Pessac weather in September

In September, Pessac sees average daytime highs of 24°C and overnight lows near 13°C, with 60 mm of rain across 8.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 8th-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 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 Pessac's 3rd-clearest and 10th-windiest month. For the whole year in context, see Pessac's year-round climate.

Daytime high
24°
4th warmest
Overnight low
13°
9th coldest
Rainfall
60 mm
8.8 wet days
Daylight
12 h 18 min
6:48 AM – 7:06 PM
Cloud cover
52%
3rd clearest
Wind
9 km/h
10th windiest
Solar energy
4.23 kWh/m²
Travel score
7.1
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 Pessac reaches about 24°C in the afternoon and slips back to 13°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 3°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12615
22615
32614
42614
52614
62614
72614
82514
92514
102514
112514
122513
132513
142513
152413
162413
172413
182413
192413
202413
212313
222313
232312
242312
252312
262312
272312
282212
292212
302212

Pessac weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 7211.392.4
Feb12° / 529.310.13.0
Mar15° / 5610.211.64.7
Apr18° / 7311.913.25.5
May21° / 11°7712.114.66.2
Jun25° / 14°659.415.36.9
Jul27° / 16°477.4157.0
Aug27° / 16°547.513.97.0
Sep24° / 13°608.812.37.1
Oct20° / 10°6910.510.76.1
Nov14° / 8211.79.43.9
Dec11° / 7511.48.72.6

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 46%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
35941
45941
55842
65842
75743
85842
95743
105644
115644
125545
135545
145446
155446
165347
175248
185248
195248
205248
215149
225149
235149
245050
255050
264951
274951
284852
294753
304654

Chance of precipitation in September

Any precipitation

Pessac gets around 60 mm of rain over 8.8 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 30% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
125
225
325
426
526
627
727
828
928
1029
1130
1230
1330
1431
1531
1631
1731
1831
1931
2031
2131
2231
2331
2431
2531
2631
2732
2832
2932
3032

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 50% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13832236
24032225
34132215
44332205
54433194
64533194
74633183
84633173
94734173
104734162
114834162
124834162
134934161
144934161
155034151
165034151
175134141
185233141
195433130
205433130
215533120
225533120
235533120
245732110
255732110
265732110
275831110
285831110
296030100
306129100

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 6:29 AM to 7:05 AM, and sunset from 7:35 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.16:297:35
213.06:317:33
313.06:327:31
412.96:337:29
512.96:347:28
612.86:357:26
712.86:377:24
812.76:387:22
912.76:397:20
1012.66:407:18
1112.66:427:16
1212.56:437:14
1312.56:447:12
1412.46:457:10
1512.46:467:08
1612.36:487:06
1712.36:497:04
1812.26:507:02
1912.16:517:00
2012.16:536:58
2112.06:546:56
2212.06:556:54
2311.96:566:52
2411.96:586:50
2511.86:596:48
2611.87:006:46
2711.77:016:44
2811.77:036:43
2911.67:046:41
3011.67:056:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.23 kWh/m².

For context, solar energy here swings from a low near 1.25 kWh/m² to a high of 6.18 kWh/m² in June across the year — September's 4.23 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
94.5Bright
104.5Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.1Bright
184.0Bright
194.0Bright
204.0Moderate
213.9Moderate
223.9Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.6Moderate
273.6Moderate
283.5Moderate
293.5Moderate
303.4Moderate
Planning a trip in September

Is September a good time to visit Pessac?

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

7.1
Sightseeing
1st-best month of the year
6.0
Beach & pool
4th-best month of the year

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

What to pack for Pessac in September

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

In September, Pessac sees daytime highs around 24°C and nights near 13°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Pessac in September

The nearest coast averages about 20°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 59 km away) is warmest in August at about 21°C and coldest in February near 11°C.

It's comfortable for a long swim from Jul 9 to Sep 15 — about 2.3 months when the water holds above 20°C.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb11Bracing
Mar12Bracing
Apr13Bracing
May15Cool
Jun18Cool
Jul21Refreshing
Aug21Refreshing
Sep20Refreshing
Oct18Cool
Nov16Cool
Dec13Bracing

UV index in Pessac 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 Pessac peaks around July 18 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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 highModerateLowJul 18UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr6High
May6High
Jun7Very high
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Pessac?

Pessac sits at 44.8°N, 0.6°W, 37 m above sea level, in France. The nearest listed city is Talence, 3.0 km away.

Topography around Pessac

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

Within 3 km, the terrain around Pessac has only modest variations in elevation — a maximum elevation change of 47 m around an average of 35 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 98 m; within 80 km, only modest variations in elevation — a maximum elevation change of 199 m.

The land around Pessac is covered by artificial surfaces (54%) and trees (33%) within 3 km, trees (46%) and artificial surfaces (25%) within 16 km, and trees (44%) and grassland (24%) within 80 km.

3 km
47 m
16 km
98 m
80 km
199 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Talence 3.0 km · Gradignan 4.0 km · Mérignac 4.0 km · Bordeaux 6.0 km · Villenave-d'Ornon 6.0 km · Bègles 6.0 km · Le Bouscat 7.0 km · Cestas 8.0 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 Pessac (44.8056°, -0.6324°, elevation 37 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).