Itaituba weather in September

In September, Itaituba sees average daytime highs of 34°C and overnight lows near 24°C, with 78 mm of rain across 13.2 wet days and about 12 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 33% 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 Itaituba's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Itaituba's year-round climate.

Daytime high
34°
1st warmest
Overnight low
24°
11th coldest
Rainfall
78 mm
13.2 wet days
Daylight
12 hours
6:39 AM – 6:38 PM
Cloud cover
58%
3rd clearest
Wind
5 km/h
2nd windiest
Solar energy
5.72 kWh/m²
Travel score
2.9
out of 10

Itaituba 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 34°C through the month.

A typical September day in Itaituba reaches about 34°C in the afternoon and slips back to 24°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 36°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13424
23424
33424
43424
53424
63424
73424
83424
93424
103424
113424
123424
133424
143424
153424
163424
173424
183424
193424
203424
213424
223424
233424
243424
253424
263424
273424
283424
293424
303424

How September really feels in Itaituba

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
30 feel dangerously hot (≥ 39°C)
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.

Itaituba weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°28927.512.22.8
Feb30° / 23°27926.212.12.7
Mar30° / 23°31928.6122.7
Apr30° / 23°28828.111.92.7
May30° / 23°20426.211.83.0
Jun31° / 23°8415.811.83.8
Jul32° / 23°5811.911.84.0
Aug33° / 23°5210.611.93.4
Sep34° / 24°7813.2122.9
Oct33° / 24°11617.212.12.7
Nov32° / 24°16219.712.22.8
Dec31° / 24°20923.812.22.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
35743
45644
55545
65545
75446
85347
95347
105347
115347
125347
135347
145347
155446
165446
175446
185446
195446
205446
215446
225347
235347
245446
255347
265347
275248
285149
295050
304951

Chance of precipitation in September

Any precipitation

Itaituba gets around 78 mm of rain over 13.2 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 44% and peaks near 48% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
142
242
343
443
543
644
744
844
943
1043
1143
1243
1343
1443
1543
1644
1744
1844
1944
2045
2145
2245
2345
2446
2546
2646
2747
2847
2947
3048

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
136037
235938
335938
435839
535839
635839
735839
835839
935839
1035839
1135839
1235839
1335740
1435740
1535641
1635641
1725642
1825543
1925543
2025444
2115445
2215445
2315445
2415346
2515346
2615346
2715346
2815346
2915346
3015346

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
286calm
296calm
306calm

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 6:46 AM to 6:32 AM, and sunset from 6:41 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:466:41
211.96:466:41
311.96:456:41
411.96:456:41
511.96:446:40
611.96:446:40
711.96:436:40
811.96:436:40
911.96:426:39
1012.06:426:39
1112.06:416:39
1212.06:416:39
1312.06:406:38
1412.06:406:38
1512.06:396:38
1612.06:396:38
1712.06:386:37
1812.06:386:37
1912.06:376:37
2012.06:376:37
2112.06:366:36
2212.06:366:36
2312.06:366:36
2412.06:356:36
2512.06:356:35
2612.06:346:35
2712.06:346:35
2812.06:336:35
2912.06:336:34
3012.06:326:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.72 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.1 kWh/m² to a high of 5.72 kWh/m² in September across the year — September's 5.72 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in September

Hazard calendar for Itaituba

In seasonPeak

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

Itaituba's rainy season runs November–May, when most of the year's rain falls.

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

Is September a good time to visit Itaituba?

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

2.9
Sightseeing
5th-best month of the year
5.6
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Itaituba.

What to pack for Itaituba in September

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

In September, Itaituba sees daytime highs around 34°C and nights near 24°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Itaituba in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Itaituba 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
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug11Extreme
Sep10Extreme
Oct10Extreme
Nov10Extreme
Dec11Extreme

Air quality in Itaituba 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 Itaituba is worst in August — around 47 µg/m³ PM2.5 (poor), about 5.2× the cleanest month (June, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateAug 2447 µg/m³Jun 119 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar13Moderate
Apr12Moderate
May10Good
Jun9Good
Jul15Moderate
Aug47Poor
Sep47Poor
Oct39Poor
Nov32Moderate
Dec20Moderate
Location & terrain

Where is Itaituba?

Itaituba sits at 4.3°S, 56.0°W, 13 m above sea level, in Brazil. The nearest listed city is Trairão, 33 km away.

Topography around Itaituba

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

Within 3 km, the terrain around Itaituba has only modest variations in elevation — a maximum elevation change of 59 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 124 m; within 80 km, significant variations in elevation — a maximum elevation change of 419 m.

The land around Itaituba is covered by water (52%) and artificial surfaces (21%) within 3 km, trees (59%) and grassland (28%) within 16 km, and trees (89%) within 80 km.

3 km
59 m
16 km
124 m
80 km
419 m
treesgrasslandartificial surfaceswater
September weather nearby: Trairão 33 km · Aveiro 104 km · Rurópolis 121 km · Placas 201 km · Parintins 201 km · Barreirinha 204 km · Belterra 216 km · Maués 217 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 Itaituba (-4.2761°, -55.9836°, elevation 13 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).