January in Lille — off-season conditions
Hardest · 4.2/10At 4°C (39°F) this is proper winter weather in January: layer up and split the day between outdoor highlights and indoor stops.
Budget for roughly 65 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 8.2 hours of daylight to work around it.
That is 4.2/10 on the same scale — 11th of 12 months, versus 9/10 for the best month here.
Budget for low-season pricing, and crowds are light for this destination.
Pack insulated layers, a windproof shell, gloves and boots with grip, a packable rain layer.
If your dates are flexible, August is materially better in Lille — 4.8 points higher on the same scale.
February in Lille — workable with trade-offs
Trade-offs · 5.1/10Expect 7°C (44°F) in February. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 58 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 9.7 hours of daylight to work around it.
That is 5.1/10 on the same scale — 9th of 12 months, versus 9/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
If your dates are flexible, August is materially better in Lille — 3.9 points higher on the same scale.
March in Lille: mixed conditions, plan around the weather
Trade-offs · 5.7/10March averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 75 mm, so plan one flexible day in three; you still get about 5 days with 6+ hours of sunshine and 11.5 hours of daylight.
It scores 5.7/10 here, 8th of 12 months, against 9/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
Flexible dates? August scores 3.3 points higher here — enough to change the trip.
April in Lille: strong conditions, 5th of 12
Good · 7.5/10Expect 10°C (49°F) in April. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 54 mm of rain this month — a flexible day or two helps — with about 14 days with 6+ hours of sunshine and 13.6 hours of daylight to work around it.
That is 7.5/10 on the same scale — 5th of 12 months, versus 9/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
If your dates are flexible, August is materially better in Lille — 1.5 points higher on the same scale.
May in Lille — one of the year's strongest windows (4th)
Best window · 8.6/10May averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 62 mm, so plan one flexible day in three; you still get about 23 days with 6+ hours of sunshine and 15.3 hours of daylight.
A 8.6/10 puts this among the year's best months in Lille (4th of 12); only August scores higher, at 9/10.
Figure on mid-season pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
June ranks 2nd of 12 for Lille — one of the best windows
Best window · 8.9/10Temperatures hover around 17°C (63°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 59 mm of rain this month — a flexible day or two helps — with about 28 days with 6+ hours of sunshine and 16.2 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Lille at 8.9/10 (2nd of 12), just behind August at 9/10.
Budget for peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
July in Lille — one of the year's strongest windows (3rd)
Best window · 8.9/10Temperatures hover around 19°C (66°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 61 mm of rain this month — a flexible day or two helps — with about 25 days with 6+ hours of sunshine and 15.8 hours of daylight to work around it.
On our climate-comfort scale this is one of the strongest months of the year for Lille at 8.9/10 (3rd of 12), just behind August at 9/10.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
August in Lille — the year's strongest window
Best window · 9/10August averages 19°C (67°F) — pleasant for mornings and evenings on foot in the city, with a midday break when the sun is strongest.
Rainfall runs 52 mm, so plan one flexible day in three; you still get about 21 days with 6+ hours of sunshine and 14.3 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Lille at 9/10 — the reference point every other month on this page is measured against.
Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, a hat and real sun protection, a packable rain layer.
September in Lille — reliably good (6th best month)
Good · 7.4/10September averages 17°C (62°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 78 mm, so plan one flexible day in three; you still get about 9 days with 6+ hours of sunshine and 12.4 hours of daylight.
It scores 7.4/10 here, 6th of 12 months, against 9/10 in the destination's best month.
Plan for mid-season pricing, with crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Flexible dates? August scores 1.6 points higher here — enough to change the trip.
October in Lille — middling scores, decent value
Trade-offs · 6.3/10Temperatures hover around 13°C (56°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 67 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 10.4 hours of daylight to work around it.
That is 6.3/10 on the same scale — 7th of 12 months, versus 9/10 for the best month here.
Expect mid-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
If your dates are flexible, August is materially better in Lille — 2.7 points higher on the same scale.
November in Lille — the hardest end of the year
Hardest · 4.6/10Expect 8°C (46°F) in November. A good month for city streets, viewpoints and long meals; leave swimming for another season.
Budget for roughly 85 mm of rain this month — a flexible day or two helps — with almost no days with 6+ hours of sunshine and 8.7 hours of daylight to work around it.
That is 4.6/10 on the same scale — 10th of 12 months, versus 9/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
If your dates are flexible, August is materially better in Lille — 4.4 points higher on the same scale.
December in Lille: expect compromises
Hardest · 4.2/10December averages 5°C (41°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
Rainfall runs 70 mm, so plan one flexible day in three; you still get almost no days with 6+ hours of sunshine and 7.8 hours of daylight.
It scores 4.2/10 here, 12th of 12 months, against 9/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a packable rain layer.
Flexible dates? August scores 4.8 points higher here — enough to change the trip.
