Climate averages 1991–2020

Itaituba weather
in September.

A hot, moderately wet month: the warmest and the 3rd driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 32.9°C Daytime mean, September
Average low 24.1°C Night-time mean, September
Rainfall 78 mm 13 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Itaituba · average highYear overview

September is a hot month in Itaituba: daytime highs average 32.9°C and nights cool to about 24.1°C. By daytime temperature it is the warmest month of the year.

Expect about 78 mm of rain on roughly 13 days, which makes September a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 05 min on an average September day.

The nearest other city in this atlas is Parintins (201 km away). In September its highs average 31.7°C, 1.2°C cooler than Itaituba, with 94 mm of rain.

Among the 448 cities listed in Brazil, Itaituba ranks joint 50th of 448 for the warmest September highs and joint 278th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Itaituba is 5.4°C warmer than that mean.

From September to October, average highs fall by 0.4°C to 32.5°C, and monthly rainfall rises from 78 mm to 116 mm.

The annual picture

September in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 20253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Itaituba climate table

1991–2020
Monthly climate averages for Itaituba, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 29.3°C23.5°C23.5°C28927.512.312 h
February 29.2°C23.4°C23.4°C28326.412.212 h
March 29.1°C23.4°C23.4°C31928.612.112 h
April 29.0°C23.4°C23.4°C28728.112.012 h
May 29.1°C23.4°C23.4°C20326.111.912 h
June 29.8°C23.1°C23.1°C8415.811.912 h
July 30.7°C23.0°C23.0°C5811.911.912 h
August 32.5°C23.5°C23.5°C5210.512.012 h
September, selected 32.9°C24.1°C24.1°C7813.212.112 h
October 32.5°C24.3°C24.3°C11617.212.212 h
November 31.3°C24.2°C24.2°C16219.612.312 h
December 30.3°C23.9°C23.9°C20923.812.412 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

September in nearby cities

Distance from Itaituba

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Itaituba) is explained once on the Itaituba year overview and on the Sources, method and limits page.