Curionópolis weather in September

In September, Curionópolis sees average daytime highs of 33°C and overnight lows near 23°C, with 25 mm of rain across 4.6 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 33°C through the month. The sky is clear or mostly clear about 55% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Curionópolis's 4th-clearest and 3rd-windiest month. For the whole year in context, see Curionópolis's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
23°
11th coldest
Rainfall
25 mm
4.6 wet days
Daylight
12 hours
6:14 AM – 6:12 PM
Cloud cover
43%
4th clearest
Wind
7 km/h
3rd windiest
Solar energy
6.17 kWh/m²
Travel score
3.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical September day in Curionópolis reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13423
23423
33423
43423
53423
63323
73323
83323
93323
103323
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303323

How September really feels in Curionópolis

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.

Curionópolis 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° / 22°27028.412.32.9
Feb30° / 22°26226.112.22.8
Mar30° / 23°26528.4122.9
Apr30° / 23°19525.111.93.0
May31° / 22°10816.911.73.9
Jun32° / 22°214.711.74.8
Jul33° / 22°91.911.74.6
Aug34° / 22°71.311.84.1
Sep33° / 23°254.6123.9
Oct32° / 23°8013.412.13.7
Nov31° / 23°1592012.33.4
Dec30° / 23°20825.312.33.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18416
28317
38218
48218
58218
68119
78119
88020
97921
107921
117822
127822
137723
147723
157624
167426
177426
187327
197228
207129
217030
227030
236832
246832
256733
266634
276634
286535
296436
306436

Chance of precipitation in September

Any precipitation

Curionópolis gets around 25 mm of rain over 4.6 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 15% and peaks near 28% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
17
28
39
49
510
610
711
811
911
1012
1112
1212
1312
1412
1513
1613
1714
1814
1915
2016
2117
2218
2320
2421
2522
2623
2725
2826
2927
3028

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 94% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
111151370
211150390
311049400
411049410
511048420
61947430
70946440
80945450
90944460
100943480
110942490
120840520
130839530
140738550
150637570
160635590
170534610
180533620
190431650
200429670
210328690
220326710
230224730
240223750
250221770
260120790
270119800
280117811
290116821
300015841

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 6:22 AM to 6:06 AM, and sunset from 6:15 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:226:15
211.96:216:14
311.96:216:14
411.96:206:14
511.96:206:14
611.96:196:14
711.96:196:14
811.96:186:13
911.96:176:13
1011.96:176:13
1111.96:166:13
1211.96:166:13
1311.96:156:12
1412.06:156:12
1512.06:146:12
1612.06:146:12
1712.06:136:12
1812.06:136:11
1912.06:126:11
2012.06:126:11
2112.06:116:11
2212.06:106:11
2312.06:106:10
2412.06:096:10
2512.06:096:10
2612.06:086:10
2712.06:086:10
2812.06:076:09
2912.06:076:09
3012.06:066:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.17 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.34 kWh/m² to a high of 6.17 kWh/m² in September across the year — September's 6.17 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Curionópolis

In seasonPeak

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

Curionópolis'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 Curionópolis?

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

3.9
Sightseeing
4th-best month of the year
7.1
Beach & pool
4th-best month of the year

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

What to pack for Curionópolis in September

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

In September, Curionópolis sees daytime highs around 33°C and nights near 23°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Curionópolis 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 Curionópolis peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 11UV 15Jul 12UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct11Extreme
Nov11Extreme
Dec11Extreme

Air quality in Curionópolis 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 Curionópolis is worst in September — around 42 µg/m³ PM2.5 (poor), about 6.1× the cleanest month (June, 7 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateSep 1940 µg/m³Jun 197 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb12Good
Mar12Good
Apr12Good
May9Good
Jun7Good
Jul8Good
Aug20Moderate
Sep42Poor
Oct32Moderate
Nov25Moderate
Dec17Moderate
Location & terrain

Where is Curionópolis?

Curionópolis sits at 6.1°S, 49.6°W, 210 m above sea level, in Brazil. The nearest listed city is Eldorado dos Carajás, 27 km away.

Topography around Curionópolis

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

Within 3 km, the terrain around Curionópolis has only modest variations in elevation — a maximum elevation change of 110 m around an average of 198 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 593 m; within 80 km, large variations in elevation — a maximum elevation change of 785 m.

The land around Curionópolis is covered by grassland (76%) within 3 km, grassland (69%) and trees (30%) within 16 km, and grassland (62%) and trees (37%) within 80 km.

3 km
110 m
16 km
593 m
80 km
785 m
treesgrasslandartificial surfacesbare terrain
September weather nearby: Eldorado dos Carajás 27 km · Parauapebas 34 km · Canaã dos Carajás 55 km · Marabá 95 km · Itupiranga 112 km · São Domingos do Araguaia 114 km · Xinguara 117 km · São Geraldo do Araguaia 120 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 Curionópolis (-6.1017°, -49.5981°, elevation 210 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).