Weather in Lille in August 2025
- August is usually the hottest month of the year in Lille;
Average weather
Average temperature in Lille in August
The expected average maximum temperature in August is +23°C with a maximum of +29°C and a minimum of +11°C.
The average maximum temperature goes down 11% by the end of the month, compared with the beginning of the month, from +21°C to +19°C.
Is Lille warm or cold in August?
Lille is typically mild in August.
Maximum temperatures go up compared to the previous month from +22°C to +22°C. The minimum temperature also goes up from +14°C to +14°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
August is the hottest month in Lille, here is the comparison with other months:
Climate in Lille in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +22°C | +22°C | +19°C | ||||
| Min. temperature | ||||||
| +7°C | +6°C | +2°C | ||||
| Max. temperature | ||||||
| +42°C | +37°C | +34°C | ||||
| Rainfall | ||||||
| 73 mm | 74 mm | 65 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 77% | 77% | 81% | ||||
| Air pressure | ||||||
| 1015 HPa | 1015 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 6 | 6 | 5 | ||||
| Cloudy days | ||||||
| 7 | 7 | 9 | ||||
| Rainy days | ||||||
| 18 | 18 | 16 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. The temperature levels stay the same in the area of +22°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 73 mm to 74 mm. Humidity levels don’t change as the month goes on, averaging around 77%. The average wind speed doesn’t change much during August, staying around 3 m/s. The amount of sunny days stay about the same, averaging 6 sunny days during the month.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Lille is gradually decreasing during August, going from 6 m/s to 3 m/s over the course of the month.
Rain
How was the weather last August in Lille?
Climate Change over Years
The climate in Lille in August has not changed much over the last 43 years.
The average temperature was the lowest in 1979 (+12°C) and the highest in 2022 (+17°C). The driest year was 1996 with only 423 mm of rainfall, and the wettest year was 2021 with 3143 mm.
FAQ
Is August a good time to visit Lille?
Can you sunbathe in Lille in August?
Is Lille rainy in August?
Is it sunny in Lille in August?
Other cities in France
Monthly weather in Lille
Source of the data
For this page, we’ve looked at the typical weather in Lille, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.