Climate averages 1991–2020

Águas Claras weather
in September.

A hot, fairly dry month: the warmest and the 5th driest of the year. Meets the pleasant-weather rule

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

Average high 28.8°C Daytime mean, September
Average low 18.0°C Night-time mean, September
Rainfall 34 mm 6 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Águas Claras · average highYear overview

September is a hot month in Águas Claras: daytime highs average 28.8°C and nights cool to about 18.0°C. By daytime temperature it is the warmest month of the year.

Expect about 34 mm of rain on roughly 6 days, which makes September a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average September day.

The nearest other city in this atlas is Riacho Fundo II (7 km away). In September its highs average 28.6°C, about as warm as Águas Claras, with 35 mm of rain.

Among the 448 cities listed in Brazil, Águas Claras ranks joint 156th of 448 for the warmest September highs and joint 111th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Águas Claras is 1.3°C warmer than that mean.

From September to October, average highs fall by 0.5°C to 28.3°C, and monthly rainfall rises from 34 mm to 123 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. 101520253035 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 2500

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

Every month, side by side

Águas Claras climate table

1991–2020
Monthly climate averages for Águas Claras, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 25.6°C18.0°C18.0°C22422.713.013 h
February 25.8°C18.0°C18.0°C20120.312.613 h
March 25.6°C17.9°C17.9°C21321.912.212 h
April 25.6°C17.3°C17.3°C9613.811.812 h
May 25.3°C15.9°C15.9°C203.511.411 h
June 24.8°C14.7°C14.7°C4.50.711.211 h
July 25.0°C14.4°C14.4°C0.40.111.311 h
August 26.9°C15.7°C15.7°C6.21.511.612 h
September, selected 28.8°C18.0°C18.0°C345.812.012 h
October 28.3°C18.6°C18.6°C12315.312.412 h
November 25.8°C18.0°C18.0°C22922.812.813 h
December 25.5°C18.1°C18.1°C24324.013.013 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 Águas Claras

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 Águas Claras) is explained once on the Águas Claras year overview and on the Sources, method and limits page.

Brasília lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.