Miami, FL weather in May
Expect warm, oppressively humid weather with frequent rain in Miami in May, with highs near 87°F and lows near 73°F. Rain falls on about 11 days.
- Normal high
- 87°F
- Normal low
- 73°F
- Wet days
- 11
- 6.3 in total
- Muggy days
- 25
- dew point 65°F+
How May changes from start to finish
| May 1 | May 31 | |
|---|---|---|
| Normal high | 85°F | 88°F |
| Normal low | 72°F | 75°F |
| Chance of a wet day | 29% | 46% |
| Sunrise / sunset | 6:43 am / 7:51 pm | 6:29 am / 8:07 pm |
| Daylight | 13.1 h | 13.6 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 May day
- 6 am75°Fdew point 69°F
- 9 am81°Fdew point 69°F
- Noon84°Fdew point 68°F
- 3 pm84°Fdew point 68°F
- 6 pm81°Fdew point 68°F
- 9 pm78°Fdew point 69°F
NOAA hourly normals (local standard time) from Miami Intl Airport (8 mi away); average wind 9 mph; clear or few clouds in 47% of daytime hours, mostly cloudy or overcast in 30%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph19 of 31
- Hot dayshigh 90°F or more6 of 31
- Muggy daysdaily mean dew point 65°F or more25 of 31
- Wet daysat least 0.01 in of rain or melted snow11 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per May, counted from daily records for each year 1991-2020.
Rain in May
Normal precipitation is 6.3 in; a dry May brings about 2.8 in and a wet one about 8.3 in (25th and 75th percentiles). About 4 days bring half an inch or more, and about 2 an inch or more.
How May varies from year to year
- Warmest May, 1991-20202017: average high 90°F
- Coolest May2018: average high 84°F
- Wettest May2020: 18.9 in
- Driest May1992: 0.6 in
- Highest reading98°F (May 28, 2017)
- Lowest reading56°F (May 8, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
May compared with April and June
| April | May | June | |
|---|---|---|---|
| Normal high | 84°F | 87°F | 89°F |
| Normal low | 70°F | 73°F | 76°F |
| Wet days | 7 | 11 | 18 |
| Comfortable days | 4 | 0 | 0 |
| Daylight | 12.8 h | 13.4 h | 13.7 h |
Highs change by +3°F from April and +2°F into June.
Nearby alternatives in May
- Drier: Key West, FL130 mi · high 86°F · 8 wet days
How Miami ranks in May
- Normal high38th warmest of 378 cities; 11th of 23 in Florida
- Wet days215th driest of 378
- Comfortable days331st most of 339
What to pack for Miami in May
- Light, breathable clothing – highs near 87°F and about 25 muggy days
- A rain jacket or umbrella – rain on about 11 days
- A swimsuit – about 19 beach days
Heating and cooling
May has 0 heating degree days and 467 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.
Questions
How hot is Miami in May?
The normal high is 87°F and the normal low is 73°F. From 1991 to 2020 the hottest May reading was 98°F (May 28, 2017).
Does it rain a lot in Miami in May?
About 11 days in May have at least 0.01 in of precipitation, and the normal total is 6.3 in. The wettest May in 1991-2020 was in 2020 (18.9 in); the driest was in 1992 (0.6 in).
Is May a good time to visit Miami?
May ranks 7th of 12 months on our comfort score for Miami (47 out of 100). It has almost no comfortable days and about 6 days at 90°F or hotter. The best months are January, February and March.
Where the numbers come from
- Temperature, rain, frost dates and humidity and wind by hour: Miami Intl Airport (USW00012839), 7.7 mi W of the city center, 29 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: Hialeah (USC00083909), 6.5 mi WNW of the city center, 12 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Miami Kendall Tamiami Exec Airport (USW00012888), 17 mi WSW of the city center, 10 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Miami International Airport (722020-12839), 7.7 mi W of the city center, 5 ft . Hourly observations, 1991-2020.