Weather in Lille in March

Shoulder season. March sits in between. You will get good days and you will lose some. Highs sit at 11.2 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

March ranks 8 of 12 in Lille: past the worst of the year but short of June, which is the month to book if the dates are open.

Rain on 11 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Layers, and a genuinely waterproof outer — at 11.2 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: 9 nights fall below freezing. Across the twenty years measured, the hottest March day reached 21.3 °C and the coldest night fell to -9 °C.

March is moderately variable: 16 mm in the driest year against 123 mm in the wettest, around an average of 53 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.

Wind is light at 12.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 84%, which at 11.2 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How March sits in the year

The month is on the way up: 3.7 °C warmer than February, and April adds another 4.1 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in March

11.8 hours of daylight, gaining 1.9 hours across the month. That is between Lille's extremes of 16.4 and 8 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 22.6 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

March in Lille versus nearby

If Lille is one option among several, the nearby comparison is worth making. Breda is close enough to be a coin toss — within a degree on temperature, 1 day more rain. Rotterdam is the weaker option in March — 2.5 °C cooler, 1 day more rain.

So: March is a compromise. June is 28 points better and is what Lille is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Lille

See all twelve months in Lille, or where else to go in March.