VoyageFind your Lille season
Mild means an average daily high of 18–25°C (64–77°F), ranked by closeness to 21°C, then fewer wet days. This compares weather only, without assuming prices or crowd levels.
Lille
June
21° / 11°C
11.2 wet days · 61 mm
September
20° / 10°C
10.7 wet days · 52 mm
August
23° / 13°C
12.9 wet days · 73 mm
July
23° / 13°C
13.1 wet days · 68 mm
May
18° / 8°C
11.2 wet days · 59 mm
A consistent comparison.
All cities here use NASA POWER daily data for 2001–2020. Nearby cities may share a regional grid cell; small numerical differences are not a reason to choose one over another. Lisbon’s dedicated planner uses a separate IPMA station series, so its numbers can differ.
Data sources & methods