Montélimar weather in September

In September, Montélimar sees average daytime highs of 24°C and overnight lows near 14°C, with 97 mm of rain across 7.1 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 22°C by the end. The sky is clear or mostly clear about 51% 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 36 min by month's end. Set against the rest of the year, September is Montélimar's 3rd-clearest and 10th-windiest month. For the whole year in context, see Montélimar's year-round climate.

Daytime high
24°
4th warmest
Overnight low
14°
9th coldest
Rainfall
97 mm
7.1 wet days
Daylight
12 h 18 min
6:26 AM – 6:44 PM
Cloud cover
43%
3rd clearest
Wind
12 km/h
10th windiest
Solar energy
4.43 kWh/m²
Travel score
7.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 22°C by the end.

A typical September day in Montélimar reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 29°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)
12716
22716
32616
42615
52615
62615
72615
82615
92515
102515
112515
122514
132514
142414
152414
162414
172414
182414
192314
202313
212313
222313
232313
242313
252213
262213
272213
282212
292212
302112

How September really feels in Montélimar

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.

Montélimar weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7091.291.8
Feb10° / 496.70.610.12.7
Mar15° / 547.50.311.64.7
Apr18° / 789.3013.25.9
May22° / 12°749.2014.66.8
Jun26° / 16°456.3015.37.3
Jul30° / 18°375.30156.2
Aug29° / 18°475.2013.96.4
Sep24° / 14°977.1012.37.5
Oct19° / 10°1169.3010.76.1
Nov13° / 12410.60.49.43.6
Dec10° / 7090.68.72.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27129
37129
47129
57129
67030
76931
86931
96832
106733
116733
126634
136634
146535
156535
166436
176436
186337
196337
206238
216238
226139
236139
246139
256040
266040
275842
285842
295842
305842

Chance of precipitation in September

Any precipitation

Montélimar gets around 97 mm of rain over 7.1 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 23% and peaks near 27% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
118
218
318
419
519
620
720
821
921
1022
1122
1223
1323
1424
1524
1625
1725
1825
1925
2026
2126
2226
2326
2426
2526
2627
2727
2827
2927
3027

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 65% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15627152
25627152
35826142
45926141
56026131
66125131
76125131
86225121
96225121
106325111
116226111
126326110
136326110
146426100
156426100
166426100
176426100
186525100
19662590
20662590
21672580
22682480
23682480
24692470
25702370
26702370
27702370
28712360
29722260
30722260

Wind in September

Winds average 12 km/h in September.

Across September, 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.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over September. Sunrise moves from 6:08 AM to 6:43 AM, and sunset from 7:13 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:087:13
213.06:097:11
313.06:107:10
412.96:127:08
512.96:137:06
612.86:147:04
712.86:157:02
812.76:177:00
912.76:186:58
1012.66:196:56
1112.66:206:54
1212.56:216:52
1312.56:236:50
1412.46:246:48
1512.46:256:46
1612.36:266:44
1712.36:276:42
1812.26:296:41
1912.16:306:39
2012.16:316:37
2112.06:326:35
2212.06:336:33
2311.96:356:31
2411.96:366:29
2511.86:376:27
2611.86:386:25
2711.76:406:23
2811.76:416:21
2911.66:426:19
3011.66:436:17

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.43 kWh/m².

For context, solar energy here swings from a low near 1.37 kWh/m² to a high of 6.92 kWh/m² in July across the year — September's 4.43 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.2Bright
35.2Bright
45.1Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.7Bright
124.6Bright
134.6Bright
144.5Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.1Bright
224.0Bright
234.0Moderate
243.9Moderate
253.9Moderate
263.8Moderate
273.8Moderate
283.7Moderate
293.6Moderate
303.6Moderate
Planning a trip in September

Is September a good time to visit Montélimar?

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

7.5
Sightseeing
1st-best month of the year
6.3
Beach & pool
4th-best month of the year

September is one of the better times to visit Montélimar for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Montélimar in September

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

In September, Montélimar sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes. About 7 days see rain.

light clothes

UV index in Montélimar 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 Montélimar peaks around July 16 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 16UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May6High
Jun7Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Montélimar 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 Montélimar is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodGoodModerateMar 2016 µg/m³Jul 2311 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr16Moderate
May13Moderate
Jun14Moderate
Jul11Good
Aug11Good
Sep12Good
Oct12Moderate
Nov11Good
Dec13Moderate
Location & terrain

Where is Montélimar?

Montélimar sits at 44.6°N, 4.8°E, 86 m above sea level, in France. The nearest listed city is Valence, 43 km away.

Topography around Montélimar

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

Within 3 km, the terrain around Montélimar has only modest variations in elevation — a maximum elevation change of 103 m around an average of 96 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 668 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,285 m.

The land around Montélimar is covered by artificial surfaces (37%) and trees (33%) within 3 km, trees (59%) within 16 km, and trees (69%) within 80 km.

3 km
103 m
16 km
668 m
80 km
2,285 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Valence 43 km · Bagnols-sur-Cèze 45 km · Bourg-lès-Valence 45 km · Orange 47 km · Carpentras 60 km · Romans-sur-Isère 60 km · Sorgues 61 km · Le Pontet 67 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 Montélimar (44.5547°, 4.7547°, elevation 86 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).