Filadelfia weather in September

In September, Filadelfia sees average daytime highs of 31°C and overnight lows near 19°C, with 51 mm of rain across 6.6 wet days and about 11.9 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 52% of the time in September, and the air most often feels dry.

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 Filadelfia's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Filadelfia's year-round climate.

Daytime high
31°
7th warmest
Overnight low
19°
5th coldest
Rainfall
51 mm
6.6 wet days
Daylight
11 h 54 min
6:58 AM – 6:51 PM
Cloud cover
44%
2nd clearest
Wind
14 km/h
2nd windiest
Solar energy
4.98 kWh/m²
Travel score
5.3
out of 10

Filadelfia is city and department capital of Boqueron, Paraguay.

Density
1/km²
people per km²
Founded
1931

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 31°C through the month.

A typical September day in Filadelfia reaches about 31°C in the afternoon and slips back to 19°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 38°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13018
23018
33018
43018
53018
63018
73018
83018
93018
103018
113018
123018
133018
143019
153019
163119
173119
183119
193119
203119
213119
223119
233119
243119
253119
263119
273120
283120
293120
303220

How September really feels in Filadelfia

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.

Filadelfia weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan35° / 24°12912.713.22.6
Feb33° / 24°12912.112.83.0
Mar32° / 23°12811.612.23.9
Apr30° / 20°909.511.55.3
May26° / 17°729.210.96.9
Jun25° / 16°426.910.77.4
Jul25° / 15°31610.87.7
Aug28° / 16°314.711.27.0
Sep31° / 19°516.611.95.3
Oct33° / 21°981012.53.7
Nov33° / 22°12811.313.13.4
Dec34° / 24°12012.513.32.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27129
37030
47030
56931
66832
76733
86733
96634
106634
116634
126634
136634
146535
156535
166535
176535
186436
196436
206535
216436
226238
236238
246139
256139
265941
275842
285743
295644
305545

Chance of precipitation in September

Any precipitation

Filadelfia gets around 51 mm of rain over 6.6 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 29% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
115
215
316
416
517
617
717
818
918
1018
1118
1219
1319
1419
1520
1621
1721
1822
1923
2024
2124
2225
2326
2427
2527
2628
2728
2829
2929
3029

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 36% of days. Sticky, muggy-or-worse air turns up on roughly 14% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
145262360
244262370
344262370
443262470
543262470
642262480
742262580
841262580
940262580
1040262680
1139262690
1239252790
1338252790
14382528100
15372428100
16372428110
17362428121
18362428121
19352328131
20342327141
21332327161
22322327172
23312227182
24302226202
25292126212
26272126223
27262126233
28252027243
29252027254
30242027264

Wind in September

Winds average 14 km/h in September.

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
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

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 7:13 AM to 6:44 AM, and sunset from 6:46 PM to 6:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:136:46
211.67:126:47
311.67:116:47
411.67:106:47
511.67:096:47
611.77:086:48
711.77:076:48
811.77:066:48
911.77:056:49
1011.77:046:49
1111.87:036:49
1211.87:026:49
1311.87:016:50
1411.87:006:50
1511.96:596:50
1611.96:586:51
1711.96:576:51
1811.96:566:51
1911.96:556:52
2012.06:546:52
2112.06:536:52
2212.06:526:52
2312.06:516:53
2412.06:506:53
2512.16:496:53
2612.16:486:54
2712.16:476:54
2812.16:466:54
2912.26:456:55
3012.26:446:55

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.98 kWh/m².

For context, solar energy here swings from a low near 2.87 kWh/m² to a high of 6.63 kWh/m² in January across the year — September's 4.98 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in September

Is September a good time to visit Filadelfia?

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

5.3
Sightseeing
5th-best month of the year
7.5
Beach & pool
2nd-best month of the year

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

What to pack for Filadelfia in September

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

In September, Filadelfia sees daytime highs around 31°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Filadelfia in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Filadelfia peaks around January 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 18UV 16Jul 12UV 6
UV index (midday)Level
Jan16Extreme
Feb14Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug7High
Sep9Very high
Oct10Very high
Nov13Extreme
Dec14Extreme

Air quality in Filadelfia 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 Filadelfia is worst in September — around 29 µg/m³ PM2.5 (moderate), about 4.5× the cleanest month (April, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1728 µg/m³Apr 227 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar9Good
Apr7Good
May7Good
Jun8Good
Jul9Good
Aug18Moderate
Sep29Moderate
Oct21Moderate
Nov14Moderate
Dec11Good
Location & terrain

Where is Filadelfia?

Filadelfia sits at 22.3°S, 60.0°W, 140 m above sea level, in Paraguay. The nearest listed city is Loma Plata, 21 km away.

ConcepciónBela VistaYby Yaú

Topography around Filadelfia

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

Within 3 km, the terrain around Filadelfia has only modest variations in elevation — a maximum elevation change of 8 m around an average of 138 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 20 m; within 80 km, only modest variations in elevation — a maximum elevation change of 71 m.

The land around Filadelfia is covered by trees (39%) and grassland (31%) within 3 km, grassland (50%) and trees (29%) within 16 km, and trees (46%) and grassland (40%) within 80 km.

3 km
8 m
16 km
20 m
80 km
71 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Loma Plata 21 km · Concepción 291 km · Bela Vista 361 km · Yby Yaú 365 km · Villamontes 375 km · Yacuiba 377 km · Profesor Salvador Mazza 378 km · Tartagal 388 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 Filadelfia (-22.3394°, -60.0316°, elevation 140 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).