Pirenópolis weather in September

In September, Pirenópolis sees average daytime highs of 32°C and overnight lows near 20°C, with 27 mm of rain across 5.4 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 46% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Pirenópolis's 5th-clearest and 3rd-windiest month. For the whole year in context, see Pirenópolis's year-round climate.

Daytime high
32°
1st warmest
Overnight low
20°
10th coldest
Rainfall
27 mm
5.4 wet days
Daylight
11 h 54 min
7:13 AM – 7:08 PM
Cloud cover
44%
5th clearest
Wind
9 km/h
3rd windiest
Solar energy
6.05 kWh/m²
Travel score
4.5
out of 10

Pirenópolis is human settlement in Brazil.

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 32°C through the month.

A typical September day in Pirenópolis reaches about 32°C in the afternoon and slips back to 20°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 35°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13219
23219
33219
43219
53219
63219
73219
83219
93219
103219
113220
123220
133220
143220
153220
163220
173220
183220
193220
203220
213220
223220
233220
243220
253220
263220
273220
283220
293220
303220

How September really feels in Pirenópolis

Once humidity and wind are folded in, September averages 23 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
23
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.

Pirenópolis weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°27424.312.84.1
Feb28° / 20°20321.212.53.9
Mar28° / 20°21523.312.14.0
Apr29° / 19°8913.411.75.1
May29° / 18°162.811.36.7
Jun28° / 16°40.811.17.4
Jul29° / 16°10.111.27.4
Aug31° / 17°50.911.56.0
Sep32° / 20°275.411.94.5
Oct31° / 20°11916.112.43.8
Nov29° / 20°22423.212.73.8
Dec28° / 20°28024.712.94.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28020
38020
47921
57921
67822
77822
87624
97525
107525
117426
127327
137228
147228
157129
167030
176931
186832
196832
206733
216634
226535
236436
246238
256139
265941
275842
285743
295743
305644

Chance of precipitation in September

Any precipitation

Pirenópolis gets around 27 mm of rain over 5.4 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 19% and peaks near 37% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
16
27
37
47
58
68
78
89
910
1010
1111
1212
1313
1415
1516
1617
1719
1820
1921
2023
2125
2226
2328
2429
2531
2632
2733
2835
2936
3037

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 55% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1741781
2731881
3731881
4731881
5721891
6721891
7711892
87018102
97018102
106918112
116819112
126719122
136519133
146320143
156121153
165921164
175722174
185423185
195124196
204924217
214625227
224325248
234025259
2437262710
2534262812
2632253013
2730253114
2828243315
2927243416
3025233417

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 42 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over September. Sunrise moves from 7:25 AM to 7:01 AM, and sunset from 7:06 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.77:257:06
211.77:247:06
311.77:237:06
411.77:237:06
511.77:227:07
611.87:217:07
711.87:207:07
811.87:197:07
911.87:197:07
1011.87:187:07
1111.87:177:07
1211.97:167:07
1311.97:157:07
1411.97:147:07
1511.97:147:07
1611.97:137:08
1711.97:127:08
1811.97:117:08
1912.07:107:08
2012.07:097:08
2112.07:097:08
2212.07:087:08
2312.07:077:08
2412.07:067:08
2512.07:057:08
2612.17:057:08
2712.17:047:09
2812.17:037:09
2912.17:027:09
3012.17:017:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.05 kWh/m².

For context, solar energy here swings from a low near 4.66 kWh/m² to a high of 6.06 kWh/m² in October across the year — September's 6.05 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
46.0Bright
56.0Bright
66.0Bright
76.0Intense
86.0Intense
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

Hazard calendar for Pirenópolis

In seasonPeak

None of Pirenópolis's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Pirenópolis's monsoon runs November–March, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Pirenópolis?

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

4.5
Sightseeing
6th-best month of the year
7.2
Beach & pool
5th-best month of the year

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

What to pack for Pirenópolis in September

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

In September, Pirenópolis sees daytime highs around 32°C and nights near 20°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Pirenópolis in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Pirenópolis peaks around February 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 12UV 15Jun 22UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep13Extreme
Oct13Extreme
Nov14Extreme
Dec14Extreme

Air quality in Pirenópolis 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 Pirenópolis is worst in September — around 24 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (January, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1823 µg/m³Jan 159 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar11Good
Apr11Good
May11Good
Jun10Good
Jul9Good
Aug12Good
Sep24Moderate
Oct17Moderate
Nov10Good
Dec10Good
Location & terrain

Where is Pirenópolis?

Pirenópolis sits at 15.9°S, 49.0°W, 751 m above sea level, in Brazil. The nearest listed city is Cocalzinho de Goiás, 21 km away.

Topography around Pirenópolis

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

Within 3 km, the terrain around Pirenópolis has significant variations in elevation — a maximum elevation change of 326 m around an average of 820 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 694 m; within 80 km, large variations in elevation — a maximum elevation change of 807 m.

The land around Pirenópolis is covered by trees (56%) and grassland (28%) within 3 km, trees (49%) and grassland (32%) within 16 km, and grassland (39%), trees (30%) and cropland (24%) within 80 km.

3 km
326 m
16 km
694 m
80 km
807 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Cocalzinho de Goiás 21 km · Jaraguá 41 km · Anápolis 53 km · Alexânia 55 km · Goianésia 62 km · Nerópolis 68 km · Águas Lindas de Goiás 73 km · Santo Antônio do Descoberto 76 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 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 Pirenópolis (-15.8507°, -48.9609°, elevation 751 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).