Voiron weather in October

In October, Voiron sees average daytime highs of 16°C and overnight lows near 7°C, with 111 mm of precipitation across 11.5 wet days and about 10.7 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 14°C by the end. The sky is clear or mostly clear about 24% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 10 hours by month's end. Set against the rest of the year, October is Voiron's 9th-clearest and 11th-windiest month. For the whole year in context, see Voiron's year-round climate.

Daytime high
16°
6th warmest
Overnight low
7th coldest
Precipitation
111 mm
11.5 wet days
Daylight
10 h 42 min
7:02 AM – 5:44 PM
Cloud cover
63%
9th clearest
Wind
6 km/h
11th windiest
Solar energy
2.6 kWh/m²
Travel score
4.7
out of 10
Air quality
Excellent
PM10 15 µg/m³ · 2019

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 18°C in the first days to 14°C by the end.

A typical October day in Voiron reaches about 16°C in the afternoon and slips back to 7°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 21°C. Set against its neighbours, October runs about 5°C cooler than September and about 6°C warmer than November.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1189
2189
3189
4189
5179
6179
7178
8178
9178
10178
11178
12168
13168
14168
15167
16167
17167
18167
19157
20157
21157
22156
23156
24156
25156
26146
27146
28146
29145
30145
31135

How October really feels in Voiron

Once humidity and wind are folded in, October 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

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

Voiron weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°10512.86.48.90.3
Feb / -1°9211.35.710.10.9
Mar12° / 9612.43.711.62.9
Apr15° / 11213.62.113.24.1
May19° / 13315.30.314.65.3
Jun23° / 13°10813.2015.46.3
Jul25° / 15°9710.9015.17.0
Aug25° / 14°9410.7013.97.0
Sep20° / 11°10310.6012.36.3
Oct16° / 11111.50.310.74.7
Nov10° / 13213.13.39.32.0
Dec / -1°11613.168.60.5

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34159
44159
54060
63961
73961
83961
93961
104060
113961
123961
133961
143961
153961
164060
174060
184060
194159
204159
214159
224159
234159
244159
254060
264159
274159
284159
294060
303961
313961

Chance of precipitation in October

Any precipitationSnow

Voiron gets around 111 mm of rain and snow over 11.5 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 38% and peaks near 41% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1410
2410
3410
4410
5410
6410
7400
8400
9390
10390
11380
12370
13370
14360
15360
16351
17351
18351
19351
20351
21351
22352
23352
24352
25362
26362
27372
28373
29383
30393
31393

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
19010
2919
3928
4928
5937
6937
7946
8946
9955
10955
11964
12964
13973
14973
15982
16982
17982
18991
19991
20991
21991
22991
23991
241000
251000
261000
271000
281000
291000
301000
311000

Wind in October

Winds average 6 km/h in October.

Across October, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over October. Sunrise moves from 6:42 AM to 7:23 AM, and sunset from 6:12 PM to 5:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:426:12
211.46:436:10
311.46:446:08
411.36:466:06
511.36:476:04
611.26:486:02
711.26:506:00
811.16:515:58
911.16:525:56
1011.06:545:54
1111.06:555:53
1210.96:565:51
1310.96:585:49
1410.86:595:47
1510.87:005:45
1610.77:025:44
1710.67:035:42
1810.67:045:40
1910.57:065:38
2010.57:075:37
2110.47:095:35
2210.47:105:33
2310.37:115:32
2410.37:135:30
2510.27:145:29
2610.27:165:27
2710.17:175:26
2810.17:185:24
2910.07:205:23
3010.07:215:21
3110.07:235:20

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.6 kWh/m².

For context, solar energy here swings from a low near 1.21 kWh/m² to a high of 6.23 kWh/m² in July across the year — October's 2.6 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.1Moderate
33.1Moderate
43.0Moderate
53.0Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.8Moderate
102.8Moderate
112.8Moderate
122.7Moderate
132.7Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.4Moderate
222.4Moderate
232.4Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.2Moderate
282.2Moderate
292.1Moderate
302.1Moderate
312.1Moderate
Planning a trip in October

Is October a good time to visit Voiron?

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

4.7
Sightseeing
6th-best month of the year
0.7
Beach & pool
6th-best month of the year

October is a reasonable time to visit Voiron for sightseeing.

What to pack for Voiron in October

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

In October, Voiron sees daytime highs around 16°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 12 days see rain.

a warm layerrain gear

UV index in Voiron in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Voiron peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 16UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5High
May7High
Jun7Very high
Jul9Very high
Aug7High
Sep5High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Voiron in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Voiron 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 2117 µg/m³Aug 1312 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb15Moderate
Mar17Moderate
Apr17Moderate
May14Moderate
Jun16Moderate
Jul12Good
Aug12Good
Sep12Moderate
Oct13Moderate
Nov13Moderate
Dec15Moderate
Location & terrain

Where is Voiron?

Voiron sits at 45.4°N, 5.6°E, 301 m above sea level, in France. The nearest listed city is Saint-Égrève, 16 km away.

Topography around Voiron

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

Within 3 km, the terrain around Voiron has significant variations in elevation — a maximum elevation change of 580 m around an average of 383 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,724 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,838 m.

The land around Voiron is covered by trees (47%), grassland (26%) and artificial surfaces (20%) within 3 km, trees (56%) and grassland (25%) within 16 km, and trees (52%) and grassland (26%) within 80 km.

3 km
580 m
16 km
1,724 m
80 km
3,838 m
treesgrasslandcroplandartificial surfacesbare terrainwater
October weather nearby: Saint-Égrève 16 km · Fontaine 21 km · Meylan 23 km · Grenoble 23 km · Saint-Martin-d'Hères 25 km · Échirolles 26 km · Chambéry 34 km · Villefontaine 44 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 Voiron (45.3647°, 5.5856°, elevation 301 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).