Conceição do Araguaia weather in September

In September, Conceição do Araguaia sees average daytime highs of 35°C and overnight lows near 24°C, with 33 mm of rain across 5 wet days and about 12 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 35°C through the month. The sky is clear or mostly clear about 53% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Conceição do Araguaia's 4th-clearest and 4th-windiest month. For the whole year in context, see Conceição do Araguaia's year-round climate.

Daytime high
35°
2nd warmest
Overnight low
24°
11th coldest
Rainfall
33 mm
5 wet days
Daylight
12 hours
6:13 AM – 6:10 PM
Cloud cover
44%
4th clearest
Wind
7 km/h
4th windiest
Solar energy
6.06 kWh/m²
Travel score
3.0
out of 10

Conceição do Araguaia 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 35°C through the month.

A typical September day in Conceição do Araguaia reaches about 35°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 37°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13523
23523
33523
43523
53523
63523
73524
83524
93524
103524
113524
123524
133524
143524
153524
163524
173524
183524
193524
203524
213524
223424
233424
243424
253424
263424
273424
283424
293424
303424

How September really feels in Conceição do Araguaia

Once humidity and wind are folded in, September averages 30 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
30
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.

Conceição do Araguaia weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°29627.912.42.7
Feb30° / 23°26825.512.32.7
Mar31° / 23°26827.612.12.7
Apr31° / 23°18221.611.83.1
May32° / 23°7911.311.63.9
Jun33° / 23°41.111.54.3
Jul34° / 22°20.311.63.9
Aug35° / 23°30.811.73.1
Sep35° / 24°335123.0
Oct33° / 24°11415.812.23.1
Nov31° / 24°20421.812.43.0
Dec31° / 23°23825.712.52.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28020
38020
48020
57921
67822
77822
87822
97624
107624
117525
127525
137327
147327
157228
167228
177030
186931
196832
206832
216634
226535
236436
246436
256337
266337
276238
286040
296040
305941

Chance of precipitation in September

Any precipitation

Conceição do Araguaia gets around 33 mm of rain over 5 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 17% and peaks near 34% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
17
27
38
48
59
69
79
810
910
1011
1111
1212
1313
1413
1514
1615
1716
1817
1919
2020
2121
2223
2324
2425
2527
2628
2730
2831
2933
3034

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 71% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11173034170
21173034190
31162934200
41162933210
51162833220
61162833230
71152732240
81152732250
91152632270
101142532280
111132432290
121132332310
131122232320
141112132340
151112032360
161101932380
17191732410
18191631430
19181431460
20171330490
21161229520
22161028550
2315927580
2404826611
2504725631
2603624661
2703523681
2802522701
2902421721
3001420732

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 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 18 minutes over September. Sunrise moves from 6:22 AM to 6:04 AM, and sunset from 6:12 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:226:12
211.86:216:12
311.96:206:12
411.96:206:12
511.96:196:12
611.96:196:11
711.96:186:11
811.96:186:11
911.96:176:11
1011.96:166:11
1111.96:166:11
1211.96:156:11
1311.96:156:10
1411.96:146:10
1511.96:136:10
1612.06:136:10
1712.06:126:10
1812.06:126:10
1912.06:116:10
2012.06:106:10
2112.06:106:09
2212.06:096:09
2312.06:096:09
2412.06:086:09
2512.06:076:09
2612.06:076:09
2712.06:066:09
2812.06:066:09
2912.16:056:08
3012.16:046:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.06 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.74 kWh/m² to a high of 6.06 kWh/m² in September across the year — September's 6.06 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Intense
46.0Intense
56.0Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
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 Conceição do Araguaia

In seasonPeak

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

Conceição do Araguaia's monsoon runs November–April, 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 Conceição do Araguaia?

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

3.0
Sightseeing
7th-best month of the year
6.3
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Conceição do Araguaia. The water and warmth also suit a beach or pool day.

What to pack for Conceição do Araguaia in September

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

In September, Conceição do Araguaia sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Conceição do Araguaia in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Conceição do Araguaia peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 10UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct10Extreme
Nov12Extreme
Dec11Extreme

Air quality in Conceição do Araguaia 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 Conceição do Araguaia is worst in September — around 81 µg/m³ PM2.5 (unhealthy), about 8.1× the cleanest month (June, 10 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyModerateSep 1674 µg/m³Jun 2310 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb11Good
Mar12Good
Apr12Good
May10Good
Jun10Good
Jul10Good
Aug30Moderate
Sep81Unhealthy
Oct30Moderate
Nov19Moderate
Dec16Moderate
Location & terrain

Where is Conceição do Araguaia?

Conceição do Araguaia sits at 8.3°S, 49.3°W, 180 m above sea level, in Brazil. The nearest listed city is Santa Maria das Barreiras, 83 km away.

Topography around Conceição do Araguaia

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

Within 3 km, the terrain around Conceição do Araguaia has only modest variations in elevation — a maximum elevation change of 70 m around an average of 164 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 488 m; within 80 km, significant variations in elevation — a maximum elevation change of 573 m.

The land around Conceição do Araguaia is covered by trees (29%), water (24%) and grassland (23%) within 3 km, grassland (48%) and trees (43%) within 16 km, and grassland (62%) and trees (34%) within 80 km.

3 km
70 m
16 km
488 m
80 km
573 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Santa Maria das Barreiras 83 km · Redenção 88 km · Colinas do Tocantins 90 km · Floresta do Araguaia 93 km · Guaraí 105 km · Rio Maria 136 km · Xinguara 149 km · Araguaína 167 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 Conceição do Araguaia (-8.2644°, -49.2698°, elevation 180 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).