Key West, FL weather in April
April in Key West: warm, oppressively humid and mostly dry. Highs 83°F, lows 73°F, about 5 wet days.
- Normal high
- 83°F
- Normal low
- 73°F
- Wet days
- 5
- 2.1 in total
- Muggy days
- 21
- dew point 65°F+
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 81°F | 84°F |
| Normal low | 71°F | 75°F |
| Chance of a wet day | 15% | 17% |
| Sunrise / sunset | 7:18 am / 7:43 pm | 6:52 am / 7:56 pm |
| Daylight | 12.4 h | 13.1 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical April day
- 6 am74°Fdew point 67°F
- 9 am78°Fdew point 68°F
- Noon80°Fdew point 68°F
- 3 pm81°Fdew point 68°F
- 6 pm78°Fdew point 67°F
- 9 pm76°Fdew point 67°F
NOAA hourly normals (local standard time) from Key West Intl Airport (2 mi away); average wind 11 mph; clear or few clouds in 73% of daytime hours, mostly cloudy or overcast in 16%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F3 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph18 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more21 of 30
- Wet daysat least 0.01 in of rain or melted snow5 of 30
- Notable rainat least 0.10 in3 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain in April
Normal precipitation is 2.1 in; a dry April brings about 0.8 in and a wet one about 2.7 in (25th and 75th percentiles). About 1 day brings half an inch or more, and about 1 an inch or more.
How April varies from year to year
- Warmest April, 1991-20202020: average high 85°F
- Coolest April2004: average high 80°F
- Wettest April2015: 6.6 in
- Driest April2006: 0.01 in
- Highest reading90°F (April 26, 2015)
- Lowest reading55°F (April 9, 2009)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
April compared with March and May
| March | April | May | |
|---|---|---|---|
| Normal high | 80°F | 83°F | 86°F |
| Normal low | 69°F | 73°F | 76°F |
| Wet days | 5 | 5 | 8 |
| Comfortable days | 7 | 3 | 0 |
| Daylight | 12.0 h | 12.7 h | 13.3 h |
Highs change by +3°F from March and +3°F into May.
How Key West ranks in April
- Normal high29th warmest of 378 cities; 11th of 23 in Florida
- Wet days63rd driest of 378
- Comfortable days313th most of 340
What to pack for Key West in April
- A swimsuit – about 18 beach days
Heating and cooling
April has 0 heating degree days and 386 cooling degree days (base 65°F), 7% of the year's total heating and cooling demand.
Questions
How hot is Key West in April?
The normal high is 83°F and the normal low is 73°F. From 1991 to 2020 the hottest April reading was 90°F (most recently on April 26, 2015).
Does it rain a lot in Key West in April?
About 5 days in April have at least 0.01 in of precipitation, and the normal total is 2.1 in. The wettest April in 1991-2020 was in 2015 (6.6 in); the driest was in 2006 (0.01 in).
Is April a good time to visit Key West?
April ranks 4th of 12 months on our comfort score for Key West (56 out of 100). It has about 3 comfortable days. The best months are January, February and March.
Where the numbers come from
- Temperature, rain, frost dates, humidity and wind by hour and cloud cover: Key West Intl Airport (USW00012836), 1.9 mi E of the city center, 4 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Key West International Airport (722010-12836), 1.7 mi E of the city center, 1 ft . Hourly observations, 1991-2020.
- Not available for this location: snowfall and snow depth (no station close enough or similar enough in elevation).