Ciudad del Este weather in September

In September, Ciudad del Este sees average daytime highs of 27°C and overnight lows near 16°C, with 156 mm of rain across 10.1 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 47% of the time in September, and the air most often feels humid.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Ciudad del Este's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Ciudad del Este's year-round climate.

Daytime high
27°
8th warmest
Overnight low
16°
5th coldest
Rainfall
156 mm
10.1 wet days
Daylight
11 h 54 min
6:37 AM – 6:29 PM
Cloud cover
48%
3rd clearest
Wind
11 km/h
2nd windiest
Solar energy
4.77 kWh/m²
Travel score
6.7
out of 10

Ciudad del Este is city and departmental capital of Alto Paraná, Paraguay.

Density
2,026/km²
people per km²
Founded
1957

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 27°C through the month.

A typical September day in Ciudad del Este reaches about 27°C in the afternoon and slips back to 16°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 34°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12615
22615
32615
42616
52716
62716
72716
82716
92716
102716
112716
122716
132716
142716
152716
162716
172716
182716
192716
202716
212716
222716
232716
242717
252717
262717
272717
282717
292717
302717

How September really feels in Ciudad del Este

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.

Ciudad del Este weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°15916.113.43.7
Feb31° / 22°15914.712.93.9
Mar30° / 21°14612.612.24.7
Apr28° / 18°1429.411.46.3
May24° / 15°1629.510.87.0
Jun22° / 14°1369.410.46.9
Jul22° / 13°1198.510.67.2
Aug25° / 14°94711.17.6
Sep27° / 16°15610.111.86.7
Oct29° / 19°20013.412.65.4
Nov30° / 20°16211.913.24.9
Dec31° / 21°19015.213.64.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16832
26832
36832
46733
56634
66634
76436
86436
96337
106337
116337
126238
136238
146139
156139
166040
175941
185941
195842
205743
215545
225446
235446
245347
255248
265149
274951
284951
294852
304852

Chance of precipitation in September

Any precipitation

Ciudad del Este gets around 156 mm of rain over 10.1 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 42% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
125
225
326
426
527
627
728
828
929
1030
1130
1231
1331
1432
1532
1633
1734
1835
1936
2036
2137
2238
2339
2439
2540
2641
2741
2841
2942
3042

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
132342860
232342870
331342870
431332980
530322980
630323080
730313090
829303190
9293031100
10292932100
11292832110
12292733110
13282634120
14282534120
15282435130
16282335140
17282335140
18282235150
19272235160
20272135170
21262135180
22252135190
23242135201
24232035211
25222035221
26212035231
27202035251
28192034261
29181934271
30171934281

Wind in September

Winds average 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over September. Sunrise moves from 6:54 AM to 6:22 AM, and sunset from 6:23 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:546:23
211.56:536:23
311.56:526:23
411.56:516:24
511.66:506:24
611.66:496:25
711.66:486:25
811.66:466:25
911.76:456:26
1011.76:446:26
1111.76:436:27
1211.86:426:27
1311.86:416:27
1411.86:406:28
1511.86:386:28
1611.96:376:29
1711.96:366:29
1811.96:356:29
1911.96:346:30
2012.06:336:30
2112.06:326:30
2212.06:316:31
2312.06:296:31
2412.16:286:32
2512.16:276:32
2612.16:266:33
2712.16:256:33
2812.26:246:33
2912.26:236:34
3012.26:226:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.77 kWh/m².

For context, solar energy here swings from a low near 2.82 kWh/m² to a high of 6.39 kWh/m² in December across the year — September's 4.77 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in September

Is September a good time to visit Ciudad del Este?

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

6.7
Sightseeing
5th-best month of the year
6.7
Beach & pool
3rd-best month of the year

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

What to pack for Ciudad del Este in September

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

In September, Ciudad del Este sees daytime highs around 27°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Ciudad del Este in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ciudad del Este peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 19UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5Moderate
Aug6High
Sep7High
Oct9Very high
Nov12Extreme
Dec13Extreme

Air quality in Ciudad del Este 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 Ciudad del Este is worst in September — around 23 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (March, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1622 µg/m³Mar 108 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr9Good
May10Good
Jun10Good
Jul11Good
Aug14Moderate
Sep23Moderate
Oct14Moderate
Nov10Good
Dec8Good
Location & terrain

Where is Ciudad del Este?

Ciudad del Este sits at 25.5°S, 54.7°W, 197 m above sea level, in Paraguay. The nearest listed city is Presidente Franco, 8.0 km away.

Colonia WandaPuerto EsperanzaMedianeira

Topography around Ciudad del Este

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

Within 3 km, the terrain around Ciudad del Este has only modest variations in elevation — a maximum elevation change of 142 m around an average of 209 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 182 m; within 80 km, significant variations in elevation — a maximum elevation change of 568 m.

The land around Ciudad del Este is covered by artificial surfaces (60%) and trees (31%) within 3 km, trees (31%) and cropland (22%) within 16 km, and cropland (42%) and trees (40%) within 80 km.

3 km
142 m
16 km
182 m
80 km
568 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Presidente Franco 8.0 km · Foz do Iguacu 8.0 km · Iguazu 13 km · Santa Terezinha de Itaipu 26 km · São Miguel do Iguaçu 45 km · Colonia Wanda 53 km · Puerto Esperanza 58 km · Medianeira 61 km

Paraguay travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / N
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$7,027
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
64%
of population, 2024
Homicide rate
6.8
per 100k, 2023
Road deaths
22
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 531
Religion
Roman Catholic 80%Protestant 7%Believer 6%other 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 Ciudad del Este (-25.5036°, -54.6507°, elevation 197 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).