Which is the hottest month in Key West?

The hottest time of year in Key West is normally August. Expect maximum daytime temperatures to reach 32°C with very high heat and humidity.

Which month has the most rain in Key West?

In terms of rainfall, September is usually the wettest month in Key West with 166mm on average. There are normally 15 days in September with some rain.

When is it sunniest in Key West?

The sunniest time of year in Key West is normally April with bright sunshine on average for 83% of daylight hours; that's 11 hours of sunshine per day.

When is the sea warmest in Key West?

The sea is usually at its warmest in Key West in August when the water temperature reaches 30°C.

Best time to visit Key West

Q: When is the best time to visit Key West?

The best time to visit Key West is March and April based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

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Key West by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Destination

When is the best time to visit Key West?

The best time to visit Key West is March and April based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

4
Jan
4
Feb
5
Mar
5
Apr
4.5
May
4
Jun
3.5
Jul
3.5
Aug
4
Sep
4
Oct
4
Nov
4
Dec

Change criteria

Max Day Temperature (°C)

24
Jan
24
Feb
26
Mar
28
Apr
29
May
31
Jun
32
Jul
32
Aug
31
Sep
29
Oct
27
Nov
24
Dec

Hours of Sunshine (daily)

8
Jan
9
Feb
10
Mar
11
Apr
11
May
10
Jun
10
Jul
10
Aug
9
Sep
8
Oct
8
Nov
7
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Florida (Key West) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)