Charleville-Mézières weather in September

In September, Charleville-Mézières sees average daytime highs of 18°C and overnight lows near 10°C, with 68 mm of rain across 10.5 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 17°C by the end. The sky is clear or mostly clear about 19% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Charleville-Mézières's 3rd-clearest and 9th-windiest month. For the whole year in context, see Charleville-Mézières's year-round climate.

Daytime high
18°
4th warmest
Overnight low
10°
9th coldest
Rainfall
68 mm
10.5 wet days
Daylight
12 h 24 min
6:24 AM – 6:46 PM
Cloud cover
65%
3rd clearest
Wind
12 km/h
9th windiest
Solar energy
3.25 kWh/m²
Travel score
5.7
out of 10
Air quality
Good
PM10 18.4 µg/m³ · 2019

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 20°C in the first days to 17°C by the end.

A typical September day in Charleville-Mézières reaches about 18°C in the afternoon and slips back to 10°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 24°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12012
22012
32011
42011
52011
62011
72011
81911
91911
101911
111911
121911
131910
141910
151910
161810
171810
181810
191810
201810
211810
221810
231710
24179
25179
26179
27179
28179
29169
30169

How September really feels in Charleville-Mézières

Once humidity and wind are folded in, September 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

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

Charleville-Mézières weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 9013.12.48.40.0
Feb / 76123.59.80.3
Mar10° / 7612.71.411.52.0
Apr14° / 6512.20.213.53.7
May17° / 7413.1015.15.0
Jun20° / 11°7412.50165.8
Jul23° / 13°7511.9015.76.4
Aug22° / 13°7712.2014.26.4
Sep18° / 10°6810.5012.45.7
Oct14° / 7712.4010.53.6
Nov / 8312.90.88.81.3
Dec / 10714.3380.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23763
33862
43862
53862
63862
73763
83763
93664
103862
113763
123664
133664
143763
153763
163763
173664
183763
193763
203763
213763
223763
233565
243565
253466
263268
273268
283070
292971
302971

Chance of precipitation in September

Any precipitation

Charleville-Mézières gets around 68 mm of rain over 10.5 wet days in September. 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 40% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
335
435
535
635
735
835
935
1036
1136
1236
1336
1436
1536
1636
1736
1836
1936
2036
2136
2236
2336
2437
2537
2638
2738
2839
2940
3040

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 79% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
167258
267258
368257
469247
570246
670246
771245
872235
972235
1074224
1175214
1276204
1377194
1478184
1580173
1681163
1782153
1883152
1984142
2084142
2184142
2286131
2386131
2486131
2586131
2686131
2785141
2885141
2987130
3087130

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 18 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over September. Sunrise moves from 6:02 AM to 6:46 AM, and sunset from 7:20 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.36:027:20
213.26:037:18
313.26:057:16
413.16:067:13
513.16:087:11
613.06:097:09
712.96:117:07
812.96:127:04
912.86:147:02
1012.76:157:00
1112.76:176:58
1212.66:186:55
1312.66:206:53
1412.56:216:51
1512.46:236:49
1612.46:246:46
1712.36:266:44
1812.26:286:42
1912.26:296:40
2012.16:316:37
2112.06:326:35
2212.06:346:33
2311.96:356:30
2411.96:376:28
2511.86:386:26
2611.76:406:24
2711.76:416:21
2811.66:436:19
2911.56:456:17
3011.56:466:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.25 kWh/m².

For context, solar energy here swings from a low near 0.67 kWh/m² to a high of 5.45 kWh/m² in June across the year — September's 3.25 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.7Moderate
53.7Moderate
63.6Moderate
73.6Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.3Moderate
153.3Moderate
163.2Moderate
173.2Moderate
183.2Moderate
193.1Moderate
203.1Moderate
213.0Moderate
223.0Moderate
232.9Moderate
242.9Moderate
252.8Moderate
262.8Moderate
272.7Moderate
282.6Moderate
292.6Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Charleville-Mézières?

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

5.7
Sightseeing
4th-best month of the year
2.1
Beach & pool
4th-best month of the year

September is a reasonable time to visit Charleville-Mézières for sightseeing.

What to pack for Charleville-Mézières in September

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

In September, Charleville-Mézières sees daytime highs around 18°C and nights near 10°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Charleville-Mézières in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Charleville-Mézières peaks around July 15 at about 7 (very 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 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighModerateLowJul 15UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Charleville-Mézières in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Charleville-Mézières is worst in April — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (November, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1315 µg/m³Nov 239 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun13Moderate
Jul11Good
Aug11Good
Sep11Good
Oct10Good
Nov9Good
Dec9Good
Location & terrain

Where is Charleville-Mézières?

Charleville-Mézières sits at 49.8°N, 4.7°E, 151 m above sea level, in France. The nearest listed city is Sedan, 17 km away.

Topography around Charleville-Mézières

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

Within 3 km, the terrain around Charleville-Mézières has only modest variations in elevation — a maximum elevation change of 146 m around an average of 171 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 332 m; within 80 km, significant variations in elevation — a maximum elevation change of 555 m.

The land around Charleville-Mézières is covered by trees (43%), artificial surfaces (30%) and grassland (20%) within 3 km, trees (57%) and grassland (26%) within 16 km, and trees (40%), cropland (34%) and grassland (24%) within 80 km.

3 km
146 m
16 km
332 m
80 km
555 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Sedan 17 km · Dinant 56 km · Walcourt 58 km · Marche-en-Famenne 68 km · Châtelet 72 km · Marcinelle 72 km · Montignies-sur-Sambre 73 km · Châtelineau 73 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 Charleville-Mézières (49.7685°, 4.7249°, elevation 151 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).