Lille Climate by Month
Lille has a t temperate oceanic climate and is under influence of the North Sea, the Atlantic Ocean and the Warm Gulf Stream. Temperatures are moderate almost all year round. For example it doesn't really get cold in winter, even the average night temperature in Lille is just above freezing. It does rain regularly in Lille.
The best time of year to visit Lille is from May through September. You have no guarantee during this period, but the chances of dealing with good weather are greatest during these months. Summer (June to August) offers the highest temperatures. Normally these are also the sunniest months, although some years it can happen that May is extremely sunny and ends up being the sunniest month of the year.
The graphs below provide an overview of the climate in Lille (Nord-Pas-de-Calais), France. They present long-term patterns and averages of weather conditions over a 30-year period.