Measurements:
°C
°F
Key West
74°F
SW 23 mph
Feels like: 74°F
Precip: 0%
World Resorts USA Key West Weather August Weather in Key West

Key West Weather: August

Average Day Temperature: 91.8°F
Average Night Temperature: 86.6°F
Sea Water Temperature: 91.1°F
Number of Sunny Days: 11 days
Sunshine Hours: 12.6 - 13.3 hours
Number of Rainy Days: 7 days
Precipitation Totals: 4.3 in

Air Temperature in August, °F

Select Year: 2023 2022 2021

The highest day temperature in August 2023 was 94°F. The lowest night temperature was 84°F. The average values for day and night temperatures during August were 91.1°F и 89.1°F respectivly.

Key West Water Sea Temperature in August, °F

Select Year: 2023 2022 2021

The average sea surface temperature in August 2023 for Key West was 93.1°F. The maximum and minimum values were 90.0°F and 96.0°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in August, in

Precipitation total in August for Key West is 4.3 in. It makes august one of the most rainy months of the year.

Wind Speed in August, mph

The average wind speed in August is 10.6 mph. It makes August 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 August is 7.6 hours.

Best Time to Visit Key West
The most sunny months:
March 16 days
April 16 days
May 16 days
The most warm months:
August 91.8 °F
July 91.3 °F
September 89.8 °F
Warmest sea temperature:
August 91.1 °F
July 90.5 °F
September 89.9 °F
The most cold months:
January 74.9 °F
February 76.7 °F
December 78.6 °F
The most rainy months:
August 7 days
July 7 days
September 7 days
The most windy months:
November 14 mph
December 14 mph
January 14 mph

Key West on the Weather Map

USA Resorts:
NAME
Boston +40
Chicago +38
Hawaii +74
Honolulu +74
Houston +66
Las Vegas +54
Los Angeles +52
Miami +74
New York +42
Orlando +64
San Diego +56
San Francisco +50
Sarasota +66
Tampa +64
Washington +42
24 Hours Weather Forecast
Key West
Local time: 09:27
29 mar, friday
1200 74°F
SW
19 mph
1500 76°F
SW
14 mph
1800 78°F
W
16 mph
2100 78°F
W
18 mph
30 mar, saturday
0000 78°F
W
17 mph
0300 76°F
W
17 mph
0600 76°F
W
17 mph
0900 76°F
W
20 mph