Weather in Naples in March

How March compares

March is the 9th warmest month of the year in Naples and ranks 99th of 134 destinations we compare for March - see where else is hot in March. Within Italy it is 4th of 16 (Italy in March). Against London's average high of 10.5°C in March, Naples is 4.3°C warmer by day and 4.1°C warmer at night.

Daytime and night-time in March

The typical March day in Naples peaks at 14.8°C, but that is an average: the warmest 10% of days reach 18.1°C or more. Days over 25°C are rare. Nights average 7.4°C; one night in ten drops to 3.8°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest March day here reached 23.4°C (1991-03-24) and the coldest night -0.9°C (1996-03-06).

Rain in March

Wet (more than 8 rainy days): about 11 days with 1 mm or more, 103 mm in total. Year to year it varies a lot - the wettest March was 2008 with 230 mm, the driest 1994 with 0 mm. Humidity averages 76%.

Sea temperature in March

The sea averages 14.1°C - too cold for most (under 18°c). Depending on the year it ranges from 13.6°C to 14.8°C. For the warmest sea here, come in August (26.4°C).

Sunshine and daylight

Around 5.3 hours of sunshine a day (estimated from cloud cover), 11.7 hours of daylight: the sun rises about 06:14 and sets about 18:09 local time in mid-March. Average cloud cover is 54%.

Is March a good time to visit Naples?

March is not the strongest month here: cool days and frequent rain. The best months for Naples on our scoring are July, August, June; months averaging 25°C or more: Jun, Jul, Aug, Sep.

Mild afternoons, but keep your jacket

March is cool rather than warm, so pack for changing conditions instead of treating Naples as an early summer destination. The warmer days can reach 18°C or more, making a lighter layer useful in the afternoon, but that is not the everyday expectation. At the colder end, nights can fall to around 4°C or below. A jumper and a jacket you can comfortably wear together are sensible for evenings, especially if you plan to spend time outside after dinner. Midday is a useful window for outdoor plans, rather than a period when you need to avoid strong heat. Leave room in your bag for layers you remove.

Keep outdoor plans flexible

Rain is a meaningful part of the March trade-off, not something to dismiss as an occasional inconvenience. Bring a waterproof jacket and shoes that cope with wet pavements, and keep indoor alternatives in mind rather than committing every day to being outside. There are about 5.3 hours of sunshine within 11.7 hours of daylight, so there is scope for bright spells, but daylight does not mean uninterrupted sun. Use the forecast to decide when to take longer walks or sit outdoors. This month works best if you can rearrange your plans around the weather; it is less suitable if your enjoyment depends on reliably dry days.