Pirané weather in September

In September, Pirané sees average daytime highs of 27°C and overnight lows near 16°C, with 84 mm of rain across 7.7 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 9th-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 54% 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 Pirané's 2nd-clearest and 1st-windiest month. For the whole year in context, see Pirané's year-round climate.

Daytime high
27°
8th warmest
Overnight low
16°
5th coldest
Rainfall
84 mm
7.7 wet days
Daylight
11 h 54 min
6:55 AM – 6:46 PM
Cloud cover
42%
2nd clearest
Wind
15 km/h
1st windiest
Solar energy
4.88 kWh/m²
Travel score
7.1
out of 10

Pirané is place in Formosa Province, Argentina.

Density
239/km²
people per km²
Founded
1912

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 Pirané 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 19°C and 35°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)
12615
22615
32615
42715
52715
62715
72715
82715
92715
102715
112715
122715
132715
142715
152715
162715
172715
182715
192716
202716
212716
222716
232716
242716
252716
262716
272716
282817
292817
302817

How September really feels in Pirané

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.

Pirané weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°12211.413.43.5
Feb32° / 22°12211.712.93.8
Mar31° / 21°13311.112.24.7
Apr28° / 18°1439.711.46.4
May24° / 15°101910.87.1
Jun22° / 13°787.910.47.0
Jul22° / 12°616.710.67.4
Aug25° / 13°55611.17.9
Sep27° / 16°847.711.87.1
Oct29° / 18°15111.312.65.5
Nov30° / 20°17410.913.34.9
Dec32° / 22°15111.813.63.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% 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
37129
47030
57030
66832
76832
86733
96733
106733
116634
126634
136634
146634
156535
166436
176436
186436
196337
206337
216337
226139
236139
246040
255941
265842
275743
285644
295644
305644

Chance of precipitation in September

Any precipitation

Pirané gets around 84 mm of rain over 7.7 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 26% and peaks near 33% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
119
219
319
419
520
620
721
821
922
1022
1123
1224
1325
1426
1526
1627
1728
1828
1929
2029
2130
2230
2330
2431
2531
2632
2732
2832
2933
3033

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 43% 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 (%)
150231890
250231890
349231890
4492318100
5492318100
6492319100
7482319100
8482319100
9482319100
10472320100
11472320100
12462320101
13462321101
14452321101
15452321101
16442321101
17442321111
18432321112
19432320122
20422320122
21412321132
22402321143
23392321143
24372321153
25362322164
26352222174
27342222184
28322223194
29312223204
30302123215

Wind in September

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

Across September, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light 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 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 7:12 AM to 6:39 AM, and sunset from 6:40 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:126:40
211.57:116:41
311.57:106:41
411.57:096:41
511.67:086:42
611.67:076:42
711.67:056:43
811.67:046:43
911.77:036:43
1011.77:026:44
1111.77:016:44
1211.77:006:45
1311.86:596:45
1411.86:586:45
1511.86:566:46
1611.96:556:46
1711.96:546:47
1811.96:536:47
1911.96:526:48
2012.06:516:48
2112.06:496:48
2212.06:486:49
2312.06:476:49
2412.16:466:50
2512.16:456:50
2612.16:446:50
2712.16:436:51
2812.26:426:51
2912.26:406:52
3012.26:396:52

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.88 kWh/m².

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 6.76 kWh/m² in January across the year — September's 4.88 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.2Bright
Planning a trip in September

Is September a good time to visit Pirané?

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

7.1
Sightseeing
3rd-best month of the year
7.2
Beach & pool
1st-best month of the year

September is one of the better times to visit Pirané for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Pirané in September

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

In September, Pirané sees daytime highs around 27°C and nights near 16°C. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Pirané in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Pirané peaks around January 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 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 17UV 14Jul 15UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5Moderate
Jul5Moderate
Aug5High
Sep8Very high
Oct8Very high
Nov12Extreme
Dec14Extreme

Air quality in Pirané 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 Pirané is worst in September — around 30 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (May, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodSep 1329 µg/m³May 197 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar12Moderate
Apr7Good
May7Good
Jun7Good
Jul10Good
Aug24Moderate
Sep30Moderate
Oct17Moderate
Nov11Good
Dec9Good
Location & terrain

Where is Pirané?

Pirané sits at 25.7°S, 59.1°W, 65 m above sea level, in Argentina. The nearest listed city is General José de San Martín, 92 km away.

Topography around Pirané

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

Within 3 km, the terrain around Pirané has only modest variations in elevation — a maximum elevation change of 13 m around an average of 82 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 22 m; within 80 km, only modest variations in elevation — a maximum elevation change of 50 m.

The land around Pirané is covered by grassland (44%) and trees (36%) within 3 km, trees (61%) and grassland (36%) within 16 km, and trees (63%) and grassland (35%) within 80 km.

3 km
13 m
16 km
22 m
80 km
50 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: General José de San Martín 92 km · Formosa 106 km · Tres Isletas 148 km · Pilar 149 km · Juan José Castelli 153 km · Asuncion 155 km · Lambaré 157 km · Villa Elisa 158 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 Pirané (-25.7327°, -59.1099°, elevation 65 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).