Vitrolles weather in September

In September, Vitrolles sees average daytime highs of 25°C and overnight lows near 15°C, with 71 mm of rain across 6.6 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 27°C in the first days to 23°C by the end. The sky is clear or mostly clear about 57% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Vitrolles's 4th-clearest and 11th-windiest month. For the whole year in context, see Vitrolles's year-round climate.

Daytime high
25°
4th warmest
Overnight low
15°
9th coldest
Rainfall
71 mm
6.6 wet days
Daylight
12 h 18 min
6:25 AM – 6:42 PM
Cloud cover
38%
4th clearest
Wind
12 km/h
11th windiest
Solar energy
4.78 kWh/m²
Travel score
7.6
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 27°C in the first days to 23°C by the end.

A typical September day in Vitrolles reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°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)
12817
22817
32817
42717
52717
62716
72716
82716
92616
102616
112616
122616
132616
142615
152515
162515
172515
182515
192515
202415
212415
222414
232414
242414
252414
262314
272314
282314
292314
302313

How September really feels in Vitrolles

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.

Vitrolles 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
Jan11° / 526.50.49.13.1
Feb12° / 415.60.510.23.8
Mar16° / 405.7011.65.6
Apr19° / 648.2013.26.5
May23° / 13°556.6014.57.4
Jun27° / 17°324.5015.27.5
Jul30° / 19°152.6014.96.3
Aug30° / 19°223.4013.86.3
Sep25° / 15°716.6012.37.6
Oct20° / 12°818010.86.8
Nov15° / 909.40.19.54.8
Dec12° / 546.90.28.83.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17723
27723
37723
47624
57624
67624
77624
87624
97624
107624
117426
127426
137426
147426
157327
167228
177228
187129
197129
207030
217030
226931
236832
246832
256832
266832
276733
286634
296634
306535

Chance of precipitation in September

Any precipitation

Vitrolles gets around 71 mm of rain over 6.6 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 22% and peaks near 24% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
116
216
317
417
518
618
719
820
920
1021
1122
1222
1323
1423
1524
1624
1724
1824
1924
2024
2124
2224
2324
2424
2524
2624
2724
2823
2923
3023

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 41% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1372428101
2382428101
338252791
439262781
539262780
639272670
739282670
839282670
939292660
1039292660
1139302660
1239302660
1339302660
1439302550
1539312550
1640312450
1740322450
1840322340
1941322340
2041332240
2142332140
2243342030
2343342030
2444341930
2544351830
2645351830
2746351720
2847351620
2948341620
3049341620

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
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light 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
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours 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 84 minutes over September. Sunrise moves from 6:07 AM to 6:41 AM, and sunset from 7:10 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:077:10
213.06:087:08
312.96:107:06
412.96:117:05
512.86:127:03
612.86:137:01
712.76:146:59
812.76:156:57
912.66:166:55
1012.66:186:53
1112.56:196:52
1212.56:206:50
1312.46:216:48
1412.46:226:46
1512.36:236:44
1612.36:256:42
1712.26:266:40
1812.26:276:38
1912.16:286:36
2012.16:296:35
2112.06:306:33
2212.06:316:31
2311.96:336:29
2411.96:346:27
2511.86:356:25
2611.86:366:23
2711.76:376:21
2811.76:396:19
2911.66:406:18
3011.66:416:16

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.78 kWh/m².

For context, solar energy here swings from a low near 1.61 kWh/m² to a high of 7.33 kWh/m² in July across the year — September's 4.78 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.4Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.1Bright
115.0Bright
125.0Bright
134.9Bright
144.8Bright
154.8Bright
164.7Bright
174.7Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.4Bright
234.3Bright
244.3Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.0Bright
304.0Moderate
Planning a trip in September

Is September a good time to visit Vitrolles?

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

7.6
Sightseeing
1st-best month of the year
6.9
Beach & pool
4th-best month of the year

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

What to pack for Vitrolles in September

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

In September, Vitrolles sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Vitrolles in September

The nearest coast averages about 21°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in August at about 22°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 29 to Sep 28 — about 3 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May16Cool
Jun19Cool
Jul21Refreshing
Aug22Refreshing
Sep21Refreshing
Oct19Cool
Nov17Cool
Dec15Bracing

UV index in Vitrolles 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 Vitrolles 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
Apr6High
May6High
Jun7Very high
Jul9Very high
Aug7High
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Vitrolles 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 Vitrolles 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).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2417 µg/m³Nov 1911 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar17Moderate
Apr17Moderate
May15Moderate
Jun16Moderate
Jul14Moderate
Aug15Moderate
Sep13Moderate
Oct13Moderate
Nov11Good
Dec12Moderate
Location & terrain

Where is Vitrolles?

Vitrolles sits at 43.5°N, 5.2°E, 136 m above sea level, in France. The nearest listed city is Marignane, 5.0 km away.

Topography around Vitrolles

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

Within 3 km, the terrain around Vitrolles has significant variations in elevation — a maximum elevation change of 256 m around an average of 95 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 557 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,897 m.

The land around Vitrolles is covered by artificial surfaces (31%) and grassland (24%) within 3 km, trees (31%) and water (21%) within 16 km, and trees (42%) and water (30%) within 80 km.

3 km
256 m
16 km
557 m
80 km
1,897 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Marignane 5.0 km · Les Pennes-Mirabeau 7.0 km · Marseille 15 13 km · Marseille 16 13 km · Marseille 14 17 km · Martigues 17 km · Gardanne 18 km · Aix-en-Provence 18 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 Vitrolles (43.46°, 5.2486°, elevation 136 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).