Lille weather in August

In August, Lille sees average daytime highs of 22°C and overnight lows near 14°C, with 70 mm of rain across 11 wet days and about 14.3 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 18% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 15 h 12 min at the start of August to 13 h 24 min by month's end. Set against the rest of the year, August is Lille's 1st-clearest and 12th-windiest month. For the whole year in context, see Lille's year-round climate.

Daytime high
22°
1st warmest
Overnight low
14°
12th coldest
Rainfall
70 mm
11 wet days
Daylight
14 h 18 min
5:42 AM – 8:02 PM
Cloud cover
64%
1st clearest
Wind
12 km/h
12th windiest
Solar energy
4.48 kWh/m²
Travel score
6.5
out of 10

Lille is city and commune in Nord, Hauts-de-France, Northern France.

Air quality
Moderate
PM2.5 11.9 µg/m³ · 2019
Density
6,853/km²
people per km²
Founded
~640 CE

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 21°C by the end.

A typical August day in Lille reaches about 22°C in the afternoon and slips back to 14°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 28°C. Set against its neighbours, August runs on par with July and about 3°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12315
22315
32315
42315
52315
62314
72314
82314
92314
102314
112314
122314
132314
142314
152314
162314
172214
182214
192214
202214
212214
222214
232214
242214
252214
262113
272113
282113
292113
302113
312113

How August really feels in Lille

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Lille weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6011.80.88.30.7
Feb / 5010.61.19.71.0
Mar11° / 5110.70.711.52.5
Apr14° / 4910.8013.54.0
May18° / 6211.9015.25.3
Jun20° / 12°6010.5016.26.1
Jul22° / 14°6111015.86.5
Aug22° / 14°7011014.36.5
Sep19° / 12°539.9012.46.0
Oct15° / 6111.2010.44.3
Nov10° / 6112.20.38.72.2
Dec / 7012.51.17.80.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 22% of August, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24555
34555
44456
54456
64357
74357
84258
94159
104159
114258
124060
134060
144060
154060
163961
173961
183862
193862
203862
213862
223763
233763
243862
253763
263664
273664
283763
293664
303565
313565

Chance of precipitation in August

Any precipitation

Lille gets around 70 mm of rain over 11 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
334
434
534
635
735
835
935
1036
1136
1237
1337
1437
1538
1638
1738
1838
1938
2038
2137
2237
2336
2436
2535
2635
2734
2833
2933
3032
3132

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the comfortable band about 44% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13247192
23147192
33247192
43248192
53248192
63248182
73248182
83248182
93248182
103248182
113347182
123347172
133347172
143447172
153446172
163546172
173546172
183645172
193645162
203744162
213844162
224043152
234142152
244341142
254540142
264639132
274838132
284937121
295136121
305235121
315335111

Wind in August

Winds average 12 km/h in August, the calmest month.

Across August, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 12 min at the start of August to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over August. Sunrise moves from 5:19 AM to 6:05 AM, and sunset from 8:28 PM to 7:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.25:198:28
215.15:218:27
315.15:228:25
415.05:248:24
514.95:258:22
614.95:278:20
714.85:288:19
814.85:308:17
914.75:318:15
1014.75:338:13
1114.65:348:11
1214.65:368:10
1314.55:378:08
1414.55:398:06
1514.45:408:04
1614.35:428:02
1714.35:438:00
1814.25:457:58
1914.25:477:56
2014.15:487:54
2114.05:507:52
2214.05:517:50
2313.95:537:48
2413.95:547:45
2513.85:567:43
2613.75:587:41
2713.75:597:39
2813.66:017:37
2913.56:027:35
3013.56:047:32
3113.46:057:30

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.48 kWh/m².

For context, solar energy here swings from a low near 0.66 kWh/m² to a high of 5.4 kWh/m² in June across the year — August's 4.48 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
64.9Bright
74.9Bright
84.8Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.3Bright
224.2Bright
234.2Bright
244.1Bright
254.0Bright
264.0Bright
274.0Moderate
283.9Moderate
293.9Moderate
303.8Moderate
313.8Moderate
Planning a trip in August

Is August a good time to visit Lille?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.5
Sightseeing
1st-best month of the year
4.7
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Lille for sightseeing.

What to pack for Lille in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Lille sees daytime highs around 22°C and nights near 14°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

Sea temperature near Lille in August

The nearest coast averages about 19°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 62 km away) is warmest in August at about 19°C and coldest in February near 7°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan8Bracing
Feb7Bracing
Mar7Bracing
Apr9Bracing
May12Bracing
Jun15Bracing
Jul17Cool
Aug19Cool
Sep18Cool
Oct15Cool
Nov12Bracing
Dec10Bracing

UV index in Lille in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lille peaks around June 23 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Lille?

Lille sits at 50.6°N, 3.1°E, 20 m above sea level, in France. The nearest listed city is La Madeleine, 2.0 km away.

Topography around Lille

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Lille.

Within 3 km, the terrain around Lille has only modest variations in elevation — a maximum elevation change of 35 m around an average of 28 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 76 m; within 80 km, significant variations in elevation — a maximum elevation change of 335 m.

The land around Lille is covered by artificial surfaces (69%) and trees (25%) within 3 km, cropland (41%), artificial surfaces (25%) and trees (21%) within 16 km, and cropland (53%) within 80 km.

3 km
35 m
16 km
76 m
80 km
335 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: La Madeleine 2.0 km · Lambersart 2.0 km · Loos 4.0 km · Marcq-en-Barœul 4.0 km · Mons-en-Barœul 4.0 km · Ronchin 5.0 km · Lomme 5.0 km · Haubourdin 5.0 km

France travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 77% of US
price level, 2025
GDP per capita
$48,986
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 539
Religion
Roman Catholic 47%none 33%Muslim 4%Protestant 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Lille (50.6339°, 3.0551°, elevation 20 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).