Barcelona weather in September

In September, Barcelona sees average daytime highs of 28°C and overnight lows near 26°C, with 43 mm of rain across 10.2 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 20% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Barcelona's 10th-clearest and 11th-windiest month. For the whole year in context, see Barcelona's year-round climate.

Daytime high
28°
1st warmest
Overnight low
26°
11th coldest
Rainfall
43 mm
10.2 wet days
Daylight
12 h 06 min
5:41 AM – 5:45 PM
Cloud cover
67%
10th clearest
Wind
11 km/h
11th windiest
Solar energy
6.07 kWh/m²
Travel score
5.7
out of 10

Barcelona is capital of Anzoátegui State, Venezuela.

Air quality
High
PM2.5 35 µg/m³ · 2011
Density
1,155/km²
people per km²
Founded
1638

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Barcelona reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826

How September really feels in Barcelona

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Barcelona weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 24°40.711.58.7
Feb25° / 24°30.311.78.8
Mar25° / 24°70.811.98.4
Apr26° / 25°101.912.27.8
May27° / 25°38712.56.8
Jun27° / 25°4711.312.66.1
Jul27° / 25°5211.512.56.2
Aug27° / 26°5712.712.35.9
Sep28° / 26°4310.212.15.7
Oct28° / 26°337.611.86.4
Nov27° / 26°337.411.56.8
Dec26° / 25°8211.48.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% 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 61%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24357
34357
44258
54258
64159
74159
84060
94060
103961
113961
123862
133862
143763
153763
163664
173664
183763
193763
203763
213763
223763
233763
243862
253862
263862
273862
283862
293862
303862

Chance of precipitation in September

Any precipitation

Barcelona gets around 43 mm of rain over 10.2 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 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
132
232
332
432
533
633
733
834
934
1035
1135
1235
1336
1436
1536
1636
1736
1836
1935
2035
2134
2234
2333
2432
2532
2631
2731
2830
2930
3029

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the miserable band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
14852
24852
34753
44753
54753
64753
74753
84654
94654
104555
114555
124456
134456
144357
154357
164258
174159
184159
194060
203961
213862
223862
233763
243664
253664
263664
273565
283565
293565
303466

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 5:43 AM to 5:40 AM, and sunset from 5:54 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:435:54
212.25:425:54
312.25:425:53
412.25:425:53
512.25:425:52
612.25:425:51
712.15:425:51
812.15:425:50
912.15:425:49
1012.15:425:49
1112.15:425:48
1212.15:425:47
1312.15:425:47
1412.15:425:46
1512.15:425:45
1612.15:415:45
1712.05:415:44
1812.05:415:43
1912.05:415:43
2012.05:415:42
2112.05:415:41
2212.05:415:41
2312.05:415:40
2412.05:415:39
2512.05:415:39
2612.05:415:38
2711.95:415:38
2811.95:415:37
2911.95:405:36
3011.95:405:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.07 kWh/m².

For context, solar energy here swings from a low near 5.21 kWh/m² to a high of 6.6 kWh/m² in March across the year — September's 6.07 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.0Intense
106.0Intense
116.0Intense
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
Planning a trip in September

Is September a good time to visit Barcelona?

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

5.7
Sightseeing
12th-best month of the year
6.7
Beach & pool
9th-best month of the year

September is a reasonable time to visit Barcelona for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Barcelona in September

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

In September, Barcelona sees daytime highs around 28°C and nights near 26°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

Sea temperature near Barcelona in September

The nearest coast averages about 28°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 21 km away) is warmest in October at about 28°C and coldest in February near 24°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb24Warm
Mar25Warm
Apr25Warm
May26Warm
Jun26Warm
Jul26Warm
Aug28Warm
Sep28Tropical
Oct28Tropical
Nov28Warm
Dec26Warm

UV index in Barcelona in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Barcelona peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highApr 11UV 13Dec 12UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug11Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Barcelona 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 Barcelona is worst in September — around 53 µg/m³ PM2.5 (poor), about 3.3× the cleanest month (January, 16 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Barcelona's WHO annual average of 35 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 1652 µg/m³Jan 1617 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb20Moderate
Mar26Moderate
Apr36Poor
May40Poor
Jun41Poor
Jul48Poor
Aug43Poor
Sep53Poor
Oct42Poor
Nov34Moderate
Dec20Moderate
Location & terrain

Where is Barcelona?

Barcelona sits at 10.1°N, 64.7°W, 3 m above sea level, in Venezuela. The nearest listed city is Lecherías, 6.0 km away.

Topography around Barcelona

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

Within 3 km, the terrain around Barcelona has only modest variations in elevation — a maximum elevation change of 145 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 871 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,576 m.

The land around Barcelona is covered by artificial surfaces (65%) within 3 km, water (37%) and trees (31%) within 16 km, and trees (49%) and water (35%) within 80 km.

3 km
145 m
16 km
871 m
80 km
2,576 m
treesshrubsgrasslandartificial surfacesbare terrainwater
September weather nearby: Lecherías 6.0 km · Puerto La Cruz 10 km · Puerto Píritu 39 km · Clarines 57 km · Cumaná 66 km · Araya 68 km · Aragua de Barcelona 77 km · Anaco 83 km

Venezuela travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 0% of US
price level, 2011
GDP per capita
$3,495
2025
Happiness
5.8 / 10
World Happiness, 2025
Homicide rate
12.6
per 100k, 2022
Road deaths
39
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 520
Religion
Roman Catholic 48%Protestant 32%none 14%believer 4%

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 Barcelona (10.1384°, -64.6877°, elevation 3 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).