Blagnac weather in September

In September, Blagnac sees average daytime highs of 25°C and overnight lows near 14°C, with 57 mm of rain across 7.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 36% 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 Blagnac's 3rd-clearest and 10th-windiest month. For the whole year in context, see Blagnac's year-round climate.

Daytime high
25°
4th warmest
Overnight low
14°
9th coldest
Rainfall
57 mm
7.9 wet days
Daylight
12 h 18 min
6:40 AM – 6:58 PM
Cloud cover
52%
3rd clearest
Wind
10 km/h
10th windiest
Solar energy
4.28 kWh/m²
Travel score
7.2
out of 10
Air quality
Excellent
PM10 14.2 µg/m³ · 2019

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 26°C in the first days to 23°C by the end.

A typical September day in Blagnac reaches about 25°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 30°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12716
22715
32615
42615
52615
62615
72615
82615
92615
102614
112514
122514
132514
142514
152514
162514
172414
182414
192413
202413
212413
222413
232313
242313
252313
262313
272313
282313
292312
302212

How September really feels in Blagnac

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.

Blagnac weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 5910.70.79.12.2
Feb11° / 468.90.510.22.9
Mar15° / 5510.10.211.64.6
Apr18° / 7711.4013.25.5
May21° / 12°8012014.56.2
Jun25° / 15°679.2015.26.8
Jul28° / 17°558.1014.96.5
Aug28° / 17°708.1013.86.4
Sep25° / 14°577.9012.37.2
Oct20° / 11°6210.1010.86.2
Nov14° / 681109.53.9
Dec11° / 5810.30.28.82.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15842
25842
35842
45842
55842
65842
75842
85743
95644
105644
115545
125446
135446
145347
155347
165347
175248
185149
195149
205149
215149
225149
235050
244951
254951
264951
274753
284753
294654
304555

Chance of precipitation in September

Any precipitation

Blagnac gets around 57 mm of rain over 7.9 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 27% and peaks near 30% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
123
223
323
423
523
624
724
825
925
1026
1127
1227
1328
1428
1529
1629
1729
1829
1929
2029
2129
2229
2329
2429
2529
2630
2730
2830
2930
3030

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 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14028248
24228237
34328236
44428225
54628224
64729214
74829203
84929203
94929192
105030192
115030182
125130181
135230171
145230171
155230171
165330161
175330161
185430151
195529151
205629141
215728141
225928130
235928130
246027130
256126130
266126130
276225130
286324130
296324130
306423130

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1611calm
1711calm
1811calm
1911calm
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 6:23 AM to 6:56 AM, and sunset from 7:26 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:237:26
213.06:247:24
313.06:257:22
412.96:267:20
512.96:277:18
612.86:287:17
712.86:307:15
812.76:317:13
912.76:327:11
1012.66:337:09
1112.56:347:07
1212.56:357:05
1312.46:367:03
1412.46:387:01
1512.36:397:00
1612.36:406:58
1712.26:416:56
1812.26:426:54
1912.16:436:52
2012.16:456:50
2112.06:466:48
2212.06:476:46
2311.96:486:44
2411.96:496:42
2511.86:506:40
2611.86:526:39
2711.76:536:37
2811.76:546:35
2911.66:556:33
3011.66:566:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.28 kWh/m².

For context, solar energy here swings from a low near 1.3 kWh/m² to a high of 6.11 kWh/m² in July across the year — September's 4.28 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.8Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.6Bright
94.6Bright
104.5Bright
114.5Bright
124.4Bright
134.4Bright
144.3Bright
154.3Bright
164.2Bright
174.2Bright
184.1Bright
194.0Bright
204.0Bright
214.0Moderate
223.9Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.6Moderate
283.6Moderate
293.5Moderate
303.5Moderate
Planning a trip in September

Is September a good time to visit Blagnac?

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

7.2
Sightseeing
1st-best month of the year
6.2
Beach & pool
4th-best month of the year

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

What to pack for Blagnac in September

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

In September, Blagnac sees daytime highs around 25°C and nights near 14°C. Worth packing: light clothes. About 8 days see rain.

light clothes

UV index in Blagnac 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 Blagnac 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
Feb2Moderate
Mar4Moderate
Apr6High
May7High
Jun8Very high
Jul9Very high
Aug7Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Blagnac 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 Blagnac 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).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1916 µg/m³Sep 1110 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar16Moderate
Apr15Moderate
May12Good
Jun13Moderate
Jul10Good
Aug11Good
Sep10Good
Oct11Good
Nov11Good
Dec12Moderate
Location & terrain

Where is Blagnac?

Blagnac sits at 43.6°N, 1.4°E, 150 m above sea level, in France. The nearest listed city is Colomiers, 5.0 km away.

Topography around Blagnac

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

Within 3 km, the terrain around Blagnac has only modest variations in elevation — a maximum elevation change of 60 m around an average of 139 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 181 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,566 m.

The land around Blagnac is covered by artificial surfaces (53%) and grassland (21%) within 3 km, artificial surfaces (28%), trees (27%) and cropland (27%) within 16 km, and cropland (46%), trees (30%) and grassland (21%) within 80 km.

3 km
60 m
16 km
181 m
80 km
1,566 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Colomiers 5.0 km · Toulouse 6.0 km · Tournefeuille 8.0 km · Balma 9.0 km · Plaisance-du-Touch 11 km · Cugnaux 12 km · Muret 20 km · Montauban 42 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 Blagnac (43.6367°, 1.3897°, elevation 150 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).