Villefontaine weather in September

In September, Villefontaine sees average daytime highs of 22°C and overnight lows near 12°C, with 82 mm of rain across 8.3 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 20°C by the end. The sky is clear or mostly clear about 35% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 30 min by month's end. Set against the rest of the year, September is Villefontaine's 4th-clearest and 11th-windiest month. For the whole year in context, see Villefontaine's year-round climate.

Daytime high
22°
4th warmest
Overnight low
12°
9th coldest
Rainfall
82 mm
8.3 wet days
Daylight
12 h 18 min
6:24 AM – 6:43 PM
Cloud cover
54%
4th clearest
Wind
9 km/h
11th windiest
Solar energy
3.92 kWh/m²
Travel score
7.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 20°C by the end.

A typical September day in Villefontaine reaches about 22°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 28°C. Set against its neighbours, September runs about 5°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12514
22514
32514
42414
52414
62414
72413
82413
92413
102313
112313
122313
132313
142313
152312
162212
172212
182212
192212
202212
212112
222112
232111
242111
252111
262111
272011
282011
292011
302011

How September really feels in Villefontaine

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.

Villefontaine weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7911.72.88.90.8
Feb / 6510.22.410.11.6
Mar13° / 6610.91.111.63.7
Apr17° / 8111.10.413.35.1
May21° / 11°8811.8014.76.1
Jun25° / 14°749.6015.47.0
Jul27° / 16°627.6015.17.0
Aug27° / 16°607.3013.97.1
Sep22° / 12°828.3012.37.0
Oct17° / 9210.50.110.75.4
Nov11° / 10612.11.29.32.5
Dec / 8512.12.18.61.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26337
36238
46238
56238
66139
76040
85941
95941
105941
115842
125743
135644
145545
155446
165347
175248
185050
194951
204951
214951
224852
234753
244753
254753
264753
274654
284555
294456
304357

Chance of precipitation in September

Any precipitation

Villefontaine gets around 82 mm of rain over 8.3 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 29% and peaks near 36% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
122
223
323
423
524
624
724
825
925
1026
1126
1227
1328
1428
1529
1630
1730
1830
1931
2031
2131
2232
2332
2432
2533
2634
2734
2835
2936
3036

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 67% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15431141
25531131
35730121
45830111
55929111
66029101
76128101
8632890
9632890
10642880
11642880
12642970
13652870
14662860
15662860
16662860
17682750
18682750
19702640
20702640
21712540
22722440
23732430
24742330
25742330
26752230
27762130
28772120
29772120
30782020

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 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 96 minutes over September. Sunrise moves from 6:05 AM to 6:42 AM, and sunset from 7:13 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:057:13
213.16:077:11
313.06:087:09
413.06:097:07
512.96:107:05
612.96:127:03
712.86:137:01
812.86:146:59
912.76:156:57
1012.66:176:55
1112.66:186:53
1212.56:196:51
1312.56:206:49
1412.46:226:47
1512.46:236:45
1612.36:246:43
1712.36:266:41
1812.26:276:39
1912.26:286:37
2012.16:296:35
2112.06:316:33
2212.06:326:31
2311.96:336:29
2411.96:346:27
2511.86:366:25
2611.86:376:23
2711.76:386:21
2811.76:406:19
2911.66:416:17
3011.56:426:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.92 kWh/m².

For context, solar energy here swings from a low near 1.15 kWh/m² to a high of 6.19 kWh/m² in July across the year — September's 3.92 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.5Bright
54.5Bright
64.4Bright
74.4Bright
84.3Bright
94.3Bright
104.2Bright
114.2Bright
124.1Bright
134.0Bright
144.0Bright
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.7Moderate
203.7Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.3Moderate
273.3Moderate
283.2Moderate
293.2Moderate
303.1Moderate
Planning a trip in September

Is September a good time to visit Villefontaine?

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

7.0
Sightseeing
2nd-best month of the year
5.1
Beach & pool
4th-best month of the year

September is one of the better times to visit Villefontaine for general sightseeing.

What to pack for Villefontaine in September

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

In September, Villefontaine sees daytime highs around 22°C and nights near 12°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

UV index in Villefontaine in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Villefontaine peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May6High
Jun7Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Villefontaine 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 Villefontaine is worst in March — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 2217 µg/m³Jul 2412 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb15Moderate
Mar17Moderate
Apr17Moderate
May14Moderate
Jun16Moderate
Jul12Good
Aug12Good
Sep12Moderate
Oct13Moderate
Nov13Moderate
Dec15Moderate
Location & terrain

Where is Villefontaine?

Villefontaine sits at 45.6°N, 5.2°E, 281 m above sea level, in France. The nearest listed city is Saint-Priest, 19 km away.

Topography around Villefontaine

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

Within 3 km, the terrain around Villefontaine has only modest variations in elevation — a maximum elevation change of 243 m around an average of 288 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 355 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,589 m.

The land around Villefontaine is covered by trees (43%) and cropland (22%) within 3 km, cropland (37%), trees (31%) and grassland (22%) within 16 km, and trees (49%) and grassland (27%) within 80 km.

3 km
243 m
16 km
355 m
80 km
2,589 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Saint-Priest 19 km · Meyzieu 21 km · Vénissieux 23 km · Décines-Charpieu 23 km · Bron 23 km · Vienne 24 km · Saint-Fons 25 km · Lyon 08 26 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 Villefontaine (45.6128°, 5.1506°, elevation 281 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).