Climate averages 1991–2020
Lille weather
in July.
A warm, moderately wet month: one of the warmest and the joint 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Lille: daytime highs average 22.5°C and nights cool to about 14.1°C. By daytime temperature it is one of the warmest months of the year.
Expect about 61 mm of rain on roughly 11 days, which makes July a moderately wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 00 min on an average July day.
The nearest other city in this atlas is Roubaix (11 km away). In July its highs average 22.4°C, about as warm as Lille, with 65 mm of rain.
Among the 57 cities listed in France, Lille ranks joint 51st of 57 for the warmest July highs and joint 42nd of 57 for the driest July (rainfall, lowest first). The mean July high of those 57 cities is 24.9°C; Lille is 2.3°C cooler than that mean.
From July to August, average highs stay level at 22.5°C, and monthly rainfall rises from 61 mm to 70 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Lille climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.6°C1.7°C | 1.7°C | 60 | 11.8 | 8.59 h |
| February | 7.7°C1.6°C | 1.6°C | 51 | 10.7 | 10.010 h |
| March | 10.8°C3.2°C | 3.2°C | 51 | 10.7 | 11.812 h |
| April | 14.3°C5.3°C | 5.3°C | 48 | 10.8 | 13.814 h |
| May | 17.6°C8.8°C | 8.8°C | 62 | 11.9 | 15.515 h |
| June | 20.4°C11.8°C | 11.8°C | 60 | 10.4 | 16.416 h |
| July, selected | 22.5°C14.1°C | 14.1°C | 61 | 11.0 | 16.016 h |
| August | 22.5°C14.1°C | 14.1°C | 70 | 11.0 | 14.515 h |
| September | 19.3°C11.6°C | 11.6°C | 53 | 9.9 | 12.713 h |
| October | 15.2°C8.7°C | 8.7°C | 60 | 11.2 | 10.811 h |
| November | 10.3°C5.1°C | 5.1°C | 61 | 12.2 | 9.09 h |
| December | 7.0°C2.4°C | 2.4°C | 70 | 12.5 | 8.18 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Roubaix in JulyFrance · 11 kmHigh 22.4°C · Low 14.1°C · 65 mm rain
- Kortrijk in JulyBelgium · 26 kmHigh 22.2°C · Low 14.3°C · 65 mm rain
- Brugge in JulyBelgium · 65 kmHigh 21.0°C · Low 15.0°C · 65 mm rain
- Dunkirk in JulyFrance · 65 kmHigh 21.5°C · Low 14.6°C · 57 mm rain
- Gent in JulyBelgium · 66 kmHigh 22.3°C · Low 14.4°C · 71 mm rain
- Mons in JulyBelgium · 66 kmHigh 22.5°C · Low 14.2°C · 67 mm rain
- Aalst in JulyBelgium · 77 kmHigh 22.6°C · Low 14.5°C · 70 mm rain
- La Louvière in JulyBelgium · 82 kmHigh 22.1°C · Low 13.8°C · 69 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Lille) is explained once on the Lille year overview and on the Sources, method and limits page.