Climate averages 1991–2020

Alfenas weather
in September.

A warm, moderately wet month: the 5th warmest and the 6th driest of the year. Meets the pleasant-weather rule

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

Average high 26.1°C Daytime mean, September
Average low 15.5°C Night-time mean, September
Rainfall 64 mm 7 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Alfenas · average highYear overview

September is a warm month in Alfenas: daytime highs average 26.1°C and nights cool to about 15.5°C. By daytime temperature it is the 5th warmest of the 12 months.

Expect about 64 mm of rain on roughly 7 days, which makes September a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 57 min on an average September day.

The nearest other city in this atlas is Varginha (55 km away). In September its highs average 26.3°C, about as warm as Alfenas, with 66 mm of rain.

Among the 448 cities listed in Brazil, Alfenas ranks joint 288th of 448 for the warmest September highs and joint 225th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Alfenas is 1.4°C cooler than that mean.

From September to October, average highs rise by 0.5°C to 26.6°C, and monthly rainfall rises from 64 mm to 95 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. 1015202530 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

Alfenas climate table

1991–2020
Monthly climate averages for Alfenas, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 26.5°C19.1°C19.1°C24522.013.313 h
February 26.8°C19.1°C19.1°C15116.612.813 h
March 26.0°C18.5°C18.5°C14116.612.212 h
April 25.0°C16.9°C16.9°C527.811.612 h
May 22.8°C14.0°C14.0°C394.711.111 h
June 22.0°C12.4°C12.4°C162.910.811 h
July 22.3°C12.1°C12.1°C152.311.011 h
August 24.3°C13.1°C13.1°C183.311.411 h
September, selected 26.1°C15.5°C15.5°C647.212.012 h
October 26.6°C17.3°C17.3°C9512.512.613 h
November 25.7°C17.8°C17.8°C17217.713.113 h
December 26.2°C18.7°C18.7°C20421.113.413 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 Alfenas

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