Chambéry weather in September

In September, Chambéry sees average daytime highs of 19°C and overnight lows near 9°C, with 128 mm of rain across 12.6 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 17°C by the end. The sky is clear or mostly clear about 30% 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 Chambéry's 3rd-clearest and 11th-windiest month. For the whole year in context, see Chambéry's year-round climate.

Daytime high
19°
4th warmest
Overnight low
9th coldest
Rainfall
128 mm
12.6 wet days
Daylight
12 h 18 min
6:21 AM – 6:40 PM
Cloud cover
57%
3rd clearest
Wind
4 km/h
11th windiest
Solar energy
3.99 kWh/m²
Travel score
5.7
out of 10

Chambéry is commune in Savoie, France.

Air quality
Good
PM2.5 9 µg/m³ · 2019
Density
2,937/km²
people per km²

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 21°C in the first days to 17°C by the end.

A typical September day in Chambéry reaches about 19°C in the afternoon and slips back to 9°C overnight — a 10°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 4°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12111
22111
32111
42110
52010
62010
72010
82010
92010
102010
112010
121910
13199
14199
15199
16199
17199
18199
19189
20189
21189
22188
23188
24188
25188
26188
27178
28178
29178
30178

How September really feels in Chambéry

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.

Chambéry weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°134138.68.90.0
Feb / -3°11411.58.310.10.3
Mar10° / -0°12913.75.611.62.2
Apr14° / 134153.813.33.5
May18° / 17817.70.814.74.7
Jun21° / 11°15315.8015.45.6
Jul23° / 13°14313.8015.16.5
Aug23° / 12°13412.8013.96.6
Sep19° / 12812.6012.35.7
Oct15° / 12112.60.810.74.1
Nov / 14713.44.99.31.4
Dec / -3°15013.68.38.60.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 53%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25347
35347
45347
55347
65347
75446
85347
95347
105248
115248
125149
135050
144951
154951
164852
174654
184654
194456
204357
214456
224357
234258
244159
254159
264060
274060
283961
293961
303862

Chance of precipitation in September

Any precipitation

Chambéry gets around 128 mm of rain over 12.6 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 42% and peaks near 45% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
138
238
338
439
539
639
740
840
941
1041
1142
1242
1343
1443
1544
1644
1744
1844
1945
2044
2144
2244
2344
2444
2544
2644
2745
2845
2945
3045

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 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
160355
263334
364324
467303
568293
669283
771272
872262
973252
1075241
1176231
1277221
1378211
1480200
1581190
1682180
1783170
1884160
1986140
2087130
2188120
2290100
239190
249280
259370
269460
279460
289550
299640
309640

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 6:02 AM to 6:39 AM, and sunset from 7:10 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:027:10
213.16:037:08
313.06:057:06
413.06:067:04
512.96:077:02
612.96:097:00
712.86:106:58
812.86:116:56
912.76:126:54
1012.66:146:52
1112.66:156:50
1212.56:166:48
1312.56:176:46
1412.46:196:44
1512.46:206:42
1612.36:216:40
1712.36:226:38
1812.26:246:36
1912.26:256:34
2012.16:266:32
2112.06:286:30
2212.06:296:28
2311.96:306:26
2411.96:316:24
2511.86:336:22
2611.86:346:20
2711.76:356:18
2811.76:376:16
2911.66:386:14
3011.56:396:12

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.99 kWh/m².

For context, solar energy here swings from a low near 1.23 kWh/m² to a high of 6.14 kWh/m² in July across the year — September's 3.99 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.6Bright
54.5Bright
64.5Bright
74.4Bright
84.4Bright
94.3Bright
104.3Bright
114.2Bright
124.2Bright
134.1Bright
144.0Bright
154.0Bright
163.9Moderate
173.9Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.7Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.3Moderate
303.3Moderate
Planning a trip in September

Is September a good time to visit Chambéry?

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

5.7
Sightseeing
3rd-best month of the year
2.5
Beach & pool
4th-best month of the year

September is a reasonable time to visit Chambéry for sightseeing.

What to pack for Chambéry in September

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

In September, Chambéry sees daytime highs around 19°C and nights near 9°C. Worth packing: rain gear. About 13 days see rain.

rain gear

UV index in Chambéry in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Chambéry peaks around July 15 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 15UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr5Moderate
May7High
Jun7Very high
Jul9Very high
Aug7High
Sep6High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Chambéry?

Chambéry sits at 45.6°N, 5.9°E, 279 m above sea level, in France. The nearest listed city is Aix-les-Bains, 14 km away.

Topography around Chambéry

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

Within 3 km, the terrain around Chambéry has significant variations in elevation — a maximum elevation change of 368 m around an average of 343 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,694 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,637 m.

The land around Chambéry is covered by trees (43%), artificial surfaces (33%) and grassland (21%) within 3 km, trees (64%) and grassland (24%) within 16 km, and trees (51%) and grassland (29%) within 80 km.

3 km
368 m
16 km
1,694 m
80 km
4,637 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
September weather nearby: Aix-les-Bains 14 km · Voiron 34 km · Seynod 38 km · Albertville 38 km · Cran-Gevrier 40 km · Meylan 41 km · Annecy 41 km · Saint-Égrève 41 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 Chambéry (45.5663°, 5.9208°, elevation 279 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).