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Key West weather in August 2019
- 3232°C max day temperature
- 1515 days with some rainfall
- 2626°C min night temperature
- 1313 hours of daylight per day
- VHVery High heat & humidity
- 125125 mm of monthly rainfall
- 1111 (Extreme) UV index
- 3030°C sea temperature
The August weather guide for Key West, Florida shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
Guide to Key West weather in August
The average maximum daytime temperature in Key West in August is a hot 32°C (90°F) with very high heat & humidity. The average night-time temperature is usually a warm 26°C (79°F). There are usually 10 hours of bright sunshine each day, which represents 74% of the 13 hours of daylight.
Expect 125mm (4.9 inches) of rainfall across the whole of August with 15 days with some rain falling. Maximum UV levels will be extreme (11 UV index) at midday when the skies are clear.
The average sea temperature in and around Key West in August is 30°C (86°F).
Key West sunrise & sunset times for August 2019
Browse the sunrise & sunset times for Key West in August 2019. Select a month to view Key West sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Thursday, 1st August 2019||06:55||20:11|
|Friday, 16th August 2019||07:02||20:00|
|Saturday, 31st August 2019||07:08||19:47|
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Discover more about Florida
Where's hot in Florida in August?
Below are average maximum temperatures at popular destinations in Florida in August. Select a destination to see more weather parameters.
- Daytona Beach
- Fort Lauderdale
- Key West
- Panama City
- St Pete Beach
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