Weather in Miami in March

How March compares

March is the 9th warmest month of the year in Miami and ranks 38th of 134 destinations we compare for March - see where else is hot in March. Within United States it is 1st of 6 (United States in March). Against London's average high of 10.5°C in March, Miami is 14.6°C warmer by day and 16.4°C warmer at night.

Daytime and night-time in March

The typical March day in Miami peaks at 25.1°C, but that is an average: the warmest 10% of days reach 27.8°C or more. About 59% of days top 25°C and 1 in 167 pass 30°C. Nights average 19.7°C; one night in ten drops to 14.9°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest March day here reached 31.2°C (2020-03-31) and the coldest night 7.7°C (2010-03-05).

Rain in March

Some rain (4-8 rainy days): about 7 days with 1 mm or more, 49 mm in total. Year to year it varies a lot - the wettest March was 2010 with 135 mm, the driest 2006 with 7 mm. Humidity averages 69%.

Sea temperature in March

The sea averages 24.2°C - warm enough to swim (22°c+). Depending on the year it ranges from 23.3°C to 25.2°C. For the warmest sea here, come in August (29.9°C).

Sunshine and daylight

Around 6.6 hours of sunshine a day (estimated from cloud cover), 11.8 hours of daylight: the sun rises about 07:30 and sets about 19:29 local time in mid-March. Average cloud cover is 44%.

Is March a good time to visit Miami?

Yes - it is one of the better months: hot days, manageable rain. The best months for Miami on our scoring are March, February, April; months averaging 25°C or more: Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov.

Warm days, with cooler evenings

Pack mainly for warm weather, but leave space for a light jumper or jacket. Days reach 25°C on 59% of occasions, while 30°C is unusual, so March suits travellers who want warmth rather than fierce heat. Humidity averages 69%, which can make the air feel muggy; lighter clothing and a shaded break around midday are sensible. Evenings are generally mild, but the coldest 10% of nights fall to around 15°C or below, so outdoor plans may call for an extra layer. Compared with London's March daytime high of around 11°C, Miami offers a substantial change without reliably delivering very hot days.

Allow for rain rather than expecting constant sun

March brings about 7 rainy days, so it is sensible to keep outdoor plans flexible rather than assume every day will stay dry. A light waterproof is useful, particularly if you would rather carry on with your plans than head indoors. Sunshine averages about 6.6 hours within 11.8 hours of daylight: there is room for sunny spells, but uninterrupted blue skies are not the expectation. Put the most weather-dependent plans on days with a favourable forecast and leave indoor time movable. March works well if you can accept occasional wet weather in return for warm conditions; it is less suited to anyone whose holiday depends on guaranteed sunshine.