Pau weather in September

In September, Pau sees average daytime highs of 22°C and overnight lows near 12°C, with 98 mm of rain across 11.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 35% 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 Pau's 2nd-clearest and 11th-windiest month. For the whole year in context, see Pau's year-round climate.

Daytime high
22°
4th warmest
Overnight low
12°
9th coldest
Rainfall
98 mm
11.9 wet days
Daylight
12 h 18 min
6:47 AM – 7:04 PM
Cloud cover
53%
2nd clearest
Wind
6 km/h
11th windiest
Solar energy
4.24 kWh/m²
Travel score
6.3
out of 10

Pau is city and commune in Pyrénées-Atlantiques, Nouvelle-Aquitaine, France.

Air quality
Good
PM10 17.4 µg/m³ · 2019
Density
2,624/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 23°C in the first days to 20°C by the end.

A typical September day in Pau reaches about 22°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 27°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12414
22414
32314
42314
52313
62313
72313
82313
92313
102313
112213
122213
132213
142212
152212
162212
172212
182212
192112
202112
212112
222112
232112
242111
252111
262111
272011
282011
292011
302011

Pau weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 11213.82.49.22.0
Feb11° / 9712.33.210.22.4
Mar14° / 10713.71.611.63.7
Apr16° / 14516.40.413.24.1
May19° / 10°15916.30.114.55.1
Jun22° / 13°12814015.16.0
Jul24° / 15°10512.1014.96.7
Aug25° / 15°10412.5013.86.7
Sep22° / 12°9811.9012.36.3
Oct18° / 12313.70.110.85.4
Nov13° / 13814.20.69.53.3
Dec10° / 10813.31.18.82.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% 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 (%)
15545
25545
35644
45644
55644
65644
75644
85644
95644
105545
115545
125545
135545
145446
155446
165446
175347
185248
195248
205248
215347
225248
235248
245248
255149
265149
275149
285050
294852
304852

Chance of precipitation in September

Any precipitation

Pau gets around 98 mm of rain over 11.9 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 41% and peaks near 43% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
138
238
338
438
538
638
738
839
939
1040
1141
1241
1342
1443
1543
1643
1743
1843
1943
2043
2143
2243
2342
2442
2542
2643
2743
2843
2943
3043

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 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13430315
23630294
33830284
43931273
54131253
64232243
74332222
84433212
94534202
104634182
114735171
124835161
134935151
144936141
155036131
165136121
175336110
185436100
19563590
20573580
21593470
22603460
23613360
24623350
25633250
26633250
27653140
28663040
29672940
30692830

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 6:30 AM to 7:03 AM, and sunset from 7:32 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.06:307:32
213.06:317:31
312.96:327:29
412.96:337:27
512.86:347:25
612.86:367:23
712.76:377:21
812.76:387:20
912.66:397:18
1012.66:407:16
1112.56:417:14
1212.56:427:12
1312.46:447:10
1412.46:457:08
1512.36:467:06
1612.36:477:04
1712.26:487:03
1812.26:497:01
1912.16:506:59
2012.16:526:57
2112.06:536:55
2212.06:546:53
2311.96:556:51
2411.96:566:49
2511.86:576:48
2611.86:596:46
2711.77:006:44
2811.77:016:42
2911.67:026:40
3011.67:036:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.24 kWh/m².

For context, solar energy here swings from a low near 1.46 kWh/m² to a high of 5.82 kWh/m² in June across the year — September's 4.24 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.7Bright
54.7Bright
64.7Bright
74.6Bright
84.6Bright
94.5Bright
104.5Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.1Bright
184.1Bright
194.0Bright
204.0Moderate
213.9Moderate
223.9Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.7Moderate
273.7Moderate
283.6Moderate
293.6Moderate
303.5Moderate
Planning a trip in September

Is September a good time to visit Pau?

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

6.3
Sightseeing
3rd-best month of the year
4.3
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Pau for sightseeing.

What to pack for Pau in September

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

In September, Pau sees daytime highs around 22°C and nights near 12°C. Worth packing: rain gear. About 12 days see rain.

rain gear

UV index in Pau 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 Pau peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (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 20UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar5Moderate
Apr6High
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Pau 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 Pau is worst in March — around 15 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1515 µg/m³Nov 169 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb14Moderate
Mar15Moderate
Apr14Moderate
May11Good
Jun12Good
Jul10Good
Aug10Good
Sep10Good
Oct10Good
Nov9Good
Dec10Good
Location & terrain

Where is Pau?

Pau sits at 43.3°N, 0.4°W, 219 m above sea level, in France. The nearest listed city is Lourdes, 35 km away.

Topography around Pau

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

Within 3 km, the terrain around Pau has only modest variations in elevation — a maximum elevation change of 73 m around an average of 210 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 342 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,323 m.

The land around Pau is covered by artificial surfaces (47%) and trees (38%) within 3 km, trees (41%), cropland (30%) and grassland (21%) within 16 km, and trees (45%), grassland (30%) and cropland (22%) within 80 km.

3 km
73 m
16 km
342 m
80 km
3,323 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Lourdes 35 km · Tarbes 36 km · Mont-de-Marsan 65 km · Dax 72 km · Auch 85 km · Bayonne 92 km · Anglet 96 km · Biarritz 99 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 Pau (43.3112°, -0.3558°, elevation 219 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).