Itumbiara weather in September

In September, Itumbiara sees average daytime highs of 33°C and overnight lows near 21°C, with 31 mm of rain across 4.8 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 33°C through the month. The sky is clear or mostly clear about 59% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Itumbiara's 4th-clearest and 2nd-windiest month. For the whole year in context, see Itumbiara's year-round climate.

Daytime high
33°
1st warmest
Overnight low
21°
6th coldest
Rainfall
31 mm
4.8 wet days
Daylight
11 h 54 min
7:14 AM – 7:08 PM
Cloud cover
38%
4th clearest
Wind
10 km/h
2nd windiest
Solar energy
6.01 kWh/m²
Travel score
4.1
out of 10

Itumbiara 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 33°C through the month.

A typical September day in Itumbiara reaches about 33°C in the afternoon and slips back to 21°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 37°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13320
23320
33320
43320
53320
63320
73320
83320
93320
103320
113321
123321
133321
143321
153321
163321
173321
183321
193321
203321
213321
223321
233321
243321
253321
263321
273321
283321
293321
303321

How September really feels in Itumbiara

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.

Itumbiara 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
Jan30° / 22°21321.5133.5
Feb30° / 22°1551912.63.6
Mar30° / 22°14518.412.13.9
Apr30° / 21°508.611.65.1
May29° / 18°193.411.16.5
Jun29° / 17°71.210.97.2
Jul29° / 17°50.7117.1
Aug31° / 18°6111.45.8
Sep33° / 21°314.811.94.1
Oct33° / 22°8712.512.43.3
Nov31° / 22°15619.212.93.4
Dec30° / 22°20422.613.13.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 59% 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 29%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17921
27921
37921
47822
57822
67921
77921
87822
97822
107723
117723
127723
137525
147525
157426
167327
177228
187129
197129
206931
216733
226733
236535
246436
256238
266139
276040
286040
295941
305842

Chance of precipitation in September

Any precipitation

Itumbiara gets around 31 mm of rain over 4.8 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 16% and peaks near 31% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
17
27
37
48
58
68
79
89
910
1010
1111
1212
1312
1413
1514
1615
1716
1817
1918
2019
2120
2221
2323
2424
2525
2626
2728
2829
2930
3031

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 13% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
163221230
262221240
362221240
460221350
559221450
658221460
757221560
856221570
956221570
1053231680
1151231790
1250241790
13482418100
14462519100
15442520110
16432520120
17412521120
18392522130
19382523140
20362524150
21342524160
22332525170
23312426190
24302327200
25282327220
26272228240
27262128250
28252028270
29241928280
30231828301

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 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 30 minutes over September. Sunrise moves from 7:28 AM to 7:02 AM, and sunset from 7:06 PM to 7:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:287:06
211.77:277:06
311.77:267:06
411.77:257:06
511.77:247:06
611.77:237:06
711.77:227:07
811.87:217:07
911.87:217:07
1011.87:207:07
1111.87:197:07
1211.87:187:07
1311.87:177:08
1411.97:167:08
1511.97:157:08
1611.97:147:08
1711.97:137:08
1811.97:127:08
1912.07:127:09
2012.07:117:09
2112.07:107:09
2212.07:097:09
2312.07:087:09
2412.07:077:09
2512.17:067:10
2612.17:057:10
2712.17:047:10
2812.17:037:10
2912.17:037:10
3012.17:027:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.01 kWh/m².

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 6.24 kWh/m² in October across the year — September's 6.01 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
116.0Bright
126.0Bright
136.0Bright
146.0Bright
156.0Bright
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for Itumbiara

In seasonPeak

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

Itumbiara'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 Itumbiara?

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

4.1
Sightseeing
6th-best month of the year
7.2
Beach & pool
5th-best month of the year

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

What to pack for Itumbiara in September

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

In September, Itumbiara sees daytime highs around 33°C and nights near 21°C. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Itumbiara in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Itumbiara peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 24UV 15Jun 20UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May8Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep11Extreme
Oct12Extreme
Nov12Extreme
Dec14Extreme

Air quality in Itumbiara 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 Itumbiara is worst in September — around 37 µg/m³ PM2.5 (poor), about 6.6× the cleanest month (November, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1534 µg/m³Nov 226 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr7Good
May7Good
Jun7Good
Jul8Good
Aug16Moderate
Sep37Poor
Oct12Moderate
Nov6Good
Dec6Good
Location & terrain

Where is Itumbiara?

Itumbiara sits at 18.4°S, 49.2°W, 450 m above sea level, in Brazil. The nearest listed city is Goiatuba, 48 km away.

Topography around Itumbiara

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

Within 3 km, the terrain around Itumbiara has only modest variations in elevation — a maximum elevation change of 77 m around an average of 476 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 307 m; within 80 km, significant variations in elevation — a maximum elevation change of 534 m.

The land around Itumbiara is covered by artificial surfaces (48%) and cropland (24%) within 3 km, cropland (65%) within 16 km, and cropland (53%), grassland (22%) and trees (21%) within 80 km.

3 km
77 m
16 km
307 m
80 km
534 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Goiatuba 48 km · Tupaciguara 57 km · Bom Jesus de Goiás 59 km · Monte Alegre de Minas 61 km · Ituiutaba 67 km · Morrinhos 77 km · Caldas Novas 97 km · Pontalina 102 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 Itumbiara (-18.4192°, -49.2153°, elevation 450 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).