Ezeiza weather in September

In September, Ezeiza sees average daytime highs of 18°C and overnight lows near 9°C, with 72 mm of rain across 6.7 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 19°C by the end. The sky is clear or mostly clear about 38% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of September to 12 h 18 min by month's end. Set against the rest of the year, September is Ezeiza's 8th-clearest and 1st-windiest month. For the whole year in context, see Ezeiza's year-round climate.

Daytime high
18°
8th warmest
Overnight low
4th coldest
Rainfall
72 mm
6.7 wet days
Daylight
11 h 48 min
6:55 AM – 6:42 PM
Cloud cover
54%
8th clearest
Wind
15 km/h
1st windiest
Solar energy
4.49 kWh/m²
Travel score
6.4
out of 10

Ezeiza is city in the province of Buenos Aires in Argentina.

Founded
1885

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 19°C by the end.

A typical September day in Ezeiza reaches about 18°C in the afternoon and slips back to 9°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 23°C. Set against its neighbours, September runs about 2°C warmer than August and about 3°C cooler than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1179
2179
3179
4179
5189
6189
7189
8189
9189
10189
11189
12189
13189
14189
15189
16189
17189
18189
19199
201910
211910
221910
231910
241910
251910
261910
271910
281910
291910
301911

Ezeiza weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°877.414.16.3
Feb28° / 18°928.213.36.8
Mar26° / 17°857.412.37.4
Apr22° / 13°917.911.17.2
May18° / 10°616.110.26.4
Jun15° / 605.99.75.0
Jul14° / 606.19.94.6
Aug16° / 625.810.75.7
Sep18° / 726.711.86.4
Oct21° / 12°1099.112.96.7
Nov24° / 15°938.413.87.3
Dec27° / 17°858.614.36.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24951
34951
44951
55050
65248
75248
85248
95347
105446
115446
125446
135446
145545
155545
165545
175446
185446
195347
205347
215446
225347
235347
245248
255248
265149
275149
285149
295149
305149

Chance of precipitation in September

Any precipitation

Ezeiza gets around 72 mm of rain over 6.7 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 25% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
124
224
324
424
524
624
724
823
923
1022
1122
1222
1321
1421
1521
1620
1720
1820
1920
2021
2121
2221
2322
2422
2523
2623
2723
2824
2924
3025

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 83% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1851140
2851140
3851140
4851140
5851140
6851140
7851140
8851140
9851140
10841150
11841150
12841150
13831151
14831151
15831151
16841141
17841141
18841141
19841141
20831241
21841231
22831331
23821431
24811531
25801631
26791641
27781741
28771841
29771940
30752050

Wind in September

Winds average 15 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 12 min at the start of September to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over September. Sunrise moves from 7:17 AM to 6:34 AM, and sunset from 6:31 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:176:31
211.37:156:32
311.37:146:32
411.37:136:33
511.47:116:34
611.47:106:35
711.57:086:35
811.57:076:36
911.57:056:37
1011.67:046:37
1111.67:026:38
1211.67:016:39
1311.76:596:40
1411.76:586:40
1511.76:566:41
1611.86:556:42
1711.86:536:43
1811.96:526:43
1911.96:506:44
2011.96:496:45
2112.06:476:46
2212.06:466:46
2312.06:446:47
2412.16:436:48
2512.16:416:49
2612.26:406:50
2712.26:396:50
2812.26:376:51
2912.36:366:52
3012.36:346:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.49 kWh/m².

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 7.47 kWh/m² in December across the year — September's 4.49 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.9Moderate
33.9Moderate
44.0Moderate
54.0Bright
64.1Bright
74.1Bright
84.2Bright
94.2Bright
104.3Bright
114.3Bright
124.4Bright
134.4Bright
144.5Bright
154.5Bright
164.6Bright
174.6Bright
184.6Bright
194.7Bright
204.7Bright
214.7Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
305.0Bright
Planning a trip in September

Is September a good time to visit Ezeiza?

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

6.4
Sightseeing
7th-best month of the year
2.3
Beach & pool
8th-best month of the year

September is a reasonable time to visit Ezeiza for sightseeing.

What to pack for Ezeiza in September

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

In September, Ezeiza sees daytime highs around 18°C and nights near 9°C. Little to plan around — just the basics. About 7 days see rain.

Sea temperature near Ezeiza in September

The nearest coast averages about 15°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 29 km away) is warmest in January at about 25°C and coldest in July near 13°C.

It's comfortable for a long swim from Nov 9 to Apr 20 — about 5.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar23Refreshing
Apr21Refreshing
May17Cool
Jun14Bracing
Jul13Bracing
Aug13Bracing
Sep15Cool
Oct18Cool
Nov21Refreshing
Dec23Refreshing

UV index in Ezeiza 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 Ezeiza peaks around January 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 14UV 12Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May3Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Ezeiza 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 Ezeiza is worst in June — around 25 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2325 µg/m³Dec 1612 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr17Moderate
May22Moderate
Jun25Moderate
Jul25Moderate
Aug24Moderate
Sep19Moderate
Oct16Moderate
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Ezeiza?

Ezeiza sits at 34.9°S, 58.5°W, 16 m above sea level, in Argentina. The nearest listed city is La Unión, 3.0 km away.

Topography around Ezeiza

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

Within 3 km, the terrain around Ezeiza has only modest variations in elevation — a maximum elevation change of 24 m around an average of 21 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 53 m; within 80 km, only modest variations in elevation — a maximum elevation change of 72 m.

The land around Ezeiza is covered by artificial surfaces (46%), trees (27%) and grassland (25%) within 3 km, grassland (37%) and artificial surfaces (35%) within 16 km, and grassland (34%) and cropland (27%) within 80 km.

3 km
24 m
16 km
53 m
80 km
72 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: La Unión 3.0 km · Tristán Suárez 6.0 km · Burzaco 12 km · Adrogué 14 km · Lomas de Zamora 15 km · Banfield 17 km · Isidro Casanova 18 km · Remedios de Escalada de San Martín 18 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

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 Ezeiza (-34.8544°, -58.5247°, elevation 16 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).